摘要
提出了超声研磨螺旋锥齿轮的理论与方法。分析了超声研齿不灵敏性振动切削机理。超声振动使研磨切削抗力减小,动态啮合精度提高,因此,使研磨效率与齿面质量得到相应提高。进行了普通与超声研齿对比试验表明,超声研齿材料去除率可达到普通研磨的三倍,齿面微切削与塑性流动纹理明显,点蚀深度、划痕长短均匀,齿面质量明显优于普通研磨齿面,即粗糙度低至0.2μm,轮廓支承长度率Rmr(c)=100%,水平截距c=1.2μm。
The paper presented the theory and method for the ultrasonic lapping of spiral-bevel and hypoid gears and analyzed its insensitive vibration cutting mechanism. As ultrasonic vibration reduces cutting force and improves dynamic meshing precision of gears, the lapping efficiency and tooth surface quality improve correspondingly. Contrastive experiments on conventional lapping and ultrasonic lapping indicate that the material removal rate of the latter is three times that of the former. With the even length of micro-grooves and obvious ductile flow traces formed by the impact and grinding of abrasive particles, ultrasonic lapping produces better tooth surface quality, roughness being less than 0.2μm, length ratio of a profile bearing = 100% and section height = 1.2μm.
出处
《机械科学与技术》
CSCD
北大核心
2007年第4期491-493,共3页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(50475060)
河南省教育厅自然科学基金项目(2004922031)资助
关键词
超声研磨
材料去除率
不灵敏性振动切削机理
ultrasonic lapping
material removal rate
insensitive vibration cutting mechanism
