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

2 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

Fingerprint

Metal foil
Finite element method

Keywords

  • Blanking
  • FEM
  • Negative clearance
  • Rounded tool edge

ASJC Scopus subject areas

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

Cite this

@article{e31c116cfc76446584e0f0a78a5bcd82,
title = "FEM analysis on the influence of rounded tool edge on micro-blanking of thin foil with negative clearance",
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.",
keywords = "Blanking, FEM, Negative clearance, Rounded tool edge",
author = "Song, {Shin Hyung} and Choi, {Woo Chun}",
year = "2015",
month = "6",
day = "10",
doi = "10.1007/s12541-015-0142-x",
language = "English",
volume = "16",
pages = "1101--1105",
journal = "International Journal of Precision Engineering and Manufacturing",
issn = "1229-8557",
publisher = "Korean Society of Precision Engineering",
number = "6",

}

TY - JOUR

T1 - FEM analysis on the influence of rounded tool edge on micro-blanking of thin foil with negative clearance

AU - Song, Shin Hyung

AU - Choi, Woo Chun

PY - 2015/6/10

Y1 - 2015/6/10

N2 - 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.

AB - 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.

KW - Blanking

KW - FEM

KW - Negative clearance

KW - Rounded tool edge

UR - http://www.scopus.com/inward/record.url?scp=84930948049&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930948049&partnerID=8YFLogxK

U2 - 10.1007/s12541-015-0142-x

DO - 10.1007/s12541-015-0142-x

M3 - Article

AN - SCOPUS:84930948049

VL - 16

SP - 1101

EP - 1105

JO - International Journal of Precision Engineering and Manufacturing

JF - International Journal of Precision Engineering and Manufacturing

SN - 1229-8557

IS - 6

ER -