Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Forming Accuracy Comparison Between Positive and Negative Incremental Forming Al 1050

AL1050 소재의 양·음각 점진성형 공법간 성형 정밀도 비교

  • Lee, Kyeong-Bu (Department of Advanced Engineering, Graduate School of Kyungnam Univ.) ;
  • Oh, Hyun-Man (Department of Advanced Engineering, Graduate School of Kyungnam Univ.) ;
  • Kang, Jae-Gwan (Division of Mechanical Engineering, Kyungnam Univ.)
  • Received : 2013.08.16
  • Accepted : 2013.10.08
  • Published : 2013.10.15
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Abstract

Incremental forming of sheet metal is a modern method of forming sheet metal, where parts can be formed without the use of dedicated dies. Existing experimental configurations for incremental forming can be broadly classified into two categories, i.e., negative and positive forming. In this paper, forming qualities such as shape accuracy and surface roughness of Al 1050 material were discussed for different forming methods. The formed and the corresponding opposing surfaces were measured with a three-dimensional scanner and a surface roughness tester. It was found that in terms of shape accuracy, the best opposing surface was obtained with positive forming, whereas the worst formed surface was obtained with negative forming; furthermore, the opposing surface is always better than the formed surface, regardless of the forming method used.

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References

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