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Optimization of Single Point Incremental Forming of Al5052-O Sheet

Al5052-O 판재의 최적 점진성형 연구

  • Kim, Chan Il (Institute of Mechanical Engineering Technology, Kyungpook Nat'l Univ.) ;
  • Xiao, Xiao (Dept. of Mechanical Engineering, Kyungpook Nat'l Univ.) ;
  • Do, Van Cuong (Dept. of Mechanical Engineering, Kyungpook Nat'l Univ.) ;
  • Kim, Young Suk (Dept. of Mechanical Engineering, Kyungpook Nat'l Univ.)
  • Received : 2016.07.19
  • Accepted : 2016.11.08
  • Published : 2017.03.01

Abstract

Single point incremental forming (SPIF) is a sheet-forming technique. It is a die-less sheet metal manufacturing process for rapid prototyping and small batch production. The Critical parameters in the forming process include tool diameter, step depth, feed rate, spindle speed, etc. In this study, these parameters and the die shape corresponding to the Varying Wall Angle Conical Frustum(VWACF) model were used for forming 0.8mm in thick Al5052-O sheets. The Taguchi method of Experiments of Design (DOE) and Grey relational optimization were used to determine the optimum parameters in SPIF. A response study was performed on formability, spring back, and thickness reduction. The research shows that the optimum combination of these parameters that yield best performance of SPIF is as follows: tool diameter, 6mm; spin speed, 60rpm; step depth, 0.3mm; and feed rate, 500mm/min.

Keywords

Incremental Forming;Taguchi Method;Grey Relational Optimization;Varying Wall Angle Conical Frustum(VWACF)

Acknowledgement

Supported by : 한국연구재단

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