FEM analysis on the influence of rounded tool edge on micro-blanking of thin foil with negative clearance

Shin Hyung Song, Woo Chun Choi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This work studies the effects of the tool edge radius in a micro-blanking process with negative clearance by using finite element method. For the study, a simulation model of blanking of AL6061-T6 foil with tools (punch and die) having a large edge radius comparable to the thickness of the foil was prepared. Using the model, micro-blanking process with various tool edge radii are simulated to study the resultant blanking forces and blank quality. From the simulation studies, it is found that a large edge radius of a blanking punch have effect on the blanking forces. Especially, a projecting edge was observed at the edge of the finished blank. This projecting edge is considered to be caused by negative clearance and a large edge radius of a die. Overall summary and discussion on the effect of a rounded tool edge on the blanking force and blank deformation is presented.

Original languageEnglish
Pages (from-to)1101-1105
Number of pages5
JournalInternational Journal of Precision Engineering and Manufacturing
Volume16
Issue number6
DOIs
Publication statusPublished - 2015 Jun 10

Keywords

  • Blanking
  • FEM
  • Negative clearance
  • Rounded tool edge

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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