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首页> 外文会议>International Conference on Electrical and Control Engineering >The Influence of Tool Flank Wear and Depth of Cut on Temperature Fields Based on Johnson-Cook Model in Dry Hard Machining
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The Influence of Tool Flank Wear and Depth of Cut on Temperature Fields Based on Johnson-Cook Model in Dry Hard Machining

机译：基于Johnson-Cook模型的干硬加工中刀具侧面磨损和切削深度对温度场的影响

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Temperature is considered to be one of the most important aspects to take into account in dry hard machining. However, dry hard machining is a complex process, and the temperature is the most difficult to be measured when machining. Up to now, only very few studies have been reported on influence of tool wear and depth of cut on temperature fields produced during dry hard machining AISI D2 steel in its hardened state (60-62HRC). In this paper, ALE formulation with techniques such as adaptive meshing, which effectively avoided difficulty of chip formation when using Eulerian formulations, was utilized to propose finite element model based on the well known Johnson--Cook model and the Brozzo's facture criteria. This finite element mode was properly calibrated by means of an iterative procedure based on the comparison between experimental results from literatures and numerical data. At last, this finite element mode was utilized to predict influence of tool wear and depth of cut on temperature fields and applicability of the adiabatic conditions at dry hard machining hardened D2 steel. From this study, it was also possible to properly analyze the influence of tool wear and depth of cut on the temperature fields for industrial application.
机译：温度被认为是干硬加工中要考虑的最重要方面之一。但是，干硬加工是一个复杂的过程，加工时最难测量温度。迄今为止，只有极少的研究报道了刀具磨损和切削深度对在硬化状态（60-62HRC）的干硬加工AISI D2钢过程中产生的温度场的影响。在本文中，利用诸如自适应网格划分等技术的ALE公式有效地避免了使用欧拉公式时切屑形成的困难，并基于著名的Johnson-Cook模型和Brozzo的制造标准提出了有限元模型。该有限元模式通过基于文献的实验结果与数值数据之间的比较的迭代过程进行了适当的校准。最后，这种有限元模式被用来预测工具磨损和切削深度对温度场的影响以及绝热条件在干硬加工硬化D2钢上的适用性。从这项研究中，也有可能适当地分析工具磨损和切削深度对工业应用温度场的影响。

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