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Cutting Performance of Randomly Distributed Active Abrasive Grains in Gear Honing Process
Micromachines ( IF 3.4 ) Pub Date : 2021-09-17 , DOI: 10.3390/mi12091119
Yang Gao 1, 2 , Fuwei Wang 1, 2 , Yuan Liang 2 , Jiang Han 1 , Jie Su 3 , Yu Tong 2 , Lin Liu 4
Affiliation  

In power gear honing, the random distribution of abrasive grains on the tooth surface of the honing wheel is the main factor that influences the machining performance of high-quality hardened gears. In order to investigate the micro-edge cutting performance of the active abrasive grains on the workpiece gear, the real honing process is simplified into a micro-edge cutting model with random distribution of active abrasive grains in the cells of the meshing area by obtaining the random distribution states such as the position, orientation and quantity of the honing wheel teeth. The results show that although the active abrasive grains are distributed at different locations, they all experience three types of material removal—slip rubbing, plowing and cutting—allowing the gear honing process to have the combined machining characteristics of grinding, lapping and polishing. The active abrasive grains in first contact produce high honing force, high material removal efficiency and poor surface roughness on the machined workpiece, while the latter ones have the opposite effects. The dislocation angle affects the chip shape and chip discharging direction, and the highest honing force and material removal efficiency is achieved with a dislocation angle of 135°. The higher the number of active abrasive grains in a given contact area, the higher the material removal efficiency.

中文翻译:

随机分布活性磨粒在珩齿过程中的切削性能

在动力齿轮珩齿中,磨粒在珩齿轮齿面上的随机分布是影响优质硬齿面齿轮加工性能的主要因素。为了研究活性磨粒在工件齿轮上的微刃切削性能,将实际珩磨过程简化为活性磨粒随机分布在啮合区单元格内的微刃切削模型,得到珩磨轮齿的位置、方向、数量等随机分布状态。结果表明,虽然活性磨粒分布在不同的位置,但它们都经历了三种类型的材料去除——滑动摩擦、犁形和切削——使得珩齿过程具有磨削、刨削和切削的综合加工特性。研磨和抛光。第一接触的活性磨粒对被加工工件产生高珩磨力、高材料去除效率和较差的表面粗糙度,而后者则相反。位错角影响切屑形状和排屑方向,135°的位错角可获得最高的珩磨力和材料去除效率。在给定的接触面积内,活性磨粒的数量越多,材料去除效率就越高。135°的位错角可获得最高的珩磨力和材料去除效率。在给定的接触面积内,活性磨粒的数量越多,材料去除效率就越高。135°的位错角可获得最高的珩磨力和材料去除效率。在给定的接触面积内,活性磨粒的数量越多,材料去除效率就越高。
更新日期:2021-09-17
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