JPH08197285A - Method for molding annular brazing filler metal - Google Patents
Method for molding annular brazing filler metalInfo
- Publication number
- JPH08197285A JPH08197285A JP1232495A JP1232495A JPH08197285A JP H08197285 A JPH08197285 A JP H08197285A JP 1232495 A JP1232495 A JP 1232495A JP 1232495 A JP1232495 A JP 1232495A JP H08197285 A JPH08197285 A JP H08197285A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- filler metal
- brazing filler
- outer peripheral
- rubber layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば、アルミニウ
ム製自動車用吸気マニホルド等を製造するにあたって円
筒状部材の接合部を置きろう付け法によりろう付けする
際に用いられるリング状ろう材の成形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a ring-shaped brazing material used for brazing a joint portion of cylindrical members by a placement brazing method in manufacturing an aluminum intake manifold for automobiles. Regarding
【０００２】[0002]
【従来の技術】従来、このようなリング状ろう材の成形
方法としては、例えば、図３に示すように、帯板状ろう
材(10)を、固定状に設けられた水平円筒状の心金(11)の
上方にこれと直交するように配置し（図３(a) 参照）、
下面に横断面半円弧状の凹溝を有する上型(12)を下降さ
せて、帯板状ろう材(10)の長さの中間部を心金(11)と可
動上型(12)の間でプレスすることにより、帯板状ろう材
(10)を逆Ｕ形に曲げ加工し（図３(b) 参照）、次いで、
心金(11)の両側斜下方に配置された一対の端曲げ用ポン
チ(13)を上昇させて、逆Ｕ形ろう材(15)をこれの両端部
が互いに近づくように馬蹄形に曲げ加工し（図３(c) 参
照）、最後に、上面に横断面半円弧状の凹溝を有する下
型(14)を上昇させて、馬蹄形ろう材(16)の下側部分を心
金(11)と可動下型(14)の間でプレスすることにより、馬
蹄形ろう材(16)をＯ形に曲げ加工し（図３(d) 参照）、
これによってリング状ろう材(17)を得るいわゆるＵＯプ
レスによるものがあった。2. Description of the Related Art Conventionally, as a method of forming such a ring-shaped brazing filler metal, for example, as shown in FIG. 3, a strip plate-shaped brazing filler metal (10) is fixed to a horizontal cylindrical core. Place it above gold (11) so that it is orthogonal to it (see Figure 3 (a)),
Lower the upper die (12), which has a concave groove with a semicircular cross section on the lower surface, and insert the middle part of the length of the strip brazing filler metal (10) into the core metal (11) and the movable upper die (12). Band plate brazing material by pressing between
Bend (10) into an inverted U shape (see Fig. 3 (b)), and then
The pair of end bending punches (13) arranged diagonally below both sides of the mandrel (11) are lifted to bend the inverted U-shaped brazing material (15) into a horseshoe shape so that both ends of the brazing material (15) come close to each other. (See FIG. 3 (c)) Finally, the lower die (14) having a concave groove with a semi-circular cross-section on the upper surface is lifted, and the lower part of the horseshoe brazing material (16) is attached to the mandrel (11). The horseshoe-shaped brazing filler metal (16) is bent into an O shape by pressing between the movable lower mold (14) and the movable lower mold (14) (see FIG. 3 (d)).
There was a so-called UO press for obtaining the ring-shaped brazing material (17).
【０００３】[0003]
【発明が解決しようとする課題】ところで、アルミニウ
ム製自動車用吸気マニホルドにおける分岐管のような横
断面真円形の部材の接合部のろう付けに用いられるリン
グ状ろう材は、その接合部にぴったりと嵌められる真円
形であることが望ましい。By the way, a ring-shaped brazing material used for brazing a joint portion of a member having a true circular cross section such as a branch pipe in an intake manifold for automobiles made of aluminum is fitted exactly to the joint portion. It is desirable that it is a perfect circle to be fitted.
【０００４】しかしながら、上述したＵＯプレスによる
リング状ろう材の成形方法では、以下の理由により真円
形に成形するのが困難であった。即ち、素材となるろう
材(10)が上下両型(12)(14)の凹溝になじみ難く、しかも
これら凹溝の表面は必ずしも滑りが良くないため、ろう
材(10)全体に渡って均一な加工度が得られなかった。ま
た、ＵＯプレスによる曲げ加工では、素材となるろう材
(10)に対して必ずしも十分な塑性変形が与えられず、成
形されたリング状ろう材(17)の両端が開く傾向があっ
た。However, with the above-described method of forming a ring-shaped brazing material by the UO press, it was difficult to form a true circle for the following reasons. That is, the brazing filler metal (10) that is the material is hard to fit in the concave grooves of the upper and lower molds (12) (14), and the surface of these concave grooves does not necessarily slide well, so the entire brazing filler metal (10) A uniform degree of processing could not be obtained. Also, in the bending process by UO press, it is a brazing filler metal
Sufficient plastic deformation was not given to (10), and both ends of the formed ring-shaped brazing material (17) tended to open.
【０００５】この発明は、上記のような問題点に鑑みて
なされたものであって、素材となるろう材に均一な加工
度を与えることができ、それによって極めて真円形に近
いリング状ろう材を成形する方法を提供することを目的
とするものである。The present invention has been made in view of the above problems, and it is possible to give a uniform workability to a brazing filler metal as a raw material, and thereby a ring-shaped brazing filler metal that is extremely close to a perfect circle. It is an object of the present invention to provide a method for molding.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、この発明によるリング状ろう材の成形方法は、線
状、棒状または板状のろう材を、鋼材製の第１ロールと
少なくとも外周部にゴム層を有する第２ロールとの間を
通過させて、リング状に成形することよりなるものであ
る。In order to achieve the above object, a method for forming a ring-shaped brazing filler metal according to the present invention comprises a linear, rod-shaped or plate-shaped brazing filler metal and at least a first roll made of steel. It is formed by passing between a second roll having a rubber layer on the outer peripheral portion and molding into a ring shape.
【０００７】第１ロールの外径は、要求されるリング状
ろう材の外径に応じて適宜設定される。第２ロールの外
径は、好適には、第１ロールの外径よりも大きいものと
なされ、より好適には、第１ロールの外径の３倍ないし
７倍の範囲内で設定される。これにより第１ロールと第
２ロールとの接触面積が増大し、第２ロールにおけるゴ
ム層よりなる外周面が受ける単位面積当りの圧力が減少
するので、ゴム層よりなる第２ロールの外周面の摩耗を
抑えることができる。両ロール間に与えられる圧力は、
第２ロールの外周部を構成するゴム層の硬度に応じて適
宜設定されるが、少なくとも素材となる線状等のろう材
が塑性変形しうる範囲内であることを要する。第２ロー
ルの外周部を構成するゴムとしては、ウレタンゴムが好
適に用いられるが、他のゴムであってもよい。The outer diameter of the first roll is appropriately set according to the required outer diameter of the ring-shaped brazing material. The outer diameter of the second roll is preferably larger than the outer diameter of the first roll, and is more preferably set within a range of 3 to 7 times the outer diameter of the first roll. As a result, the contact area between the first roll and the second roll increases, and the pressure per unit area received by the outer peripheral surface of the rubber layer of the second roll decreases. Wear can be suppressed. The pressure applied between both rolls is
Although it is appropriately set according to the hardness of the rubber layer forming the outer peripheral portion of the second roll, it is necessary that at least the linear brazing material, which is the raw material, be within the range in which it can be plastically deformed. Urethane rubber is preferably used as the rubber forming the outer peripheral portion of the second roll, but other rubber may be used.
【０００８】[0008]
【作用】線状、棒状または板状のろう材を、鋼材製の第
１ロールと、少なくとも外周部にゴム層を有する第２ロ
ールとの間を通過させることにより、素材となる線状等
のろう材の全長に渡って第１ロールの外径に応じた曲率
で曲げ加工が施される。これにより、ろう材に均一な加
工度を与えることができるので、極めて真円形に近いリ
ング状ろう材が得られる。The brazing material having a linear shape, a bar shape, or a plate shape is passed through between the first roll made of steel and the second roll having a rubber layer at least on the outer peripheral portion thereof to form a linear material as a raw material. Bending is performed over the entire length of the brazing material with a curvature according to the outer diameter of the first roll. As a result, the brazing filler metal can be given a uniform degree of processing, so that a ring-shaped brazing filler metal having an extremely round shape can be obtained.
【０００９】[0009]
【実施例】以下、この発明の実施例を、図１および図２
を参照しながら説明する。Embodiments of the present invention will be described below with reference to FIGS.
Will be described with reference to.
【００１０】図１中、(2) は鋼材製の上ロールであり、
(3) は外周部にウレタンゴム層(4)を有する下ロールで
ある。上下両ロール(2)(3)は、互いに平行でかつその外
周面どうしが圧接するように配置されている。両ロール
(2)(3)の外周面に加えられる圧力は、約８０ｋｇ・ｓで
ある。上ロール(2) の外径は３０．５ｍｍ、下ロール
(3) の外径は１５０ｍｍであって、下ロール(3) の外径
は上ロール(2) の外径の約５倍となされている。このよ
うに下ロール(3) の外径を上ロール(2) の外径より大き
なものとすることにより、上下両ロール(2)(3)の外周面
どうしの接触面積が増大し、下ロール(3) におけるウレ
タンゴム層(4) よりなる外周面が受ける単位面積当りの
圧力が減少するので、ウレタンゴム層(4) により構成さ
れた下ロール(3) の外周面の摩耗が軽減される。ウレタ
ンゴム層(4) は、JIS Ａ−６０〜８０度のウレタンゴム
シートよりなる。上下ロール(2)(3)の回転軸は、それぞ
れ回転駆動装置（図示略）に連結され、同装置を駆動さ
せることにより上ロール(2)が図１の逆時計回り、下ロ
ール(3) が時計回りに回転可能となされている。In FIG. 1, (2) is an upper roll made of steel,
(3) is a lower roll having a urethane rubber layer (4) on the outer peripheral portion. The upper and lower rolls (2) and (3) are arranged parallel to each other and their outer peripheral surfaces are in pressure contact with each other. Both rolls
(2) The pressure applied to the outer peripheral surface of (3) is about 80 kg · s. The outer diameter of the upper roll (2) is 30.5 mm, the lower roll
The outer diameter of (3) is 150 mm, and the outer diameter of the lower roll (3) is about 5 times the outer diameter of the upper roll (2). By making the outer diameter of the lower roll (3) larger than that of the upper roll (2), the contact area between the outer peripheral surfaces of the upper and lower rolls (2) and (3) increases, and Since the pressure per unit area received by the outer peripheral surface of the urethane rubber layer (4) in (3) is reduced, the wear of the outer peripheral surface of the lower roll (3) composed of the urethane rubber layer (4) is reduced. . The urethane rubber layer (4) is made of a JIS A-60-80 degree urethane rubber sheet. The rotation shafts of the upper and lower rolls (2) and (3) are respectively connected to a rotation drive device (not shown), and the upper roll (2) is rotated counterclockwise in FIG. Can be rotated clockwise.
【００１１】素材となるろう材(1) は、JIS Ａ４０４
３、Ａ４０４５等のＡｌ−Ｓｉ系合金圧延板に焼鈍処理
を施した後、これを切断してなる幅４〜７ｍｍの帯板状
ろう材である。The brazing material (1) used as the material is JIS A404
3, a band plate-shaped brazing material having a width of 4 to 7 mm obtained by subjecting an Al-Si alloy rolled sheet such as A4045 to annealing treatment and then cutting the sheet.
【００１２】そして、帯板状ろう材(1) をこれの一端側
から回転中の上下両ロール(2)(3)間に送り装置（図示
略）によって送っていくと、帯板状ろう材(1) の全長に
渡って上ロール(2) の外径に応じた曲率で曲げ加工が施
される。帯板状ろう材(1) は、所定長さ分だけ上下両ロ
ール(2)(3)間に送られた時点で、送り装置における上下
両ロール(2)(3)の直前に設けられた切断装置（図示略）
によって長さ７５〜１９０ｍｍごとに切断されるように
なされており、これによりろう材を連続的に成形するこ
とができる。Then, when the strip plate-shaped brazing material (1) is fed from one end side thereof to both the upper and lower rolls (2) and (3) which are rotating by a feeding device (not shown), the strip plate-shaped brazing material Bending is performed over the entire length of (1) with a curvature according to the outer diameter of the upper roll (2). The strip-shaped brazing filler metal (1) was provided immediately before the upper and lower rolls (2) and (3) in the feeding device when it was fed between the upper and lower rolls (2) and (3) by a predetermined length. Cutting device (not shown)
Is designed to be cut into pieces each having a length of 75 to 190 mm, so that the brazing material can be continuously formed.
【００１３】こうして、図２に示すような外径約４０ｍ
ｍ、厚さ約１ｍｍの極めて真円形に近いリング状ろう材
(5) を得た。Thus, the outer diameter is about 40 m as shown in FIG.
m, thickness of about 1 mm, ring-shaped brazing filler metal that is extremely close to a perfect circle
I got (5).
【００１４】[0014]
【発明の効果】この発明のリング状ろう材の成形方法に
よれば、線状、棒状または板状のろう材を、鋼材製の第
１ロールと、少なくとも外周部にゴム層を有する第２ロ
ールとの間を通過させることにより、素材となる線状等
のろう材の全長に渡って第１ロールの外径に応じた曲率
で曲げ加工が施されるので、ろう材に均一な加工度を与
えることができ、極めて真円形に近いリング状ろう材が
得られる。According to the method for forming a ring-shaped brazing filler metal of the present invention, the linear, rod-shaped or plate-shaped brazing filler metal is used for the first roll made of steel and the second roll having a rubber layer at least on the outer peripheral portion. By passing between the and, the bending process is performed with the curvature according to the outer diameter of the first roll over the entire length of the brazing material, such as the wire material, so that the brazing material has a uniform degree of processing. It is possible to obtain a ring-shaped brazing filler metal that is extremely close to a perfect circle.
【図１】この発明によるリング状ろう材の成形方法の実
施例を示す概略図である。FIG. 1 is a schematic view showing an embodiment of a method for forming a ring-shaped brazing material according to the present invention.
【図２】この発明の実施例の方法により成形されたリン
グ状ろう材の平面図である。FIG. 2 is a plan view of a ring-shaped brazing material formed by the method according to the embodiment of the present invention.
【図３】従来のリング状ろう材の成形方法を工程順に示
す概略図である。FIG. 3 is a schematic view showing a method of forming a conventional ring-shaped brazing material in the order of steps.
(1) ……帯板状ろう材 (2) ……上ロール（第１ロール） (3) ……下ロール（第２ロール） (4) ……ウレタンゴム層 (5) ……リング状ろう材 (1) …… Strip plate brazing material (2) …… Upper roll (1st roll) (3) …… Lower roll (2nd roll) (4) …… Urethane rubber layer (5) …… Ring brazing Material
Claims (1)
製の第１ロールと少なくとも外周部にゴム層を有する第
２ロールとの間を通過させて、リング状に成形すること
よりなる、リング状ろう材の成形方法。1. A linear, rod-shaped or plate-shaped brazing material is passed between a first roll made of steel and a second roll having a rubber layer on at least an outer peripheral portion to form a ring shape. A method for forming a ring-shaped brazing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232495A JPH08197285A (en) | 1995-01-30 | 1995-01-30 | Method for molding annular brazing filler metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232495A JPH08197285A (en) | 1995-01-30 | 1995-01-30 | Method for molding annular brazing filler metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08197285A true JPH08197285A (en) | 1996-08-06 |
Family
ID=11802140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1232495A Withdrawn JPH08197285A (en) | 1995-01-30 | 1995-01-30 | Method for molding annular brazing filler metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08197285A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006320931A (en) * | 2005-05-18 | 2006-11-30 | Nippon Light Metal Co Ltd | Method of soldering, and soldered product |
| KR102069218B1 (en) * | 2018-07-24 | 2020-01-23 | (주)은성 | An apparatus for manufacturing a lock up ring |
| CN112547863A (en) * | 2020-10-28 | 2021-03-26 | 北京工业大学 | Thin steel strip forming device with O-shaped lap joint section |
| CN113927210A (en) * | 2021-10-15 | 2022-01-14 | 河北中慧利威节能科技有限公司 | Steel strip forming process |
-
1995
- 1995-01-30 JP JP1232495A patent/JPH08197285A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006320931A (en) * | 2005-05-18 | 2006-11-30 | Nippon Light Metal Co Ltd | Method of soldering, and soldered product |
| KR102069218B1 (en) * | 2018-07-24 | 2020-01-23 | (주)은성 | An apparatus for manufacturing a lock up ring |
| CN112547863A (en) * | 2020-10-28 | 2021-03-26 | 北京工业大学 | Thin steel strip forming device with O-shaped lap joint section |
| CN113927210A (en) * | 2021-10-15 | 2022-01-14 | 河北中慧利威节能科技有限公司 | Steel strip forming process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020402 |