AISI1045号淬硬钢车削加工过程中刀具磨损预测

发布时间：2018-02-13 09:50

本文关键词： 淬硬钢车削加工刀具磨损预测有限元仿真　出处：《机械设计与研究》2017年01期 　论文类型：期刊论文

【摘要】：刀具磨损是车削加工淬硬钢等硬质材料过程中一直存在的一个难题,因而对刀具磨损和刀具寿命的进行定量预测具有重要的意义。建立了车削加工过程刀具磨损预测模型,并对该模型进行仿真分析和实验验证。以前的相关研究在分析刀具磨损的大小和位置时,大都是基于磨粒磨损、缺陷扩散或黏着磨损等机理建立单一的数学模型,预测结果会有较大的偏差。为了克服此缺陷,综合考虑磨粒磨损、缺陷扩散及黏着磨损等三种刀具磨损机理的影响,采用了一种新的刀具磨损预测耦合模型。然后将建立的磨损模型导入到有限元分析软件Deform-3D中,并对车削淬硬钢的加工过程进行模拟,分析中刀具的磨损规律;最后选用CBN刀具车削AISI 1045号淬硬钢进行实验研究,验证和评估预测模型的可靠性。结果表明,实验与仿真分析的结果具有很好的一致性,预测模型是可靠和有价值的。
[Abstract]:Tool wear is a difficult problem in turning hardened steel and other hard materials, so it is very important to predict tool wear and tool life quantitatively. The model is simulated and verified by experiments. In analyzing the size and position of tool wear, a single mathematical model is established based on abrasive wear, defect diffusion or adhesion wear. In order to overcome this defect, the wear mechanism of abrasive wear, defect diffusion and adhesion wear are considered comprehensively. A new coupling model of tool wear prediction is adopted, and then the established wear model is introduced into the finite element analysis software Deform-3D, and the machining process of turning hardened steel is simulated, and the tool wear law is analyzed. Finally, the CBN tool is used to lathe AISI 1045 hardened steel to verify and evaluate the reliability of the prediction model. The results show that the experimental results are in good agreement with the simulation results, and the prediction model is reliable and valuable.
【作者单位】：江南大学江苏省食品先进制造装备技术重点实验室;
【基金】：国家04重大专项资助项目(2015ZX04002022-006)
【分类号】：TG51

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