高速车削工件表面形貌及其粗糙度特征的试验研究

借助于扫描电镜照片、已加工样品表面形貌轮廓描绘和试验数据处理等手段,对高速车削工件已加工表面形貌与其表面粗糙度之间的关系以及它们的形成特征进行了分析研究.研究结果表明,切削速度和被切削材料的硬度是决定高速车削过程中被切削层材料变形和已加工表面形貌及其表面粗糙度形成的主要因素,随着被切削材料硬度和切削速度的提高,工件已加工表面质量在一定程度上得到了改善.在已加工表面上出现了犁垄和高速加工所特有的熔融金属涂抹现象,由此决定着已加工表面粗糙度值的变化.

Experimental study on the characteristics of machined surface profiles and their roughness in high speed turning

By the aids of the scanning electron microscope(SEM) photographs and the machined surface sample profiles portraits and data processing, the forming characteristics of the machined surface topography and roughness are analytically studied, the findings show that cutting speed and material hardness are the dominant factors to determine the material deformation and the formations of the surface topography and its roughness in the high speed turning process. With the increasing of the cutting speed and the material hardness, the surface quality is improved to a certain extent.