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Improvement of Weld Quality Using a Weaving Beam in Laser Welding

Xudong ZHANG , Wuzhu CHEN , Gang BAO , Lin ZHAO

This paper describes a way to improve the weld quality through suppressing the porosity formation and restraining the growth of columnar grains by using a weaving beam in laser welding. The experimental results show that the N2 porosity of beam-weaving laser welding low carbon steel can be remarkabl...

关键词: Welding , null , null , null

Microstructures and Toughness of Weld Metal of Ultrafine Grained Ferritic Steel by Laser Welding

Xudong ZHANG , Wuzhu CHEN , Cheng WANG , Lin ZHAO , Yun PENG , Zhiling TIAN

材料科学技术（英文）

3 mm thick 400 MPa grade ultrafine grained ferritic steel plates were bead-on-plate welded by CO¬2 laser with heat input of 120~480 J/mm. The microstructures of the weld metal mainly consist of bainite, which form is lower bainite plates or polygonal ferrite containing quantities of dispersed cement...

关键词: Laser welding , null , null , null

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2011年1篇

刊物分类

材料研究学报1篇

材料期刊网

Improvement of Weld Quality Using a Weaving Beam in Laser Welding

Microstructures and Toughness of Weld Metal of Ultrafine Grained Ferritic Steel by Laser Welding

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