Research on activating laser arc hybrid welding

doi:10.3901/JME.2014.22.063

	Research on activating laser arc hybrid welding
	Yin, Yan 1; Wang, Zhanchong 1; Zhang, Ruihua 1,2; Ta, Jinguo 1; Liu, Zhao 1
刊名	Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
	2014-11-20
卷号	50 期号:22 页码:63-68
关键词	Chemical activation Fiber lasers Laser beam welding Microstructure Oxygen Stainless steel Steel fibers Temperature distribution Tensile strength Bending experiments Hybrid welding Laser conditioning Laser-arc hybrid welding Microstructure and properties Surface tension gradient Temperature dependence Welding parameters
ISSN号	05776686
DOI	10.3901/JME.2014.22.063
英文摘要	In order to improve the penetration of laser arc hybrid welding, activating laser arc hybrid welding is proposed. The surface of weld is melted by the tiny laser power protected by oxygen; as a result, there is a layer of oxide on the surface. Then laser arc hybrid welding is used to cover the weld, which can increase the penetration. Results show that the penetration of laser arc hybrid welding is increased about twice. The formation of the weld surface is elegant. The content of oxygen will be increased when surface of weld is melted by laser. The temperature dependence of surface tension gradient can be changed from a negative value to a positive value by oxygen which can increase the penetration. The influence of welding parameters on the welding melts depth and the width is studied. Increasing the preheated power of laser conditioning can increase penetration and reduce the width. Increasing arc current can increase the width and depth of molten weld. The increase of welding speed can reduce the width and depth of molten weld.The increase laser power of hybrid welding can increase the weld penetration and have little influence on the width. Tiny microstructures of weld metal can be produced by activating laser arc hybrid welding, which can improve the tensile strength. The tensile strength of activating laser arc hybrid weld joint can reach 95% of base metal. No crack or defects are noticed on the surfaces during bending experiment, this observation confirms that the toughness of the weld joint is good. ©2014 Journal of Mechanical Engineering
语种	中文
出版者	Editorial Office of Chinese Journal of Mechanical Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113318]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou; 730050, China; 2.China Iron & Steel Research Institute Group, Beijing; 100081, China
推荐引用方式 GB/T 7714	Yin, Yan,Wang, Zhanchong,Zhang, Ruihua,et al. Research on activating laser arc hybrid welding[J]. Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,2014,50(22):63-68.
APA	Yin, Yan,Wang, Zhanchong,Zhang, Ruihua,Ta, Jinguo,&Liu, Zhao.(2014).Research on activating laser arc hybrid welding.Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,50(22),63-68.
MLA	Yin, Yan,et al."Research on activating laser arc hybrid welding".Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 50.22(2014):63-68.