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논문 기본 정보

자료유형
학술저널
저자정보
Ji-Yeon Shim (Korean Institute of Industrial Technology)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제22권 제12호
발행연도
2023.12
수록면
37 - 44 (8page)

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초록· 키워드

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Magnetic pulse welding (MPW) is an effective process for joining dissimilar materials because it uses only the electromagnetic force through the electromagnetic interaction between the working coil and the outer tube. In MPW, the electromagnetic force drives the outer tube to impact the inner tube, thereby achieving a successful solid-state metallurgical bonding. However, the outer tube, as a flyer workpiece, collides with the inner tube at a high velocity, leading to severe compressive deformation of the inner tube during welding. Nevertheless, improvement in the tubular joint quality by reducing the compressive deformation of the inner tube has not yet been achieved. Thus, the purpose of this study was to determine an appropriate way to reduce the compressive deformation of the inner tube through coil design. For this purpose, two types of working coils were designed, and the electromagnetic interaction between the working coil and the outer tube was analyzed by simulation. A uniform distribution of the electromagnetic force was achieved by employing a flat coil; however, this resulted in severe compressive deformation of the weldment. Nevertheless, a groove-shaped coil led to reduced compressive deformation by decreasing the continuous inner tube collapse.

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ABSTRACT
1. Introduction
2. Materials and methods
3. Results and discussion
4. Conclusion
References

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