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切削能绝大部分会转化为切削热,进而直接影响切削温度,因此研究切削能的产生、传递与转化对切削温度的研究尤显重要.本文以304不锈钢专用新型硬质合金微坑车刀创新设计为例,通过对新型微坑车刀和原车刀切削过程的切削能比较研究,建立车刀切削过程切削能与前刀面温度的关系模型,开展新型微坑车刀剪切能和摩擦能的预测研究和切削实验验证.研究结果表明,用实际生产推荐切削参数,干式切削情况下,新型硬质合金微坑车刀相比原车刀,输入能量降低8.96%,剪切能降低10.50%,摩擦能降低5.32%;刀具前刀面的切削温度与剪切能和摩擦能呈正相关关系;所建立切削能预测模型可为复杂切削条件下的切削能预测及前刀面切削温度研究提供参照.
Therefore, the research on the generation, transmission and transformation of cutting energy is particularly important for the study of cutting temperature.In this paper, a new type of special carbide micro-hole turning tool for 304 stainless steel is innovated Design as an example, through the cutting of the new micro-pit car turning tool and the original car cutting process can be compared to establish cutting tool cutting process and rake face temperature relationship model to carry out a new type of micro-cutting tool cutting energy and friction The results show that, with the actual production of recommended cutting parameters, the dry-cutting condition of the new type of micro-alloy carbide micro-turning tool compared to the original turning tool, the input energy decreased by 8.96%, the shear energy can be reduced 10.50% and the friction can be reduced by 5.32%. The cutting temperature of the rake face is positively correlated with the shear energy and the friction energy. The established cutting energy prediction model can be used to predict the cutting energy under complex cutting conditions and rake face cutting temperature Provide reference.