Abstract：In order to improve the fatigue strength of Ti- 6Al- 4V parts，the transition fillet and the thread of the parts are worked by rolling strengthening process. However, notch and crack defects appeared on surface after rolling. So the reason for the failure of the transition fillet and the thread surface is analyzed from the technical requirements analysis, the product qualification rate is greatly raised from 86.7% to 96% after the process improvement. Three referential experiences are provided after the process improvement was discussed.
朱朝晖 刘进明. 基于滚压强化的钛合金零件工艺改进[J]. , 2015, 22(5): 57-59.
ZHU Zhao- hui，LIU Jin- ming. Process improvement of titanium alloy parts based on rolling strengthening. , 2015, 22(5): 57-59.
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V. Venkateswarlu, D. Tripathy, K. Rajagopal et al. Failure analysis and optimization of thermo-mechanical process parameters of titanium alloy(Ti-6Al-4V)fasteners for aerospace applications, Journal of Case Studies in Engineering Failure Analysis, 1 (2013) 49–60
2015, Vol. 22 
