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중첩된 구리 판재의 전기저항가열 표면마찰 점용접(RSFSW)에 관한 연구

A Study on Electric Resistance Heated Surface Friction Spot Welding Process of Overlapped Copper Sheets

  • 투고 : 2020.08.27
  • 심사 : 2020.09.30
  • 발행 : 2021.02.28

초록

Copper sheets has been used widely in electric and electron industry fields because they have good electric and heat conduction property of the material. And, in order to bond copper material, a kind of soldering process is generally used. But, because it is difficult to bond by soldering between overlapped thin copper sheets, so, another kind of brazing bonding process can be used in that case. But, because the brazing process needs wide bonding area, it needs heat treatment process in electric furnace. Generally, for spot welding of sheets, a conventional electric Resistance Spot Welding process(RSW) has been used, it has welding characteristics using contact resistance heating induced by electric current flow between sheets. But, because copper sheets has the low electric resistance, it is difficult to weld by electric resistance spot welding. So, in this study, an electric Resistance heated Surface Friction Spot Welding process(RSFSW) is suggested and is testified for the spot welding ability of thin copper sheets. It is known from the experimental results and simulation that the suggested spot welding process will be able to improve the spot welding ability of copper sheets by the combined three kinds of heating generated by surface friction by rotating pin, and conducted from heated steel electrode, and generated by contact resistance of electricity.

키워드

과제정보

이 논문은 부경대학교 자율창의 학술연구비(2019년)에 의하여 연구되었음

참고문헌

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