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Evaluation of Formability and Mechanical Characteristic for Hot Forming Quenching in Sheet Forming of Al6061 Alloy

Al6061 판재성형에서 핫 포밍 ��칭의 성형성 및 기계적 특성 평가

  • Ko, Dae Hoon (Precision Manufacturing System Division, Pusan Nat'l Univ.) ;
  • Kim, Jae Hong (Precision Manufacturing System Division, Pusan Nat'l Univ.) ;
  • Lee, Chan Joo (Dongnam Regional Division, Korea Institute of Industrial Technology) ;
  • Ko, Dae Cheol (Industrial Liaison Innovation Center, Pusan Nat'l Univ.) ;
  • Kim, Byung Min (Dept. of Mechanical Engineering, Pusan Nat'l Univ.)
  • 고대훈 (부산대학교 정밀가공시스템) ;
  • 김재홍 (부산대학교 정밀가공시스템) ;
  • 이찬주 (부산대학교 IFAM 국제공동연구소) ;
  • 고대철 (부산대학교 부품소재산학협력연구소) ;
  • 김병민 (부산대학교 기계공학부)
  • Received : 2012.08.22
  • Accepted : 2012.12.05
  • Published : 2013.04.01

Abstract

In aluminum sheet metal forming, the conventional forming methods of T4 or T6 heat-treated sheets result in low formability and dimensional accuracy. This study suggests a new forming method for aluminum sheets called as hot forming quenching (HFQ) that solves the problems faced in the conventional method. HFQ combines the heat treatment and forming processes through the forming die during the quenching of a solid solution. To evaluate the application of HFQ to the sheet forming of aluminum, an Erichsen and V-bending test are performed in this study to measure the dimensional accuracy and formability, which are then compared with those of the conventional forming method. Furthermore, the strength and hardness of the products formed by HFQ are measured to confirm the degradation in mechanical properties compared with the conventional forming method, which shows the validity of the application of HFQ to aluminum sheet metal forming.

Keywords

Hot Forming Quenching;Solid Solution Heat Treatment;Erichsen Test;V-bending Test;Formability

Acknowledgement

Supported by : 한국산업기술재단, 한국연구재단

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