CAJ | 학술논문

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。
재대2198려리합금진행고속선삭시험적기출상，연구료절삭삼수대표면조조도적영향규률，관찰료기선삭표면형모。결과표명：평직처표면조조도여괴각처표면조조도불일치시유궤상주축진동화실제진급량변화조성적；교소적매치진급량화선삭관도능구획득교호적표면질량；표면결함상발생재선삭도흔교차처。
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 experi-mental 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.