硫化锌原位激光辅助切削机理研究  

Research on In-situ Laser Assisted Cutting Mechanism of Zinc Sulfide

作　　者：王志 赵宏鑫 朱德清 王雪 朱蓓蓓 肖峻峰[1] WANG Zhi;ZHAO Hong-xin;ZHU De-qing;无(School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074;Beijing Precision Engineering Institute for Aircraft Industry,Beijing 100076;Shanghai Aerospace Control Technology Research Institute,Shanghai 201109)

机构地区：[1]华中科技大学机械科学与工程学院,武汉430074 [2]中国航空工业集团公司北京航空精密机械研究所,北京100076 [3]上海航天控制技术研究所,上海201109

出　　处：《航空精密制造技术》2025年第1期6-10,14,共6页Aviation Precision Manufacturing Technology

基　　金：JCKY2023205B002资助项目。

摘　　要：基于仿真和实验探索原位激光辅助金刚石切削(LADC)探究硫化锌切削机理的基础上,建立有限元(FE)仿真激光加热过程,分析激光作用下硫化锌的温度分布规律。通过纳米压痕实验和仿真的应力-应变关系耦合分析,获得了硫化锌材料的Johnson-Cook本构模型。实验结果表明,原位LADC下,激光功率的增加和切削速度的降低均可使得裂纹和凹坑等缺陷初始出现位置向后延伸,缺陷密度降低,切削力平稳。较高的激光功率和较低的切削速度有利于硫化锌的原位LADC加工。The cutting mechanism of zinc sulfide was explored through insitu laser assisted diamond cutting(LADC)based on simulation and experimental research.The finite element(FE)simulation of laser heating process was established and the temperature distribution of zinc sulfide under laser action was analyzed.The Johnson Cook constitutive model of zinc sulfide material was obtained through the coupling analysis of stress-strain relationship through nanoindentation experiment and simulation.The experimental results show that under insitu LADC,both an increase in laser power and a decrease in cutting speed can cause the initial appearance of defects such as cracks and pits to extend backward,resulting in a decrease in defect density and a stable cutting force.Higher laser power and lower cutting speed are beneficial for insitu LADC processing of zinc sulfide.

关 键 词：激光辅助金刚石加工 硫化锌 塑性去除 切削力 

分 类 号：TB321[一般工业技术—材料科学与工程] TN249[电子电信—物理电子学]