新型铝锂合金2060T8板材铣削试验研究

Experimental Study on Milling of New Al-Li Alloy 2060T8 Sheet

设计开发了一种可用于薄板材铣削夹持固定的真空吸附系统,并通过一种新型铝锂合金2060T8的铣削试验,对该系统的实用性进行了验证;然后基于该系统,通过正交试验,进行了2060T8的铣削性能试验研究,主要进行了铣削加工参数对零件加工表面粗糙度的影响研究。结果表明,影响表面粗糙度的因素主次关系是:铣削深度>每齿进给量>铣削宽度>主轴转速;表面粗糙度随铣削深度、每齿进给量、主轴转速的增加而增大,随铣削宽度的增加先减小后增大。

The vacuum absorption system which can be used to hold and fix thin sheet during milling is designed and developed,and its practicality is verified through milling experiments on new AL-Li alloy 2060T8.Then based on the system,the study on the milling performance of 2060T8,mainly the effect of milling parameters on part surface roughness is conducted by orthogonal experiments.The research results indicate that milling depth has the greatest effect on the surface roughness,followed by feed rate per tooth,then milling width and finally spindle speed.The surface roughness increases with the increasing of milling depth,feed rate per tooth,spindle speed and decreases,then increases with the increasing of milling width.