摘要
以应力强度干涉模型为基础,以刀具材料本身的临界疲劳应力小于刀具加工时刀头内的最大应力为失效判据,建立破损可靠性理论模型。对钝化处理后的丝锥进行可靠性试验并验证可靠性模型的正确性,通过对比得到刃口钝化处理对高速钢丝锥可靠性的影响。
The damage theory of reliability model was established based on the stress - strength interference model and the failure criteria that critical fatigue stress of the tool material is less than the maximum stress of the tool bit machining. The correctness of the reliability model is validated by reliability test of the tap treated with passivation, and the effects on the reliability of the high speed steel tap with passivation treatment are obtained in comparisons.
出处
《工具技术》
北大核心
2017年第4期38-43,共6页
Tool Engineering
基金
国家自然科学基金(51275333)
关键词
高速钢丝锥
可靠度模型
刃口钝化
可靠性试验
HSS tap
reliability model
edge passivation technology
reliability test
