基于单颗粒刻划的硫化锌材料去除机理研究
Removal Mechanism of Zinc Sulfide Materials Based on Single-Point Scratching
DOI: 10.12677/MS.2018.83018, PDF,    国家自然科学基金支持
作者: 陈 冰：湖南科技大学智能制造研究院，难加工材料高效精密加工湖南省重点实验室，湖南 湘潭；姚 光：北京航空航天大学机械工程及自动化学院，北京
关键词: 刻划；硫化锌；塑性域；去除机理；Scratching； Zinc Sulfide； Ductile Regime； Removal Mechanism
摘要: 针对目前红外硫化锌非球面光学透镜超精密加工效率低、成本高的问题，基于单颗粒刻划仿真和实验研究硫化锌材料超精密磨削的可能性。通过仿真研究不同加工参数及压头形状对材料内部应力的影响，结合金刚石单颗粒刻划实验，观察划痕表面形貌和亚表层损伤，分析探讨材料的磨削去除机理及亚表层的完整性，结果表明：硫化锌材料可实现塑性域机械去除，亚表层损伤的主要形式为位错，且高速、细粒度的金刚石砂轮更容易获得稳定的塑性域去除。
Abstract: For ultra-precision machining aspherical optical lens of zinc sulfide with low efficiency and high cost, scratching simulation and experiment was investigated for exploring possibility of ultra-precision grinding zinc sulfide. Based on scratching simulation, effect of different machining parameters and pressure head shape on material internal stress in grinding process was explored. Shape appearance of scratching surface and subsurface was observed to analyze grinding removal mechanism and subsurface integrity. The results indicated that zinc sulfide material could be re-moved in ductile regime, and the main damage form of subsurface is dislocation. Besides, stable ductile regime removal was easy to be obtained by high speed and fine diamond grain wheel.
文章引用：陈冰, 姚光. 基于单颗粒刻划的硫化锌材料去除机理研究[J]. 材料科学, 2018, 8(3): 144-152. https://doi.org/10.12677/MS.2018.83018

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