摘要
基于磨粒特征尺寸与砂轮、工件间液膜厚度比值的变化,研究了砂轮约束磨粒喷射精密光整加工材料去除机理。分析了在两体加工及三体加工模式条件下,单颗磨粒运动特点以及磨粒由两体研磨加工向三体抛光加工转变的临界条件。实验证明,砂轮约束磨粒喷射光整加工中,随着加工循环的增加,工件表面微观形貌变化规律与理论分析相同,实验结果和理论分析吻合很好。
The material removal mechanism into abrasive jet precision finishing machining with grinding wheel as restraint was investigated, based on the size ratio of characteristic particle size to film thickness between grinding wheel and workpiece. The single abrasive movement characteristics were studied under two-body lapping and three-body machining mode. The critical transition conditions from two-body lapping to three-body polishing were analyzed. Experiments were conducted for theoretical mode verification. It is found that workpiece surface SEM pictures are agreement with theoretical analyses.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2005年第23期2116-2120,共5页
China Mechanical Engineering
基金
国家自然科学基金资助项目(50475052)
高等学校博士学科点专项科研基金资助项目(20040145001)
关键词
砂轮约束
游离磨粒
材料去除机理
两体研磨加工
三体抛光加工
磨粒喷射加工
grinding wheel as restraint
loose particle
material removal mechanism
two-bodylapping
three-body polishing
abrasive jet machining
