LY12铝合金的冰盘抛光纳米加工实验研究

采用冰盘抛光新技术，首次对LY12铝合金材料进行了纳米抛光加工实验研究，给出了实际测量结果。通过分析与实验验证，得出了不同加工参数对冰盘抛光精度带来不同影响的规律。对冰盘抛光纳米加工进行了较为深入的分析与探讨。     

Micro-Mechanical Behavior of HOPG in Nano-Indentation

The mechanical behavior of highly oriented pyrolyti c graphite (HOPG) has been investigated in this paper, by simulating a machining p rocess in a nano-indent test with the method of molecular dynamics (MD) and by doing an experiment directly using the probe tip of atomic force microscope (AFM ) as tool. The characteristics and properties of graphite crystal lattice are di scussed firstly, then, three potentials are selected for different interaction b etween graphite atoms according to the graphite prope...     

基于微纳米摩擦学的超精密加工技术研究进展

回顾了超精密加工机理研究的几种主要方法，重点介绍了结合微观摩擦磨损和分子动力学模拟的微纳米加工材料去除机理的研究现状。在此基础上，简单讨论了微摩擦磨损与微纳米切削加工的关系，试图说明当切削深度小到接近于刀具的刃口半径时，微纳米切削加工中刀具与工件的作用过程近似于滑动摩擦作用过程，基于微摩擦学的微纳米加工机理的研究是合适的、有意义的。