The fatigue behavior of cemented carbide die under service load in the multistage cold forging of steel was investigated. It was found that the fatigue cracks do not initiate at the stress concentration position and the crack initiation position can be classified to three types. The crack initiation position can be predicted by FEM only when the plastic deformation of the die is considered.
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机译:Einfluss der Randschichtverformung durch Kaltrollen und Kugelstrahlen auf die schwingfestigkeit der Titanlegierung der TLCIaLCL6V4(Cold Rolling and shot peening表面变形对抗疲劳性能的影响)