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JWJ > Volume 24(4); 2006 > Article
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Journal of KWJS 2006 August;24(4)
:15-21.
Published online October 16, 2006.
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| Effect of Laser Welding Variables on the Formability of Si Added Steel Welds |
| Joon-Sik Park, In-Su Woo, Jong-Bong Lee |
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Correspondence:
Published online October 16, 2006
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The aim of present study is to investigate the effect of welding parameters and heat treatment conditions on the formability of the CO2 laser welded silicon steel sheet. It was found that there is optimum range of the heat input (0.6~0.7kJ/cm) and gap distance (0.125~0.150mm) for the high tensile strength and the avoidance of the fracture in weld metal. Also, it was essential for the improvement of formability to perform pre- and post-welding heat treatment which cause the uniform mixture of base metal and welding consumable. |
| Keywords:
Si steel;Laser welding;Pre-welding heat treatment;Post-welding heat treatment;Formability;Crack
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