纯铁材料精密切削过程切削力及表面粗糙度研究  

Study on cutting force and surface roughness of pure iron material in precision turning

作　　者：朱金鹏 杨吟飞[1] 孔金星[2] ZHU Jinpeng;YANG Yinfei;KONG Jinxing(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,CHN;Institute of Mechanical Manufacturing Technology,China Academy of Engineering Physics,Mianyang 621900,CHN)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016 [2]中国工程物理研究院机械制造工艺研究所,四川绵阳621900

出　　处：《制造技术与机床》2019年第3期108-112,117,共6页Manufacturing Technology & Machine Tool

基　　金：国防基础预研科学挑战计划(JCKY2016212A506-0107);中国工程物理研究院发展基金(2015B0203029)

摘　　要：采用正交试验法,开展纯铁材料精密切削过程切削用量对切削力和表面粗糙度影响规律的试验研究,建立了切削力和表面粗糙度经验公式。结果表明,试验结果与经验公式预测值间的误差小于20%,经验公式能够用于预测纯铁材料精加工过程中的切削力和表面粗糙度。切削深度对切削力的影响最大,其次是进给量,切削速度对切削力的影响最小;进给量是影响表面粗糙度的最主要因素,其次是切削深度,切削速度对粗糙度的影响最小。上述研究成果将为精密加工弱刚性纯铁工件工艺参数的优化奠定技术基础。In this paper,the effects of cutting parameters on the cutting force and surface roughness in the process of precision cutting pure iron material were studied based on orthogonal test method.The empirical formulas of cutting force and surface roughness were established.The results show that the error between the experimental results and the predicted values of the empirical formula is less than 20%.The empirical formulas can be used to predict the cutting force and surface roughness in the finishing process of pure iron materials.Cutting depth has the greatest influence on cutting force,followed by feed rate,the influence of cutting speed is small;feed rate is the most important factor affecting surface roughness,followed by cutting depth,the influence of cutting speed is small.The above study results will lay a technical foundation for the optimization of the process parameters of precision machining weak rigidity pure iron parts.

关 键 词：纯铁 精密切削 切削力 表面粗糙度 

分 类 号：TG506[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]