Research status of forming cracking of automobile girder steel
The defects such as bending cracking,welding cracking and rolling cracking are easy to appear in the form-ing process of automobile girder steel,which leads to the decrease of the utilization rate of girder steel and the de-crease of economic benefit of enterprises.This has attracted the attention of researchers,and a lot of research work has been carried out on the causes of molding cracking of automobile girder steel.In this paper,the factors of form-ing cracking of automobile girder steel are summarized in detail from the aspects of component segregation,large scale inclusion,abnormal structure and hot rolling process,and the solutions are put forward respectively.Finally,the production prospect of automobile girder steel is prospected.
automobile girder steelforming crackingresearch status
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