JP2018126765A - Jointing method - Google Patents

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JP2018126765A
JP2018126765A JP2017021437A JP2017021437A JP2018126765A JP 2018126765 A JP2018126765 A JP 2018126765A JP 2017021437 A JP2017021437 A JP 2017021437A JP 2017021437 A JP2017021437 A JP 2017021437A JP 2018126765 A JP2018126765 A JP 2018126765A
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metal member
auxiliary
metal
joining
auxiliary member
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堀 久司
Hisashi Hori
久司 堀
伸城 瀬尾
Nobushiro Seo
伸城 瀬尾
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Nippon Light Metal Co Ltd
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Nippon Light Metal Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To prevent metal shortage in a jointing part and flatten a metal component after joining.SOLUTION: A jointing method comprises: a butting step of forming a butting part by butting an end face 1a in one end side of a first metallic component 1 against an end face 2a in one end side of a second metallic component 2 and making the first metallic component 1 and the second metallic component 2 slant so that the one end sides of the first metallic component 1 and the second metallic component 2 are higher than the other end sides thereof; an arrangement step of arranging an auxiliary member 10 to be in surface-contact with the first metallic component 1 or the second metallic component 2; and a friction agitation step of jointing the first metallic component 1, the second metallic component 2, and the auxiliary member 10 by relatively moving a rotary tool F along the butting part J while a rotating agitation pin F2 is inserted into the butting part from a front side of the auxiliary member 10, and only the agitation pin F2 contacts with the first metallic component 1, the second metallic component 2, and the auxiliary member 10.SELECTED DRAWING: Figure 2

Description

本発明は、金属部材同士を摩擦攪拌で接合する接合方法に関する。   The present invention relates to a joining method for joining metal members together by friction stirring.

例えば、特許文献1には、第一金属部材と第二金属部材とを摩擦攪拌で接合する接合方法が開示されている。当該接合方法では、第一金属部材と第二金属部材とを突き合わせて突合せ部を形成した後、回転ツールの攪拌ピンのみを第一金属部材及び第二金属部材に接触させた状態で突合せ部に対して摩擦攪拌を行うというものである。   For example, Patent Document 1 discloses a joining method in which a first metal member and a second metal member are joined by friction stirring. In the joining method, after the first metal member and the second metal member are butted together to form a butted portion, only the stirring pin of the rotary tool is brought into contact with the first metal member and the second metal member. On the other hand, friction stirring is performed.

特開2013−39613号公報JP 2013-39613 A

従来の接合方法であると、塑性流動化した金属を回転ツールのショルダ部で押さえないため、塑性流動化した金属が外部に溢れ出し接合部が金属不足になるという問題がある。   In the conventional joining method, since the plastic fluidized metal is not pressed by the shoulder portion of the rotary tool, there is a problem that the plastic fluidized metal overflows to the outside and the joint becomes insufficient.

さらに、摩擦攪拌接合を行うと、回転ツールの移動軌跡に塑性化領域が形成されるが、当該塑性化領域が熱収縮するため、接合後の金属部材同士が表面側に凹状に形成するという問題がある。   Furthermore, when friction stir welding is performed, a plasticized region is formed in the movement trajectory of the rotary tool. However, since the plasticized region is thermally contracted, the metal members after bonding are formed in a concave shape on the surface side. There is.

そこで、本発明は、接合部の金属不足を防ぐことができるとともに接合後の金属部材を平坦にすることができる接合方法を提供することを課題とする。   Then, this invention makes it a subject to provide the joining method which can prevent the metal shortage of a junction part and can make the metal member after joining flat.

前記課題を解決するための第一の本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材及び前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材を傾斜させた状態で突合せ部を形成する突合せ工程と、前記第一金属部材又は前記第二金属部材に面接触するように補助部材を配置する配置工程と、回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法である。   A first aspect of the present invention for solving the above-described problem is a joining method for joining a first metal member and a second metal member using a rotary tool having a stirring pin, and one end of the first metal member The first metal member and the first metal member and the second metal member so that the one end side is higher than the other end side of the first metal member and the second metal member. A butting step of forming a butting portion in a state where the second metal member is inclined; an arranging step of arranging an auxiliary member so as to make surface contact with the first metal member or the second metal member; and the rotating stirring pin Is inserted from the surface side of the auxiliary member, and the rotary tool is relatively moved along the abutting portion in a state where only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member. The first metal member, front And friction stir bonding a second metal member and the auxiliary member is a joining method which comprises a.

かかる接合方法によれば、第一金属部材と第二金属部材とが接合されるとともに、第一金属部材及び第二金属部材に加え、補助部材も同時に摩擦攪拌接合することにより、接合部の金属不足を防ぐことができる。また、摩擦攪拌接合を行う前に金属部材を予め傾斜させておき、摩擦攪拌接合後の熱収縮を利用することで、接合された金属部材を平坦にすることができる。   According to this joining method, the first metal member and the second metal member are joined, and in addition to the first metal member and the second metal member, the auxiliary member is also simultaneously friction stir welded, whereby Shortage can be prevented. Moreover, the metal member joined in advance before the friction stir welding can be flattened by using the thermal shrinkage after the friction stir welding.

また、前記発明は、バリが形成された前記補助部材を前記第一金属部材又は前記第二金属部材から除去する除去工程を含むことが好ましい。かかる接合方法によれば、バリを補助部材ごと除去できるので除去工程が容易となる。   Moreover, it is preferable that the said invention includes the removal process which removes the said auxiliary member in which the burr | flash was formed from said 1st metal member or said 2nd metal member. According to such a joining method, since the burr can be removed together with the auxiliary member, the removal process becomes easy.

さらに、前記摩擦攪拌工程では、摩擦攪拌接合で発生するバリが前記補助部材に形成されるように接合条件を設定することが好ましい。かかる接合方法によれば、バリを除去する作業をより容易に行うことができる。   Furthermore, in the friction stir step, it is preferable to set the joining conditions so that burrs generated in the friction stir welding are formed on the auxiliary member. According to such a joining method, the work of removing burrs can be performed more easily.

前記課題を解決するための第二の本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材及び前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材を傾斜させた状態で突合せ部を形成する突合せ工程と、前記第一金属部材及び前記第二金属部材上に補助部材を配置する配置工程と、回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法である。   A second aspect of the present invention for solving the above-described problem is a joining method for joining a first metal member and a second metal member using a rotary tool provided with a stirring pin, and one end of the first metal member. The first metal member and the first metal member and the second metal member so that the one end side is higher than the other end side of the first metal member and the second metal member. A butting step of forming a butting portion in a state where the second metal member is inclined; an arranging step of arranging an auxiliary member on the first metal member and the second metal member; and the stirring pin rotating The rotating tool is relatively moved along the abutting portion in a state where only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member. Metal member, the second metal member And friction stir bonding a fine auxiliary member is a joining method which comprises a.

かかる接合方法によれば、第一金属部材と第二金属部材とが接合されるとともに、第一金属部材及び第二金属部材に加え、補助部材も同時に摩擦攪拌接合することにより、接合部の金属不足を防ぐことができる。補助部材が第一金属部材上と第二金属部材上の両方に配置されるので、バランスよく接合できるとともに金属を充分に補充できる。また、摩擦攪拌接合を行う前に金属部材を予め傾斜させておき、摩擦攪拌接合後の熱収縮を利用することで、接合された金属部材を平坦にすることができる。   According to this joining method, the first metal member and the second metal member are joined, and in addition to the first metal member and the second metal member, the auxiliary member is also simultaneously friction stir welded, whereby Shortage can be prevented. Since the auxiliary member is disposed on both the first metal member and the second metal member, the auxiliary member can be joined in a balanced manner and the metal can be sufficiently supplemented. Moreover, the metal member joined in advance before the friction stir welding can be flattened by using the thermal shrinkage after the friction stir welding.

また、前記発明は、バリが形成された前記補助部材を前記第一金属部材及び前記第二金属部材から除去する除去工程を含むことが好ましい。かかる接合方法によれば、バリを補助部材ごと除去できるので除去工程が容易となる。   Moreover, it is preferable that the said invention includes the removal process which removes the said auxiliary member in which the burr | flash was formed from said 1st metal member and said 2nd metal member. According to such a joining method, since the burr can be removed together with the auxiliary member, the removal process becomes easy.

さらに、前記配置工程では、前記補助部材を前記第一金属部材及び前記第二金属部材のいずれか一方に載置しつつ、前記補助部材の端部が前記突合せ部を挟んで他方の金属部材側に突出するように配置し、 前記摩擦攪拌工程では、前記補助部材のうち当該補助部材が載置された一方の金属部材側に摩擦攪拌接合で発生するバリが形成されるように接合条件を設定することが好ましい。   Furthermore, in the arrangement step, the auxiliary member is placed on one of the first metal member and the second metal member, and the end of the auxiliary member is on the other metal member side with the butting portion interposed therebetween. In the friction stirring step, the joining conditions are set so that burrs generated by friction stir welding are formed on the side of one of the auxiliary members on which the auxiliary member is placed. It is preferable to do.

前記課題を解決するための第三の本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材又は前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させた状態で突合せ部を形成する突合せ工程と、前記第一金属部材又は前記第二金属部材に面接触するように補助部材を配置する配置工程と、回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法である。   A third aspect of the present invention for solving the above-described problems is a joining method for joining a first metal member and a second metal member using a rotary tool having a stirring pin, and one end of the first metal member The first metal member and the one end side of the second metal member are butted against the other end side of the first metal member or the second metal member. A butting step of forming a butting portion in a state in which any one of the second metal members is inclined, an arranging step of arranging an auxiliary member so as to be in surface contact with the first metal member or the second metal member, and rotation The rotating tool is inserted along the abutting portion with the stirring pin inserted from the surface side of the auxiliary member and only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member. To move the relative Metal member, the friction stir bonding a said second metal member and the auxiliary member is a joining method which comprises a.

かかる接合方法によれば、第一金属部材と第二金属部材とが接合されるとともに、第一金属部材及び第二金属部材に加え、補助部材も同時に摩擦攪拌接合することにより、接合部の金属不足を防ぐことができる。また、摩擦攪拌接合を行う前に金属部材を予め傾斜させておき、摩擦攪拌接合後の熱収縮を利用することで、接合された金属部材を平坦にすることができる。   According to this joining method, the first metal member and the second metal member are joined, and in addition to the first metal member and the second metal member, the auxiliary member is also simultaneously friction stir welded, whereby Shortage can be prevented. Moreover, the metal member joined in advance before the friction stir welding can be flattened by using the thermal shrinkage after the friction stir welding.

また、前記発明は、前記突合せ工程では、第一金属部材及び前記第二金属部材を載置する載置部に形成された段差を利用して前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させ、前記第一金属部材及び前記第二金属部材のいずれか他方を前記載置部上に水平に載置することが好ましい。このような方法によれば、載置部の段差を利用することで、金属部材を容易に傾斜させることができる。   In the butting step, any one of the first metal member and the second metal member may be utilized by using a step formed on a placement portion on which the first metal member and the second metal member are placed. It is preferable that either one of the first metal member and the second metal member is horizontally placed on the placement portion. According to such a method, the metal member can be easily inclined by using the step of the placement portion.

さらに、バリが形成された前記補助部材を前記第一金属部材又は前記第二金属部材から除去する除去工程を含むことが好ましい。かかる接合方法によれば、バリを補助部材ごと除去できるので除去工程が容易となる。   Furthermore, it is preferable to include a removing step of removing the auxiliary member on which the burr is formed from the first metal member or the second metal member. According to such a joining method, since the burr can be removed together with the auxiliary member, the removal process becomes easy.

また、前記摩擦攪拌工程では、摩擦攪拌接合で発生するバリが前記補助部材に形成されるように接合条件を設定することが好ましい。かかる接合方法によれば、バリを除去する作業をより容易に行うことができる。   In the friction stirring step, it is preferable to set the joining conditions so that burrs generated in the friction stir welding are formed on the auxiliary member. According to such a joining method, the work of removing burrs can be performed more easily.

前記課題を解決するための第四の本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材又は前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させた状態で突合せ部を形成する突合せ工程と、前記第一金属部材及び前記第二金属部材上に補助部材を配置する配置工程と、回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法である。   A fourth aspect of the present invention for solving the above-described problem is a joining method for joining a first metal member and a second metal member using a rotary tool provided with a stirring pin, and one end of the first metal member The first metal member and the one end side of the second metal member are butted against the other end side of the first metal member or the second metal member. A butting step of forming a butting portion in a state where any one of the second metal members is inclined; an arranging step of arranging an auxiliary member on the first metal member and the second metal member; and the rotating stirring pin Is inserted from the surface side of the auxiliary member, and the rotary tool is relatively moved along the abutting portion in a state where only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member. The first metal member, front And friction stir bonding a second metal member and the auxiliary member is a joining method which comprises a.

かかる接合方法によれば、第一金属部材と第二金属部材とが接合されるとともに、第一金属部材及び第二金属部材に加え、補助部材も同時に摩擦攪拌接合することにより、接合部の金属不足を防ぐことができる。補助部材が第一金属部材上と第二金属部材上の両方に配置されるので、バランスよく接合できるとともに金属を充分に補充できる。また、摩擦攪拌接合を行う前に金属部材を予め傾斜させておき、摩擦攪拌接合後の熱収縮を利用することで、接合された金属部材を平坦にすることができる。   According to this joining method, the first metal member and the second metal member are joined, and in addition to the first metal member and the second metal member, the auxiliary member is also simultaneously friction stir welded, whereby Shortage can be prevented. Since the auxiliary member is disposed on both the first metal member and the second metal member, the auxiliary member can be joined in a balanced manner and the metal can be sufficiently supplemented. Moreover, the metal member joined in advance before the friction stir welding can be flattened by using the thermal shrinkage after the friction stir welding.

また、前記発明は、前記突合せ工程では、第一金属部材及び前記第二金属部材を載置する載置部に形成された段差を利用して前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させ、前記第一金属部材及び前記第二金属部材のいずれか他方を前記載置部上に水平に載置することが好ましい。このような方法によれば、載置部の段差を利用することで、金属部材を容易に傾斜させることができる。   In the butting step, any one of the first metal member and the second metal member may be utilized by using a step formed on a placement portion on which the first metal member and the second metal member are placed. It is preferable that either one of the first metal member and the second metal member is horizontally placed on the placement portion. According to such a method, the metal member can be easily inclined by using the step of the placement portion.

また、前記発明は、バリが形成された前記補助部材を前記第一金属部材及び前記第二金属部材から除去する除去工程を含むことが好ましい。かかる接合方法によれば、バリを補助部材ごと除去できるので除去工程が容易となる。   Moreover, it is preferable that the said invention includes the removal process which removes the said auxiliary member in which the burr | flash was formed from said 1st metal member and said 2nd metal member. According to such a joining method, since the burr can be removed together with the auxiliary member, the removal process becomes easy.

さらに、前記配置工程では、前記補助部材を前記第一金属部材及び前記第二金属部材のいずれか一方に載置しつつ、前記補助部材の端部が前記突合せ部を挟んで他方の金属部材側に突出するように配置し、 前記摩擦攪拌工程では、前記補助部材のうち当該補助部材が載置された一方の金属部材側に摩擦攪拌接合で発生するバリが形成されるように接合条件を設定することが好ましい。   Furthermore, in the arrangement step, the auxiliary member is placed on one of the first metal member and the second metal member, and the end of the auxiliary member is on the other metal member side with the butting portion interposed therebetween. In the friction stirring step, the joining conditions are set so that burrs generated by friction stir welding are formed on the side of one of the auxiliary members on which the auxiliary member is placed. It is preferable to do.

本発明に係る接合方法によれば、接合部の金属不足を防ぐことができるとともに接合後の金属部材を平坦にすることができる。   According to the joining method according to the present invention, it is possible to prevent metal shortage at the joint portion and to flatten the metal member after joining.

本発明の第一実施形態に係る接合方法の突合せ工程および配置工程を示した断面図である。It is sectional drawing which showed the butt | matching process and arrangement | positioning process of the joining method which concern on 1st embodiment of this invention. 本発明の第一実施形態に係る接合方法の接合工程を示した断面図である。It is sectional drawing which showed the joining process of the joining method which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る接合方法の除去工程を示した断面図である。It is sectional drawing which showed the removal process of the joining method which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る接合方法の除去工程後を示した断面図である。It is sectional drawing which showed the removal process after the joining method which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る接合方法の第一変形例の突合せ工程を示した断面図である。It is sectional drawing which showed the butt | matching process of the 1st modification of the joining method which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る接合方法の第二変形例の突合せ工程を示した断面図である。It is sectional drawing which showed the butt | matching process of the 2nd modification of the joining method which concerns on 1st embodiment of this invention. 本発明の第二実施形態に係る接合方法の突合せ工程の傾斜前を示した断面図である。It is sectional drawing which showed before the inclination of the butt | matching process of the joining method which concerns on 2nd embodiment of this invention. 本発明の第二実施形態に係る接合方法の突合せ工程の傾斜後および配置工程を示した断面図である。It is sectional drawing which showed after the inclination of the butt | matching process of the joining method which concerns on 2nd embodiment of this invention, and an arrangement | positioning process. 本発明の第二実施形態に係る接合方法の接合工程を示した断面図である。It is sectional drawing which showed the joining process of the joining method which concerns on 2nd embodiment of this invention. 本発明の第二実施形態に係る接合方法の除去工程を示した断面図である。It is sectional drawing which showed the removal process of the joining method which concerns on 2nd embodiment of this invention. 本発明の第二実施形態に係る接合方法の除去工程後を示した断面図である。It is sectional drawing which showed the removal process after the joining method which concerns on 2nd embodiment of this invention. 本発明の第二実施形態に係る接合方法の第一変形例の準備工程を示した断面図である。It is sectional drawing which showed the preparatory process of the 1st modification of the joining method which concerns on 2nd embodiment of this invention.

[第一実施形態]
本発明の第一実施形態に係る接合方法について説明する。本実施形態に係る接合方法では、突合せ工程と、配置工程と、接合工程と、除去工程と、を行う。なお、以下の説明における「表面」とは、「裏面」の反対側の面という意味である。
[First embodiment]
The joining method according to the first embodiment of the present invention will be described. In the joining method according to the present embodiment, a butt process, an arrangement process, a joining process, and a removing process are performed. In the following description, “front surface” means a surface opposite to the “back surface”.

突合せ工程は、図1に示すように第一金属部材1と第二金属部材2とを突き合わせる工程である。第一金属部材1及び第二金属部材2は、金属製の板状部材である。第一金属部材1及び第二金属部材2の材料は、摩擦攪拌可能な金属であれば特に制限されないが、例えば、アルミニウム、アルミニウム合金、銅、銅合金、チタン、チタン合金、マグネシウム、マグネシウム合金等から適宜選択すればよい。第一金属部材1及び第二金属部材2の板厚は同等になっている。第一金属部材1及び第二金属部材2の板厚は適宜設定すればよい。   A butt | matching process is a process of butt | matching the 1st metal member 1 and the 2nd metal member 2 as shown in FIG. The first metal member 1 and the second metal member 2 are metal plate-like members. The material of the first metal member 1 and the second metal member 2 is not particularly limited as long as it is a metal that can be frictionally stirred. For example, aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, etc. May be selected as appropriate. The plate | board thickness of the 1st metal member 1 and the 2nd metal member 2 is equivalent. The plate thicknesses of the first metal member 1 and the second metal member 2 may be set as appropriate.

突合せ工程では、第一金属部材1の一端側の端面1aと、第二金属部材2の一端側の端面2aとを突き合わせて突合せ部Jを形成しつつ、第一金属部材1及び第二金属部材2の一端側(互いに対向する側)をスペーサ−20の上に配置する。そして、本実施形態では、第一金属部材1及び第二金属部材2の他端側をそれぞれクランプK2で固定する。つまり、第一金属部材1の他端側に対して一端側(端面1a側)が高くなるとともに、第二金属部材2の他端側に対して一端側(端面2a側)が高くなるように、第一金属部材1及び第二金属部材2の両方を傾斜させる。これにより、突合せ部Jが高くなる状態で第一金属部材1及び第二金属部材2が固定される。第一金属部材1及び第二金属部材2が架台KAに固定されると、端面1a,2aの下端は当接した状態となるが、端面1a,2aの上端はわずかに離間した状態となる。本実施形態に係る「突合せ部」とは、端面1a,2aが突き合わされており、端面1a,2a間で形成される空間断面がV字状を呈する状態も含むものである。   In the butting step, the first metal member 1 and the second metal member are formed while butting the end surface 1a on the one end side of the first metal member 1 and the end surface 2a on the one end side of the second metal member 2 to form the butting portion J. One end side (opposite sides) of 2 is arranged on the spacer-20. And in this embodiment, the other end side of the 1st metal member 1 and the 2nd metal member 2 is each fixed with the clamp K2. That is, one end side (end surface 1a side) is higher than the other end side of the first metal member 1, and one end side (end surface 2a side) is higher than the other end side of the second metal member 2. Both the first metal member 1 and the second metal member 2 are inclined. Thereby, the 1st metal member 1 and the 2nd metal member 2 are fixed in the state where the butt | matching part J becomes high. When the first metal member 1 and the second metal member 2 are fixed to the gantry KA, the lower ends of the end surfaces 1a and 2a are in contact with each other, but the upper ends of the end surfaces 1a and 2a are slightly separated from each other. The “butting portion” according to the present embodiment includes a state in which the end surfaces 1a and 2a are butted and the space section formed between the end surfaces 1a and 2a has a V shape.

第一金属部材1と第二金属部材2の傾斜角度は、特に限定されないが、第一金属部材1及び第二金属部材2の材質、各部位の寸法、後記する接合工程の入熱量や接合後の熱収縮等を考慮して、接合後の熱収縮によって第一金属部材1と第二金属部材2とが平坦になるような傾斜角度を適宜設定すればよい。   The inclination angles of the first metal member 1 and the second metal member 2 are not particularly limited, but the materials of the first metal member 1 and the second metal member 2, the dimensions of each part, the amount of heat input in the joining process described later and after joining. In consideration of such heat shrinkage, an inclination angle may be set as appropriate so that the first metal member 1 and the second metal member 2 become flat due to heat shrinkage after joining.

配置工程は、第一金属部材1又は第二金属部材2(本実施形態では、第二金属部材2)に補助部材10を配置する工程である。補助部材10は金属製の板状部材である。補助部材10は摩擦攪拌可能な金属であれば特に制限されないが、本実施形態では第一金属部材1及び第二金属部材2と同じ材料になっている。補助部材10の板厚は、後記する接合工程後の塑性化領域Wが金属不足にならないように適宜設定する。本実施形態では、補助部材10の板厚は第一金属部材1及び第二金属部材2よりも薄く設定している。   An arrangement | positioning process is a process of arrange | positioning the auxiliary member 10 in the 1st metal member 1 or the 2nd metal member 2 (this embodiment 2nd metal member 2). The auxiliary member 10 is a metal plate member. The auxiliary member 10 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 10 is made of the same material as the first metal member 1 and the second metal member 2. The plate | board thickness of the auxiliary member 10 is suitably set so that the plasticization area | region W after the joining process mentioned later may not run out of metal shortage. In the present embodiment, the plate thickness of the auxiliary member 10 is set to be thinner than the first metal member 1 and the second metal member 2.

配置工程では、補助部材10の裏面10cと第二金属部材2の表面2bとを面接触させる。補助部材10は、第二金属部材2のみと面接触するように配置する。本実施形態では、補助部材10の端面10aと第二金属部材2の端面2aとが面一となるように配置する。なお、補助部材10は本実施形態では板状としているが、他の形状であってもよい。   In the arranging step, the back surface 10c of the auxiliary member 10 and the front surface 2b of the second metal member 2 are brought into surface contact. The auxiliary member 10 is disposed so as to be in surface contact with only the second metal member 2. In this embodiment, it arrange | positions so that the end surface 10a of the auxiliary member 10 and the end surface 2a of the 2nd metal member 2 may become flush | level. In addition, although the auxiliary member 10 is plate-shaped in this embodiment, another shape may be sufficient.

接合工程は、図2に示すように、回転ツールFを用いて第一金属部材1と第二金属部材2との突合せ部Jを摩擦攪拌によって接合する工程である。回転ツールFは、連結部F1と、攪拌ピンF2とで構成されている。回転ツールFは、例えば工具鋼で形成されている。連結部F1は、摩擦攪拌装置の回転軸(図示省略)に連結される部位である。連結部F1は円柱状を呈している。   As shown in FIG. 2, the joining step is a step of joining the butted portion J of the first metal member 1 and the second metal member 2 by friction stirring using the rotary tool F. The rotary tool F includes a connecting portion F1 and a stirring pin F2. The rotary tool F is made of, for example, tool steel. The connecting part F1 is a part connected to a rotating shaft (not shown) of the friction stirrer. The connecting portion F1 has a cylindrical shape.

攪拌ピンF2は、連結部F1から垂下しており、連結部F1と同軸になっている。攪拌ピンF2は連結部F1から離間するにつれて先細りになっている。攪拌ピンF2の外周面には螺旋溝が刻設されている。本実施形態では、回転ツールFを左回転させるため、螺旋溝は、基端から先端に向かうにつれて右回りに形成されている。言い換えると、螺旋溝は、螺旋溝を基端から先端に向けてなぞると上から見て右回りに形成されている。   The stirring pin F2 hangs down from the connecting portion F1 and is coaxial with the connecting portion F1. The stirring pin F2 is tapered as it is separated from the connecting portion F1. A spiral groove is formed on the outer peripheral surface of the stirring pin F2. In this embodiment, in order to rotate the rotation tool F counterclockwise, the spiral groove is formed clockwise as it goes from the proximal end to the distal end. In other words, when the spiral groove is traced from the proximal end to the distal end, the spiral groove is formed clockwise when viewed from above.

なお、回転ツールFを右回転させる場合は、螺旋溝を基端から先端に向かうにつれて左回りに形成することが好ましい。言い換えると、この場合の螺旋溝は、螺旋溝を基端から先端に向けてなぞると上から見て左回りに形成されている。螺旋溝をこのように設定することで、摩擦攪拌の際に塑性流動化した金属が螺旋溝によって攪拌ピンF2の先端側に導かれる。これにより、被接合金属部材(第一金属部材1、第二金属部材2及び補助部材10)の外部に溢れ出る金属の量を少なくすることができる。螺旋溝は省略してもよい。   In addition, when rotating the rotation tool F clockwise, it is preferable to form the spiral groove counterclockwise as it goes from the base end to the tip end. In other words, the spiral groove in this case is formed counterclockwise as viewed from above when the spiral groove is traced from the base end to the tip end. By setting the spiral groove in this way, the metal plastically fluidized during friction stirring is guided to the tip side of the stirring pin F2 by the spiral groove. Thereby, the quantity of the metal which overflows outside the to-be-joined metal member (the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 10) can be decreased. The spiral groove may be omitted.

回転ツールFは、マシニングセンタ等の摩擦攪拌装置に取り付けてもよいが、例えば、先端にスピンドルユニット等の回転手段を備えたアームロボットに取り付けてもよい。アームロボットに回転ツールFを取り付けることにより回転ツールFの回転中心軸を容易に変更することができる。   The rotary tool F may be attached to a friction stirrer such as a machining center, but may be attached to, for example, an arm robot having a rotation unit such as a spindle unit at the tip. By attaching the rotary tool F to the arm robot, the rotation center axis of the rotary tool F can be easily changed.

接合工程では、突合せ部Jに左回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、第一金属部材1、第二金属部材2及び補助部材10と攪拌ピンF2とを接触させた状態で突合せ部Jに沿って回転ツールFを相対移動させる。本実施形態では、回転ツールFの進行方向左側に補助部材10が位置するように回転ツールFの進行方向を設定する。回転ツールFの回転方向及び進行方向は前記したものに限定されるものではなく適宜設定すればよい。例えば、回転ツールFの進行方向左側に補助部材10を配置しつつ、回転ツールFを右回転させてもよい。もしくは、回転ツールFの進行方向右側に補助部材10を配置しつつ、回転ツールFを左右いずれかに回転させてもよい。回転ツールFの回転方向等の条件と補助部材10の好ましい位置関係については後記する。   In the joining step, only the agitating pin F2 rotated counterclockwise is inserted into the butting portion J, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated from each other. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. Then, the rotary tool F is relatively moved along the abutting portion J in a state where the first metal member 1, the second metal member 2, the auxiliary member 10, and the stirring pin F2 are in contact with each other. In the present embodiment, the traveling direction of the rotating tool F is set so that the auxiliary member 10 is positioned on the left side in the traveling direction of the rotating tool F. The rotation direction and the traveling direction of the rotary tool F are not limited to those described above, and may be set as appropriate. For example, the rotating tool F may be rotated to the right while the auxiliary member 10 is disposed on the left side in the traveling direction of the rotating tool F. Alternatively, the rotary tool F may be rotated to the left or right while the auxiliary member 10 is disposed on the right side in the traveling direction of the rotary tool F. The conditions such as the rotation direction of the rotary tool F and the preferred positional relationship of the auxiliary member 10 will be described later.

攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部Jとを接触させつつ、第一金属部材1及び第二金属部材2の板厚等に応じて適宜設定すればよい。これにより突合せ部Jが摩擦攪拌接合される。回転ツールFの移動軌跡には塑性化領域Wが形成される。摩擦攪拌工程後は、図2に示すように、補助部材10の端部にバリVが形成される。   What is necessary is just to set the insertion depth of the stirring pin F2 suitably according to the plate | board thickness of the 1st metal member 1 and the 2nd metal member 2, etc., making the stirring pin F2 and the butt | matching part J contact. As a result, the butt J is friction stir welded. A plasticized region W is formed in the movement trajectory of the rotary tool F. After the friction stirring step, burrs V are formed at the end of the auxiliary member 10 as shown in FIG.

本実施形態に係る接合工程では、進行方向左側に補助部材10を配置するとともに回転ツールFを左回転させるため、補助部材10側がRe側(Retreating side)となる。Re側とは、回転ツールFの外周における接線速度の大きさから送り速度の大きさが減算される側である。一方、Re側の反対側がAd側(Advancing side)となる。Ad側とは、回転ツールFの外周における接線速度の大きさに送り速度の大きさが加算される側である。   In the joining process according to the present embodiment, the auxiliary member 10 is disposed on the left side in the traveling direction and the rotating tool F is rotated counterclockwise, so the auxiliary member 10 side is the Re side (Retreating side). The Re side is the side on which the magnitude of the feed speed is subtracted from the magnitude of the tangential speed on the outer periphery of the rotary tool F. On the other hand, the side opposite to the Re side is the Ad side (Advancing side). The Ad side is a side in which the magnitude of the feed speed is added to the magnitude of the tangential speed on the outer periphery of the rotary tool F.

例えば、回転ツールFの回転速度が遅い場合では、塑性化領域WのRe側に比べてAd側の方が塑性流動材の温度が上昇しやすくなるため、Ad側にバリVが多く発生する傾向にある。一方、例えば、回転ツールFの回転速度が速い場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが発生する傾向にある。   For example, when the rotational speed of the rotary tool F is low, the temperature of the plastic fluidized material is likely to increase on the Ad side as compared to the Re side of the plasticizing region W, so that a large number of burrs V tend to occur on the Ad side. It is in. On the other hand, for example, when the rotational speed of the rotary tool F is high, the temperature of the plastic fluidized material increases on the Ad side, but the burr V tends to be generated on the Re side due to the higher rotational speed.

本実施形態では、回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材10側にバリVが発生する。つまり、本実施形態ではバリVが補助部材10側に多く形成されるように回転ツールFの回転速度、回転方向及び進行方向等を設定している。   In the present embodiment, since the rotational speed of the rotary tool F is set to be high, a burr V is generated on the Re side, that is, on the auxiliary member 10 side. That is, in this embodiment, the rotational speed, rotational direction, traveling direction, and the like of the rotary tool F are set so that many burrs V are formed on the auxiliary member 10 side.

接合工程が終了したら、クランプK2を解除して接合された第一金属部材1及び第二金属部材2を放置する。すると、摩擦攪拌接合後の熱収縮が発生することにより、接合後の第一金属部材1及び第二金属部材2が平坦になる。   When the joining process is completed, the clamp K2 is released and the joined first metal member 1 and second metal member 2 are allowed to stand. Then, heat shrinkage after the friction stir welding occurs, so that the first metal member 1 and the second metal member 2 after the joining become flat.

除去工程は、図3に示すように、補助部材10を第二金属部材2から除去する工程である。除去工程では、例えば手作業により、補助部材10を第二金属部材2から離間する方向に折り曲げて第二金属部材2から除去する。これにより、図4に示すように第一金属部材1と第二金属部材2とが平面状に接合された状態となる。   The removal step is a step of removing the auxiliary member 10 from the second metal member 2 as shown in FIG. In the removing step, the auxiliary member 10 is bent away from the second metal member 2 and removed from the second metal member 2 by, for example, manual work. Thereby, as shown in FIG. 4, the 1st metal member 1 and the 2nd metal member 2 will be in the state joined by planar shape.

以上説明した本実施形態に係る接合方法によれば、第一金属部材1と第二金属部材2とが接合されるとともに、第一金属部材1及び第二金属部材2に加え、補助部材10も同時に摩擦攪拌接合することにより、接合部(塑性化領域W)の金属不足を防ぐことができる。また、本実施形態によれば、第一金属部材1及び第二金属部材2の両方ではなく、片側のみに補助部材10を配置するだけで金属不足を防ぐことができる。   According to the joining method according to the present embodiment described above, the first metal member 1 and the second metal member 2 are joined, and in addition to the first metal member 1 and the second metal member 2, the auxiliary member 10 is also used. By performing friction stir welding at the same time, it is possible to prevent metal shortage at the joint (plasticized region W). Moreover, according to this embodiment, metal shortage can be prevented only by arrange | positioning the auxiliary member 10 only to one side instead of both the 1st metal member 1 and the 2nd metal member 2. FIG.

また、本実施形態に係る接合方法によれば、摩擦攪拌工程によって補助部材10にバリVが形成されるが、除去工程において補助部材10ごと取り除くことができる。これにより、バリを除去する作業を容易に行うことができる。補助部材10は除去装置等を用いて取り除いてもよいが、本実施形態では手作業で容易に補助部材10を取り除くことができる。   Moreover, according to the joining method which concerns on this embodiment, although the burr | flash V is formed in the auxiliary member 10 by a friction stirring process, it can remove with the auxiliary member 10 in a removal process. Thereby, the operation | work which removes a burr | flash can be performed easily. The auxiliary member 10 may be removed using a removing device or the like, but in the present embodiment, the auxiliary member 10 can be easily removed manually.

ここで、本実施形態に係る接合方法では、補助部材10を第一金属部材1及び第二金属部材2よりも薄く設定しているため、従来のようにショルダ部を金属部材に押し込みながら摩擦攪拌を行うと、ショルダ部と補助部材10との接触により補助部材10が外部に飛ばされてしまい接合部の金属不足を補うことができない。しかし、本実施形態では、回転ツールFの攪拌ピンF2のみを第一金属部材1、第二金属部材2及び補助部材10に接触させつつ摩擦攪拌を行うため、補助部材10が外部に飛ばされることなく接合部の金属不足を補うことができる。また、ショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。   Here, in the joining method according to the present embodiment, the auxiliary member 10 is set to be thinner than the first metal member 1 and the second metal member 2, so that friction stir while pushing the shoulder portion into the metal member as in the past. When the shoulder portion and the auxiliary member 10 are contacted, the auxiliary member 10 is blown to the outside and the metal shortage at the joint portion cannot be compensated. However, in this embodiment, since friction stirring is performed while only the stirring pin F2 of the rotary tool F is in contact with the first metal member 1, the second metal member 2, and the auxiliary member 10, the auxiliary member 10 is skipped to the outside. It is possible to compensate for the lack of metal at the joint. Moreover, the load which acts on a friction stirrer can be reduced compared with the case where a shoulder part is made to contact.

さらに、本実施形態に係る接合方法によれば、摩擦攪拌接合を行う前に第一金属部材1及び第二金属部材2を予め傾斜させておき、摩擦攪拌接合後の熱収縮を利用することで、接合された第一金属部材1及び第二金属部材2を容易に平坦にすることができる。要するに、熱収縮による第一金属部材1及び第二金属部材2の変形は避けられないため、第一金属部材1及び第二金属部材2を予め傾斜させている。   Furthermore, according to the joining method which concerns on this embodiment, before performing friction stir welding, the 1st metal member 1 and the 2nd metal member 2 are made to incline beforehand, and the thermal contraction after friction stir welding is utilized. The joined first metal member 1 and second metal member 2 can be easily flattened. In short, since the deformation of the first metal member 1 and the second metal member 2 due to thermal contraction is inevitable, the first metal member 1 and the second metal member 2 are inclined in advance.

また、架台KAと第一金属部材1及び第二金属部材2との間にスペーサ−20を配置することにより、第一金属部材1及び第二金属部材2を傾斜させつつ第一金属部材1及び第二金属部材2同士を突き合わせる作業を容易に行うことができる。また、スペーサ−20の高さを変更するだけで、第一金属部材1及び第二金属部材2の傾斜角度を容易に変更することができる。   Further, by disposing the spacer -20 between the gantry KA and the first metal member 1 and the second metal member 2, the first metal member 1 and the first metal member 1 and the second metal member 2 are inclined. The operation of abutting the second metal members 2 can be easily performed. Moreover, the inclination angle of the 1st metal member 1 and the 2nd metal member 2 can be easily changed only by changing the height of the spacer-20.

なお、第一実施形態では、例えば、突合せ部Jに形成された隙間に肉盛溶接を行った後に接合工程を行ってもよい。また、突合せ部Jに対して回転ツールFよりも小型の仮回転ツールを用いて摩擦攪拌を行うか、若しくは溶接によって仮接合を行ってもよい。これにより、接合工程の際の突合せ部Jの目開きを確実に防ぐことができる。   In the first embodiment, for example, the joining step may be performed after overlay welding is performed on the gap formed in the butt portion J. Further, friction stir may be performed on the butting portion J using a temporary rotating tool that is smaller than the rotating tool F, or temporary joining may be performed by welding. Thereby, the opening of the butt | matching part J in the case of a joining process can be prevented reliably.

また、本実施形態ではスペーサ−20を用いて第一金属部材1及び第二金属部材2を傾斜させたが、突合せ部Jが高くなるように第一金属部材1及び第二金属部材2を傾斜させることが可能であれば、スペーサ−20を省略してもよい。たとえば、図5に示すように、第一金属部材1の一端側の端面1aと、第二金属部材2の一端側の端面2aとを突き合わせて突合せ部Jを形成しつつ、第一金属部材1及び第二金属部材2の一端側(互いに対向する側)をテーブルK1上に形成された凸部K3の上に配置してもよい。凸部K3 は、突合せ部Jに沿った突条であってもよいし、所定間隔で配置される複数の山部であってもよい。第一金属部材1及び第二金属部材2の他端側は、それぞれクランプK2で固定する。   In the present embodiment, the first metal member 1 and the second metal member 2 are inclined using the spacer-20, but the first metal member 1 and the second metal member 2 are inclined so that the butt portion J becomes higher. If possible, the spacer-20 may be omitted. For example, as shown in FIG. 5, the first metal member 1 is formed while the end surface 1 a on the one end side of the first metal member 1 and the end surface 2 a on the one end side of the second metal member 2 are abutted to form a butted portion J. And the one end side (the mutually opposing side) of the 2nd metal member 2 may be arrange | positioned on the convex part K3 formed on the table K1. The convex portion K3 may be a ridge along the butt portion J, or may be a plurality of mountain portions arranged at a predetermined interval. The other end sides of the first metal member 1 and the second metal member 2 are each fixed by a clamp K2.

また、図6に示すように、テーブルK1上に設けられた傾斜載置部K4上に第一金属部材1及び第二金属部材2を載置してもよい。傾斜載置部K4は、断面山型を呈し、傾斜面K4a,K4aを備えている。そして、第一金属部材1の裏面1c及び第二金属部材2の裏面2cを傾斜面K4a,K4aにそれぞれ面接触させつつ、頂点K4bに突合せ部Jが位置するように配置し、図示しないクランプで固定する。   Moreover, as shown in FIG. 6, you may mount the 1st metal member 1 and the 2nd metal member 2 on the inclination mounting part K4 provided on the table K1. The inclined mounting portion K4 has a mountain shape in cross section and includes inclined surfaces K4a and K4a. Then, the back surface 1c of the first metal member 1 and the back surface 2c of the second metal member 2 are in surface contact with the inclined surfaces K4a and K4a, respectively, so that the butt portion J is positioned at the vertex K4b, and a clamp (not shown) is used. Fix it.

図5および図6の変形例の突合せ工程では、補助部材10は、第二金属部材2の表面2bに面接触するとともに、補助部材10の端部10bが突合せ部Jを挟んで他方の金属部材(第一金属部材1)側に突出するように配置する。つまり、補助部材10は、一つであって、第二金属部材2の表面2b上に載置されており、補助部材10の第一金属部材2側の端部10bが突合せ部Jの上側を覆っている。補助部材10の端部10bは、第一金属部材1の表面からわずかに離間した状態となる。なお、補助部材10は平板状に限定されるものではなく、端部10bを第一金属部材2に面接触するように折り曲げてもよい。このようにすれば、補助部材が第一金属部材1及び第二金属部材2の両方に接触するので、安定して載置でき、摩擦攪拌接合を行い易くなる。   5 and 6, the auxiliary member 10 is in surface contact with the surface 2 b of the second metal member 2, and the end 10 b of the auxiliary member 10 sandwiches the butting portion J and the other metal member. It arrange | positions so that it may protrude to the (1st metal member 1) side. That is, the auxiliary member 10 is one and is placed on the surface 2b of the second metal member 2, and the end portion 10b of the auxiliary member 10 on the first metal member 2 side is located above the abutting portion J. Covering. The end 10 b of the auxiliary member 10 is in a state slightly separated from the surface of the first metal member 1. The auxiliary member 10 is not limited to a flat plate shape, and the end portion 10b may be bent so as to make surface contact with the first metal member 2. If it does in this way, since an auxiliary member contacts both the 1st metal member 1 and the 2nd metal member 2, it can be mounted stably and it will become easy to perform friction stir welding.

摩擦攪拌工程では、回転する回転ツール(図示せず)の攪拌ピンを、補助部材10の表面側から突合せ部Jに挿入し、回転ツールを突合せ部Jに沿って移動させる。補助部材10が載置された金属部材(第二金属部材2)側の補助部材10に摩擦攪拌接合で発生するバリが形成されるように接合条件を設定する。なお、補助部材10の端部10bは、第一金属部材1と一緒に塑性流動化される。   In the friction stirring step, a stirring pin of a rotating rotary tool (not shown) is inserted into the butting portion J from the surface side of the auxiliary member 10 and the rotating tool is moved along the butting portion J. Joining conditions are set so that burrs generated by friction stir welding are formed on the auxiliary member 10 on the metal member (second metal member 2) side on which the auxiliary member 10 is placed. Note that the end portion 10 b of the auxiliary member 10 is plastically fluidized together with the first metal member 1.

[第二実施形態]
本発明の第二実施形態に係る接合方法について説明する。まずは、本実施形態で用いる可動式架台について説明する。 図7に示すように、第二実施形態に係る接合方法では、可動式架台Mを用いる。可動式架台Mは、分割架台M1と分割架台M2とを横方向に並設して構成されている。可動式架台Mは、第一金属部材1及び第二金属部材2を接合するための架台であって、分割架台M2に対して分割架台M1が昇降可能に形成されている。
[Second Embodiment]
The joining method according to the second embodiment of the present invention will be described. First, the movable gantry used in this embodiment will be described. As shown in FIG. 7, in the joining method according to the second embodiment, a movable mount M is used. The movable gantry M is configured by arranging a split gantry M1 and a split gantry M2 side by side in the horizontal direction. The movable frame M is a frame for joining the first metal member 1 and the second metal member 2, and the divided frame M <b> 1 is formed to be movable up and down with respect to the divided frame M <b> 2.

分割架台M1は、基板M1aと、クランプM1bとで構成されている。分割架台M1は、基板M1aの下部に設けられた昇降部(図示せず)によって上下に移動可能に形成されている。基板M1aは、金属製の部材であって、直方体を呈する。基板M1aは、伝熱性の高い金属で形成されていることが好ましい。クランプM1bは、第一金属部材1を基板M1aに固定する部材である。クランプM1bは、基板M1aの表面M1dに複数個設置されている。   The divided gantry M1 includes a substrate M1a and a clamp M1b. The divided frame M1 is formed to be movable up and down by an elevating part (not shown) provided at the lower part of the substrate M1a. The board | substrate M1a is a metal member, Comprising: A rectangular parallelepiped is exhibited. It is preferable that the board | substrate M1a is formed with the metal with high heat conductivity. The clamp M1b is a member that fixes the first metal member 1 to the substrate M1a. A plurality of clamps M1b are installed on the surface M1d of the substrate M1a.

基板M1aの内部には、冷却流路M1cが複数個形成されている。冷却流路M1cは、冷却媒体が流れる流路である。冷却流路M1cに冷却媒体が流れることで第一金属部材1及び第二金属部材2を冷却することができる。冷却流路M1cは、本実施形態では筒状の管で形成されている。冷却流路M1cは、表面M1dに近い部位において、表面M1dと平行に配設されている。冷却流路M1cの本数は特に制限されないが、本実施形態では3本設けている。   A plurality of cooling channels M1c are formed inside the substrate M1a. The cooling channel M1c is a channel through which a cooling medium flows. The first metal member 1 and the second metal member 2 can be cooled by the cooling medium flowing through the cooling flow path M1c. The cooling channel M1c is formed of a cylindrical tube in the present embodiment. The cooling channel M1c is disposed in parallel with the surface M1d at a portion close to the surface M1d. The number of cooling channels M1c is not particularly limited, but in the present embodiment, three are provided.

分割架台M2は、基板M2aと、クランプM2bとで構成されている。分割架台M2は、上下に移動しないように形成されている。基板M2aは、金属製の部材であって、直方体を呈する。基板M2aは、伝熱性の高い金属で形成されていることが好ましい。基板M2aの側面M2eは、基板M1aの側面M1eと面接触している。側面M1eと側面M2eとが面接触することで境界面Nが形成される。クランプM2bは、第二金属部材2を基板M2aに固定する部材である。クランプM2bは、基板M2aの表面M2dに複数個設置されている。   The divided gantry M2 includes a substrate M2a and a clamp M2b. The divided frame M2 is formed so as not to move up and down. The board | substrate M2a is a metal member, Comprising: A rectangular parallelepiped is exhibited. It is preferable that the board | substrate M2a is formed with the metal with high heat conductivity. The side surface M2e of the substrate M2a is in surface contact with the side surface M1e of the substrate M1a. The boundary surface N is formed by the surface contact between the side surface M1e and the side surface M2e. The clamp M2b is a member that fixes the second metal member 2 to the substrate M2a. A plurality of clamps M2b are provided on the surface M2d of the substrate M2a.

基板M2aの内部には、冷却流路M2cが複数個形成されている。冷却流路M2cは、冷却媒体が流れる流路である。冷却流路M2cに冷却媒体が流れることで第一金属部材1及び第二金属部材2を冷却することができる。冷却流路M2cは、本実施形態では筒状の管で形成されている。冷却流路M2cは、表面M2dに近い部位において、表面M2dと平行に配設されている。冷却流路M2cの本数は特に制限されないが、本実施形態では3本設けている。   A plurality of cooling channels M2c are formed inside the substrate M2a. The cooling channel M2c is a channel through which a cooling medium flows. The first metal member 1 and the second metal member 2 can be cooled by the cooling medium flowing through the cooling flow path M2c. In the present embodiment, the cooling channel M2c is formed of a cylindrical tube. The cooling flow path M2c is disposed in parallel with the surface M2d at a portion close to the surface M2d. The number of the cooling flow paths M2c is not particularly limited, but three in the present embodiment are provided.

なお、可動式架台Mは、本実施形態では分割架台M1を可動式とし、分割架台M2を固定式にしているが、分割架台M1及び分割架台M2のうち少なくとも一方が昇降可能に構成されていればよい。   In this embodiment, the movable frame M is configured such that the divided frame M1 is movable and the divided frame M2 is fixed. However, at least one of the divided frame M1 and the divided frame M2 can be moved up and down. That's fine.

次に、第二実施形態に係る接合方法について説明する。かかる接合方法では、突合せ工程と、配置工程と、接合工程と、除去工程と、を行う。第一金属部材1と第二金属部材2は、第一実施形態と同等の構成である。   Next, the joining method according to the second embodiment will be described. In this joining method, a butt process, an arrangement process, a joining process, and a removing process are performed. The 1st metal member 1 and the 2nd metal member 2 are the structures equivalent to 1st embodiment.

突合せ工程は、第一金属部材1と第二金属部材2とを突き合わせるとともに一方の金属部材(本実施形態では第二金属部材2)を傾斜させる工程である。突合せ工程では、まず、分割架台M1を移動させて、分割架台M1の表面M1dと分割架台M2の表面M2dを面一にする。これにより、表面M1dと表面M2dが面一な平坦架台が形成される。   A butt | matching process is a process of making one metal member (2nd metal member 2 in this embodiment) incline while butt | matching the 1st metal member 1 and the 2nd metal member 2. FIG. In the butting step, first, the divided frame M1 is moved so that the surface M1d of the divided frame M1 and the surface M2d of the divided frame M2 are flush with each other. As a result, a flat gantry in which the surface M1d and the surface M2d are flush with each other is formed.

次に、表面M1d及び表面M2dの上に第一金属部材1と第二金属部材2を載置するとともに第一金属部材1の端面1aと第二金属部材2の端面2aを突き合わせて突合せ部Jを形成する。このとき、突合せ部Jが、分割架台M1の上に位置するように設定する。言い換えると、突合せ部Jが、境界面Nよりも分割架台M1側に位置するように設定する。   Next, the first metal member 1 and the second metal member 2 are placed on the surface M1d and the surface M2d, and the end surface 1a of the first metal member 1 and the end surface 2a of the second metal member 2 are abutted to meet each other. Form. At this time, it sets so that the butt | matching part J may be located on the division frame M1. In other words, the abutting portion J is set so as to be positioned closer to the divided frame M1 than the boundary surface N.

次に、図8に示すように、分割架台M2に対して分割架台M1を上昇させる。これにより、表面M2dに対して表面M1dの位置が高くなり、可動式架台Mの表面に段差が形成される。特許請求の範囲の「載置部」は、本実施形態では高さ位置が異なる表面M1d,M2dによって段差が形成された分割架台M1,M2で構成されている。   Next, as shown in FIG. 8, the divided frame M1 is raised with respect to the divided frame M2. Thereby, the position of the surface M1d becomes higher than the surface M2d, and a step is formed on the surface of the movable mount M. In the present embodiment, the “mounting portion” in the claims is composed of divided bases M1 and M2 in which steps are formed by the surfaces M1d and M2d having different height positions.

分割架台M1を上昇させることで、第一金属部材1は、他端側に対して一端側(端面1a側)が高くなるように傾斜する。つまり、第一金属部材1の他端側は表面M2dに当接し、一端側は分割架台M1によって上方に持ち上げられて傾斜する。第二金属部材2は、分割架台M1の表面M1dにおいて略水平に載置された状態となる。そして、クランプM1b,M2bで第一金属部材1及び第二金属部材2をそれぞれ移動不能に拘束する。   By raising the divided frame M1, the first metal member 1 is inclined such that one end side (the end face 1a side) is higher than the other end side. That is, the other end side of the first metal member 1 is in contact with the surface M2d, and one end side is lifted upward by the divided frame M1 and tilted. The second metal member 2 is placed substantially horizontally on the surface M1d of the divided frame M1. And the 1st metal member 1 and the 2nd metal member 2 are restrained immovably by clamp M1b and M2b, respectively.

第一金属部材1及び第二金属部材2が可動式架台Mに固定されると、端面1a,2aの下端は当接した状態となるが、端面1a,2aの上端はわずかに離間した状態となる。本実施形態に係る「突合せ部」とは、端面1a,2aが突き合わされており、端面1a,2a間で形成される空間断面がV字状を呈する状態も含むものである。   When the first metal member 1 and the second metal member 2 are fixed to the movable mount M, the lower ends of the end surfaces 1a and 2a are in contact with each other, but the upper ends of the end surfaces 1a and 2a are slightly separated from each other. Become. The “butting portion” according to the present embodiment includes a state in which the end surfaces 1a and 2a are butted and the space section formed between the end surfaces 1a and 2a has a V shape.

第二金属部材2の傾斜角度は、第一金属部材1及び第二金属部材2の材質、各部位の寸法、後記する本接合工程の入熱量や接合後の熱収縮等を考慮して、接合工程後の熱収縮によって第一金属部材1と第二金属部材2とが平坦になるような傾斜角度を適宜設定すればよい。   The inclination angle of the second metal member 2 is determined by considering the material of the first metal member 1 and the second metal member 2, the dimensions of each part, the heat input amount of the main joining process described later, the heat shrinkage after joining, and the like. What is necessary is just to set suitably the inclination angle that the 1st metal member 1 and the 2nd metal member 2 become flat by the heat shrink after a process.

配置工程は、第一金属部材1及び第二金属部材2に補助部材10をそれぞれ配置する工程である。補助部材10は第一実施形態と同様の構成である。配置工程では、一方の補助部材10の裏面10cと第一金属部材1の表面1bとを面接触させるとともに、他方の補助部材10の裏面10cと第二金属部材2の表面2bとを面接触させる。本実施形態では、一方の補助部材10の端面10aと第一金属部材1の端面1aとが面一となるとともに、他方の補助部材10の端面10aと第二金属部材2の端面2aとが面一となるように配置する。なお、補助部材10は本実施形態では板状としているが、他の形状であってもよい。   An arrangement | positioning process is a process of arrange | positioning the auxiliary member 10 to the 1st metal member 1 and the 2nd metal member 2, respectively. The auxiliary member 10 has the same configuration as in the first embodiment. In the arranging step, the back surface 10c of one auxiliary member 10 and the surface 1b of the first metal member 1 are brought into surface contact, and the back surface 10c of the other auxiliary member 10 and the surface 2b of the second metal member 2 are brought into surface contact. . In the present embodiment, the end surface 10a of one auxiliary member 10 and the end surface 1a of the first metal member 1 are flush with each other, and the end surface 10a of the other auxiliary member 10 and the end surface 2a of the second metal member 2 are surfaces. Arrange them to be one. In addition, although the auxiliary member 10 is plate-shaped in this embodiment, another shape may be sufficient.

接合工程は、突合せ部Jに対して補助部材10側から摩擦攪拌接合を行う工程である。図9に示すように、用いる回転ツールFは、第一実施形態と同様に連結部F1と、攪拌ピンF2とで構成されている。本実施形態では、回転ツールFを右回転させるため、螺旋溝は、基端から先端に向かうにつれて左回りに形成されている。言い換えると、螺旋溝は、螺旋溝を基端から先端に向けてなぞると上から見て左回りに形成されている。   A joining process is a process of performing friction stir welding with respect to the butt | matching part J from the auxiliary member 10 side. As shown in FIG. 9, the rotary tool F to be used is composed of a connecting portion F1 and a stirring pin F2, as in the first embodiment. In the present embodiment, in order to rotate the rotary tool F to the right, the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end. In other words, the spiral groove is formed counterclockwise as viewed from above when the spiral groove is traced from the proximal end to the distal end.

接合工程では、突合せ部Jに右回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、第一金属部材1、第二金属部材2及び補助部材10,10と攪拌ピンF2とを接触させた状態で突合せ部Jに沿って回転ツールFを相対移動させる。本実施形態では、図9の紙面裏側に向かって回転ツールFが移動するように回転ツールFの進行方向を設定する。回転ツールFの回転方向及び進行方向は前記したものに限定されるものではなく適宜設定すればよい。   In the joining step, only the agitating pin F2 rotated to the right is inserted into the abutting portion J, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. Then, the rotary tool F is relatively moved along the abutting portion J in a state where the first metal member 1, the second metal member 2 and the auxiliary members 10 and 10 are in contact with the stirring pin F <b> 2. In the present embodiment, the traveling direction of the rotary tool F is set so that the rotary tool F moves toward the back side of the sheet of FIG. The rotation direction and the traveling direction of the rotary tool F are not limited to those described above, and may be set as appropriate.

攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部Jとを接触させつつ、第一金属部材1及び第二金属部材2の板厚等に応じて適宜設定すればよい。これにより突合せ部Jが摩擦攪拌接合される。回転ツールFの移動軌跡には塑性化領域Wが形成される。摩擦攪拌工程後は、図10に示すように、補助部材10の端部にバリVが形成される。   What is necessary is just to set the insertion depth of the stirring pin F2 suitably according to the plate | board thickness of the 1st metal member 1 and the 2nd metal member 2, etc., making the stirring pin F2 and the butt | matching part J contact. As a result, the butt J is friction stir welded. A plasticized region W is formed in the movement trajectory of the rotary tool F. After the friction stirring step, burrs V are formed at the end of the auxiliary member 10 as shown in FIG.

本実施形態に係る接合工程では、回転ツールFを右回転させるため、回転ツールFの進行方向の右側である第一金属部材1側がRe側(Retreating side)となる。Re側とは、回転ツールFの外周における接線速度の大きさから送り速度の大きさが減算される側である。一方、Re側の反対側がAd側(Advancing side)となる。Ad側とは、回転ツールFの外周における接線速度の大きさに送り速度の大きさが加算される側である。   In the joining process according to the present embodiment, since the rotary tool F is rotated to the right, the first metal member 1 side that is the right side in the traveling direction of the rotary tool F becomes the Re side (Retreating side). The Re side is the side on which the magnitude of the feed speed is subtracted from the magnitude of the tangential speed on the outer periphery of the rotary tool F. On the other hand, the side opposite to the Re side is the Ad side (Advancing side). The Ad side is a side in which the magnitude of the feed speed is added to the magnitude of the tangential speed on the outer periphery of the rotary tool F.

本実施形態では、回転ツールFの回転速度を速く設定しているため、Re側即ち第一金属部材1側に多くのバリVが発生する。つまり、本実施形態ではバリVが第一金属部材1側に多く形成されるように回転ツールFの回転速度、回転方向及び進行方向等を設定している。なお、本実施形態では、第一金属部材1側に多くのバリVが発生するようにしているが、第二金属部材2側にも補助部材10が設けられているので、第一金属部材1及び第二金属部材2のいずれの側に多くもバリVが発生するようにしてもよいし、第一金属部材1及び第二金属部材2の両側に均等にバリVが発生するようにしてもよい。   In the present embodiment, since the rotational speed of the rotary tool F is set high, many burrs V are generated on the Re side, that is, the first metal member 1 side. That is, in this embodiment, the rotational speed, rotational direction, traveling direction, and the like of the rotary tool F are set so that many burrs V are formed on the first metal member 1 side. In the present embodiment, many burrs V are generated on the first metal member 1 side. However, since the auxiliary member 10 is also provided on the second metal member 2 side, the first metal member 1 is provided. The burr V may be generated on either side of the second metal member 2 and the burr V may be generated evenly on both sides of the first metal member 1 and the second metal member 2. Good.

除去工程は、図10に示すように、補助部材10を第二金属部材2から除去する工程である。除去工程では、例えば手作業により、一方の補助部材10を第一金属部材1から離間する方向に折り曲げて第一金属部材1から除去するとともに、他方の補助部材10を第二金属部材2から離間する方向に折り曲げて第二金属部材2から除去する。   The removal step is a step of removing the auxiliary member 10 from the second metal member 2 as shown in FIG. In the removal step, for example, one auxiliary member 10 is bent away from the first metal member 1 by manual work and removed from the first metal member 1, and the other auxiliary member 10 is separated from the second metal member 2. It is bent from the second metal member 2 by bending in the direction to be.

除去工程が終了したら、クランプM1b,M2bを解除して接合された第一金属部材1及び第二金属部材2を放置する。すると、摩擦攪拌接合後の熱収縮が発生することにより、接合後の第一金属部材1と第二金属部材2が平坦になる。   When the removal step is completed, the clamps M1b and M2b are released, and the first metal member 1 and the second metal member 2 joined together are left unattended. Then, heat shrinkage after the friction stir welding occurs, so that the first metal member 1 and the second metal member 2 after the joining become flat.

なお、本実施形態では、除去工程が終了した後に、クランプM1b,M2bを解除して第一金属部材1と第二金属部材2を平坦にしているが、第一実施形態のように第一金属部材1と第二金属部材2を平坦にした後に、除去工程を行ってもよい。   In this embodiment, after the removal process is completed, the clamps M1b and M2b are released to flatten the first metal member 1 and the second metal member 2, but the first metal as in the first embodiment. After the member 1 and the second metal member 2 are flattened, the removing step may be performed.

以上説明した本実施形態に係る接合方法によれば、接合工程を行う際に、第一金属部材1と第二金属部材2を予め傾斜させて突き合わせておき、摩擦攪拌接合後の熱収縮を利用することで、第一金属部材1と第二金属部材2とを平坦にすることができる。   According to the joining method according to the present embodiment described above, when the joining process is performed, the first metal member 1 and the second metal member 2 are preliminarily inclined to face each other, and the heat shrinkage after the friction stir welding is used. By doing so, the 1st metal member 1 and the 2nd metal member 2 can be made flat.

また、本実施形態によれば、昇降可能な可動式架台Mを用いているため、第一金属部材1と第二金属部材2の傾斜角度を容易に調節することができる。また、可動式架台Mを段差架台とした状態で第一金属部材1と第二金属部材2を突き合わせてもよいが、本実施形態のように段差のない平坦架台とした状態から分割架台M1を上昇させることで第一金属部材1と第二金属部材2の傾斜角度の微調整が容易となる。   Moreover, according to this embodiment, since the movable mount frame M which can be moved up and down is used, the inclination angles of the first metal member 1 and the second metal member 2 can be easily adjusted. In addition, the first metal member 1 and the second metal member 2 may be abutted in a state where the movable mount M is a stepped mount, but the divided mount M1 is changed from a flat mount without a step as in the present embodiment. By making it raise, the fine adjustment of the inclination angle of the 1st metal member 1 and the 2nd metal member 2 becomes easy.

さらに、本実施形態に係る接合方法によれば、第一金属部材1と第二金属部材2とが接合されるとともに、第一金属部材1及び第二金属部材2に加え、補助部材10も同時に摩擦攪拌接合することにより、接合部(塑性化領域W)の金属不足を防ぐことができる。また、特に本実施形態によれば、第一金属部材1及び第二金属部材2の両方に補助部材10を配置しているので、バランスよく接合できるとともに金属を充分に補充できる。   Furthermore, according to the joining method which concerns on this embodiment, while the 1st metal member 1 and the 2nd metal member 2 are joined, in addition to the 1st metal member 1 and the 2nd metal member 2, the auxiliary member 10 is also simultaneous. By performing friction stir welding, it is possible to prevent metal shortage at the joint (plasticized region W). In particular, according to the present embodiment, since the auxiliary member 10 is disposed on both the first metal member 1 and the second metal member 2, it is possible to join in a well-balanced manner and sufficiently supplement the metal.

また、本実施形態に係る接合方法によれば、摩擦攪拌工程によって補助部材10にバリVが形成されるが、除去工程において補助部材10ごと取り除くことができる。これにより、バリを除去する作業を容易に行うことができる。補助部材10は除去装置等を用いて取り除いてもよいが、本実施形態では手作業で容易に補助部材10を取り除くことができる。   Moreover, according to the joining method which concerns on this embodiment, although the burr | flash V is formed in the auxiliary member 10 by a friction stirring process, it can remove with the auxiliary member 10 in a removal process. Thereby, the operation | work which removes a burr | flash can be performed easily. The auxiliary member 10 may be removed using a removing device or the like, but in the present embodiment, the auxiliary member 10 can be easily removed manually.

ここで、本実施形態に係る接合方法では、補助部材10を第一金属部材1及び第二金属部材2よりも薄く設定しているため、従来のようにショルダ部を金属部材に押し込みながら摩擦攪拌を行うと、ショルダ部と補助部材10との接触により補助部材10が外部に飛ばされてしまい接合部の金属不足を補うことができない。しかし、本実施形態では、回転ツールFの攪拌ピンF2のみを第一金属部材1、第二金属部材2及び補助部材10に接触させつつ摩擦攪拌を行うため、補助部材10が外部に飛ばされることなく接合部の金属不足を補うことができる。また、ショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。   Here, in the joining method according to the present embodiment, the auxiliary member 10 is set to be thinner than the first metal member 1 and the second metal member 2, so that friction stir while pushing the shoulder portion into the metal member as in the past. When the shoulder portion and the auxiliary member 10 are contacted, the auxiliary member 10 is blown to the outside and the metal shortage at the joint portion cannot be compensated. However, in this embodiment, since friction stirring is performed while only the stirring pin F2 of the rotary tool F is in contact with the first metal member 1, the second metal member 2, and the auxiliary member 10, the auxiliary member 10 is skipped to the outside. It is possible to compensate for the lack of metal at the joint. Moreover, the load which acts on a friction stirrer can be reduced compared with the case where a shoulder part is made to contact.

また、本実施形態では可動式架台Mを用いて第一金属部材1と第二金属部材2を傾斜させたが、可動式架台Mに限定されるものではない。たとえば、図12に示すように、平坦な架台KのテーブルK1上に段差プレート21を載置する。段差プレート21の裏面21bは、テーブルK1と面接触する。これにより、を第一金属部材1及び第二金属部材2を載置する載置部に段差が形成される。   In the present embodiment, the first metal member 1 and the second metal member 2 are inclined using the movable mount M, but the present invention is not limited to the movable mount M. For example, as shown in FIG. 12, the step plate 21 is placed on the table K1 of the flat base K. The back surface 21b of the step plate 21 is in surface contact with the table K1. Thereby, a level | step difference is formed in the mounting part in which the 1st metal member 1 and the 2nd metal member 2 are mounted.

そして、突合せ工程では、段差プレート21の上に突合せ部Jが位置するように第一金属部材1と第二金属部材2を突き合わせる。これにより、一方の金属部材(第二金属部材2)は、他端側に対して一端側(端面2a側)が高くなるように傾斜する。他方の金属部材(第一金属部材1)は、段差プレート21の表面21aにおいて略水平に載置された状態となる。そして、クランプK2,K2で第一金属部材1及び第二金属部材2をそれぞれ移動不能に拘束すればよい。このような変形例によれば、架台Kの構成を簡単なものにできる。また、図示はしないが、元々段差が形成された架台を用いてもよい。   In the butting step, the first metal member 1 and the second metal member 2 are butted so that the butting portion J is positioned on the step plate 21. Thereby, one metal member (2nd metal member 2) inclines so that one end side (end surface 2a side) may become high with respect to the other end side. The other metal member (first metal member 1) is placed on the surface 21a of the step plate 21 substantially horizontally. And what is necessary is just to restrain the 1st metal member 1 and the 2nd metal member 2 so that a movement is respectively impossible with clamp K2, K2. According to such a modification, the configuration of the gantry K can be simplified. In addition, although not shown, a gantry with a step originally formed may be used.

以上本発明の実施形態について説明したが、本発明の趣旨に反しない範囲において適宜設計変更が可能である。例えば、本実施形態では除去工程を行ったが、補助部材10を除去せずに、第一金属部材1又は第二金属部材2にそのまま存置してもよい。   Although the embodiments of the present invention have been described above, design changes can be made as appropriate without departing from the spirit of the present invention. For example, although the removal step is performed in the present embodiment, the auxiliary member 10 may be left as it is in the first metal member 1 or the second metal member 2 without being removed.

また、第一実施形態では、第一金属部材1と第二金属部材2の両方を傾斜させて、第一金属部材1と第二金属部材2の片方に補助部材10を設けたが、これに限定されるものではない。第一金属部材と第二金属部材の両方を傾斜させて、第一金属部材と第二金属部材の両方に補助部材を設けてもよい。さらに、第二実施形態では、第一金属部材1と第二金属部材2の片方を傾斜させて、第一金属部材1と第二金属部材2の両方に補助部材10を設けたが、これに限定されるものではない。第一金属部材と第二金属部材の片方を傾斜させて、第一金属部材と第二金属部材の片方に補助部材を設けてもよい。この場合、補助部材は、傾斜した金属部材上に設けてもよいし、水平な金属部材上に設けてもよい。   In the first embodiment, both the first metal member 1 and the second metal member 2 are inclined and the auxiliary member 10 is provided on one of the first metal member 1 and the second metal member 2. It is not limited. An auxiliary member may be provided on both the first metal member and the second metal member by inclining both the first metal member and the second metal member. Further, in the second embodiment, one of the first metal member 1 and the second metal member 2 is inclined and the auxiliary member 10 is provided on both the first metal member 1 and the second metal member 2. It is not limited. An auxiliary member may be provided on one of the first metal member and the second metal member by tilting one of the first metal member and the second metal member. In this case, the auxiliary member may be provided on an inclined metal member or may be provided on a horizontal metal member.

1 第一金属部材
2 第二金属部材
10 補助部材
F 回転ツール
F1 連結部
F2 攪拌ピン
J 突合せ部
V バリ
W 塑性化領域
DESCRIPTION OF SYMBOLS 1 1st metal member 2 2nd metal member 10 Auxiliary member F Rotating tool F1 Connection part F2 Stirring pin J Butt part V Burr W Plasticization area

Claims (14)

攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、
前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材及び前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材を傾斜させた状態で突合せ部を形成する突合せ工程と、
前記第一金属部材又は前記第二金属部材に面接触するように補助部材を配置する配置工程と、
回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法。
A joining method for joining the first metal member and the second metal member using a rotary tool equipped with a stirring pin,
The end surface on the one end side of the first metal member and the end surface on the one end side of the second metal member are abutted, and the one end side is higher than the other end sides of the first metal member and the second metal member. A butting step of forming a butting portion in a state where the first metal member and the second metal member are inclined;
An arranging step of arranging an auxiliary member so as to be in surface contact with the first metal member or the second metal member;
The rotating stirring pin is inserted from the surface side of the auxiliary member, and only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member, and the rotation is performed along the abutting portion. A friction stirring step of joining the first metal member, the second metal member, and the auxiliary member by relatively moving a tool.
バリが形成された前記補助部材を前記第一金属部材又は前記第二金属部材から除去する除去工程を含むことを特徴とする請求項1に記載の接合方法。   The joining method according to claim 1, further comprising a removing step of removing the auxiliary member formed with burrs from the first metal member or the second metal member. 前記摩擦攪拌工程では、摩擦攪拌接合で発生するバリが前記補助部材に形成されるように接合条件を設定することを特徴とする請求項2に記載の接合方法。   The joining method according to claim 2, wherein in the friction stirring step, joining conditions are set such that burrs generated in the friction stir welding are formed on the auxiliary member. 攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、
前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材及び前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材を傾斜させた状態で突合せ部を形成する突合せ工程と、
前記第一金属部材及び前記第二金属部材上に補助部材を配置する配置工程と、
回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法。
A joining method for joining the first metal member and the second metal member using a rotary tool equipped with a stirring pin,
The end surface on the one end side of the first metal member and the end surface on the one end side of the second metal member are abutted, and the one end side is higher than the other end sides of the first metal member and the second metal member. A butting step of forming a butting portion in a state where the first metal member and the second metal member are inclined;
An arranging step of arranging an auxiliary member on the first metal member and the second metal member;
The rotating stirring pin is inserted from the surface side of the auxiliary member, and only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member, and the rotation is performed along the abutting portion. A friction stirring step of joining the first metal member, the second metal member, and the auxiliary member by relatively moving a tool.
バリが形成された前記補助部材を前記第一金属部材及び前記第二金属部材から除去する除去工程を含むことを特徴とする請求項4に記載の接合方法。   The joining method according to claim 4, further comprising a removing step of removing the auxiliary member formed with burrs from the first metal member and the second metal member. 前記配置工程では、前記補助部材を前記第一金属部材及び前記第二金属部材のいずれか一方に載置しつつ、前記補助部材の端部が前記突合せ部を挟んで他方の金属部材側に突出するように配置し、
前記摩擦攪拌工程では、前記補助部材のうち当該補助部材が載置された一方の金属部材側に摩擦攪拌接合で発生するバリが形成されるように接合条件を設定することを特徴とする請求項5に記載の接合方法。
In the arranging step, the auxiliary member is placed on one of the first metal member and the second metal member, and an end portion of the auxiliary member protrudes toward the other metal member with the butting portion interposed therebetween. Arranged to
The joining condition is set in the friction stir step so that burrs generated by friction stir welding are formed on one metal member side of the auxiliary member on which the auxiliary member is placed. 5. The joining method according to 5.
攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、
前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材又は前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させた状態で突合せ部を形成する突合せ工程と、
前記第一金属部材又は前記第二金属部材に面接触するように補助部材を配置する配置工程と、
回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法。
A joining method for joining the first metal member and the second metal member using a rotary tool equipped with a stirring pin,
The end surface on the one end side of the first metal member and the end surface on the one end side of the second metal member are abutted, and the one end side is higher than the other end side of the first metal member or the second metal member. A butting step of forming a butting portion in a state where any one of the first metal member and the second metal member is inclined;
An arranging step of arranging an auxiliary member so as to be in surface contact with the first metal member or the second metal member;
The rotating stirring pin is inserted from the surface side of the auxiliary member, and only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member, and the rotation is performed along the abutting portion. A friction stirring step of joining the first metal member, the second metal member, and the auxiliary member by relatively moving a tool.
前記突合せ工程では、第一金属部材及び前記第二金属部材を載置する載置部に形成された段差を利用して前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させ、前記第一金属部材及び前記第二金属部材のいずれか他方を前記載置部上に水平に載置することを特徴とする請求項7に記載の接合方法。   In the butting step, the first metal member and the second metal member are inclined using a step formed on the placement portion on which the first metal member and the second metal member are placed, The joining method according to claim 7, wherein either one of the first metal member and the second metal member is horizontally placed on the placement portion. バリが形成された前記補助部材を前記第一金属部材又は前記第二金属部材から除去する除去工程を含むことを特徴とする請求項7または請求項8に記載の接合方法。   The joining method according to claim 7, further comprising a removing step of removing the auxiliary member formed with burrs from the first metal member or the second metal member. 前記摩擦攪拌工程では、摩擦攪拌接合で発生するバリが前記補助部材に形成されるように接合条件を設定することを特徴とする請求項9に記載の接合方法。   The joining method according to claim 9, wherein in the friction stirring step, joining conditions are set so that burrs generated in the friction stir welding are formed on the auxiliary member. 攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、
前記第一金属部材の一端側の端面と前記第二金属部材の一端側の端面とを突き合わせ、且つ前記第一金属部材又は前記第二金属部材の他端側に対して一端側が高くなるように前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させた状態で突合せ部を形成する突合せ工程と、
前記第一金属部材及び前記第二金属部材上に補助部材を配置する配置工程と、
回転する前記攪拌ピンを前記補助部材の表面側から挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記突合せ部に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法。
A joining method for joining the first metal member and the second metal member using a rotary tool equipped with a stirring pin,
The end surface on the one end side of the first metal member and the end surface on the one end side of the second metal member are abutted, and the one end side is higher than the other end side of the first metal member or the second metal member. A butting step of forming a butting portion in a state where any one of the first metal member and the second metal member is inclined;
An arranging step of arranging an auxiliary member on the first metal member and the second metal member;
The rotating stirring pin is inserted from the surface side of the auxiliary member, and only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member, and the rotation is performed along the abutting portion. A friction stirring step of joining the first metal member, the second metal member, and the auxiliary member by relatively moving a tool.
前記突合せ工程では、第一金属部材及び前記第二金属部材を載置する載置部に形成された段差を利用して前記第一金属部材及び前記第二金属部材のいずれか一方を傾斜させ、前記第一金属部材及び前記第二金属部材のいずれか他方を前記載置部上に水平に載置することを特徴とする請求項11に記載の接合方法。   In the butting step, the first metal member and the second metal member are inclined using a step formed on the placement portion on which the first metal member and the second metal member are placed, The joining method according to claim 11, wherein either one of the first metal member and the second metal member is horizontally placed on the placement portion. バリが形成された前記補助部材を前記第一金属部材及び前記第二金属部材から除去する除去工程を含むことを特徴とする請求項11または請求項12に記載の接合方法。   The joining method according to claim 11, further comprising a removing step of removing the auxiliary member formed with burrs from the first metal member and the second metal member. 前記配置工程では、前記補助部材を前記第一金属部材及び前記第二金属部材のいずれか一方に載置しつつ、前記補助部材の端部が前記突合せ部を挟んで他方の金属部材側に突出するように配置し、
前記摩擦攪拌工程では、前記補助部材のうち当該補助部材が載置された一方の金属部材側に摩擦攪拌接合で発生するバリが形成されるように接合条件を設定することを特徴とする請求項13に記載の接合方法。
In the arranging step, the auxiliary member is placed on one of the first metal member and the second metal member, and an end portion of the auxiliary member protrudes toward the other metal member with the butting portion interposed therebetween. Arranged to
The joining condition is set in the friction stir step so that burrs generated by friction stir welding are formed on one metal member side of the auxiliary member on which the auxiliary member is placed. 14. The joining method according to 13.
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Publication number Priority date Publication date Assignee Title
KR102261549B1 (en) * 2019-11-28 2021-06-04 윤면식 Welding clamp device

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JPH10193143A (en) * 1997-01-17 1998-07-28 Showa Alum Corp Friction stirring welding method
JP2015147217A (en) * 2014-02-04 2015-08-20 日本軽金属株式会社 Jointing method
JP2015150596A (en) * 2014-02-17 2015-08-24 日本軽金属株式会社 joining method
JP2015178126A (en) * 2014-03-19 2015-10-08 日本軽金属株式会社 joining method
JP2015213928A (en) * 2014-05-08 2015-12-03 日本軽金属株式会社 Friction-agitation joint method

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JPH10193143A (en) * 1997-01-17 1998-07-28 Showa Alum Corp Friction stirring welding method
JP2015147217A (en) * 2014-02-04 2015-08-20 日本軽金属株式会社 Jointing method
JP2015150596A (en) * 2014-02-17 2015-08-24 日本軽金属株式会社 joining method
JP2015178126A (en) * 2014-03-19 2015-10-08 日本軽金属株式会社 joining method
JP2015213928A (en) * 2014-05-08 2015-12-03 日本軽金属株式会社 Friction-agitation joint method

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KR102261549B1 (en) * 2019-11-28 2021-06-04 윤면식 Welding clamp device

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