JP7053109B2 - 異種素材接合体の製造方法および異種素材接合体 - Google Patents
異種素材接合体の製造方法および異種素材接合体 Download PDFInfo
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- JP7053109B2 JP7053109B2 JP2020570864A JP2020570864A JP7053109B2 JP 7053109 B2 JP7053109 B2 JP 7053109B2 JP 2020570864 A JP2020570864 A JP 2020570864A JP 2020570864 A JP2020570864 A JP 2020570864A JP 7053109 B2 JP7053109 B2 JP 7053109B2
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- resin layer
- less
- laser
- metal substrate
- etching groove
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Description
金属基材の用意
下記表1のような条件の2種類のパルスレーザを1.5mmの厚さのスチール(steel)基板の表面に互いに直交するように二重照射して格子構造となるようにエッチングした。レーザ照射により、エッチング溝と、エッチング時に発生する突出部とが前記エッチング溝の周辺部に沿って互いに連結されて、内部に空間を作る垣根の形態に形成された。
第1樹脂層として、915nmの波長における光透過率が約59%、光吸収率が約30%であり、厚さが約1.6mmであり、ガラス繊維(glass fiber)が約30重量%添加されたホモポリプロピレン樹脂層を用意した。また、第2樹脂層として、915nmの波長における光透過率が約72%、厚さが約3.2mmであるエチレン-プロピレンブロック共重合体樹脂(CB5230)基材を用意した。
第1樹脂層として、915nmの波長における光透過率が約35%、光吸収率が約50%であり、厚さが約3.2mmであり、ガラス繊維(glass fiber)が約30重量%添加されたホモポリプロピレン樹脂層を用意したことを除き、前記実施例1と同様の方法で異種素材接合体を製造した。
レーザ照射によりエッチング溝および突出部が備えられていないスチール基板(915nmの波長における光反射率が約52%)を用意し、第1樹脂層として、915nmの波長における光透過率が約35%、光吸収率が約50%であり、厚さが約1.6mmであり、ガラス繊維(glass fiber)が約30重量%添加されたホモポリプロピレン樹脂層を用意したことを除き、前記実施例1と同様の方法で異種素材接合体を製造した。
スチール基板の代わりに、915nmの波長における光反射率が約5%であるレーザ吸収用樹脂を用意したことを除き、前記比較例1と同様の方法で異種素材接合体を製造した。
第1樹脂層として、915nmの波長における光透過率が約72%、光吸収率が約15%であり、厚さが約1.6mmであるホモポリプロピレン樹脂層を用意し、第2樹脂層として、915nmの波長における光透過率が約35%、厚さが約3.2mmであり、ガラス繊維(glass fiber)が約30重量%添加されたホモポリプロピレン樹脂層を用意したことを除き、前記実施例1と同様の方法で異種素材接合体を製造した。
第1樹脂層として、915nmの波長における光透過率が約80%、光吸収率が約10%であり、厚さが約3.2mmであるホモポリプロピレン樹脂層を用意し、第2樹脂層として、915nmの波長における光透過率が約72%、厚さが約1.6mmであるホモポリプロピレン基材を用意したことを除き、前記実施例1と同様の方法で異種素材接合体を製造した。
前記実施例1および実施例2と比較例1~4で製造された異種素材接合体の両末端を(Zwick社、モデル:Z020)機器に固定し、これを用いて50mm/minの速度で剪断引張力を測定して接合強度を測定した。
20、20a、20b、20c、20d:突出部
30:表面領域
100:金属基材
210:第1樹脂層
220:第2樹脂層
300:レーザ吸収用樹脂
Claims (9)
- 一面上に2以上のエッチング溝と、前記エッチング溝に隣接して備えられた突出部とを含む金属基材を用意するステップと、
前記金属基材の一面上に第1樹脂層および第2樹脂層を順次に積層して、積層体を製造するステップと、
前記第2樹脂層の表面上にレーザを照射するステップと、を含み、
800nm以上1100nm以下のいずれか1つの波長に対して、前記第1樹脂層の光透過率は、20%以上70%以下であり、
800nm以上1100nm以下のいずれか1つの波長に対して、前記第1樹脂層の光透過率は、前記第2樹脂層の光透過率より小さく、
前記第1樹脂層と第2樹脂層とが融着して接合され、前記第1樹脂層が溶融して前記金属基材と前記第1樹脂層とが接合し、
800nm以上1100nm以下のいずれか1つの波長に対して、前記金属基材の一面の光反射率は、50%以下である、異種素材接合体の製造方法。 - 800nm以上1100nm以下のいずれか1つの波長に対して、前記第1樹脂層の光吸収率は、20%以上50%以下である、請求項1に記載の異種素材接合体の製造方法。
- 800nm以上1100nm以下のいずれか1つの波長に対して、前記第2樹脂層の光透過率は、50%以上80%以下である、請求項1または2に記載の異種素材接合体の製造方法。
- 前記第1樹脂層の厚さは、0.1mm以上5mm以下である、請求項1から3のいずれか一項に記載の異種素材接合体の製造方法。
- 前記レーザは、50W以上2,000W以下の出力のダイオードレーザである、請求項1から4のいずれか一項に記載の異種素材接合体の製造方法。
- 前記レーザは、100μm以上5,000μm以下のスポットサイズ、10mm/s以上1,000mm/s以下の照射速度、および3回以下の照射回数で照射される、請求項1から5のいずれか一項に記載の異種素材接合体の製造方法。
- 一面上に2以上のエッチング溝と、前記エッチング溝に隣接して備えられた突出部とを含む金属基材と、
前記金属基材の一面上に順次に積層される第1樹脂層および第2樹脂層と、を含み、
800nm以上1100nm以下のいずれか1つの波長に対して、前記第1樹脂層の光透過率は、20%以上70%以下であり、
800nm以上1100nm以下のいずれか1つの波長に対して、前記第1樹脂層の光透過率は、前記第2樹脂層の光透過率より小さく、
前記第1樹脂層と第2樹脂層とが融着して接合され、前記第1樹脂層が溶融して前記金属基材と前記第1樹脂層とが接合し、
800nm以上1100nm以下のいずれか1つの波長に対して、前記金属基材の一面の光反射率は、50%以下である、異種素材接合体。 - 前記第1樹脂層は、前記エッチング溝の内部、前記金属基材の表面と突出部との間に満たされて前記金属基材に接合された、請求項7に記載の異種素材接合体。
- 前記第1樹脂層の厚さは、0.1mm以上5mm以下である、請求項7または8に記載の異種素材接合体。
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DE102016215493A1 (de) * | 2016-08-18 | 2018-02-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Hybrider Werkstoffverbund zwischen einer Metalloberfläche und einer polymeren Materialoberfläche sowie Verfahren zur Herstellung des hybriden Werkstoffverbundes |
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JP2005041073A (ja) | 2003-07-28 | 2005-02-17 | Toyoda Mach Works Ltd | 樹脂材のレーザ溶着方法 |
JP2005088355A (ja) | 2003-09-17 | 2005-04-07 | Toyoda Mach Works Ltd | 樹脂材のレーザ溶着装置 |
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CN112351879B (zh) | 2022-11-08 |
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KR102631904B1 (ko) | 2024-01-31 |
CN112351879A (zh) | 2021-02-09 |
EP3797985A4 (en) | 2021-10-20 |
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