JP2016175389A - Joined body of metal and resin, and joining method therefor - Google Patents

Joined body of metal and resin, and joining method therefor Download PDF

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JP2016175389A
JP2016175389A JP2015059358A JP2015059358A JP2016175389A JP 2016175389 A JP2016175389 A JP 2016175389A JP 2015059358 A JP2015059358 A JP 2015059358A JP 2015059358 A JP2015059358 A JP 2015059358A JP 2016175389 A JP2016175389 A JP 2016175389A
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resin
metal
metal member
resin member
rough surface
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優介 大脇
Yusuke Owaki
優介 大脇
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FTS Co Ltd
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FTS Co Ltd
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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
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to at least one of the parts to be joined
    • B29C66/30322—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to at least one of the parts to be joined in the form of rugosity
    • 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
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • 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
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
    • B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
    • B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0246—Cutting or perforating, e.g. burning away by using a laser or using hot air
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/026—Chemical pre-treatments
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one 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
    • B29C66/01—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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce a cost.SOLUTION: A joined body A of metal and a resin includes: a metal member 10; a resin member 20 joined to the metal member 10 by welding; a rough surface region 13 which is formed on a joining surface 11 to be joined to the resin member 20 in the metal member 10 and has a recessed portion 14; a welded portion 22 which is formed on the resin member 20 and is welded to the rough surface region 13 while being deformed by pressurization in a welding process; and a positioning section 26 which is formed in a region non-corresponding to the rough surface region 13 in the resin member 20 and specifies a positional relationship between the metal member 10 and the resin member 20 at the time of completion of welding by abutting against the metal member 10.SELECTED DRAWING: Figure 2

Description

本発明は、金属と樹脂の接合体及びその接合方法に関するものである。   The present invention relates to a metal / resin bonded body and a bonding method thereof.

特許文献１には、金属部材の表面に多数の微細凹部を形成し、この微細凹部が形成されている表面に樹脂を射出して成形し、成形された樹脂部材と金属部材とを接合する技術が開示されている。   Patent Document 1 discloses a technique for forming a large number of fine recesses on the surface of a metal member, injecting and molding a resin on the surface where the fine recesses are formed, and joining the formed resin member and the metal member. Is disclosed.

特開２００８−１７３９６７号公報JP 2008-173967 A

上記の接合体は、溶融樹脂を射出成形するための大掛かりな金型設備が必要となるため、製造コストが高くなる。
本発明は上記のような事情に基づいて完成されたものであって、コスト低減を図ることを目的とする。 Since the above-mentioned joined body requires a large-scale mold facility for injection molding of the molten resin, the manufacturing cost is increased.
The present invention has been completed based on the above circumstances, and an object thereof is to reduce costs.

第１の発明に係る金属と樹脂の接合体は、
金属部材と、
前記金属部材に溶着により接合された樹脂部材と、
前記金属部材における前記樹脂部材との接合面に形成され、凹部又は凸部を有する粗面領域と、
前記樹脂部材に形成され、溶着過程において加圧されることにより変形しながら前記粗面領域に溶着された溶着部と、
前記樹脂部材における前記粗面領域と非対応の領域に形成され、前記金属部材に突き当たることで溶着完了時における前記金属部材と前記樹脂部材との位置関係を規定する位置決め部とを備えているところに特徴を有する。 The metal / resin bonded body according to the first invention is:
A metal member;
A resin member joined to the metal member by welding;
A rough surface region formed on the joint surface of the metal member with the resin member, and having a recess or a protrusion,
A weld portion formed on the resin member and welded to the rough surface region while being deformed by being pressurized in the welding process;
A positioning portion that is formed in a region that does not correspond to the rough surface region of the resin member, and that defines a positional relationship between the metal member and the resin member at the time of completion of welding by abutting against the metal member. It has the characteristics.

第２の発明に係る金属と樹脂の接合方法は、
金属部材と樹脂部材とを接合する方法であって、
前記金属部材における前記樹脂部材との接合面に、凹部又は凸部を有する粗面領域を形成し、
前記樹脂部材における前記粗面領域と非対応の領域に位置決め部を形成した上で、
溶着過程では、前記樹脂部材の溶着部を加圧して変形させながら前記粗面領域に溶着し、
溶着完了時には、前記位置決め部を前記金属部材に突き当てることで、前記金属部材と前記樹脂部材との位置関係を規定するところに特徴を有する。 The method for joining a metal and a resin according to the second invention is as follows:
A method of joining a metal member and a resin member,
Forming a rough surface area having a concave or convex portion on the joint surface of the metal member with the resin member,
After forming a positioning part in the region not corresponding to the rough surface region in the resin member,
In the welding process, the welded portion of the resin member is welded to the rough surface region while being deformed by pressing,
When welding is completed, the positioning portion is abutted against the metal member to define the positional relationship between the metal member and the resin member.

本発明によれば、成形済みの樹脂部材を金属部材に溶着によって接合するので、溶融樹脂を射出成形するための大掛かりな金型設備が不要である。したがって、製造コストを低減することができる。
また、溶着過程において、加圧された溶着部が粗面領域に対して過剰に押し付けられた場合や、粗面領域に対する溶着部の押し付けが不足した場合には、溶着完了時に溶着部と粗面領域との溶着状態が不良となることが懸念される。しかし、本発明によれば、溶着工程において、位置決め部が金属部材に突き当たるまで樹脂部材を金属部材に接近させるようにすれば、溶着完了時には、樹脂部材と金属部材を適正な位置関係で位置決めすることができる。これにより、粗面領域に対して溶着部を適正に溶着することができる。 According to the present invention, since the molded resin member is joined to the metal member by welding, a large mold facility for injection molding of the molten resin is not necessary. Therefore, the manufacturing cost can be reduced.
Also, in the welding process, if the pressurized welded part is excessively pressed against the rough surface area, or if the welded part is insufficiently pressed against the rough surface area, the welded part and the rough surface are There is a concern that the welded state with the region becomes poor. However, according to the present invention, in the welding step, if the resin member is brought close to the metal member until the positioning portion hits the metal member, the resin member and the metal member are positioned in an appropriate positional relationship when the welding is completed. be able to. Thereby, a welding part can be welded appropriately with respect to a rough surface area | region.

実施例１において金属部材と樹脂部材の溶着を開始した直後の状態をあらわす部分拡大断面図The partial expanded sectional view showing the state immediately after starting the welding of a metal member and a resin member in Example 1. 金属部材と樹脂部材の溶着過程をあらわす部分拡大断面図Partial enlarged sectional view showing welding process of metal member and resin member 金属部材と樹脂部材の溶着が完了した状態をあらわす部分拡大断面図Partial enlarged sectional view showing a state where welding of a metal member and a resin member is completed

（ａ）第１及び第２の発明は、
前記位置決め部における前記金属部材への突当面には、断熱部材が配されていてもよい。
この構成によれば、溶着工程で金属部材が加熱されても、金属部材から位置決め部への伝熱が抑制されるので、位置決め部の加熱に起因する変形が防止される。したがって、位置決め部による位置決め機能の信頼性に優れている。 (A) The first and second inventions
A heat insulating member may be disposed on the abutting surface of the positioning portion against the metal member.
According to this configuration, even if the metal member is heated in the welding process, heat transfer from the metal member to the positioning portion is suppressed, so that deformation due to heating of the positioning portion is prevented. Therefore, the positioning function by the positioning unit is excellent in reliability.

（ｂ）第１及び第２の発明は、
前記樹脂部材のうち前記溶着部に連なり、且つ前記金属部材と対向するように配された隣接部と、
溶着過程で前記隣接部が前記粗面領域から遠ざかるように変形することを抑制する変形抑制部とを備えていてもよい。
溶着過程では、加圧された溶着部が粗面領域に押し付けられるのに伴い、溶着部に連なる隣接部が粗面領域から遠ざかるように変形しようとする。もし隣接部が変形すると、その分、粗面領域に対する溶着部の押し付け力が低下するため、溶着部と粗面領域との溶着状態が不良となることが懸念される。しかし本発明では、隣接部の変形を変形抑制部で抑制しているので、粗面領域に対する溶着部の押し付け力が保たれ、溶着部と粗面領域とを良好に密着させることができる。 (B) The first and second inventions
Of the resin member, adjacent to the welded portion and arranged to face the metal member,
You may provide the deformation | transformation suppression part which suppresses deform | transforming so that the said adjacent part may distance from the said rough surface area | region in the welding process.
In the welding process, as the pressurized welded part is pressed against the rough surface area, the adjacent part connected to the welded part tends to be deformed away from the rough surface area. If the adjacent portion is deformed, the pressing force of the welded portion against the rough surface region is reduced correspondingly, so that there is a concern that the welded state between the welded portion and the rough surface region becomes poor. However, in this invention, since the deformation | transformation of an adjacent part is suppressed by the deformation | transformation suppression part, the pressing force of the welding part with respect to a rough surface area | region is maintained, and a welding part and a rough surface area | region can be made to contact | adhere favorably.

（ｃ）第１及び第２の発明は、（ｄ）において、
前記変形抑制部が、前記樹脂部材に一体に形成されていてもよい。
この構成によれば、金属部材の形状を簡素化することができる。 (C) The first and second inventions in (d)
The deformation suppressing portion may be formed integrally with the resin member.
According to this configuration, the shape of the metal member can be simplified.

（ｄ）第１及び第２の発明は、（ｃ）において、
前記変形抑制部の一部が前記位置決め部に形成されていてもよい。
この構成によれば、位置決め部と変形抑制部とを互いに独立した形態で形成する場合に比べると、樹脂部材の形状を簡素化することができる。 (D) The first and second inventions in (c)
A part of the deformation suppressing part may be formed in the positioning part.
According to this structure, compared with the case where a positioning part and a deformation | transformation suppression part are formed in the mutually independent form, the shape of a resin member can be simplified.

（ｅ）第１及び第２の発明は、
溶着工程において、前記溶着部がレーザー光の照射によって加熱されていてもよい。
この構成によれば、溶着部を集中的に加熱できるので、加熱に要する時間を短縮できる。 (E) The first and second inventions
In the welding step, the welded part may be heated by laser light irradiation.
According to this configuration, since the welded portion can be heated intensively, the time required for heating can be shortened.

＜実施例１＞
以下、本発明を具体化した実施例１を図１〜図３を参照して説明する。本実施例の金属と樹脂の接合体Ａは、板状をなす金属部材１０と、金属部材１０よりも面積の小さい板状をなす樹脂部材２０とを溶着により接合して製造したものである。 <Example 1>
A first embodiment of the present invention will be described below with reference to FIGS. The metal / resin bonded body A of this embodiment is manufactured by welding a plate-shaped metal member 10 and a plate-shaped resin member 20 having a smaller area than the metal member 10 by welding.

金属部材１０の表面のうち樹脂部材２０が接合される領域は、接合面１１となっている。接合面１１の外周縁部は、平面状の受圧領域１２となっている。接合面１１のうち受圧領域１２で包囲された領域は、樹脂部材２０を溶着させるための粗面領域１３となっている。粗面領域１３は、金属部材１０の成形時点で平面であった接合面１１に、レーザー加工やエッチング処理等によって複数の凹部１４を形成して構成されている。尚、便宜上、図１〜３における凹部１４は、金属部材１０の厚さ寸法に比べて、大きさ（深さと、粗面領域１３における開口面積）を誇張して描いている。   A region of the surface of the metal member 10 to which the resin member 20 is bonded is a bonding surface 11. The outer peripheral edge of the joint surface 11 is a planar pressure receiving region 12. A region surrounded by the pressure receiving region 12 in the bonding surface 11 is a rough surface region 13 for welding the resin member 20. The rough surface region 13 is configured by forming a plurality of concave portions 14 on the joint surface 11 that was flat when the metal member 10 was formed, by laser processing, etching processing, or the like. For the sake of convenience, the recess 14 in FIGS. 1 to 3 is drawn with exaggerated size (depth and opening area in the rough surface region 13) compared to the thickness dimension of the metal member 10.

樹脂部材２０における金属部材１０との対向面２１のうち粗面領域１３と対応する領域は、溶着工程において、樹脂部材２０の融点以上の温度に加熱される溶着部２２となっている。樹脂部材２０が金属部材１０に溶着されていない状態において、溶着部２２の表面（金属部材１０と対向する面）は平面状である。樹脂部材２０における金属部材１０との対向面２１のうち、溶着部２２を全周に亘って包囲する枠状領域は、溶着部２２に連なる隣接部２３となっている。樹脂部材２０が金属部材１０に溶着されていない状態において、隣接部２３の表面（金属部材１０と対向する面）は、溶着部２２の表面と面一状に連続する平面状をなしている。   Of the surface 21 of the resin member 20 facing the metal member 10, a region corresponding to the rough surface region 13 is a welded portion 22 that is heated to a temperature equal to or higher than the melting point of the resin member 20 in the welding step. In a state where the resin member 20 is not welded to the metal member 10, the surface of the welded portion 22 (surface facing the metal member 10) is planar. Of the surface 21 of the resin member 20 that faces the metal member 10, a frame-like region that surrounds the welded portion 22 over the entire circumference is an adjacent portion 23 that continues to the welded portion 22. In a state where the resin member 20 is not welded to the metal member 10, the surface of the adjacent portion 23 (surface facing the metal member 10) has a planar shape that is flush with the surface of the welded portion 22.

樹脂部材２０における金属部材１０との対向面２１のうち、隣接部２３を全周に亘って包囲する枠状領域には、対向面２１を溝状に凹ませた形態の逃がし凹部２４が形成されている。尚、図１〜３において、逃がし凹部２４の大きさは、樹脂部材２０の厚さ寸法に比べて、誇張して描いている。逃がし凹部２４は隣接部２３の外周縁に隣接しており、隣接部２３の外周面は逃がし凹部２４内に臨んでいる。つまり、隣接部２３の外周部が逃がし凹部２４を区画している。   Of the opposing surface 21 of the resin member 20 facing the metal member 10, an escape recess 24 is formed in a frame-like region surrounding the adjacent portion 23 over the entire circumference. ing. 1 to 3, the size of the relief recess 24 is exaggerated as compared with the thickness dimension of the resin member 20. The escape recess 24 is adjacent to the outer peripheral edge of the adjacent portion 23, and the outer peripheral surface of the adjacent portion 23 faces the escape recess 24. That is, the outer peripheral portion of the adjacent portion 23 escapes and defines the concave portion 24.

逃がし凹部２４の内面のうち、隣接部２３の外周面に対し溶着部２２とは反対側（外周縁側）から対向する領域は、第１抑止面２５ａ（請求項に記載の変形抑制部）となっている。また、逃がし凹部２４の内面のうち金属部材１０と対向する領域（逃がし凹部２４の奥端面）は、第２抑止面２５ｂ（請求項に記載の変形抑制部）となっている。第２抑止面２５ｂは、隣接部２３の外周面に対しては鋭角をなし、第１抑止面２５ａに対しては鈍角をなしている。   Of the inner surface of the escape recess 24, a region facing the outer peripheral surface of the adjacent portion 23 from the side opposite to the welded portion 22 (outer peripheral edge side) is a first suppression surface 25 a (deformation suppression portion described in claims). ing. Moreover, the area | region (back end surface of the escape recessed part 24) which opposes the metal member 10 among the inner surfaces of the escape recessed part 24 is the 2nd suppression surface 25b (deformation suppression part as described in a claim). The second suppression surface 25b forms an acute angle with respect to the outer peripheral surface of the adjacent portion 23, and forms an obtuse angle with respect to the first suppression surface 25a.

樹脂部材２０の外周縁部（逃がし凹部２４の外周縁に沿った枠状領域）は、逃がし凹部２４を全周に亘って包囲する位置決め部２６となっている。尚、図１〜〜３において、位置決め部２６の大きさは、樹脂部材２０の厚さ寸法に比べて、誇張して描いている。位置決め部２６は、金属部材１０に向かってリブ状に突出した形態である。位置決め部２６と隣接部２３は、逃がし凹部２４を介して離間している。つまり、位置決め部２６は逃がし凹部２４を区画している。位置決め部２６の内周面は、上記第１抑止面２５ａとなっている。   The outer peripheral edge of the resin member 20 (a frame-like region along the outer peripheral edge of the escape recess 24) is a positioning portion 26 that surrounds the escape recess 24 over the entire circumference. 1 to 3, the size of the positioning portion 26 is exaggerated as compared with the thickness dimension of the resin member 20. The positioning portion 26 has a form protruding in a rib shape toward the metal member 10. The positioning portion 26 and the adjacent portion 23 are separated from each other via the escape recess 24. That is, the positioning portion 26 defines the escape recess 24. The inner peripheral surface of the positioning portion 26 is the first suppression surface 25a.

位置決め部２６のうち金属部材１０と対向する面は、平面状の突当面２７となっている。突当面２７は、金属部材１０と樹脂部材２０を接合した状態において、金属部材１０の接合面１１（受圧領域１２）と平行をなす。図１に示すように、突当面２７は、溶着前における溶着部２２及び隣接部２３の表面２９に比べると、金属部材１０の接合面１１から退避した位置に設定されている。突当面２７は、第１抑止面２５ａに対しほぼ直角に繋がっている。   A surface of the positioning portion 26 that faces the metal member 10 is a flat abutting surface 27. The abutting surface 27 is parallel to the joint surface 11 (pressure receiving region 12) of the metal member 10 in a state where the metal member 10 and the resin member 20 are joined. As shown in FIG. 1, the abutting surface 27 is set at a position retracted from the joint surface 11 of the metal member 10 as compared with the surface 29 of the welded portion 22 and the adjacent portion 23 before welding. The abutting surface 27 is connected to the first restraining surface 25a at a substantially right angle.

突当面２７には、板状をなす断熱部材２８が固着されている。断熱部材２８は、熱伝導率が金属部材１０及び樹脂部材２０よりも低い材料からなる。断熱部材２８は、樹脂部材２０と同等又はそれよりも高い剛性を有している。また、断熱部材２８の耐熱温度（断熱部材２８が変形せずに形状を保つことのできる許容温度）は、樹脂部材２０よりも高く、溶着過程における金属部材１０の最高到達温度よりも高い。   A plate-like heat insulating member 28 is fixed to the abutting surface 27. The heat insulating member 28 is made of a material whose thermal conductivity is lower than that of the metal member 10 and the resin member 20. The heat insulating member 28 has rigidity equal to or higher than that of the resin member 20. Moreover, the heat-resistant temperature of the heat insulating member 28 (allowable temperature at which the heat insulating member 28 can keep its shape without deformation) is higher than that of the resin member 20 and higher than the highest temperature reached by the metal member 10 in the welding process.

次に、接合体Ａの製造工程を説明する。製造に際しては、図１に示すように、金属部材１０の下向きの接合面１１に対し、下方から樹脂部材２０を当接させる。このとき、溶着部２２を粗面領域１３に面当たり状態で当接させるとともに、隣接部２３を受圧領域１２に面当たり状態で当接させる。また、溝状の逃がし凹部２４の開口部は受圧領域１２と対向し、位置決め部２６（断熱部材２８）は、受圧領域１２に対し所定の間隔を空けて対向する。   Next, the manufacturing process of the joined body A will be described. In manufacturing, as shown in FIG. 1, the resin member 20 is brought into contact with the downward bonding surface 11 of the metal member 10 from below. At this time, the welded portion 22 is brought into contact with the rough surface region 13 in a surface contact state, and the adjacent portion 23 is brought into contact with the pressure receiving region 12 in a surface contact state. Further, the opening of the groove-shaped escape recess 24 faces the pressure receiving region 12, and the positioning portion 26 (heat insulating member 28) faces the pressure receiving region 12 with a predetermined interval.

この状態で、金属部材１０の上方（つまり、樹脂部材２０とは反対側）からレーザー光３０を照射するとともに、金属部材１０と樹脂部材２０を互いに密着するように加圧する。レーザー光３０の照射により、樹脂部材２０の溶着部２２の表面２９が、樹脂部材２０の融点より高い温度まで加熱される。このとき、隣接部２３の表面２９も、レーザー光３０によって直接、加熱される。しかし、位置決め部２６は、溶着部２２及び隣接部２３の表面２９よりも後退した位置（金属部材１０から遠い位置）にあるので、レーザー光３０によって直接、加熱されることはない。したがって、樹脂部材２０のうち第１抑止面２５ａ及び第２抑止面２５ｂを含む領域は、表面２９よりも低い温度に保たれる。   In this state, the laser beam 30 is irradiated from above the metal member 10 (that is, the side opposite to the resin member 20), and the metal member 10 and the resin member 20 are pressurized so as to be in close contact with each other. By irradiation with the laser beam 30, the surface 29 of the welded portion 22 of the resin member 20 is heated to a temperature higher than the melting point of the resin member 20. At this time, the surface 29 of the adjacent portion 23 is also directly heated by the laser beam 30. However, the positioning portion 26 is not heated directly by the laser beam 30 because it is in a position (a position far from the metal member 10) that is retreated from the surface 29 of the welded portion 22 and the adjacent portion 23. Accordingly, the region of the resin member 20 including the first suppression surface 25 a and the second suppression surface 25 b is kept at a temperature lower than that of the surface 29.

溶着部２２は、加熱されながら加圧されて粗面領域１３に押圧されるので、溶着部２２の一部が凹部１４内に押し込まれていく。同時に、溶着部２２のうち凹部１４に入り込まない部分は、接合面１１に強く押し付けられるので、その反力が、溶着部２２の外周縁に連なる隣接部２３に作用する。すると、図２に示すように、隣接部２３が、接合面１１に沿うように（接合面１１と略平行に）外周側に向かって膨らみながら変形する。尚、図２において、隣接部２３の変形量は、樹脂部材２０の厚さ寸法に比べて、誇張して描いている。   Since the weld portion 22 is pressed while being heated and pressed against the rough surface region 13, a part of the weld portion 22 is pushed into the recess 14. At the same time, the portion of the welded portion 22 that does not enter the recess 14 is strongly pressed against the joint surface 11, so that the reaction force acts on the adjacent portion 23 that continues to the outer peripheral edge of the welded portion 22. Then, as shown in FIG. 2, the adjacent portion 23 is deformed while expanding toward the outer peripheral side along the joining surface 11 (substantially parallel to the joining surface 11). In FIG. 2, the deformation amount of the adjacent portion 23 is exaggerated as compared with the thickness dimension of the resin member 20.

膨らむように変形した隣接部２３は、逃がし凹部２４の内部に収容される。この逃がし凹部２４の内面は、隣接部２３の外周面と対向する第１抑止面２５ａと、隣接部２３の外周面と鋭角に連なる第２抑止面２５ｂとを有している。したがって、膨らむように変形した隣接部２３の外周面は、第１抑止面２５ａと第２抑止面２５ｂに当接し、この当接作用により、隣接部２３の外周側（溶着部２２とは反対側）への変位（膨らみ）が抑制される。隣接部２３の外周側への膨らみが抑制されると、溶着部２２で生じた反力は、溶着部２２を凹部１４内に押し込む力として有効に作用する。したがって、凹部１４内には、溶着部２２が殆ど隙間なく深く入り込み、強いアンカー効果が得られる。   The adjacent portion 23 deformed so as to swell is accommodated in the escape recess 24. The inner surface of the escape recess 24 includes a first suppression surface 25 a that faces the outer peripheral surface of the adjacent portion 23, and a second suppression surface 25 b that is continuous with the outer peripheral surface of the adjacent portion 23 at an acute angle. Therefore, the outer peripheral surface of the adjacent portion 23 deformed so as to swell is in contact with the first deterrence surface 25a and the second deterrence surface 25b, and by this abutment action, the outer peripheral side of the adjacent portion 23 (the side opposite to the welded portion 22) ) Is suppressed. When the swelling of the adjacent portion 23 to the outer peripheral side is suppressed, the reaction force generated in the welded portion 22 effectively acts as a force for pushing the welded portion 22 into the recess 14. Therefore, the welded portion 22 enters deeply into the recess 14 with almost no gap, and a strong anchor effect is obtained.

溶着工程が進むと図３に示すように、位置決め部２６の突当面２７に設けた断熱部材２８が、金属部材１０の受圧領域１２に当接する。つまり、位置決め部２６が断熱部材２８を介して金属部材１０の受圧領域１２に突き当たる。位置決め部２６は、溶着部２２に比べて温度が低いので、金属部材１０の受圧領域１２に押し付けられても、殆ど変形を生じない。これにより、位置決め部２６が断熱部材２８を介して金属部材１０に突き当たると、加圧方向（接合方向）において、金属部材１０と樹脂部材２０の位置が、適正な位置関係に定められる。そして、溶着部２２と隣接部２３の変形が停止する。   As the welding process proceeds, as shown in FIG. 3, the heat insulating member 28 provided on the abutting surface 27 of the positioning portion 26 contacts the pressure receiving region 12 of the metal member 10. That is, the positioning portion 26 abuts against the pressure receiving region 12 of the metal member 10 via the heat insulating member 28. Since the positioning portion 26 has a lower temperature than the welded portion 22, even when pressed against the pressure receiving region 12 of the metal member 10, the positioning portion 26 hardly deforms. Thereby, when the positioning part 26 hits the metal member 10 via the heat insulating member 28, the positions of the metal member 10 and the resin member 20 are determined in an appropriate positional relationship in the pressurizing direction (joining direction). And the deformation | transformation of the welding part 22 and the adjacent part 23 stops.

つまり、金属部材１０（粗面領域１３）に対する溶着部２２の押し付けが、適正より不足したり、適正よりも過度になったりすることがなく、適正となる。したがって、溶着部２２や隣接部２３を含む樹脂部材２０全体が不正な変形を生じることもない。また、位置決め部２６が金属部材１０に突き当たる時点では、溶着部２２が凹部１４内に適正に充填されている。以上により、溶着工程が終了し、金属部材１０と樹脂部材２０の接合（即ち、接合体Ａの製造）が完了する。   That is, the pressing of the welded portion 22 against the metal member 10 (rough surface region 13) is appropriate without being insufficient or excessive than appropriate. Accordingly, the entire resin member 20 including the welded portion 22 and the adjacent portion 23 is not distorted. Further, when the positioning portion 26 abuts against the metal member 10, the welded portion 22 is properly filled in the concave portion 14. By the above, a welding process is complete | finished and joining (namely, manufacture of the joined body A) of the metal member 10 and the resin member 20 is completed.

上述のように本実施例の接合体Ａは、金属部材１０と、金属部材１０に溶着により接合された樹脂部材２０と、金属部材１０における樹脂部材２０との接合面１１に形成され、凹部１４を有する粗面領域１３と、樹脂部材２０に形成され、溶着過程において加圧されることにより変形しながら粗面領域１３に溶着された溶着部２２と、樹脂部材２０における粗面領域１３と非対応の領域に形成され、金属部材１０に突き当たることで溶着完了時における金属部材１０と樹脂部材２０との位置関係を規定する位置決め部２６とを備えている。   As described above, the joined body A of this embodiment is formed on the joint surface 11 of the metal member 10, the resin member 20 joined to the metal member 10 by welding, and the resin member 20 in the metal member 10. A rough surface region 13 having a surface, a welded portion 22 formed in the resin member 20 and welded to the rough surface region 13 while being deformed by being pressurized in the welding process, and the rough surface region 13 in the resin member 20 and the non-surface region 13. A positioning portion 26 is provided which is formed in a corresponding region and defines the positional relationship between the metal member 10 and the resin member 20 when the welding is completed by abutting against the metal member 10.

このように本実施例の接合体Ａは、成形済みの樹脂部材２０を金属部材１０に溶着によって接合するので、溶融樹脂を射出成形するための大掛かりな金型設備が不要である。したがって、製造コストを低減することができる。また、溶着過程において、加圧された溶着部２２が粗面領域１３に対して過剰に押し付けられた場合や、粗面領域１３に対する溶着部２２の押し付けが不足した場合には、溶着完了時に溶着部２２と粗面領域１３との溶着状態が不良となることが懸念される。しかし、本実施例１によれば、溶着工程において、位置決め部２６が金属部材１０に突き当たるまで樹脂部材２０を金属部材１０に接近させるようにすれば、溶着完了時には、樹脂部材２０と金属部材１０を適正な位置関係で位置決めすることができる。これにより、粗面領域１３に対して溶着部２２を適正に溶着することができる。   Thus, since the joined body A of the present embodiment joins the molded resin member 20 to the metal member 10 by welding, a large-scale mold facility for injection molding of the molten resin is unnecessary. Therefore, the manufacturing cost can be reduced. Further, in the welding process, when the pressurized welded portion 22 is excessively pressed against the rough surface region 13 or when the welded portion 22 is insufficiently pressed against the rough surface region 13, the welding is performed when the welding is completed. There is a concern that the welded state between the portion 22 and the rough surface region 13 becomes defective. However, according to the first embodiment, in the welding process, if the resin member 20 is brought close to the metal member 10 until the positioning portion 26 abuts against the metal member 10, the resin member 20 and the metal member 10 are completed when the welding is completed. Can be positioned in an appropriate positional relationship. Thereby, the welding part 22 can be appropriately welded to the rough surface region 13.

また、位置決め部２６における金属部材１０への突当面２７には断熱部材２８が配されているので、溶着工程で金属部材１０が加熱されていても、金属部材１０から位置決め部２６への伝熱が抑制される。これにより、位置決め部２６の加熱に起因する変形が防止される。したがって、位置決め部２６による位置決め機能の信頼性に優れている。   Further, since the heat insulating member 28 is disposed on the abutting surface 27 of the positioning portion 26 against the metal member 10, heat transfer from the metal member 10 to the positioning portion 26 is performed even when the metal member 10 is heated in the welding process. Is suppressed. Thereby, the deformation | transformation resulting from the heating of the positioning part 26 is prevented. Therefore, the positioning function by the positioning unit 26 is excellent in reliability.

また、本実施例１の接合体Ａは、樹脂部材２０のうち溶着部２２に連なり、且つ金属部材１０と対向するように配された隣接部２３と、溶着過程で隣接部２３が粗面領域１３から遠ざかるように変形することを抑制する第１抑止面２５ａ及び第２抑止面２５ｂとを備えている。この構成の技術的意義は、次の通りである。   Further, the joined body A of the first embodiment includes an adjacent portion 23 that is connected to the welded portion 22 of the resin member 20 and is disposed so as to face the metal member 10, and the adjacent portion 23 is a rough surface region in the welding process. 13 is provided with the 1st suppression surface 25a and the 2nd suppression surface 25b which suppress that it deform | transforms away from 13. As shown in FIG. The technical significance of this configuration is as follows.

溶着過程では、加圧された溶着部２２が粗面領域１３に押し付けられるのに伴い、溶着部２２に連なる隣接部２３が粗面領域１３から遠ざかるように変形しようとする。もし隣接部２３が変形すると、その分、粗面領域１３に対する溶着部２２の押し付け力が低下するため、溶着部２２と粗面領域１３との溶着状態が不良となることが懸念される。しかし、隣接部２３の変形を第１抑止面２５ａ及び第２抑止面２５ｂで抑制しているので、粗面領域１３に対する溶着部２２の押し付け力が保たれ、溶着部２２と粗面領域１３とを良好に密着させることができる。   In the welding process, as the pressurized welded portion 22 is pressed against the rough surface region 13, the adjacent portion 23 connected to the welded portion 22 tends to deform away from the rough surface region 13. If the adjacent portion 23 is deformed, the pressing force of the welded portion 22 against the rough surface region 13 is reduced correspondingly, and there is a concern that the welded state between the welded portion 22 and the rough surface region 13 becomes poor. However, since the deformation | transformation of the adjacent part 23 is suppressed by the 1st suppression surface 25a and the 2nd suppression surface 25b, the pressing force of the welding part 22 with respect to the rough surface area | region 13 is maintained, and the welding part 22 and the rough surface area | region 13 and Can be satisfactorily adhered.

また、第１抑止面２５ａと第２抑止面２５ｂは、金属部材１０にではなく、樹脂部材２０に形成されているので、金属部材１０の形状を簡素化することができる。また、第１抑止面２５ａ（隣接部２３の不正な変形を抑制するための変形抑制部の一部）は、位置決め部２６に形成されている。つまり、位置決め部２６が第１抑止面２５ａを構成している。この構成によれば、位置決め部と変形抑制部を互いに独立した形態で形成する場合に比べると、樹脂部材の形状を簡素化することができる。   Moreover, since the 1st suppression surface 25a and the 2nd suppression surface 25b are formed in the resin member 20 instead of the metal member 10, the shape of the metal member 10 can be simplified. Further, the first restraining surface 25 a (a part of the deformation restraining part for restraining unauthorized deformation of the adjacent part 23) is formed in the positioning part 26. That is, the positioning part 26 constitutes the first suppression surface 25a. According to this structure, compared with the case where a positioning part and a deformation | transformation suppression part are formed in the mutually independent form, the shape of a resin member can be simplified.

また、溶着工程においては、溶着部２２がレーザー光３０の照射によって加熱されている。レーザー光３０を用いれば、溶着部２２を集中的に加熱できるので、加熱に要する時間を短縮できる。また、樹脂部材２０のうち第１抑止面２５ａの形成領域（位置決め部２６）及び第２抑止面２５ｂの形成は、殆ど加熱させずに済むので、第１抑止面２５ａ、第２抑止面２５ｂ及び位置決め部２６が、加熱を原因として変形する虞がない。   In the welding process, the welded portion 22 is heated by the irradiation of the laser beam 30. If the laser beam 30 is used, the welding part 22 can be heated intensively, so that the time required for heating can be shortened. In addition, since the formation region of the first deterrence surface 25a (positioning portion 26) and the formation of the second deterrence surface 25b of the resin member 20 can be hardly heated, the first deterrence surface 25a, the second deterrence surface 25b, There is no possibility that the positioning portion 26 is deformed due to heating.

＜他の実施例＞
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
（１）上記実施例では、位置決め部に断熱部材を設けたが、位置決め部に断熱部材を設けない形態としてもよい。
（２）上記実施例では、位置決め部が変形抑制部としての機能を兼ね備えているが、位置決め部は、変形抑制部としての機能を有しなくてもよい。
（３）上記実施例では、位置決め部を樹脂部材の外周縁に沿うように形成したが、位置決め部は、樹脂部材の外周縁とは異なる位置に形成したもよい。
（４）上記実施例では、位置決め部が金属部材に向かって突出する突起状をなしているが、金属部材や樹脂部材の形状によっては、位置決め部が突起状以外の形状（例えば、段差状）であってもよい。
（５）上記実施例では、変形抑制部を樹脂部材のみに形成したが、変形抑制部は、金属部材のみに形成してもよく、樹脂部材と金属部材の両方に形成してもよい。
（６）上記実施例では、レーザー光によって溶着部を加熱したが、発熱体を樹脂部材の近傍に配置して溶着部を加熱してもよく、高周波（マイクロ波）を用いた誘電加熱により溶着部を加熱してもよく、発熱体を金属部材に接触させて金属部材を介して溶着部を加熱してもよい。
（７）上記実施例では、粗面領域が、接合面に凹部を形成した形態であるが、粗面領域は、接合面に複数の凸部を形態した形態でもよく、複数の凹部と複数の凸部を混在させた形態であってもよい。
（８）上記実施例では、金属部材を板状としたが、金属部材はブロック状であってもよい。
（９）上記実施例では、樹脂部材を板状としたが、樹脂部材はブロック状であってもよい。
（１０）上記実施例では、樹脂部材における金属部材との対向面の面積を、金属部材の全面積より小さくしたが、樹脂部材の面積は、金属部材と同じでもよく、金属部材より大きくてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the said Example, although the heat insulation member was provided in the positioning part, it is good also as a form which does not provide a heat insulation member in a positioning part.
(2) In the above embodiment, the positioning unit also has a function as a deformation suppressing unit, but the positioning unit may not have a function as a deformation suppressing unit.
(3) In the said Example, although the positioning part was formed so that the outer periphery of a resin member might be met, you may form the positioning part in the position different from the outer periphery of a resin member.
(4) In the above embodiment, the positioning portion has a protruding shape that protrudes toward the metal member. However, depending on the shape of the metal member or the resin member, the positioning portion has a shape other than the protruding shape (for example, a step shape) It may be.
(5) In the said Example, although the deformation | transformation suppression part was formed only in the resin member, the deformation | transformation suppression part may be formed only in a metal member, and may be formed in both a resin member and a metal member.
(6) In the above embodiment, the welded portion is heated by the laser beam. However, the welded portion may be heated by placing a heating element in the vicinity of the resin member, or welded by dielectric heating using a high frequency (microwave). The heating part may be heated, or the heating part may be brought into contact with the metal member to heat the welded part via the metal member.
(7) In the above-described embodiment, the rough surface region has a form in which concave portions are formed on the joint surface, but the rough surface region may have a form in which a plurality of convex portions are formed on the joint surface. The form which mixed the convex part may be sufficient.
(8) In the above embodiment, the metal member is plate-shaped, but the metal member may be block-shaped.
(9) In the above embodiment, the resin member is plate-shaped, but the resin member may be block-shaped.
(10) In the above embodiment, the area of the resin member facing the metal member is smaller than the total area of the metal member, but the area of the resin member may be the same as the metal member or larger than the metal member. Good.

Ａ…接合体
１０…金属部材
１１…接合面
１３…粗面領域
１４…凹部
２０…樹脂部材
２２…溶着部
２３…隣接部
２５ａ…第１抑止面（変形抑制部）
２５ｂ…第２抑止面（変形抑制部）
２６…位置決め部
２７…突当面
２８…断熱部材
３０…レーザー光 DESCRIPTION OF SYMBOLS A ... Bonded body 10 ... Metal member 11 ... Joining surface 13 ... Rough surface area 14 ... Recess 20 ... Resin member 22 ... Welding part 23 ... Adjacent part 25a ... 1st suppression surface (deformation suppression part)
25b ... 2nd suppression surface (deformation suppression part)
26 ... Positioning part 27 ... Abutting surface 28 ... Heat insulation member 30 ... Laser beam

Claims (7)

金属部材と、
前記金属部材に溶着により接合された樹脂部材と、
前記金属部材における前記樹脂部材との接合面に形成され、凹部又は凸部を有する粗面領域と、
前記樹脂部材に形成され、溶着過程において加圧されることにより変形しながら前記粗面領域に溶着された溶着部と、
前記樹脂部材における前記粗面領域と非対応の領域に形成され、前記金属部材に突き当たることで溶着完了時における前記金属部材と前記樹脂部材との位置関係を規定する位置決め部とを備えていることを特徴とする金属と樹脂の接合体。 A metal member;
A resin member joined to the metal member by welding;
A rough surface region formed on the joint surface of the metal member with the resin member, and having a recess or a protrusion,
A weld portion formed on the resin member and welded to the rough surface region while being deformed by being pressurized in the welding process;
A positioning portion that is formed in a region that does not correspond to the rough surface region of the resin member, and that defines a positional relationship between the metal member and the resin member when the welding is completed by abutting against the metal member; A metal / resin bonded body. 前記位置決め部における前記金属部材への突当面には、断熱部材が配されていることを特徴とする請求項１記載の金属と樹脂の接合体。   The metal / resin bonded body according to claim 1, wherein a heat insulating member is disposed on a contact surface of the positioning portion against the metal member. 前記樹脂部材のうち前記溶着部に連なり、且つ前記金属部材と対向するように配された隣接部と、
溶着過程で前記隣接部が前記粗面領域から遠ざかるように変形することを抑制する変形抑制部とを備えていることを特徴とする請求項１又は請求項２記載の金属と樹脂の接合体。 Of the resin member, adjacent to the welded portion and arranged to face the metal member,
The metal / resin bonded body according to claim 1, further comprising a deformation suppressing portion that suppresses deformation of the adjacent portion away from the rough surface region in a welding process. 前記変形抑制部が、前記樹脂部材に一体に形成されていることを特徴とする請求項３記載の金属と樹脂の接合体。   The metal / resin bonded body according to claim 3, wherein the deformation suppressing portion is formed integrally with the resin member. 前記変形抑制部の一部が前記位置決め部に形成されていることを特徴とする請求項４記載の金属と樹脂の接合体。   The metal / resin bonded body according to claim 4, wherein a part of the deformation suppressing portion is formed in the positioning portion. 溶着工程において、前記溶着部がレーザー光の照射によって加熱されていることを特徴とする請求項１ないし請求項５のいずれか１項記載の金属と樹脂の接合体。   6. The metal / resin bonded body according to any one of claims 1 to 5, wherein, in the welding step, the welded portion is heated by laser light irradiation. 金属部材と樹脂部材とを接合する方法であって、
前記金属部材における前記樹脂部材との接合面に、凹部又は凸部を有する粗面領域を形成し、
前記樹脂部材における前記粗面領域と非対応の領域に位置決め部を形成した上で、
溶着過程では、前記樹脂部材の溶着部を加圧して変形させながら前記粗面領域に溶着し、
溶着完了時には、前記位置決め部を前記金属部材に突き当てることで、前記金属部材と前記樹脂部材との位置関係を規定することを特徴とする金属と樹脂の接合方法。 A method of joining a metal member and a resin member,
Forming a rough surface area having a concave or convex portion on the joint surface of the metal member with the resin member,
After forming a positioning part in the region not corresponding to the rough surface region in the resin member,
In the welding process, the welded portion of the resin member is welded to the rough surface region while being deformed by pressing,
A metal-resin joining method characterized by defining a positional relationship between the metal member and the resin member by abutting the positioning portion against the metal member upon completion of welding.
JP2015059358A 2015-03-23 2015-03-23 Joined body of metal and resin, and joining method therefor Pending JP2016175389A (en)

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