Deakin University
Browse

File(s) under permanent embargo

A shape error metric for sheet metal forming and its application to springback

journal contribution
posted on 2003-08-01, 00:00 authored by Bernard RolfeBernard Rolfe, M Cardew-Hall, S Abdallah, G West
There are many variations within sheet metal forming, some of which are manifest in the final geometry of the formed component. It is important that this geometric variation be quantified and measured for use in a process or quality control system. The contribution of this paper is to propose a novel way of measuring the geometric difference between the desired shape and an actual formed "U" channel. The metric is based upon measuring errors in terms of the significant manufacturing variations. The metric accords with the manually measured errors of the channel set. The shape error metric is then extended to develop a simple empirical, whole-component, springback error measure. The springback error measure combines into one value all the angle springback and side wall curl geometric errors for a single channel. Two trends were observed: combined springback decreases when the blank holder force is increased; and the combined springback marginally decreases when the die radii is increased.

History

Journal

Journal of manufacturing science and engineering

Volume

125

Issue

3

Pagination

468 - 475

Publisher

ASME International

Location

New York, N.Y.

ISSN

1087-1357

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2003 ASME