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铸锭工艺对齿轮弯曲疲劳性能影响的试验研究
Authors
刘怀举
武忠睿
+3 more
毛天雨
陈地发
魏沛堂
Publication date
1 January 2022
Publisher
Editorial Office of Journal of Mechanical Transmission
Abstract
当前,表面硬化齿轮存在多种铸锭工艺状态,开展铸锭工艺对齿轮弯曲疲劳性能影响的研究,对齿轮抗疲劳精益设计和成本控制有十分重要的意义。对模铸锭、连铸坯和电渣锭18CrNiMo7-6渗碳齿轮开展了表面完整性表征测试,研究了不同铸锭状态齿轮的齿根残余应力、表面粗糙度和硬度差异;基于齿轮弯曲疲劳试验国家标准GB/T 14230—2021,设计了齿轮弯曲疲劳试验方案,对模铸锭、连铸坯和电渣锭18CrNiMo7-6齿轮开展了升降法齿轮弯曲疲劳试验,获取了不同可靠度下的弯曲疲劳极限,探究了铸锭工艺对齿轮弯曲疲劳极限的影响;对3种工艺状态齿轮开展了Locati快速测定法的齿轮弯曲疲劳极限测试,研究了两种试验方法的弯曲疲劳极限结果差异,为我国齿轮疲劳基础数据建设与抗疲劳主动设计提供参考
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Last time updated on 06/04/2023