铝锂合金高速铣削表面粗糙度试验研究  

Experimental Study on Surface Roughness During High Speed Milling Aluminum-Lithium Alloy

作　　者：丁悦[1] 王焱[1] 吴茂庆[1] 刘畅[1] 

机构地区：[1]中航工业北京航空制造工程研究所

出　　处：《航空制造技术》2015年第6期92-94,99,共4页Aeronautical Manufacturing Technology

基　　金：民机科研项目(MJZ-G-2011-20)资助

摘　　要：在对2198铝锂合金进行高速铣削试验的基础上,研究了切削参数对表面粗糙度的影响规律,观察了其铣削表面形貌。结果表明:平直处表面粗糙度与拐角处表面粗糙度不一致是由机床主轴振动和实际进给量变化造成的;较小的每齿进给量和铣削宽度能够获得较好的表面质量;表面缺陷常发生在铣削刀痕交叉处。A series of tests are conducted based on high speed milling 2198 aluminum-lithium alloy. It is investigated that the cutting parameters could influence surface roughness and the surface topography. The experimental results show that the straight surface quality is better than the corner surface roughness. The difference is due to the chatter of milling and the variation of the actual feed per tooth. In addition, a low level of feed per tooth and milling width could get better surface quality. Moreover, surface defects are usually observed at the cross of tool paths.

关 键 词：铝锂合金 高速切削 表面粗糙度 表面形貌 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]