Abstract

In the field of aerospace and automotive mold manufacturing, the design and manufacture of wear-resistant surfaces is always an important topic. In this study, high-speed milling method was used to prepare random morphology, quadrilateral pit morphology and hexagonal pit morphology. Firstly, the milling surface forming mechanism of ball-end milling cutter was analyzed, Innovative use of texture angle to distinguish between different morphology. Secondly, a plane wear simulation is set up, the wear resistance of the workpiece was analyzed with wear depth, temperature and strain as indicators. Finally, the wear quality of the three pit morphology was compared by means of friction and wear experiments. The experimental results obtained was consistent with the simulation, which means that the quadrilateral pits have better wear resistance.

摘要

在航空航天和汽车模具制造领域，耐磨表面的设计与制造一直是一个重要的课题。本研究采用高速铣削方法制备随机形貌、四边形凹坑形貌和六边形凹坑形貌。首先分析了球头铣刀铣削表面的形成机理，创新利用纹理角度来区分不同的形貌。其次，建立平面磨损模拟，以磨损深度、温度和应变为指标对工件的耐磨性进行分析。最后，通过摩擦磨损实验比较了三坑形态的磨损质量。得到的实验结果与模拟一致，这意味着四边形凹坑具有更好的耐磨性。