Deep drawing of aluminium-steel tailor-welded blanks

被引：52

作者：

Padmanabhan, R. ^{[1
]}

Oliveira, M. C. ^{[1
]}

Menezes, L. F. ^{[1
]}

机构：

[1] Univ Coimbra, Dept Mech Engn, CEMUC, P-3030201 Coimbra, Portugal

来源：

MATERIALS & DESIGN | 2008年 / 29卷 / 01期

关键词：

Al-steel tailor-welded blanks; deep drawing; rule of mixture;

D O I：

10.1016/j.matdes.2006.11.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Aluminium and steel blank sheets can be welded together to produce tailor-welded blanks with strength mismatch. These tailor-welded blanks are applied in aerospace and automotive industries. In this investigation, finite element simulations were carried out using home code DD3IMP to determine the formability characteristics of aluminium-steel tailor-welded blanks. Aluminium (AA6016-T4) blank sheet was combined with a range of steel blank sheets namely, mild-steel (DC06) and high strength steels (AISI-1018, HSLA-340, and DP600) to form four different A1-steel tailor-welded models. Aluminium, being relatively weaker, has the tendency to flow more than steel. In particular, dual-phase steel offers the maximum resistance to flow and mild-steel offers lowest resistance. A segmented blank holder allows the application of different forces on aluminium and steel sheet segments in the tailor-welded blank. Different blank holder forces enhance the formability of tailor-welded blank as well as control the draw-in. The simulation results indicate that even with large dissimilarities in material properties, A1-steel tailor-welded blanks can produce superior deep drawn parts. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：154 / 160

页数：7

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