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A Study on Improvement of Bending Quality of Hemmed Plates in Sheet Metal Forming

헤밍 (Hemming) 구조를 가진 박판의 굽힘품질 개선에 관한 연구

  • Kim, Pan Gun (Graduate School of Mechanical Engineering, Pusan National Univ.) ;
  • Park, Sang Hu (School of Mechanical Engineering, ERC/NSDM, Pusan National Univ.)
  • 김판근 (부산대학교 기계공학부 대학원) ;
  • 박상후 (부산대학교 기계공학부/정밀정형 및 금형가공연구소)
  • Received : 2012.03.16
  • Accepted : 2012.10.04
  • Published : 2012.12.01

Abstract

A bending process is considered as one of fundamental sheet metal forming processes, and it is widely used for fabrication of simple or complicated sheet metal products in industrial fields. Most of automobiles and electronics have many parts made by the bending process inside or outside of them. However, till now, there is few research reports on the bending process of hemmed plates. A hemmed plate has a locally different bending strength, so a waving shape occurs after bending. A poor outlook due to local uneven shape influences greatly on product competitiveness. To settle this problem, we studied the bending parameters of a hemmed plate and showed the major sensitive design-parameters on the bending quality.

Keywords

Acknowledgement

Supported by : 부산대학교

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  1. Numerical Evaluation of Hemming Defects Found on Automotive Door Panels vol.24, pp.4, 2015, https://doi.org/10.5228/KSTP.24.4.280