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	Study on narrow gap laser welding of 42CrMo steel bevel gear shaft
	Yang WX(杨武雄) ; Xiao RS(肖荣诗)
	2012-04-13 ; 2012-04-13
中文摘要	The manufacture of heavy type bevel gear shafts is generally machined separately, and then jointed by welding. Aimed to the joining of quenched and tempered 42CrMo bevel gear shafts for heavy-duty machine, a 3500 W Slab CO 2 laser was applied and narrow gap laser welding process was adopted with filler wire of TGS-2CM, at the same time, the performance and metallographic structure of the joint were studied. The experimental results demonstrate that there are no cracks in the joint even without preheating and post-weld heat treatment when the appropriate processing parameters are used. The microstructure of the weld bead and heat-affected zone is fine bainite. The micro-hardness of fusion area is about HV0.1530, and no apparent softened zone exists in the welding joint. The average tensile strength value of the joint is 1020 MPa, equivalent to that of the base material, which is satisfied with the service demand. Currently, the actual welding products were already used in industry.
原文出处	http://dlib.edu.cnki.net/kns50/download.aspx?filename=Z1EUIF3bGBDdjl1blR1Zvh2KUh3c2UTcRFEZZpmevNUNO1GaYpES4VXOoV0VuNGaDFmWz5UQTF1TuVlchZ1U3Q1ZNhWaUFHMr40VHxETqRjYBhzZWlUdCt0YR9kdQN2LyIGc3dFdrpVZhZHaZR3Uk52caFzLIhFc&tablename=CJFD2009&dflag=pdfdown 全文链接
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/16921]
专题	北京工业大学
推荐引用方式 GB/T 7714	Yang WX,Xiao RS. Study on narrow gap laser welding of 42CrMo steel bevel gear shaft[J],2012, 2012.
APA	杨武雄,&肖荣诗.(2012).Study on narrow gap laser welding of 42CrMo steel bevel gear shaft..
MLA	杨武雄,et al."Study on narrow gap laser welding of 42CrMo steel bevel gear shaft".(2012).

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