소성∙가공 (Transactions of Materials Processing)

  • 제26권2호
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  • Pages.101-107
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  • 2017
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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AA6061 판재의 핫 포밍 퀜칭 공정에서 성형온도가 스프링백에 미치는 영향

Effect of Forming Temperature on Spring-back in Hot Forming Quenching of AA6061 Sheet

  • 심인보 (부산대학교 기계공학부 정밀가공시스템 전공) ;
  • 김재홍 (부산대학교 기계공학부 정밀가공시스템 전공) ;
  • 김병민
  • 투고 : 2016.11.03
  • 심사 : 2017.01.20
  • 발행 : 2017.04.01
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초록

Aluminum alloys are widely used in automotive industry because of their high strength-to-density ratio and excellent corrosion resistance. However, conventional cold stamping of aluminum alloys leads to low formability and excessive spring-back. To overcome these problems, Hot Forming Quenching (HFQ) is applied to manufacture automotive part using aluminum alloy. The purpose of this study is to investigate effect of forming temperature on spring-back in HFQ of T6 heat treated AA6061 sheet. In this study, hat shape forming test was adopted to evaluate spring-back characteristics according to various forming temperatures. In additions, the test was also performed with warm forming conditions in comparison with dimensional accuracy of HFQed part. The experimental results showed that dimensional accuracy of HFQed part was superior to warm formed part and amount of spring-back was decreased as forming temperature rise.

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참고문헌

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