摘要
建立了钝圆刃口和倒棱刃口作用下的正交切削力模型,通过该模型反映刃口形状与切削力之间的关系,揭示了切削区工件塑性变形的本质。利用有限元方法研究了硬质合金刀具不同刃口作用下切削力的大小以及切削温度场分布并给出了刀具磨损具体值。此结果为从根本上掌握真实切削特性提供了理论依据并可对刀具刃口形状的设计提供有益的参考。
The orthogonal cutting force was established in precision carbide chip in the light of classical cutting model in the paper. The model reflects the relationship between blade edge and force, and shows the essential of plastic deforma- tion in cutting area of the workpiece. And summarizes the effect of edge preparation of the cutting tool （ round edge and chamfer edge） upon cutting force, and process variables （temperature, tool wear） in orthogonal as determined with Finite Element Method （FEM） simulations. The results obtained from this study provide a fundamental understanding of the process mechanics for cutting with realistic cutting tool edges and may assist in the tool edge design.
出处
《工具技术》
2013年第2期13-19,共7页
Tool Engineering
基金
国家"高档数控机床与基础制造装备"科技重大专项(2010ZX04001-162)
关键词
正交切削
刃口形状
切削特性
orthogonal cutting force
blade edge
cutting characteristic
