切削参数对高强铝合金干切削加工表面形貌的影响  

Effects of Cutting Parameters on Machined Surface Morphology of High Strength Aluminium Alloy under Dry Cutting

作　　者：王立新[1] 张程焱 俎晓莉 张自军[3] Wang Lixin;Zhang Chengyan;Zu Xiaoli;Zhang Zijun(College of Mechanical Engineering,Anyang Institute of Technology,Anyang,Henan 455000,China)

机构地区：[1]安阳工学院机械工程学院,河南省安阳市455000 [2]安阳工学院 [3]安阳鑫盛机床股份有限公司

出　　处：《工具技术》2019年第11期29-33,共5页Tool Engineering

基　　金：河南省重大科技专项资助项目(171100210300);安阳市科技攻关项目资助;安阳工学院博士启动基金资助项目(BSJ2018003)

摘　　要：为在高强铝合金干切削加工工艺制定时提供参考,设计了正交试验,并选用YBG102纳米涂层细颗粒合金刀具干式切削高强度铝合金7075-T6,分析了不同切削参数条件对已加工表面形貌的影响规律。结果表明:进给量是影响表面粗糙度的主要因素,其次是切削深度,最后是切削速度;在保障切削效率条件下,获得较好表面粗糙度的最佳工艺参数组合为较高切削速度、中等切削深度、较小进给量;三维表面轮廓高度较难通过切削三要素调控,但表面峰值占最大高度百分比受进给量和切削深度的影响较为明显。In order to provide reference for dry cutting process of aeronautical aluminum alloy,orthogonal test is designed,YBG102 nano-coated fine grain alloy cutting tool is selected to dry-cut high-strength aluminum alloy 7075-T6,The influence of different cutting parameters on the morphology of machined surface is studied.The results show that the feed is the main factor that affects the surface roughness,the second is the amount of back-feeding tool,then the cutting speed.Under the condition of ensuring the cutting efficiency,the best matching state of the better surface roughness is that the higher rotation speed,the suitable medium depth and the smaller feed.The height of 3D surface profile is difficult to be controlled by cutting parameters,but the percentage of peak value of surface to the maximum height is influenced by feed and back-feed.

关 键 词：高强铝合金 切削参数 表面形貌 正交试验 

分 类 号：TG166.3[金属学及工艺—热处理] TH161.14[金属学及工艺—金属学]