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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Predictive modeling for flank wear progression of coated carbide tool in turning hardened steel under practical machining conditions
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Predictive modeling for flank wear progression of coated carbide tool in turning hardened steel under practical machining conditions

机译：实际加工条件下车削淬硬钢中涂层硬质合金刀具的侧面磨损进展的预测模型

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摘要

Growing needs for economical and environmental friendly manufacturing processes have increased usage of coated carbide tools in dry and high-speed machining of hardened steel. However, most undesirable characteristic of the machining process is tool wear; especially the flank wear, which adversely affects the dimensional accuracy and product quality. Therefore, prediction of flank wear progression will be extremely valuable. In the present study, a flank wear rate model is developed incorporating abrasion, adhesion, and diffusion as dominant wear mechanisms. Given the cutting conditions, tool geometry, and workpiece and cutting tool material properties, the model predicts flank wear progression with machining time. Developed model is calibrated and experimentally validated in turning of hardened AISI 4340 steel at different levels of hardness using chemical vapor deposition (CVD)-applied multilayer TiCN/Al2O3/TiN-coated carbide tool under practical 3-D machining conditions. As predicted results generally agree well with the experimental observations, proposed model could be helpful to predict the flank wear progression and hence to support the optimization studies within the domain of the cutting parameters.
机译：对于经济和环保的制造工艺的日益增长的需求，已在硬钢的干式和高速加工中增加了涂层硬质合金刀具的使用。但是，机加工过程最不希望出现的特征是刀具磨损。特别是侧面磨损，这会严重影响尺寸精度和产品质量。因此，预测侧面磨损的进展将非常有价值。在本研究中，开发了将磨损，粘附和扩散作为主要磨损机制的侧面磨损率模型。在给定切削条件，刀具几何形状以及工件和切削刀具材料特性的情况下，该模型可预测侧面磨损随加工时间的变化。在实际的3D加工条件下，使用化学气相沉积（CVD）施加的多层TiCN / Al2O3 / TiN涂层硬质合金刀具在不同硬度水平下对硬化的AISI 4340钢进行车削时，将对开发的模型进行校准和实验验证。由于预测的结果通常与实验观察结果非常吻合，因此所提出的模型可能有助于预测侧面磨损的进程，从而支持切削参数范围内的优化研究。

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