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논문 기본 정보

자료유형
학술저널
저자정보
Ju-Hee Jung (Yeungnam University) Dae-Woong Park (Yeungnam University) Eung-Ryul Baek (Yeungnam University)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第39卷 第6號
발행연도
2021.12
수록면
641 - 648 (8page)

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초록· 키워드

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The automobile industry is required to reduce the automotive exhaust emissions and enhance fuel efficiency by reducing the weight of the vehicle body (lightweight body) and increasing the strength of the vehicle. To manufacture a lightweight body, there have been numerous studies on Al/Fe dissimilar joining globally. However, the biggest problem of those studies was the formation of the Al-Fe intermetallic compound (IMC) layer, which broke the weld metal on the Al-Fe IMC layer. Therefore, in this study, Al/Fe dissimilar joining using gas metal arc welding using pure copper (Cu) filler metal was proposed to solve the aforementioned issues. As the travel speed increased 5 to 9 ㎜/s, the temperature gradient and crystal cooling rate increased. This made the Al-Cu Eutectic and Hypereutectic Zone to be narrow and dendrite α-Al Zone to be wide in the Al-based weld zone (Weld Zone Ⅱ). From the travel speed of 8 ㎜/s, the hardness at the Weld Zone Ⅱ is lower than the under the travel of 7 mm/s. The tensile test results for fracture was observed in the Al base metal.

목차

Abstract
1. Introduction
2. Materials and Methods
3. Results and discussion
4. Conclusion
References

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