20CrNi2MoA渗碳淬火齿轮弯曲疲劳可靠度研究

详细信息

Reliability of Gear-tooth Bending Fatigue Strength for 20CrNi2MoA Steel Gear of Carburization-quench Hardening

摘要: 20CrNi2MoA渗碳淬火齿轮弯曲疲劳强度的可靠度试验在英国产STRON 1603型电磁谐振疲劳试验机上进行.短寿命区采用4级恒定应力水平的成组试验法,长寿命区采用应力升降试验法.在试验数据基础上,拟合出完整的C——R——S——N曲线,并获得各种可靠度下的弯曲疲劳极限值.
- 渗碳淬火齿轮 /
- C——R——S——N曲线 /
- 疲劳 /
- 可靠度 /
- 置信度
Abstract: Reports the experimental investigation on the reliability of gear-tooth bending fatigue strength for 20CrNi2MoA steel gear of carburization-quench hardening.The tests were carried out on a electro-magnetic resonance fatigue test machine of type STRON 1603(U.K). The grouping test method at four constant stress levels was applied for short life-span areas while the stress up-and-down test method were used for long life-span areas. The tested data were then processed with statistic method. Complete C-R-S-N curves were thus fitted and as a result, the values of limits of bending fatigue under various reliabilitys were gained.
- carburization-quench hardening gear /
- C-R-S-N curves /
- fatigue /
- reliability /
- confidence