Effect of lap-sheets on deep drawing of metallic foil cups

In order to improve the deep drawability of stainless-steel foil cups, foil-lap blanks in which thin sheet metals ( lap-sheets) were lapped over the foils were used in the deep-drawing operations. In the deep-drawing process, aluminum sheets were used as lap-sheets. The following three foil-lap blan...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials processing technology 2001-12, Vol.119 (1), p.48-51
Main Authors: Marumo, Y., Saiki, H., Onoue, A.
Format: Article
Language:English
Subjects:
Deep drawing
Drawability
Metal foil
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In order to improve the deep drawability of stainless-steel foil cups, foil-lap blanks in which thin sheet metals ( lap-sheets) were lapped over the foils were used in the deep-drawing operations. In the deep-drawing process, aluminum sheets were used as lap-sheets. The following three foil-lap blanks were used. B-sheet type: a two-ply foil-lap blank in which an aluminum sheet is on the blank holder side. D-sheet type: a two-ply foil-lap blank in which an aluminum sheet is on the die side. Sandwich type: a three-ply foil-lap blank in which a stainless-steel foil blank is sandwiched between two aluminum lap-sheets. In the D-sheet type, cracks on the foil cups were prevented by the lap-sheet on the die side. In the B-sheet type, wrinkles on the foil cups were prevented by the lap-sheet on the blank holder side. The deep drawability of stainless-steel foil cups was improved effectively when using lap-sheets. The thickness and the strain-hardening characteristics of aluminum lap-sheets influenced the deep drawability of foil cups.
ISSN:0924-0136
DOI:10.1016/S0924-0136(01)00896-2