摘要
为了分析动力卡盘系统的动力学特性及其对加工工件表面粗糙度的影响,搭建了动力卡盘系统的动力学特性测试系统,在综合分析转速和切削深度的基础上设计了24组试验,测量了加工过程中的切削力、切削振动信号和24组工件的表面粗糙度。结果表明:切削层厚度的变化会引起切削力的显著变化;刀具的前两阶模态对加工过程的切削稳定性影响最大;高效精密切削时应优先选择提高转速,其次是加大切深。
In order to analyze dynamic characteristics of the power chuck system and its effect on surface roughness of the workpieces,dynamic characteristics testing system was established, and 24 groups experiments were designed comprehensively considering rotating speed and cutting depth. Cutting forces and cutting vibration signals during machining process were measured,and surface roughness of the 24 workpieces were measured. The results show that, change of the cutting depth can induce significantly change of the cutting force and the anterior two-order modes of the cutting tool influence cutting vibration greatly. In addition, during high precision cutting process, high rotating speed should be priority selected than deep depth.
出处
《工具技术》
北大核心
2016年第10期90-93,共4页
Tool Engineering
关键词
动力卡盘
切削稳定性
切削力
切削振动
表面粗糙度
power chuck
cutting stability
cutting force
cutting vibration
surface roughness
