Experimental approach on stress–strain analysis of weldment in Ti-TWBs at elevated temperatures

Document Type

Journal Article

Publication Date

2009

Keywords

Tailor-welded blanks, Titanium, Weldment, Stress–strain behavior

DOI

10.1007/s00170-008-1372-1

Abstract

This paper aims at presenting an experimental investigation of the mechanical properties of the weldment in titanium tailor-welded blanks (Ti-TWBs) at different elevated temperatures. High-contrast image patterns were laser-marked on the surface of Ti-TWB weldment. During the transverse tensile test of Ti-TWB, the images of weldment deformations and their corresponding applied loads were captured simultaneously by a dual-image vision system. After the image processing, the true stress–strain data of the weldment were evaluated successfully. Also, the stress–strain behaviors of the weldment for Ti-TWBs at different elevated temperatures were measured by heating up the specimens to specified temperatures (300°C, 500°C, and 600°C) using an induction coil specially connected to the induction furnace. Finally, the results show that, similar to the "as received" titanium sheets, increase in temperature enhances the ductility of the weldment favorably, thus reducing the required load for the related metal working.

Source Publication

The International Journal of Advanced Manufacturing Technology

Volume Number

40

Issue Number

5

ISSN

0268-3768

First Page

470

Last Page

477

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