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现代机器对零件的使用性能提出了越来越高的要求,特别是航空产品,由于所受之应力、温度以及作战环境等条件越来越苛刻,因而对零件的可靠性,特别是使用性能要求更高.多次的故障分析表明,零件的疲劳断裂总是从零件表面开始的.所以零件加工后的表面完整性在很大程度上决定了它的使用性能,诸如耐磨性、耐蚀性以及疲劳强度等.在表面完整性的各项指标中,残余应力与冷作硬化占有重要的位置.缓进磨削作为一种新的磨削方法,目前刚刚进入实用阶段,国内外学者对这种加工方法加工后零件的表面完整性几乎无人问津,多半是研究这种加工方法的机理.为了进一步推广这种加工方法,作者根据近几年来在这方面断断续续做的或参加的试验,将结果予以整理、分析,写成此文,以便与缓进磨削方面的专家共同探讨.
Modern machines put forward higher and higher requirements on the service performance of parts. Especially for aviation products, due to the increasingly harsh conditions of stress, temperature and environment, the reliability of parts, especially the performance requirements Higher.Multiple failure analysis shows that the fatigue fracture of the parts always starts from the surface of the parts.Therefore, the surface integrity of parts after processing largely determines its performance, such as wear resistance, corrosion resistance And fatigue strength, etc .. In the surface integrity of the indicators, the residual stress and cold hardening occupy an important position.Advanced grinding as a new grinding method, has just entered the practical stage, domestic and foreign scholars on this Processing methods After the processing of parts of the surface almost no one is interested in the surface, mostly to study the mechanism of this processing method.In order to further promote this processing method, the author in accordance with the last few years in this area to do or continue to participate in the test will be The results are collated, analyzed and written into this article for discussion with experts in slow grinding.