涂层刀具切削热传导模型试验
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经过刀-屑热量的分配后,进入刀具侧的刀-屑热量会引起涂层刀具内部温度升高。现有关于涂层刀具切削温度分布的数学解析建模研究中,多数假定涂层刀具前刀面施加恒定热源。但在切削加工中,尤其是瞬态切削热传导阶段,刀具前刀面所受热源随时间变化的时变效应不能忽略。目前缺乏关于涂层刀具几何尺寸及材料热物理性能参数的选用和设计的研究。
After the distribution of heat between the tool and chip, the heat transferred to the tool side will cause an increase in the internal temperature of coated cutting tools. In most existing mathematical analytical modeling studies on the cutting temperature distribution of coated tools, a constant heat source is assumed to be applied on the rake face of the coated tool. However, during cutting processes, especially in the transient heat conduction phase, the time-varying effect of the heat source acting on the tool rake face over time cannot be ignored. Currently, there is a lack of research on the selection and design of geometric dimensions and thermophysical property parameters for coated cutting tools.




