碳纤维复合材料超声辅助磨削加工表面质量影响因素及交互作用研究  

Optimization of Ultrasonic-Assisted Grinding Conditions of Carbon Fiber Composite Surfaces

作　　者：邵延君[1] 苗苗 王俊元[1] 许向川 Shao Yanjun;Miao Miao;Wang Junyuan;Xu Xiangchuan(School of Mechanical Engineering, North University of China, Taiyuan 030051, China)

机构地区：[1]中北大学机械工程学院,太原030051

出　　处：《真空科学与技术学报》2018年第6期515-520,共6页Chinese Journal of Vacuum Science and Technology

基　　金：山西省自然科学基金项目(201701D121079)

摘　　要：碳纤维复合材料属于典型的难加工材料。为了改善超声辅助磨削加工碳纤维复合材料的表面质量,选取表面粗糙度(Ra)与磨削力(Fz)作为研究对象,主轴转速(A)、进给速度(B)、磨削深度(C)、工具粒度(D)这几个关键的工艺参数作为优化变量进行超声辅助磨削试验。结合响应面分析法,建立能够较好反映各优化变量对Ra和Fz的预测回归模型。通过方差分析和建立的响应面3D图,得出各参数及其交互作用对响应变量影响的显著性及其影响规律。借助Design Expert软件优化后得到在考虑这些交互作用下的最优工艺参数组合为:A=4500 r/min,B=8 mm/min,C=0.1 mm,D=275 um。We reported the optimization of ultrasonic assisted grinding conditions of carbon fiber composite surfaces. The influence of the multi-variables,including but not limited to the spindle speed,feed rate,grinding depth and tool grain-size,on the grinding force and surface roughness was mathematically formulated with regression models,theoretically investigated with analysis of variance（ANOVA） and with response surface 3 D map analysis,and experimentally evaluated. The preliminary results show that the strongly correlated grinding conditions all have a major impact. Optimized with Design Expert software,the grinding conditions included： a spindle speed of 4500 r/min,a feed rate of 8 mm/min,a grinding depth of 0. 1 mm and a tool grain-size of 275 μm. We suggest that the optimized grinding conditions may be of some technological interest in machining carbon fiber composite materials.

关 键 词：碳纤维复合材料 超声辅助磨削 响应面分析法 交互作用 

分 类 号：TH16[机械工程—机械制造及自动化]