JP2016129942A - 接合構造体の製造方法および接合構造体 - Google Patents
接合構造体の製造方法および接合構造体 Download PDFInfo
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- JP2016129942A JP2016129942A JP2015004010A JP2015004010A JP2016129942A JP 2016129942 A JP2016129942 A JP 2016129942A JP 2015004010 A JP2015004010 A JP 2015004010A JP 2015004010 A JP2015004010 A JP 2015004010A JP 2016129942 A JP2016129942 A JP 2016129942A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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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
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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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Abstract
【解決手段】この接合構造体100の製造方法は、金属部材10の表面13に開口を有する穿孔部11を形成する工程と、穿孔部11を形成した後に、金属部材10に表面改質を行う工程と、表面改質された金属部材10と樹脂部材20とを接合する工程とを備える。
【選択図】図1
Description
まず、図1〜図3を参照して、本実施形態による接合構造体100の全体構成について説明する。
金属部材10の表面13に形成された穿孔部11は、予めレーザ加工処理、ブラスト処理、サンドペーパ処理、陽極酸化処理、放電加工処理、エッチング処理、または、プレス加工処理などにより形成されている。
レーザ照射にて穿孔部11が形成される過程においては、金属部材10の表面13は少なからず改質層が形成された状態を呈している。ただし、レーザ照射は穿孔部11を形成するのが目的であり、金属部材10の表面13に一様に均一な改質層を形成するには至っていない。さらには、特に穿孔部11と穿孔部11との間隔が広い場合などでは、穿孔部11と穿孔部11との間隙部でレーザ照射による改質層の形成が一層不均一、もしくは、改質層が形成されていない状態となる。
上記のように、樹脂部材20は、穿孔部11が形成された金属部材10の表面13に接合されている。この樹脂部材20は、たとえば、レーザ接合、射出成形接合、熱プレス接合、注型硬化、超音波溶着、または、振動溶着によって金属部材10に接合されている。これにより、樹脂部材20が穿孔部11に充填された状態で固化されている。
レーザ接合では、金属部材10と樹脂部材20とを治具などで加圧して面接触させた後に、レーザ照射を行う。レーザ照射は、樹脂部材20側(レーザ透過性を有する場合のみ)、および/または、金属部材10側から照射する。なお、接合用のレーザの種類としては、ファイバレーザ、YAGレーザ、YVO4レーザ、半導体レーザ、炭酸ガスレーザ、または、エキシマレーザが選択できる。
レーザ:半導体レーザ(波長808nm)
発振モード:連続発振
出力:30W
焦点径:4mm
走査速度:1mm/sec
密着圧力:0.6MPa
射出成形接合では、金属部材10を射出成型金型にインサートして、樹脂部材20と射出成型にて接合した。金属部材10の材料として、SUS304を用いる。金属部材10は、板状に形成されており、長さが100mmであり、幅が29mmであり、厚みが3mmである。
予備乾燥:120℃×5時間
金型温度:120℃
シリンダ温度:270℃
保圧:100MPa
熱プレス接合では、予め加熱調整されたプレス機の下型に金属部材10を設置し、金属部材10の接合面に樹脂部材20の接合面を対面して設置した状態でプレスして接合する。金属部材10の材料として、SUS304を用いる。金属部材10は、板状に形成されており、長さが100mmであり、幅が29mmであり、厚みが3mmである。
下型温度:330℃(金属部材を設置する側)
上型温度:100℃(樹脂部材を設置する側)
プレス圧力:2.0MPa
プレス時間:60秒
次に、図1〜図3を参照して、本実施形態による接合構造体100の製造方法について説明する。
次に、図4および図5を参照して、上記した本実施形態の効果を確認するために行った実験例1〜3について説明する。
この実験例1では、本実施形態に対応する実施例A1、A2、A3およびA4による接合構造体500(図5参照)と、比較例Aによる接合構造体とを作製し、それぞれについての接合評価を行った。その結果を表1に示す。
この実験例2では、本実施形態に対応する実施例B1、B2、B3およびB4による接合構造体500(図5参照)と、比較例Bによる接合構造体とを作製し、それぞれについての接合評価を行った。その結果を表1に示す。
この実験例3では、本実施形態に対応する実施例C1、C2、C3およびC4による接合構造体500(図5参照)と、比較例Cによる接合構造体とを作製し、それぞれについての接合評価を行った。その結果を表3に示す。
なお、今回開示した実施形態は、すべての点で例示であって、限定的な解釈の根拠となるものではない。したがって、本発明の技術的範囲は、上記した実施形態のみによって解釈されるものではなく、特許請求の範囲の記載に基づいて画定される。また、本発明の技術的範囲には、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。
10a 改質層
11 穿孔部
12 突出部
13 表面
20 樹脂部材
100 接合構造体
500 接合構造体
501 金属部材
502 樹脂部材
Claims (5)
- 金属部材と樹脂部材とが接合された接合構造体の製造方法であって、
前記金属部材の表面に開口を有する穿孔部を形成する工程と、
前記穿孔部を形成した後に、前記金属部材に表面改質を行う工程と、
前記表面改質された金属部材と前記樹脂部材とを接合する工程とを備えることを特徴とする接合構造体の製造方法。 - 請求項1に記載の接合構造体の製造方法において、
前記金属部材に表面改質を行う工程は、プラズマ処理、コロナ処理、UVオゾン処理、または、レーザ処理のいずれかにより、前記金属部材の表面に酸化膜を形成する工程であることを特徴とする接合構造体の製造方法。 - 請求項1または2に記載の接合構造体の製造方法において、
前記表面改質された金属部材と前記樹脂部材とを接合する工程は、レーザ照射、射出成形、または、熱プレスのいずれかの工程であることを特徴とする接合構造体の製造方法。 - 請求項1〜3のいずれか1つに記載の接合構造体の製造方法において、
前記穿孔部を形成する工程は、1パルスが複数のサブパルスで構成されるレーザを照射することにより前記穿孔部を形成する工程であることを特徴とする接合構造体の製造方法。 - 請求項1〜4のいずれか1つに記載の接合構造体の製造方法によって製造されたことを特徴とする接合構造体。
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