摘要
数控车床精车后的连杆衬套表面粗糙度是影响其使用性能的关键因素之一。以某型号柴油机的连杆衬套为对象,采用单因素试验法,以切削速度、进给量以及切削深度为试验变量,以精车后表面粗糙度(Ra和Rz值)为评价指标,进行车削试验,研究各精车参数对连杆衬套表面粗糙度的影响。结果表明,精车后连杆衬套的粗糙度随切削速度增大而增大,随进给量增大先减小后增大,随切削深度的增大而增大。其中,进给量对精车件表面粗糙度(Ra和Rz)的影响最大。
Taking the connecting rod bushing of a certain type diesel engine as the object, the cutting speed, feed rate and cutting depth as test variables, and the rear surface roughness （Ra and Rz） as evaluation index, the single factor test method was used to determine the cutting speed, feed rate and cutting depth. The influence of the fine cutting parameters on the surface roughness of the connecting rod bushing was studied. The results show that the roughness of the bushing increases with the increase of cutting speed, first decreases and then increases with the increase of the increases of feed volume, and increases with the increase of cutting depth. Among them, the effect of the feed volume on the surface roughness （Ra and Rz） is the greatest.
出处
《铸造技术》
北大核心
2017年第9期2148-2151,共4页
Foundry Technology
基金
山西省自然科学基金资助项目(2012011023-2)
关键词
连杆衬套
精车参数
表面粗糙度
单因素试验
connecting rod bushing
fine cutting parameters
surface roughness
single factor test
