SiC_p/Al超声辅助磨削工艺参数对加工表面质量影响研究

Influence of ultrasonic assisted grinding parameters on machined surface quality of SiC_p/Al

为了研究磨削工艺参数对SiC_p/Al复合材料加工表面质量的影响,采用超声辅助磨削的方法加工SiC_p/Al工件。考虑主轴转速、进给速度和磨削深度的常用取值范围,设计了16组实验,超声辅助磨削SiC_p/Al工件后,测量了工件的表面粗糙度、表面破碎率、轮廓偏斜度和轮廓陡峭度,分析了3个工艺参数对4个表面质量评价指标的影响,得到了4组加工工艺参数的最优组合。结果表明,主轴转速对4个参数的影响程度都最大,4组工艺参数的最优组合相差较大。在所选的工艺参数范围内,使工件表面粗糙度对较低的最优组合为A_4B_1C_1,即转速为7 000r/min,进给量为10mm/min,磨削深度为10μm的磨削工件表面。

In order to research influence of grinding parameters on machined surface quality of SiC_p/Al compound material,SiC_p/Al workpieces were ultrasonic assisted grinded.Considering value ranges of spindle speed,feed rate and grinding depth,16 groups experiments were designed.After ultrasonic assisted grinding SiC_p/Al,surface roughness,surface breaking rate,contour deviation and contour sharpness of the workpieces were measured.Influence of the grinding parameters on the machined surface quality parameters were analyzed and 4groups optimal process parameters were obtained.The results show that,spindle speed influences the machined surface quality greatly and the 4groups optimal process parameters differ greatly.In order to obtain high surface quality,combination method of the grinding parameters should be further researched.