超声辅助内圆磨削不锈钢研究  

Experimental investigation on ultrasonic assisted internal grinding of stainless steel

作　　者：王骞[1] 杨长勇[1] 傅玉灿[1] 徐九华[1] 杨能阁 闫文 

机构地区：[1]南京航空航天大学机电学院,南京210016 [2]西安航空动力股份有限公司,西安710021

出　　处：《金刚石与磨料磨具工程》2015年第5期29-33,37,共6页Diamond & Abrasives Engineering

基　　金：国家自然科学基金(51305200);江苏省自然科学基金(BK20130805);江苏省科技支撑项目(BE2013122);南京航空航天大学研究生创新基地(实验室)开放基金(kfjj201435);中央高校基本业务费专项资金资助

摘　　要：针对航空发动机燃油喷嘴用材料3Cr13不锈钢进行超声辅助内圆磨削试验,并对超声辅助内圆磨削不锈钢的表面形成机理进行了初步的分析。在此基础上,研究了超声作用、主轴转速和磨粒粒度尺寸对孔表面粗糙度的影响规律。结果表明:超声振动有助于降低不锈钢孔的加工表面粗糙度,但超声作用效果随着主轴转速的提高而减弱;不锈钢孔表面粗糙度值随着主轴转速的提高而下降;使用小粒度尺寸磨粒进行超声辅助内圆磨削不锈钢时,能明显降低加工表面粗糙度。Experimental investigation on ultrasonic assisted internal grinding of 3Cr13 stainless steel used in aviation engine fuel nozzle was carried out . Surface forming mechanism of ultrasonic assisted internal grinding of stainless steel was studied , based on which , the influence of the ultra‐sonication , spindle speed , grinding particle size on work‐piece surface roughness was investigated . The results showed that the surface roughness of stainless steel with ultra‐sonication was smaller than that of the ordinary internal grinding and that the effect of ultra‐sonication was weakened with the increase of the spindle speed . Furthermore , the surface roughness of stainless steel tended to decrease with the increase of the spindle speed . In addition , ultrasonic assisted internal grinding of stainless steel with small‐size‐abrasive was effective in reducing the surface roughness value .

关 键 词：超声辅助内圆磨削 燃油喷嘴 粗糙度 不锈钢 

分 类 号：TG58[金属学及工艺—金属切削加工及机床] TG74