- 알루미늄합금의 열간 액압성형법 성형성에 대한 가열조건의 영향도 분석
- ㆍ 저자명
- 김봉준,박광수,류종수,손성만,문영훈,Kim. Bong-Joon,Park. Kwang-Su,Ryu. Jong-Soo,Son. Sung-Man,Moon. Young-Hoon
- ㆍ 간행물명
- 열처리공학회지
- ㆍ 권/호정보
- 2005년|18권 3호|pp.172-176 (5 pages)
- ㆍ 발행정보
- 한국열처리공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Modern automobiles are built with a steadily increasing variety of materials and semifinished products. The traditional composition of steel sheet and cast iron is being replaced with other materials such as aluminum and magnesium. But low formability of these materials has prevented the application of the automotive components. The formability can be enhanced by conducting the warm hydroforming using induction heating device which can raise the temperature of the specimen very quickly. The specimen applied to the test is A6061, A7075 extruded tubes which belong to the age-hardenable aluminum alloys. But in the case of A6061 age hardening occurs at room temperature or at elevated temperatures before and after the forming process. In this study the effects of the heating condition such as heating time, preset temperature, holding time during die closing and forming time on the hydroformability are analyzed to evaluate the phenomena such as dynamic strain hardening and ageing hardening at high temperatures after the hydroforming process.