JPWO2020230200A1 - 接合用金属部材及び接合体 - Google Patents
接合用金属部材及び接合体 Download PDFInfo
- Publication number
- JPWO2020230200A1 JPWO2020230200A1 JP2021519043A JP2021519043A JPWO2020230200A1 JP WO2020230200 A1 JPWO2020230200 A1 JP WO2020230200A1 JP 2021519043 A JP2021519043 A JP 2021519043A JP 2021519043 A JP2021519043 A JP 2021519043A JP WO2020230200 A1 JPWO2020230200 A1 JP WO2020230200A1
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- JP
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- Prior art keywords
- joining
- resin
- metal member
- laser
- uneven portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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- 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
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
- B29C66/7394—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 thermoset
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
- B29C66/7422—Aluminium or alloys of aluminium
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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
- B29C66/70—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
- B29C66/7428—Transition metals or their alloys
- B29C66/74281—Copper or alloys of copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
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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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/009—Using laser
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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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
- B29C37/0082—Mechanical anchoring
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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- 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
- B29C65/0672—Spin welding
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Abstract
Description
<1> 平滑部と凹凸部とを一の面に有し、
前記平滑部の表面を基準面としたときに、前記凹凸部が、前記基準面よりも低い位置まで到達する複数の窪みと、前記基準面よりも高い位置まで突出する複数の突起とを有し、
前記基準面から前記窪みの底部までの深さAの平均値と、前記基準面から前記突起の頂部までの高さBの平均値との比(B/A)が、0.3〜3である接合用金属部材。
<2> 前記深さAの平均値が、100μm〜1.5mmである<1>に記載の接合用金属部材。
<3> <1>又は<2>に記載の接合用金属部材と、
前記接合用金属部材における前記平滑部と前記凹凸部とを有する面と接合する樹脂部材と、を有する接合体。
本開示中に段階的に記載されている数値範囲において、一つの数値範囲で記載された上限値又は下限値は、他の段階的な記載の数値範囲の上限値又は下限値に置き換えてもよい。また、本開示中に記載されている数値範囲において、その数値範囲の上限値又は下限値は、実施例に示されている値に置き換えてもよい。
本開示において、各成分には、該当する物質が複数種含まれていてもよい。組成物中に各成分に該当する物質が複数種存在する場合、各成分の含有率又は含有量は、特に断らない限り、組成物中に存在する当該複数種の物質の合計の含有率又は含有量を意味する。
本開示において、各成分に該当する粒子には、複数種の粒子が含まれていてもよい。組成物中に各成分に該当する粒子が複数種存在する場合、各成分の粒子径は、特に断らない限り、組成物中に存在する当該複数種の粒子の混合物についての値を意味する。
本開示において「(メタ)アクリル」はアクリル及びメタクリルの少なくとも一方を意味する。
本開示の接合用金属部材は、平滑部と凹凸部とを一の面に有し、前記平滑部の表面を基準面としたときに、前記凹凸部が、前記基準面よりも低い位置まで到達する複数の窪みと、前記基準面よりも高い位置まで突出する複数の突起とを有し、前記基準面から前記窪みの底部までの深さAの平均値と、前記基準面から前記突起の頂部までの高さBの平均値との比(B/A)が、0.3〜3とされたものである。
接合用金属部材の比(B/A)を0.3〜3とすることで、凹凸部に存在する基準面よりも高い位置まで突出した突起の数を十分に確保できる。そのため、接合用金属部材における凹凸部に樹脂部材を構成する樹脂が含浸する際に、樹脂が基準面よりも下まで到達しなくとも、基準面よりも高い位置まで突出した突起に樹脂がからみつきやすくなる。その結果、十分なアンカー効果が得られ、接合用金属部材と樹脂部材とが強固に接合することができるためと推察される。
なお、以下の実施形態では、接合用金属部材の一例として、金属部材の表面にレーザー光を照射して凹凸部を設けることで形成された接合用金属部材に基づいて、本開示の接合用金属部材を説明する。ただし、接合用金属部材を構成する材料、接合用金属部材の製造方法等は、特に限定されるものではない。
図2は、接合用金属部材の他の実施形態における凹凸部の拡大断面写真を示し、後述の実施例1におけるアルミニウム製試験片の凹凸部の電子顕微鏡写真の一例に該当する。
図2には、接合用金属部材における平滑部と凹凸部とを有する面の全体に延長された基準面が、点線で表されている。併せて、図2には、基準面と平行し突起14の頂部(最も高い位置)に接する面B、及び、基準面と平行し窪み16の底部(最も深い位置)に接する面Aが、各々点線で表されている。
本開示において、基準面から突起の頂部までの高さBとは、図2に示すように、基準面と直交する断面を観察したときに、基準面と、基準面と平行し突起14の頂部に接する面Bと、の間の距離をいう。
本開示において、深さAの平均値とは、上述のようにして求められた5個の窪みについての深さの算術平均値をいう。また、高さBの平均値とは、上述のようにして求められた5個の突起についての高さの算術平均値をいう。
断面の観察画像の倍率は特に限定されるものではなく、少なくとも5個の、窪み及び突起が一画像中に含まれる程度の倍率であってもよい。また、複数の観察画像から、少なくとも5つの、窪みの深さ及び突起の高さを求めてもよい。
比(B/A)の平均値が0.3以上であれば、凹凸部に存在する複数の突起が基準面よりも高い位置まで突出した状態を確保しやすく、突起に樹脂がからみつきやすい傾向にある。なお、比(B/A)の平均値が3を超える値とするのは、困難な場合がある。
窪み16の深さAの平均値は、100μm〜1.5mmであることが好ましく、100μm〜1mmであることがより好ましく、100μm〜500μmであることがさらに好ましい。
突起14の高さBの平均値は、50μm〜1mmであることが好ましく、70μm〜500μmであることがより好ましく、90μm〜200μmであることがさらに好ましい。
深さAの平均値と高さBの平均値との合計の値は、150μm〜2.5mmであることが好ましく、170μm〜1.5mmであることがより好ましく、190μm〜700μmであることがさらに好ましい。
凹凸部12における突起14の密度は、5個/mm2〜50個/mm2であることが好ましく、10個/mm2〜30個/mm2であることがより好ましく、10個/mm2〜25個/mm2であることがさらに好ましい。
接合用金属部材における平滑部と凹凸部とを有する面には、メッキ処理、アルマイト処理等の表面処理を施してもよい。
接合用金属部材の凹凸部を有する面は、平面であってもよい。
なお、下記各種条件は、接合用金属部材を構成する金属の種類、突起の高さ、窪みの深さ等に鑑みて適宜設定されるものである。
CWレーザーの照射速度としては、100mm/sec〜2000mm/secであることが好ましい。
CWレーザーの照射速度が100mm/sec以上であれば、金属部材の加工速度を速めることができる傾向にある。CWレーザーの照射速度が2000mm/sec以下であれば、比(B/A)を0.3〜3の範囲としやすく、樹脂部材との接合強度がより向上する傾向にある。
例えば、CWレーザーを用いる場合、レーザー出力は300W〜2000Wであることが好ましい。
CWレーザーのレーザー出力が300W以上であれば、CWレーザーの照射速度を速めやすくなり、金属部材の加工速度を速めることができる傾向にある。CWレーザーのレーザー出力が2000W以下であれば、レーザー光の照射設備を小型化できる傾向にある。
例えば、レーザーのスポット径としては、10μm〜50μmであることが好ましい。
変調CWレーザーの周波数としては、1000Hz〜10000Hzであることが好ましい。
変調CWレーザーにおいて、レーザー出力の最大値を100としたときのレーザー出力の最小値は、30以上100未満であることが好ましく、50〜95であることがより好ましく、80〜90であることがさらに好ましい。
また、レーザー光を一度照射された箇所に、レーザー光を繰り返し照射してもよい。レーザー光を繰り返して照射する場合、繰り返しの回数としては、1回〜40回であることが好ましい。
レーザーとしては、グリーンレーザーであってもよい。
本開示の接合体は、本開示の接合用金属部材と、前記接合用金属部材における前記平滑部と前記凹凸部とを有する面と接合する樹脂部材と、を有する。
本開示の接合体では、樹脂部材が、接合用金属部材における平滑部と凹凸部とを有する面と接合するため、接合用金属部材と樹脂部材との接合強度に優れる。
樹脂としては、熱硬化性樹脂、熱可塑性樹脂、エラストマー等が挙げられる。
熱可塑性樹脂の具体例としては、ポリイミド樹脂、ポリアミドイミド樹脂、ポリアミド樹脂、ポリエーテルイミド樹脂、ポリベンゾオキサゾール樹脂、ポリベンゾイミダゾール樹脂、ポリスチレン樹脂、アクリロニトリル・ブタジエン・スチレン共重合樹脂、アクリロニトリル・スチレン共重合樹脂、ポリエチレン樹脂、ポリプロピレン樹脂、ポリ塩化ビニル樹脂、ポリ塩化ビニリデン樹脂、ポリカーボネート樹脂、(メタ)アクリル樹脂、ポリエステル樹脂、ポリアセタール樹脂、ポリフェニレンスルフィド樹脂等が挙げられる。
エラストマーの具体例としては、シリコーンゴム、スチレンブタジエンゴム(SBR)、ニトリルゴム(NBR)、ウレタンゴム等が挙げられる。
さらに、凹凸部の設けられた接合用金属部材と樹脂部材とを接触させて、超音波溶着、振動溶着、誘導溶着、高周波溶着、レーザー溶着、熱溶着、スピン溶着等により接合用金属部材と樹脂部材とを接合してもよい。
また、樹脂部材の接合用金属部材と接合する箇所を加熱して軟化させた後に、樹脂部材と接合用金属部材とを加圧しながら接触させることで、接合用金属部材と樹脂部材とを接合してもよい。
凹凸部における突起の変形を防いで接合強度を向上する観点から、接合体はインサート成形法により製造されたものであることが好ましい。
樹脂部材の成分として熱硬化性樹脂を用いる場合、上記方法により接合用金属部材と樹脂部材とを接合した後、加熱処理することで樹脂部材を硬化してもよい。
試験片100に、ファイバーレーザー(株式会社アマダミヤチ製 ML6811C(CWレーザー))を用いて、凹凸部102を下記条件で形成した。凹凸部102の幅は、1.2mmとした。
図1、図2及び図4から明らかなように、実施例1、2及び3の各試験片の凹凸部は、基準面よりも低い位置まで到達する複数の窪みと、基準面よりも高い位置まで突出する複数の突起とを有していることが分かる。
なお、各試験片の電子顕微鏡写真の撮影は、日本電子株式会社製のJSM−IT100を用い、20kVの加速電圧で行った。
実施例2の銅製試験片の凹凸部における、比(B/A)の値を上述のようにして求めたところ、0.5であった。また、深さAの平均値は220μmであった。
実施例3の黄銅製試験片の凹凸部における、比(B/A)の値を上述のようにして求めたところ、0.9であった。また、深さAの平均値は120μmであった。
比較例1のアルミニウム製試験片の凹凸部における、比(B/A)の値を上述のようにして求めたところ、0.2であった。また、深さAの平均値は190μmであった。
樹脂部を形成した各試験片を用いて、下記方法により接合強度を評価した。なお、接合強度評価用の試験片を、実施例及び比較例毎に5つ準備した。
株式会社島津製作所製AG−5kNISを用いて、試験速度5mm/minで引張試験を行い、5つの接合体についての接合強度を求めその平均値を算出した。
実施例1のアルミニウム製試験片についての接合強度の平均値は、17.8MPaであった。
実施例2の銅製試験片についての接合強度の平均値は、14.7MPaであった。
実施例3の黄銅製試験片についての接合強度の平均値は、22.4MPaであった。
比較例1のアルミニウム製試験片についての接合強度の平均値は、0MPaであった。
12 凹凸部
14 突起
16 窪み
100 試験片
102 凹凸部
104 樹脂部
Claims (3)
- 平滑部と凹凸部とを一の面に有し、
前記平滑部の表面を基準面としたときに、前記凹凸部が、前記基準面よりも低い位置まで到達する複数の窪みと、前記基準面よりも高い位置まで突出する複数の突起とを有し、
前記基準面から前記窪みの底部までの深さAの平均値と、前記基準面から前記突起の頂部までの高さBの平均値との比(B/A)が、0.3〜3である接合用金属部材。 - 前記深さAの平均値が、100μm〜1.5mmである請求項1に記載の接合用金属部材。
- 請求項1又は請求項2に記載の接合用金属部材と、
前記接合用金属部材における前記平滑部と前記凹凸部とを有する面と接合する樹脂部材と、を有する接合体。
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