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논문 기본 정보

자료유형
학술저널
저자정보
남선호 (한국생산기술연구원) 강봉용 (한국생산기술연구원) 박민우 (웰메이트) 박성진 (신영) 심지연 (한국생산기술연구원)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第39卷 第6號
발행연도
2021.12
수록면
597 - 602 (6page)

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초록· 키워드

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Automobile manufacturers have recently focused their research on the concurrent improvement of fuel efficiency and stability. To implement lightweight body structures, the joining of dissimilar materials, such as advanced high-strength steel (AHSS) and carbon fiber-reinforced polymer (CFRP), is the most important, whereas fusion welding, which is the conventional welding process, is inapplicable owing to the difference in mechanical properties between materials. Thus, the development of an appropriate dissimilar material joining process is of utmost importance, considering productivity and safety.
Self-piercing riveting (SPR), a representative lightweight material joining process, has no limitation in terms of applicable materials and has the advantage of improved joint strength. However, as the requirements on the mechanical properties of materials in the industry are continuously increasing, there is a need to further develop the process. Therefore, this study introduces the electromagnetic self-piercing riveting(E-SPR), a joining process that uses high electrical energy to discharge the high electrical energy charged in the capacitor to the working coil located in the head of the C-frame. In particular, this process enables high-quality joining parts to be secured by improving the formability of a material with poor formability under a high strain rate. Consequently, a simple piece of E-SPR equipment was manufactured, and an Al/Steel and Al/CFRP joint was further fabricated. The results of a preliminary test reported a quality equal to or higher than that of the previously reported SPR joint. Based on these research results, further studies on processes and equipment for commercialization will be conducted in the future.

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Abstract
1. 서론
2. E-SPR 원리 및 장치
3. E-SPR을 이용한 이종소재 접합
4. 결론
References

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