YG8硬质合金刀具干切削铝合金表面粗糙度及刀具磨损研究  

Study on the roughness of the machined surface and wear mechanism of the cutter in dry cutting aluminum alloy with YG8 cemented carbide

作　　者：刘丽云 王金芳[1] 涂志标[1] 庆振华[2] 叶桢 LIU Liyun;WANG Jinfang;TU Zhibiao;QING Zhenhua;YE Zhen(School of Mechanical Engineering,Taizhou University, Taizhou 318000, CHN;School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, CHN)

机构地区：[1]台州学院机械工程学院,浙江台州318000 [2]合肥工业大学机械工程学院,安徽合肥230009

出　　处：《制造技术与机床》2018年第6期120-123,共4页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金(21671145);浙江省教育厅科研项目(Y201430375);浙江省工量刃具检测与深加工技术研究重点实验室开放基金项目(ZD201610);合肥工业大学博士学位人员专项资助(JZ2016 HGBZ0799)

摘　　要：采用YG8硬质合金刀具对铝合金进行干切削正交试验,采用共聚焦显微镜测量加工表面粗糙度,分析切削参数进给量、切削速度、背吃刀量对铝合金加工表面粗糙度的影响规律。结果表明:进给量对加工表面粗糙度影响较大,其次是切削速度,而背吃刀量的影响相对较小。采用扫描电子显微镜(SEM)观察刀具磨损表面形貌,采用能谱分析仪(EDS)对刀具磨损表面进行元素分析,分析研究了刀具磨损机理。The influence of the three cutting factors on the surface roughness of aluminum alloy with YG8 cemented carbide was analyzed based on orthogonal experiment. Surface roughness of the finished surface was measured by confocal microscopy. The results show that feed rate has a great influence on the roughness of the machined surface,followed by cutting speed,but the influence of cutting depth is relatively small. The wear of the cutting tool was observed by scanning electron microscope（ SEM） and the element distribution of the wear surface was analyzed by electronic differential system（ EDS）. The wear mechanism of the cutting tool was analyzed and studied.

关 键 词：YG8硬质合金 铝合金 干切削 磨损机理 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG5[金属学及工艺—金属材料]