Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Effect of Laser Welding Variables on the Formability of Si Added Steel Welds

3wt% Si 첨가강의 레이저용접부 성형성에 미치는 용접변수의 영향

  • Published : 2006.08.01
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Abstract

The aim of present study is to investigate the effect of welding parameters and heat treatment conditions on the formability of the $CO_2$ laser welded silicon steel sheet. It was found that there is optimum range of the heat input ($0.6{\sim}0.7kJ/cm$) and gap distance ($0.125{\sim}0.150mm$) for the high tensile strength and the avoidance of the fracture in weld metal. Also, it was essential fur the improvement of formability to perform pre- and post-welding heat treatment which cause the uniform mixture of base metal and welding consumable.

Keywords

References

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