The formability of aluminum sheet in incremental forming

被引：191

作者：

Shim, MS ^{[1
]}

Park, JJ ^{[1
]}

机构：

[1] Hongik Univ, Dept Mech & Syst Design Engn, Mapo Ku, Seoul 121791, South Korea

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2001年 / 113卷 / 1-3期

关键词：

incremental forming; forming limit curve; strain-path dependence;

D O I：

10.1016/S0924-0136(01)00679-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In incremental forming, the sheet exhibits a unique pattern of the forming limit curve. In the present investigation, a forming tool containing a freely rotating ball was developed and used to characterize the formability of fully annealed Al 1050 sheer. Various strain paths were applied to the sheet by imposing different tool paths and the major and minor strains of deformed grids around cracks were measured. It was found that the formability of the sheet shows a distinct dependence on the strain path and appears as a straight line in the forming limit diagram. The most suitable forming limit curve for incremental forming was found to be the one that was obtained from a test in which straight paths, with an incremental increase of tool depth, were imposed using a square specimen with the fixed periphery. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：654 / 658

页数：5