지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.6
- 수록면
- 289 - 294 (6page)
이용수
초록· 키워드
오류제보하기
Despite increasing industrial demand, typical fusion welding of aluminum and copper joints remains difficult due to the formation of intermetallic compounds. Therefore, ultrasonic welding, which is a type of solid-state welding, is used for combining aluminum and oxygen-free copper. It has a low dependence on the materials and can secure large bonding joints in a short duration. However, indentations formed due to the vibration and pressure of ultrasonic welding greatly impact joint quality by affecting joint strength and fracture location.
This study investigated the formation of indentations in accordance with welding variables, and proposed a theoretical estimation of fracture strength in ultrasonic welded joints of aluminum and oxygen-free copper. Since the fracture occurred along the indentation boundary in aluminum substrate-which has lower strength than copper-failure strength increased with increasing indentation depth in the copper plate. Average fracture strength was 65% of the tensile strength of base materials due to the stress concentrated around the indentation. Therefore, product design needs to consider base material strength and fracture propagation path before deciding on a safety factor.
This study investigated the formation of indentations in accordance with welding variables, and proposed a theoretical estimation of fracture strength in ultrasonic welded joints of aluminum and oxygen-free copper. Since the fracture occurred along the indentation boundary in aluminum substrate-which has lower strength than copper-failure strength increased with increasing indentation depth in the copper plate. Average fracture strength was 65% of the tensile strength of base materials due to the stress concentrated around the indentation. Therefore, product design needs to consider base material strength and fracture propagation path before deciding on a safety factor.
목차
Abstract
1. Introduction
2. Experimental Method
3. Experimental results and discussion
4. Conclusions
References
참고문헌 (13)
참고문헌 신청
S. Chu / 2012 / Opportunities and challenges for a sustainable energy future / nature 488(7411):294
S. S. Lee / 2010 / Joining technologies for automotive lithium-ion battery manufacturing: A review / ASME 2010 international manufacturing science and engineering conference :541~549
A. Das / 2018 / Joining Technologies for Automotive Battery Systems Manufacturing / World Electric Vehicle J. 9(2):22
M. Sahin / 2010 / Joining of aluminium and copper materials with friction welding / Int. J. adv. Manuf. Technol 49(5-8):527~534
C. Tan / 2013 / Microstructural evolution and mechanical properties of dissimilar Al-Cu joints produced by friction stir welding / Mater. Des 51:466~473
S. S. Lee / 2010 / Joining technologies for automotive lithium-ion battery manufacturing: A review / ASME 2010 international manufacturing science and engineering conference :541~549
A. Das / 2018 / Joining Technologies for Automotive Battery Systems Manufacturing / World Electric Vehicle J. 9(2):22
M. Sahin / 2010 / Joining of aluminium and copper materials with friction welding / Int. J. adv. Manuf. Technol 49(5-8):527~534
C. Tan / 2013 / Microstructural evolution and mechanical properties of dissimilar Al-Cu joints produced by friction stir welding / Mater. Des 51:466~473
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UCI(KEPA) : I410-ECN-0101-2020-581-000842262