2020 Fiscal Year Final Research Report
Advanced mold condition control to elucidate the mechanism of injection molded direct joining
| Project/Area Number |
19K14859
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 18020:Manufacturing and production engineering-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Keywords | 異材接合 / 金属樹脂直接接合 / 射出成形 / 表面処理 / 接合メカニズム |
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| Outline of Final Research Achievements |
A surface fine-structured metal workpiece can be joined with an injection molded polymer component. The joining is formed in a mold during an injection molding process. This study investigated effects of an advanced control of a mold condition on a joining performance. First, the mold that can dynamically control temperature distribution was developed. Then the experiments were carried out by using the developed mold. The results showed; (1) dynamic temperature control can enhance joining strength and process efficiency; (2) temperature distribution control can enhance process efficiency; (3) the local temperature at the metal/polymer interface can be significantly important for the joining occurrence, which was derived from the distribution control.
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| Free Research Field |
異材接合
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| Academic Significance and Societal Importance of the Research Achievements |
本研究で取り扱った直接接合技術は，比較的新しい技術であり，厳密な接合メカニズムは未解明という問題はあるが，生産性の高さや自由度の高さから産業応用および将来の基盤技術となることが非常に期待されている．本研究で得られた成果は，接合特性の向上や生産プロセスの高効率化の指針となり，本接合技術の社会実装を進める上で必要不可欠なものになると考えられる．また，接合を発現する上で重要な要素を示唆できたことから，本研究で開発した技術は接合現象の解明を進める上で必要なツールになると考えられる．
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