摘要
为了提高回转类零件轮廓曲面精度和抛光效率,提出了一种聚氨酯磨具抛光的新方法,结合层间力学性质分析,讨论双层弹性体中的力传递问题,建立表层单颗磨粒的切削力学模型,对抛光过程进行仿真分析,得到应力、应变分布规律,以及下压量对接触区应力的影响,为聚氨酯磨具抛光机理研究和工艺优化提供了理论依据和方法,通过聚氨酯磨具抛光试验,验证了聚氨酯磨具拥有较高材料去除率,同时得到较好的表面粗糙度。
This essay addresses a new method of using ploy-urethane grinding tools for the purposes of improving the precision of the curved surfaces of rotary parts and the efficiency of polishing. A cutting mechanical model on single surficial grit is established combining the analysis of the interlayer mechanical and the discussion of force transmission in double elastomer. Simulation analy- sis is carried out on the grinding process. Stress and strain distribution rule is obtained, and also the down quantity influence on the local stress, thus providing the theoretical basis and the method for the ploy-urethane grinding tools mechanism research and process optimization, verified by poly-urethane abrasive polishing experiments, poly-urethane abrasive has higher material removal rate, at the same time get better surface roughness.
出处
《现代制造工程》
CSCD
北大核心
2015年第7期98-102,112,共6页
Modern Manufacturing Engineering
