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Materials and Manufacturing Processes Volume 24, 2009 - Issue 4
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Original Articles

Effect of Laser Welding Variables on the Formability of 3 wt% Si-Added Steel Welds

Joon Sik Park POSCO Technical Research Laboratory, Pohang, South KoreaCorrespondence[email protected]
&
Kyoung Mook Lim Korea Institute of Industrial Technology, Korea
Pages 431-437 | Received 31 Mar 2008, Accepted 04 Jul 2008, Published online: 26 Feb 2009
 
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Abstract

The aim of present study is to investigate the effect of welding variables and heat treatment conditions on the formability of the laser welded silicon steel sheet. It was found that there is an optimum range of heat input and gap distance for improvement of tensile strength and the avoidance of fracture in weld metal. Also, good formability was obtained by proper adoption of the pre- and post-weld heat treatment conditions.

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