JP2017100408A - Manufacturing method for bonded body - Google Patents

Manufacturing method for bonded body Download PDF

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JP2017100408A
JP2017100408A JP2015237105A JP2015237105A JP2017100408A JP 2017100408 A JP2017100408 A JP 2017100408A JP 2015237105 A JP2015237105 A JP 2015237105A JP 2015237105 A JP2015237105 A JP 2015237105A JP 2017100408 A JP2017100408 A JP 2017100408A
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bonded
joined
parts
portions
composite materials
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吉宏 岩野
Yoshihiro Iwano
吉宏 岩野
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Toyota Motor Corp
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Toyota Motor Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0609—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding characterised by the movement of the parts to be joined
    • B29C65/0618—Linear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/341—Measures for intermixing the material of the joint interlayer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/547—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/76—Making non-permanent or releasable joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method for a bonded body 1 being capable of partially enhancing bonding strength thereof and of controlling a destruction mode of the bonded body 1 while holding entire strength of bonded portions 2 in which portions to be bonded 12 and 22 of two composite materials 10 and 20 are bonded to each other.SOLUTION: A composite material 10 in which a wall thickness in a pressurizing direction for pressurizing a portion to be bonded 12 is varied such that unevenness is formed on a surface to be bonded 12a of the portion to be bonded 12 is prepared. Portions to be bonded 12 and 22 of two composite materials 10 and 20 are caused to overlap with each other, surfaces to be bonded 12a and 22a are brought into contact with each other, thermoplastic resin of the portions to be bonded 12 and 22 is softened by causing the portions to be bonded 12 and 22 to slide with respect to each other while the portions to be bonded 12 and 22 are being pressurized, and the portions to be bonded 12 and 22 are deposited such that one portion to be bonded 12 in a state of overlapping with each other sinks into the other portion to be bonded 22.SELECTED DRAWING: Figure 1

Description

本発明は、熱可塑性樹脂に強化繊維が含有した繊維強化樹脂材料からなる２つの複合材を対向して接触させた状態で、これらを接合する接合体の製造方法に関する。   The present invention relates to a method for manufacturing a joined body in which two composite materials made of a fiber reinforced resin material containing reinforcing fibers in a thermoplastic resin are brought into contact with each other in a facing state.

従来から、熱可塑性樹脂に強化繊維が含有した繊維強化樹脂材料からなる複合材は、同形状の金属材料からなる部材よりも軽量であり、かつ、同形状の高分子樹脂のみからなる部材よりも、高い強度を得ることができるので、幅広く用いられている。   Conventionally, a composite material made of a fiber reinforced resin material containing a reinforced fiber in a thermoplastic resin is lighter than a member made of a metal material of the same shape and more than a member made of only a polymer resin of the same shape. Since it can obtain high strength, it is widely used.

例えば、特許文献１には、上述した繊維強化樹脂材料からなる複合材を接合する技術が開示されている。具体的には、２つの複合材が接合される被接合部分の被接合面は、平面状であり、２つの複合材の被接合部分を重ね合わせて被接合面同士を接触させる。次に、被接合部分同士を加圧しながら、被接合部分同士を摺動するまたは接合部分同士に超音波振動を付与する。これにより、被接合部分同士の熱可塑性樹脂を軟化させ、被接合部分同士を溶着させる。   For example, Patent Document 1 discloses a technique for joining a composite material made of the above-described fiber-reinforced resin material. Specifically, the bonded surfaces of the bonded portions to which the two composite materials are bonded are planar, and the bonded surfaces of the two composite materials are overlapped to contact each other. Next, while pressurizing the joined parts, the joined parts are slid or ultrasonic vibrations are applied to the joined parts. This softens the thermoplastic resin between the bonded parts and welds the bonded parts together.

特開２０１５−１３１３９４号公報Japanese Patent Laying-Open No. 2015-131394

しかしながら、特許文献１に示す技術の如く、２つの複合材の被接合部分の被接合面は、いずれも平面状であるため、溶着時に被接合部分同士が加圧されていても、一方の被接合部分が他方の被接合部分にほとんど沈み込まない。したがって、溶着時に、被接合部分同士の強化繊維が絡み合い難く、接合部分（溶着部）の強度は、均一ではあるが充分ではない。この結果、得らえた接合体は、接合部分のどの箇所から壊れやすいか予測し難く、接合体の破壊モードをコントロールし難い。   However, as in the technique shown in Patent Document 1, since the surfaces to be bonded of the two composite parts to be bonded are both flat, even if the parts to be bonded are pressurized during welding, The joining portion hardly sinks into the other joined portion. Therefore, at the time of welding, the reinforcing fibers of the joined parts are hardly entangled, and the strength of the joined part (welded part) is uniform but not sufficient. As a result, it is difficult to predict from which part of the joined part the obtained joined body is fragile, and it is difficult to control the fracture mode of the joined body.

本発明は、このような点を鑑みて、その目的とするところは、２つの複合材の被接合部分同士の接合部分の全体的な強度を保持しつつ、部分的にその接合強度を高め、接合体の破壊モードをコントロールすることができる接合体の製造方法を提供することにある。   In view of such points, the present invention aims to partially increase the bonding strength while maintaining the overall strength of the bonded portion between the bonded portions of the two composite materials, An object of the present invention is to provide a method of manufacturing a joined body capable of controlling the fracture mode of the joined body.

前記課題を鑑みて、本発明に係る接合体の製造方法は、熱可塑性樹脂に強化繊維が含有した繊維強化樹脂材料からなる２つの複合材同士が接合される被接合部分を重ね合わせ、該被接合部分同士を加圧しながら、前記２つの複合材を接合する接合体の製造方法であって、前記２つの複合材のうち少なくとも一方の複合材の前記被接合部分の被接合面に凹凸が形成されるように、前記被接合部分を加圧する加圧方向の肉厚を変化させた複合材を準備する工程と、前記２つの複合材の前記被接合部分同士を重ね合わせて前記被接合面同士を接触させ、前記被接合部分同士を加圧しながら、前記被接合部分同士を摺動するまたは前記被接合部分同士に超音波振動を付与することにより、前記被接合部分同士の前記熱可塑性樹脂を軟化させ、前記重ね合わせた状態の一方の被接合部分が、他方の被接合部分に沈み込むように、前記被接合部分同士を溶着することを特徴とする。   In view of the above problems, a method for manufacturing a joined body according to the present invention includes superposing a joined portion where two composite materials made of a fiber reinforced resin material containing reinforcing fibers in a thermoplastic resin are joined, A method for manufacturing a joined body in which the two composite materials are joined while pressurizing the joined portions, wherein unevenness is formed on a joined surface of the joined portion of at least one of the two composite materials. A step of preparing a composite material in which the thickness in the pressurizing direction is changed to pressurize the bonded parts, and the bonded surfaces of the two composite materials are overlapped with each other. The thermoplastic resin between the joined parts is made by sliding the joined parts while applying pressure to the joined parts or applying ultrasonic vibration to the joined parts. Soften and overlap One of the joined portions of the Align was state, so that sink into the other of the joint portion, characterized by welding the joint target together.

本発明によれば、少なくとも一方の複合材の被接合部分（一方の被接合部分）のうち、加圧方向の肉厚を厚くした部分（厚肉部）は、溶着時に、他方の複合材の被接合部分（他方の被接合部分）に対して深く沈み込む。これにより、この部分では、被接合部分同士の強化繊維が絡み合い、この部分の強度を高めることができる。   According to the present invention, at least one of the bonded parts of the composite material (one bonded part) has a thickened part (thick part) in the pressing direction of the other composite material at the time of welding. It sinks deeply into the part to be joined (the other part to be joined). Thereby, in this part, the reinforced fiber of to-be-joined parts can be entangled, and the intensity | strength of this part can be raised.

一方の複合材の被接合部分（一方の被接合部分）のうち、厚肉部より加圧方向の肉厚を薄くした部分は、溶着時に、他方の複合材の被接合部分（他方の被接合部分）に対して深く沈まない。これにより、この部分では、被接合部分同士の強化繊維が絡み合い難く、この部分の強度は高くならない。   Of the part to be joined of one composite material (one part to be joined), the part whose thickness in the pressing direction is thinner than the thick part is the part to be joined (the other part to be joined) at the time of welding. It does not sink deeply against (part). Thereby, in this part, the reinforcing fibers of the joined parts are hardly entangled, and the strength of this part does not increase.

このような結果、１つの接合体において、２つの複合材の被接合部分同士の接合部分の全体的な強度を保持しつつ、部分的にその接合強度を高め、強度の変化を持たせることができ、破壊モードをコントロールすることができる。   As a result, in one bonded body, it is possible to partially increase the bonding strength and maintain a change in strength while maintaining the overall strength of the bonded portion between the bonded portions of the two composite materials. Yes, you can control the destruction mode.

（ａ）〜（ｃ）は、本発明の実施形態に係る接合体の製造方法を説明するための図であり、（ａ）は、接合される２つの複合材の模式的斜視図であり、（ｂ）は、（ａ）に示す複合材の被接合部分を重ね合わせた状態でのこれらの接合を説明するための模式的断面図であり、（ｃ）は、接合体の模式的斜視図である。(A)-(c) is a figure for demonstrating the manufacturing method of the conjugate | zygote which concerns on embodiment of this invention, (a) is a typical perspective view of two composite materials joined, (B) is typical sectional drawing for demonstrating these joining in the state which piled up the to-be-joined part of the composite material shown to (a), (c) is a typical perspective view of a conjugate | zygote. It is. 図１（ｂ）の工程で使用する振動溶着機の模式的概念図である。It is a typical conceptual diagram of the vibration welding machine used at the process of FIG.1 (b). 図１に示す接合体の製造方法の第１の変形例を示した模式図であり、（ａ）は、接合される２つの複合材の模式的斜視図であり、（ｂ）は、接合体の模式的斜視図である。It is the schematic diagram which showed the 1st modification of the manufacturing method of the conjugate | zygote shown in FIG. 1, (a) is a typical perspective view of two composite materials joined, (b) is a conjugate | zygote. It is a typical perspective view of. 図１に示す接合体の製造方法の第２の変形例を示した模式図であり、（ａ）は、接合される２つの複合材の模式的斜視図であり、（ｂ）は、接合体の模式的斜視図である。It is the schematic diagram which showed the 2nd modification of the manufacturing method of the conjugate | zygote shown in FIG. 1, (a) is a typical perspective view of two composite materials joined, (b) is a conjugate | zygote. It is a typical perspective view of. 図１に示す接合体の製造方法の第３の変形例を示した模式図であり、（ａ）は、接合される２つの複合材の模式的斜視図であり、（ｂ）は、接合体の模式的斜視図である。It is the schematic diagram which showed the 3rd modification of the manufacturing method of the conjugate | zygote shown in FIG. 1, (a) is a typical perspective view of two composite materials joined, (b) is a conjugate | zygote. It is a typical perspective view of.

以下に本発明の実施形態を、図１〜５を参照しながら説明する。
図１は、本発明の実施形態に係る接合体１の製造方法を説明するための図であり、図１（ａ）は、接合される２つの複合材１０，２０の模式的斜視図であり、図１（ｂ）は、図１（ａ）に示す複合材１０，２０の被接合部分１２，２２を重ね合わせた状態でのこれらの接合を説明するための模式的断面図であり、図１（ｃ）は、接合体１の模式的斜視図である。図２は、図１（ｂ）の工程で使用する振動溶着機３０の模式的概念図である。 Embodiments of the present invention will be described below with reference to FIGS.
FIG. 1 is a diagram for explaining a method of manufacturing a joined body 1 according to an embodiment of the present invention, and FIG. 1 (a) is a schematic perspective view of two composite materials 10 and 20 to be joined. FIG. 1B is a schematic cross-sectional view for explaining the joining in a state where the joined portions 12 and 22 of the composite materials 10 and 20 shown in FIG. 1 (c) is a schematic perspective view of the joined body 1. FIG. 2 is a schematic conceptual diagram of the vibration welding machine 30 used in the process of FIG.

本実施形態では、図１（ｃ）に示す接合体１を製造する。接合体１は、２つの複合材１０，２０を接合した中空部３を有した接合体である。接合体１は、熱可塑性樹脂に強化繊維が含有した繊維強化樹脂材料からなり、接合体１には、２つの複合材１０，２０を接合した接合部分２が、フランジ部として形成されている。   In this embodiment, the joined body 1 shown in FIG. The joined body 1 is a joined body having a hollow portion 3 in which two composite materials 10 and 20 are joined. The joined body 1 is made of a fiber reinforced resin material in which reinforcing fibers are contained in a thermoplastic resin, and the joined body 1 is formed with a joined portion 2 in which two composite materials 10 and 20 are joined as a flange portion.

以下に、接合体１の製造方法を説明する。まず、図１（ａ）に示すように、２つの複合材１０，２０を準備する。各複合材１０，２０は、熱可塑性樹脂に強化繊維を含有した強化繊維樹脂材料（ＦＲＰ）からなる。   Below, the manufacturing method of the conjugate | zygote 1 is demonstrated. First, as shown in FIG. 1A, two composite materials 10 and 20 are prepared. Each of the composite materials 10 and 20 is made of a reinforced fiber resin material (FRP) containing a reinforced fiber in a thermoplastic resin.

複合材１０，２０に含まれる熱可塑性樹脂としては、ポリプロピレン（ＰＰ）、ポリアミド（ＰＡ）、ポリスチレン（ＰＳ）などを挙げることができ、後述する接合（溶着）時に、軟化することができるものであれば、特にその材料は限定されるものではない。   Examples of the thermoplastic resin contained in the composite materials 10 and 20 include polypropylene (PP), polyamide (PA), polystyrene (PS), and the like, which can be softened during bonding (welding) described later. If there is, the material is not particularly limited.

強化繊維としては、炭素繊維、ガラス繊維等を挙げることができ、後述する複合材１０，２０同士の接合が阻害されなければ、その繊維長さおよび配置状態は、限定されるものではない。   Examples of the reinforcing fiber include carbon fiber and glass fiber, and the fiber length and arrangement state are not limited as long as the bonding between the composite materials 10 and 20 described later is not hindered.

各複合材１０（２０）には、凹部１１（２１）が形成されており、凹部１１（２１）の両側には、これらを接合するための一対の鍔状の被接合部分１２，１２（２２，２２）が形成されている。複合材１０，２０は、射出成形により成形すること、または板状の繊維強化樹脂材料を熱圧成形することにより得ることができる。   Each composite material 10 (20) is formed with a recess 11 (21), and a pair of bowl-shaped joined portions 12 and 12 (22) for joining them on both sides of the recess 11 (21). , 22) are formed. The composite materials 10 and 20 can be obtained by molding by injection molding or by hot-pressure molding a plate-like fiber reinforced resin material.

さらに、複合材１０は、被接合部分１２の被接合面１２ａに凹凸が形成されるように、被接合部分１２，２２を溶着時に加圧する加圧方向の肉厚を変化させている。具体的には、被接合部分１２の被接合面１２ａには、長手方向に沿って、段付き凹溝１２ｂが形成されている。具体的には、被接合部分１２のうち、段付き凹溝１２ｂが形成された部分が薄肉部１２ｃとして形成されており、それ以外の部分が薄肉部１２ｃよりも肉厚の厚い厚肉部１２ｄとして形成されている。   Further, the thickness of the composite material 10 in the pressing direction in which the bonded portions 12 and 22 are pressurized during welding is changed so that irregularities are formed on the bonded surface 12 a of the bonded portion 12. Specifically, a stepped groove 12b is formed in the bonded surface 12a of the bonded portion 12 along the longitudinal direction. Specifically, a portion where the stepped groove 12b is formed in the joined portion 12 is formed as a thin portion 12c, and the other portion is a thick portion 12d which is thicker than the thin portion 12c. It is formed as.

次に、図１（ｃ）および図２に示すように、２つの複合材１０，２０の間に中空部３が形成されるように、２つの複合材１０，２０の凹部１１，２１同士が向き合った状態で２つの複合材１０，２０を接触させる。具体的には、図１（ｂ）に示すように、各被接合部分１２，２２同士を重ね合わせて、被接合面１２ａ，２２ａ同士を接触させる。   Next, as shown in FIG. 1C and FIG. 2, the concave portions 11 and 21 of the two composite materials 10 and 20 are formed so that the hollow portion 3 is formed between the two composite materials 10 and 20. The two composite materials 10 and 20 are brought into contact with each other while facing each other. Specifically, as shown in FIG. 1B, the bonded portions 12 and 22 are overlapped to bring the bonded surfaces 12a and 22a into contact with each other.

この接触状態で、複合材１０を下冶具３１にセットし、図２に示す加圧シリンダ３３をガイドシャフト３４に沿って可動し、下冶具３１と共に複合材１０，２０を上昇させることにより、複合材２０を上冶具３２にセットする。   In this contact state, the composite material 10 is set on the lower jig 31, the pressure cylinder 33 shown in FIG. 2 is moved along the guide shaft 34, and the composite materials 10, 20 are raised together with the lower jig 31, thereby The material 20 is set on the upper jig 32.

次に、下冶具３１を介して、加圧シリンダ３３で、下冶具３１から上冶具３２に向かって、２つの複合材１０，２０の被接合部分１２，２２同士を加圧する。次に、電源３５から電磁コイル３６に電流を周期的に通電することで、ドライバーボックス３９を介して、スプリング３７を振動させ、上冶具３２を水平方向に振動させる。上冶具３２の振動は、ピックアップセンサ３８の検出信号によりフィードバック制御される。   Next, the bonded portions 12 and 22 of the two composite materials 10 and 20 are pressed from the lower jig 31 toward the upper jig 32 by the pressurizing cylinder 33 through the lower jig 31. Next, a current is periodically supplied from the power source 35 to the electromagnetic coil 36 to vibrate the spring 37 via the driver box 39 and vibrate the upper jig 32 in the horizontal direction. The vibration of the upper jig 32 is feedback controlled by the detection signal of the pickup sensor 38.

これにより、図１（ｂ），図２に示すように、複合材１０，２０の被接合部分１２，２２同士を摺動させることができる。この摺動により、被接合部分１２，２２同士が接触している部分で発熱させ、被接合部分１２，２２同士を溶着させる。   Thereby, as shown in FIG.1 (b) and FIG. 2, the to-be-joined parts 12 and 22 of the composite materials 10 and 20 can be slid. By this sliding, heat is generated at the portion where the bonded portions 12 and 22 are in contact with each other, and the bonded portions 12 and 22 are welded together.

具体的には、図１（ａ）に示す複合材１０の被接合部分１２のうち、段付き凹溝１２ｂが形成された薄肉部１２ｃ以外の部分（すなわち厚肉部１２ｄ）の被接合面１２ａと、これに接触する複合材２０の被接合部分２２の被接合面２２ａとが接触した状態で摺動する。これにより、これらの被接合面１２ａ，２２ａ同士が発熱し、この発熱で、これらに含まれる熱可塑性樹脂が軟化する。   Specifically, of the bonded portion 12 of the composite material 10 shown in FIG. 1A, the bonded surface 12a of the portion other than the thin portion 12c where the stepped groove 12b is formed (that is, the thick portion 12d). And the bonded surface 22a of the bonded portion 22 of the composite material 20 that is in contact therewith slides in a contacted state. Thereby, these to-be-joined surfaces 12a and 22a generate | occur | produce heat | fever, and the thermoplastic resin contained in these is softened by this heat_generation | fever.

被接合部分１２，２２同士は下方から押圧されているので、軟化した熱可塑性樹脂の一部が、段付き凹溝１２ｂに流動するとともに、重ね合わせた状態の複合材１０の被接合部分１２が、複合材２０の被接合部分２２に沈み込む。   Since the joined parts 12 and 22 are pressed from below, a part of the softened thermoplastic resin flows into the stepped groove 12b, and the joined part 12 of the composite material 10 in the overlapped state is formed. Then, it sinks into the bonded portion 22 of the composite material 20.

最終的には、複合材１０の被接合部分１２の段付き凹溝１２ｂの表面と、複合材２０の被接合部分２２に溶着し、重ね合わせた状態の複合材１０の被接合部分１２が、複合材２０の被接合部分２２に対して、所定の量沈み込んだ時点で、溶着（摺動）を終了する。これにより、複合材１０の被接合部分１２の厚肉部１２ｄおよび薄肉部１２ｃの双方が、複合材２０の被接合部分２２に溶着される。   Eventually, the surface of the stepped groove 12b of the bonded portion 12 of the composite material 10 and the bonded portion 22 of the composite material 20 are welded to each other and the bonded portion 12 of the composite material 10 in an overlapped state is The welding (sliding) is finished when a predetermined amount of the material is submerged into the bonded portion 22 of the composite material 20. Thereby, both the thick portion 12d and the thin portion 12c of the bonded portion 12 of the composite material 10 are welded to the bonded portion 22 of the composite material 20.

その後、加圧シリンダ３３をガイドシャフト３４に沿って可動し、下冶具３１を下降させ、振動溶着機３０から接合体１を取り外し、図１（ｃ）に示す接合体１を得ることができる。   Thereafter, the pressurizing cylinder 33 is moved along the guide shaft 34, the lower jig 31 is lowered, and the joined body 1 is detached from the vibration welding machine 30 to obtain the joined body 1 shown in FIG.

本実施形態によれば、複合材１０の被接合部分１２のうち、加圧方向の肉厚を厚くした厚肉部１２ｄは、溶着時に、複合材２０の被接合部分２２に対して深く沈み込む。これにより、この部分２ａでは、被接合部分１２，２２同士の強化繊維が絡み合い、この部分２ａの強度を高めることができる。   According to the present embodiment, the thick portion 12d having a thickened thickness in the pressurizing direction in the bonded portion 12 of the composite material 10 sinks deeply into the bonded portion 22 of the composite material 20 during welding. . Thereby, in this part 2a, the reinforcing fibers of the joined parts 12 and 22 are entangled, and the strength of this part 2a can be increased.

一方、複合材１０の被接合部分１２のうち、加圧方向の肉厚を薄くした薄肉部１２ｃは、溶着時に、複合材２０の被接合部分２２に対して深く沈まない。これにより、この部分２ｂでは、被接合部分１２，２２同士の強化繊維が絡み合い難く、この部分２ｂの強度は高くならない。   On the other hand, the thin portion 12c having a reduced thickness in the pressurizing direction in the bonded portion 12 of the composite material 10 does not sink deeply with respect to the bonded portion 22 of the composite material 20 during welding. Thereby, in this part 2b, the reinforced fiber of the to-be-joined parts 12 and 22 is hard to be entangled, and the intensity | strength of this part 2b does not become high.

このようにして、１つの接合体１において、２つの複合材１０，２０の被接合部分１２，２２同士が接合された接合部分２の全体的な強度を保持しつつ、接合部分２の接合強度を部分的に高めることができる。この結果、接合部分２の強度に変化を持たせることができ、接合体１の破壊モードをコントロールすることができる。   In this way, in one bonded body 1, the bonding strength of the bonded portion 2 is maintained while maintaining the overall strength of the bonded portion 2 where the bonded portions 12 and 22 of the two composite materials 10 and 20 are bonded together. Can be partially enhanced. As a result, the strength of the joined portion 2 can be changed, and the fracture mode of the joined body 1 can be controlled.

図３〜図５は、図１に示す接合体１の製造方法の第１〜第３の変形例を示した模式図であり、図３〜図５の（ａ）は、接合される２つの複合材１０Ａ〜１０Ｃ，２０の模式的斜視図であり、図３〜図５の（ｂ）は、接合体１Ａ〜１Ｃの模式的斜視図である。   3 to 5 are schematic views showing first to third modifications of the manufacturing method of the joined body 1 shown in FIG. 1, and FIG. 3 to FIG. It is a typical perspective view of composite material 10A-10C, 20, (b) of FIGS. 3-5 is a typical perspective view of joined body 1A-1C.

図３（ａ）に示す第１変形例の如く、複合材１０Ａの被接合部分１２Ａの被接合面１２ａに、凹部１１の縁部に沿って凸条１２ｅが形成されてもよい。これにより、被接合部分１２のうち、凸条１２ｅが形成された部分が、厚肉部１２ｄとして形成され、それ以外の部分が厚肉部１２ｄよりも肉厚の薄い薄肉部１２ｃとして形成される。   As in the first modification shown in FIG. 3A, the ridge 12 e may be formed along the edge of the recess 11 on the surface 12 a to be bonded of the bonded portion 12 </ b> A of the composite material 10 </ b> A. Thereby, the part in which the protruding item | line 12e was formed among the to-be-joined parts 12 is formed as the thick part 12d, and the other part is formed as the thin part 12c thinner than the thick part 12d. .

このような複合材１０Ａを用いて、接合体１Ａを製造すると、厚肉部１２ｄは、溶着時に、複合材２０の被接合部分２２に対して深く沈み込み、図３（ｂ）に示すように、接合部分２Ａのうち沈み込んだ部分２ａでは、被接合部分１２，２２同士の強化繊維が絡み合い、この部分２ａの強度を高めることができる。これにより、中空部３の近傍の接合部分２Ａの強度を部分的に高めることができる。一方、それ以外の部分２ｂは、被接合部分１２Ａ，２２同士の強化繊維が絡み合い難く、この部分２ｂの強度は高くならない。   When the joined body 1A is manufactured using such a composite material 10A, the thick portion 12d sinks deeply into the joined portion 22 of the composite material 20 during welding, as shown in FIG. In the part 2a submerged in the joining part 2A, the reinforcing fibers of the joined parts 12 and 22 are entangled, and the strength of the part 2a can be increased. Thereby, the intensity | strength of 2 A of joining parts of the vicinity of the hollow part 3 can be raised partially. On the other hand, in the other part 2b, the reinforcing fibers of the joined parts 12A and 22 are hardly entangled, and the strength of the part 2b does not increase.

図４（ａ）に示す第２変形例の如く、複合材１０Ｂの被接合部分１２Ｂの被接合面１２ａの一方側に、凸部１２ｆを形成してもよく、図５（ａ）に示す変形例の如く、複合材１０Ｃの被接合部分１２Ｃの被接合面１２ａの長手方向に沿った中央に、凸部１２ｇを形成してもよい。これにより、被接合部分１２Ｂ（１２Ｃ）のうち、凸部１２ｆ（１２ｇ）が形成された部分が、厚肉部１２ｄとして形成され、それ以外の部分が厚肉部１２ｄよりも肉厚の薄い薄肉部１２ｃとして形成される。   As in the second modified example shown in FIG. 4A, a convex portion 12f may be formed on one side of the bonded surface 12a of the bonded portion 12B of the composite material 10B, and the deformation shown in FIG. As an example, the convex portion 12g may be formed at the center along the longitudinal direction of the bonded surface 12a of the bonded portion 12C of the composite material 10C. Thereby, the part in which the convex part 12f (12g) is formed is formed as the thick part 12d in the part to be joined 12B (12C), and the other part is thinner and thinner than the thick part 12d. It is formed as a part 12c.

このような複合材１０Ｂ（１０Ｃ）を用いて、接合体１Ｂ（１Ｃ）を製造すると、同様に、厚肉部１２ｄは、溶着時に、複合材２０の被接合部分２２に対して深く沈み込み、図４（ｂ），図５（ｂ）に示すように、接合部分２Ｂ（２Ｃ）うち、深く沈み込んだ部分２ａの強度を高めることができる。一方、それ以外の部分２ｂは、被接合部分１２Ｂ（１２Ｃ），２２同士の強化繊維が絡み合い難く、この部分２ｂの強度は高くならない。   When the joined body 1B (1C) is manufactured using such a composite material 10B (10C), similarly, the thick portion 12d sinks deeply into the joined portion 22 of the composite material 20 during welding, As shown in FIG. 4B and FIG. 5B, the strength of the portion 2a that is deeply submerged in the joint portion 2B (2C) can be increased. On the other hand, in the other part 2b, the reinforcing fibers of the joined parts 12B (12C) and 22 are not easily entangled, and the strength of the part 2b does not increase.

このようにして、いずれの変形例においても、接合体１Ａ〜１Ｃの接合部分２Ａ〜２Ｃのうち所望の部分の強度を高め、接合部分２Ａ〜２Ｃの強度に変化を持たせることができ、接合体１Ａ〜１Ｃの破壊モードをコントロールすることができる。   As described above, in any of the modifications, the strength of a desired portion of the joined portions 2A to 2C of the joined bodies 1A to 1C can be increased, and the strength of the joined portions 2A to 2C can be changed. The destruction mode of the bodies 1A to 1C can be controlled.

以上、本発明の実施の形態を詳述してきたが、具体的な構成はこの実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲における設計変更があっても、それらは本発明に含まれるものである。   Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and even if there is a design change within a scope not departing from the gist of the present invention, they are not limited to this embodiment. It is included in the invention.

本実施形態では、複合材の被接合部分同士を振動溶着機を用いて摺動することにより、接触面同士を発熱させてこれらを溶着した。この他にも、複合材の被接合部分同士を加圧した状態で、一方側の被接合部分に超音波ホーンを配置し、被接合部分同士に超音波振動を付与することにより、被接合部分同士を発熱させ、被接合部分同士を溶着してもよい。   In this embodiment, the parts to be joined of the composite material are slid using a vibration welding machine, so that the contact surfaces are heated to weld them. In addition to this, in a state where the bonded parts of the composite material are pressurized, an ultrasonic horn is disposed on the bonded part on one side, and ultrasonic vibration is applied to the bonded parts, thereby the bonded part. The parts to be joined may be heated and welded together.

１，１Ａ〜１Ｃ：接合体、２，２Ａ〜２Ｃ：接合部分、１０，１０Ａ〜１０Ｃ，２０：複合材、１１，２１：凹部、１２，２２：被接合部分、１２ａ，２２ａ：被接合面。   1, 1A-1C: joined body, 2, 2A-2C: joined portion, 10, 10A-10C, 20: composite material, 11, 21: recessed portion, 12, 22: joined portion, 12a, 22a: joined surface .

Claims (1)

熱可塑性樹脂に強化繊維が含有した繊維強化樹脂材料からなる２つの複合材同士が接合される被接合部分を重ね合わせ、該被接合部分同士を加圧しながら、前記２つの複合材を接合する接合体の製造方法であって、
前記２つの複合材のうち少なくとも一方の複合材の前記被接合部分の被接合面に凹凸が形成されるように、前記被接合部分を加圧する加圧方向の肉厚を変化させた複合材を準備する工程と、
前記２つの複合材の前記被接合部分同士を重ね合わせて前記被接合面同士を接触させ、前記被接合部分同士を加圧しながら、前記被接合部分同士を摺動するまたは前記被接合部分同士に超音波振動を付与することにより、前記被接合部分同士の前記熱可塑性樹脂を軟化させ、前記重ね合わせた状態の一方の被接合部分が、他方の被接合部分に沈み込むように、前記被接合部分同士を溶着することを特徴とする接合体の製造方法。 Joining the two composite materials while superimposing the parts to be joined to each other and joining the two composites made of a fiber reinforced resin material containing reinforcing fibers in a thermoplastic resin, and pressurizing the parts to be joined A method for manufacturing a body,
A composite material in which the thickness in the pressurizing direction for pressurizing the bonded portion is changed so that irregularities are formed on the bonded surface of the bonded portion of at least one of the two composite materials. A preparation process;
The joined parts of the two composite materials are overlapped with each other, the joined surfaces are brought into contact with each other, and the joined parts are slid while pressing the joined parts or between the joined parts. Applying ultrasonic vibrations softens the thermoplastic resin between the bonded parts, so that the one bonded part in the overlapped state sinks into the other bonded part. A method for manufacturing a joined body, wherein the parts are welded together.
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EP4209334A1 (en) * 2021-12-17 2023-07-12 Rohr, Inc. Vibration welding systems and methods

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4209334A1 (en) * 2021-12-17 2023-07-12 Rohr, Inc. Vibration welding systems and methods
US11731369B2 (en) 2021-12-17 2023-08-22 Rohr, Inc. Vibration welding systems and methods

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