Development of a combination punch speed and blank-holder fuzzy control system for the deep-drawing process

Kenichi Manabe, Hiroshi Koyama, Shoichiro Yoshihara, Tetsuya Yagami

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

To improve the productivity and formability of sheet metal having strain rate sensitivity, a new control system using a combination punch speed and blank-holder fuzzy control for the deep-drawing process is proposed. The control algorithm is based on an alternate switch mode system of both blank-holding force (BHF) and punch speed (SPD) control. A newly developed deep-drawing apparatus with the novel control system achieved on-line simultaneous fuzzy control on both BHF and SPD during the process. The experimental results for a steel sheet show that higher speed deep drawing can be successful at the SPD over 150mm/min, at which fracture occurred under constant SPD condition. In addition, it was confirmed that the new combination of SPD and BHF fuzzy control system increased high performance productivity with 25% forming time reduction. Cup wall thickness distribution was also improved and deep drawability, beyond that for a constant SPD.

Original languageEnglish
Pages (from-to)440-445
Number of pages6
JournalJournal of Materials Processing Technology
Volume125-126
DOIs
Publication statusPublished - 2002 Sep 9

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Keywords

  • Combination punch speed and BHF control
  • Deep drawing
  • Fuzzy inference
  • Sheet metal forming
  • Strain rate-dependent material

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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