铣削方式对微小精密零件加工表面质量的影响  

Effects on Surface Quality of Milling Method Based on Small Complex Precision Parts

作　　者：马东明 黄晓华[1] 翁亚华 王子昊 Ma Dongming;Huang Xiaohua;Weng Yahua;Wang Zihao(Nanjing University of Science and Technology,Nanjing 210094,China;不详)

机构地区：[1]南京理工大学,南京市210094

出　　处：《工具技术》2022年第4期84-87,共4页Tool Engineering

摘　　要：铣削加工是精密零件加工的重要手段之一,不同铣削加工方式对微小精密零件的表面质量有很大影响。本文通过研究铣刀单齿的运动轨迹模型,分别建立顺铣和逆铣时的粗糙度计算模型,以某微小精密零件实际加工参数为例,对顺逆铣的表面粗糙度进行对比分析;以AISI4340钢为工件材料,对某微小精密零件的顺逆铣进行仿真,研究两种铣削方式的铣削力和表面残余应力。Milling processing is one of the important methods of precision parts processing.Different milling processing methods have different effects on the surface quality of tiny precision parts.This paper studies the motion trajectory model of the single tooth of the milling cutter,and establishes the roughness calculation models for down milling and up milling respectively.Taking the actual processing parameters of a small precision part as an example,the surface roughness of down and up milling is compared and analyzed.AISI4340 steel is used as the workpiece material to simulate the up and down milling of a small precision part to study the force changes and surface residual stress of the two milling methods.

关 键 词：顺铣 逆铣 粗糙度建模 仿真分析 表面质量 

分 类 号：TG714[金属学及工艺—刀具与模具] TH161.14[机械工程—机械制造及自动化]