宇航材料工艺2018，Vol.48Issue(2)：50-55,6.DOI:10.12044/j.issn.1007-2330.2018.02.010
透波性Si3N4陶瓷铣削加工表面边缘破损实验研究
Investigation on Edge Chipping of Wave-Transmitting Si3N4 Ceramics in Milling
摘要
Abstract
Edge chipping of wave-transmitting ceramics in milling is prone to be presented,so the type,location of edge chipping has been investigated with different cutting depth experiments.The effect of cutting depth on edge chipping and the mechanism have also been analyzed.Finally,edge chipping control methods have been proposed.The results show that the edge chipping is mainly concentrated at the exit seamed edge and the entrance side edge of the milling tool when the depth is from 0.4mm to 0.8mm.With the increasing of cutting depth in brittle domain machining,the edge chipping is added.One way of controlling edge chipping is to reduce the cutting depth to no more than 0.3mm,another way is to using the tool path planning method of follow periphery,and ensure that the angle between speed direction and the feed direction is not less than 90°.The investigation provides technical support to improve the surface of the wave-transmitting Si3N4 ceramics in milling.关键词
透波性Si3N4陶瓷/铣削/边缘破损Key words
Wave-transmitting Si3N4/ceramics/Milling/Edge chipping分类
机械制造引用本文复制引用
杨万鹏,刘运凤,荆君涛,魏士亮..透波性Si3N4陶瓷铣削加工表面边缘破损实验研究[J].宇航材料工艺,2018,48(2):50-55,6.基金项目
国防预研联合基金(6141B070602)和国家博士后基金(2015M581462) （6141B070602）
