JP2017100408A

Movatterモバイル変換

Info

Publication number: JP2017100408A
Application number: JP2015237105A
Authority: JP
Inventors: 吉宏岩野; Yoshihiro Iwano
Original assignee: Toyota Motor Corp
Current assignee: Toyota Motor Corp
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2017-06-08

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

Translated fromJapanese

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 twocomposite materials 10 and 20 to be joined. FIG. 1B is a schematic cross-sectional view for explaining the joining in a state where the joinedportions 12 and 22 of thecomposite 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 thevibration 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 twocomposite 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 joinedportion 2 in which twocomposite 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, twocomposite materials 10 and 20 are prepared. Each of thecomposite 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 thecomposite 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 thecomposite 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 joinedportions 12 and 12 (22) for joining them on both sides of the recess 11 (21). , 22) are formed. Thecomposite 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 thecomposite material 10 in the pressing direction in which thebonded portions 12 and 22 are pressurized during welding is changed so that irregularities are formed on thebonded surface 12 a of thebonded portion 12. Specifically, astepped groove 12b is formed in thebonded surface 12a of thebonded portion 12 along the longitudinal direction. Specifically, a portion where thestepped groove 12b is formed in the joinedportion 12 is formed as athin portion 12c, and the other portion is athick portion 12d which is thicker than thethin 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, theconcave portions 11 and 21 of the twocomposite materials 10 and 20 are formed so that the hollow portion 3 is formed between the twocomposite materials 10 and 20. The twocomposite materials 10 and 20 are brought into contact with each other while facing each other. Specifically, as shown in FIG. 1B, thebonded portions 12 and 22 are overlapped to bring thebonded 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, thecomposite material 10 is set on thelower jig 31, thepressure cylinder 33 shown in FIG. 2 is moved along theguide shaft 34, and thecomposite materials 10, 20 are raised together with thelower jig 31, thereby Thematerial 20 is set on theupper 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, thebonded portions 12 and 22 of the twocomposite materials 10 and 20 are pressed from thelower jig 31 toward theupper jig 32 by the pressurizingcylinder 33 through thelower jig 31. Next, a current is periodically supplied from thepower source 35 to theelectromagnetic coil 36 to vibrate thespring 37 via thedriver box 39 and vibrate theupper jig 32 in the horizontal direction. The vibration of theupper jig 32 is feedback controlled by the detection signal of thepickup 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 thecomposite materials 10 and 20 can be slid. By this sliding, heat is generated at the portion where the bondedportions 12 and 22 are in contact with each other, and the bondedportions 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 bondedportion 12 of thecomposite material 10 shown in FIG. 1A, the bondedsurface 12a of the portion other than thethin portion 12c where the steppedgroove 12b is formed (that is, thethick portion 12d). And the bondedsurface 22a of the bondedportion 22 of thecomposite 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 joinedparts 12 and 22 are pressed from below, a part of the softened thermoplastic resin flows into the steppedgroove 12b, and the joinedpart 12 of thecomposite material 10 in the overlapped state is formed. Then, it sinks into the bondedportion 22 of thecomposite 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 steppedgroove 12b of the bondedportion 12 of thecomposite material 10 and the bondedportion 22 of thecomposite material 20 are welded to each other and the bondedportion 12 of thecomposite material 10 in an overlapped state is The welding (sliding) is finished when a predetermined amount of the material is submerged into the bondedportion 22 of thecomposite material 20. Thereby, both thethick portion 12d and thethin portion 12c of the bondedportion 12 of thecomposite material 10 are welded to the bondedportion 22 of thecomposite 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 pressurizingcylinder 33 is moved along theguide shaft 34, thelower jig 31 is lowered, and the joined body 1 is detached from thevibration 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, thethick portion 12d having a thickened thickness in the pressurizing direction in the bondedportion 12 of thecomposite material 10 sinks deeply into the bondedportion 22 of thecomposite material 20 during welding. . Thereby, in thispart 2a, the reinforcing fibers of the joinedparts 12 and 22 are entangled, and the strength of thispart 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, thethin portion 12c having a reduced thickness in the pressurizing direction in the bondedportion 12 of thecomposite material 10 does not sink deeply with respect to the bondedportion 22 of thecomposite material 20 during welding. Thereby, in thispart 2b, the reinforced fiber of the to-be-joined parts 12 and 22 is hard to be entangled, and the intensity | strength of thispart 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 bondedportion 2 is maintained while maintaining the overall strength of the bondedportion 2 where the bondedportions 12 and 22 of the twocomposite materials 10 and 20 are bonded together. Can be partially enhanced. As a result, the strength of the joinedportion 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 ofcomposite 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, theridge 12 e may be formed along the edge of therecess 11 on thesurface 12 a to be bonded of the bondedportion 12 </ b> A of thecomposite 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 thethick part 12d, and the other part is formed as thethin part 12c thinner than thethick 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 acomposite material 10A, thethick portion 12d sinks deeply into the joinedportion 22 of thecomposite material 20 during welding, as shown in FIG. In thepart 2a submerged in the joiningpart 2A, the reinforcing fibers of the joinedparts 12 and 22 are entangled, and the strength of thepart 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 theother part 2b, the reinforcing fibers of the joinedparts 12A and 22 are hardly entangled, and the strength of thepart 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, aconvex portion 12f may be formed on one side of the bondedsurface 12a of the bondedportion 12B of thecomposite material 10B, and the deformation shown in FIG. As an example, theconvex portion 12g may be formed at the center along the longitudinal direction of the bondedsurface 12a of the bondedportion 12C of thecomposite material 10C. Thereby, the part in which theconvex part 12f (12g) is formed is formed as thethick part 12d in the part to be joined 12B (12C), and the other part is thinner and thinner than thethick part 12d. It is formed as apart 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 joinedbody 1B (1C) is manufactured using such acomposite material 10B (10C), similarly, thethick portion 12d sinks deeply into the joinedportion 22 of thecomposite material 20 during welding, As shown in FIG. 4B and FIG. 5B, the strength of theportion 2a that is deeply submerged in thejoint portion 2B (2C) can be increased. On the other hand, in theother part 2b, the reinforcing fibers of the joinedparts 12B (12C) and 22 are not easily entangled, and the strength of thepart 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 joinedportions 2A to 2C of the joined bodies 1A to 1C can be increased, and the strength of the joinedportions 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

Translated fromJapanese

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.