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通过用高速摄影机对刀具切入过程的观察,本文指出刀刃钝圆半径的大小明显地影响着滑擦阶段经历时间的长短。文中比较了不同材料刀具的切薄能力和不同工件材料的可切薄性,研究了在精密切削条件下,刀刃钝圆半径对切削力、切削力比、切屑变形系数、加工硬化和鳞刺高度的影响,并建立了精密切削时的切削模型。
By observing the cutting process of the tool with a high-speed camera, the paper points out that the radius of the obtuse radius of the cutting edge obviously influences the length of the experience period of the friction stage. In this paper, the cutting ability of different materials and the thinness of different workpiece materials are compared. Under the conditions of precision cutting, the influence of the blunt radius of cutting edge on the cutting force, cutting force ratio, chip deformation coefficient, work hardening and splinter height The impact and the establishment of a precision cutting of the cutting model.