宇航材料工艺2024，Vol.54Issue(5)：50-57,8.DOI:10.12044/j.issn.1007-2330.2024.05.006
刃口钝圆半径对SiCp/Al复合材料铣削表面质量和切屑形貌影响研究
Study on The Influence of The Cutting Edge Radius on The Milling Surface Quality and Chip Morphology of SiCp/Al Composites
摘要
Abstract
SiC particle reinforced aluminum matrix composites(SiCp/Al)had excellent physical and mechanical properties and were widely used in aerospace,electronics,military and other high-end fields.In this paper,SiCp/Al composites with a volume fraction of 20％were taken as the research object,and the dry milling test was carried out by using the single factor test method.The effects of the cutting edge radius and the cutting speed on the cutting force,surface morphology,surface roughness(Ra)and chip morphology were analyzed.The results show that the cutting force decreases with the increase of the cutting edge radius,and decreases first and then increases with the increase of the cutting speed.With the increase of the cutting edge radius,the pits and furrows on the machined surface decrease,and the Ra tends to decrease.With the increase of cutting speed,the scratch defects on the machined surface increase,and the Ra increases first and then decreases;Under different cutting edge radius and different cutting speed,the chip shapes appear irregular sawtooth.The micro morphology of non free surface of the chip gradually becomes smooth with the increase of the cutting edge radius,and more serious cracks appear with the increase of the cutting speed.关键词
SiCp/Al复合材料/刃口钝圆半径/切削速度/表面质量Key words
SiCp/Al composite/Cutting edge radius/Cutting speed/Surface quality分类
金属材料引用本文复制引用
高航,牛秋林,戎杰,邱新义,李鹏南..刃口钝圆半径对SiCp/Al复合材料铣削表面质量和切屑形貌影响研究[J].宇航材料工艺,2024,54(5):50-57,8.基金项目
国家自然科学基金(52075168、51605161) （52075168、51605161）
湖南科技大学科学研究基金(KJ-2042) （KJ-2042）
