深冷处理D2工具钢线切割加工数值分析

发布时间：2018-04-16 23:16

本文选题：深冷处理D工具钢 + 线切割加工　；参考：《工具技术》2016年11期

【摘要】：以深冷处理D2工具钢为研究对象,建立其在线切割加工过程中的能量比、单位时间去除材料体积、工件加工表面粗糙度数值计算模型,运用MATLAB软件进行分析,并用试验验证。仿真分析及试验验证的结果表明:随着加工电流和脉冲宽度的增加,能量比不断增加;随着加工电流的增加,单位时间去除材料体积逐渐增加,而随着脉冲宽度的增加,单位时间去除材料体积呈现逐渐减小的趋势;随着加工电流和脉冲宽度的增加,工件加工表面粗糙度呈现先减小后增加趋势;单位时间去除材料体积、工件加工表面粗糙度的仿真计算值与试验测量值最大相对误差分别为4.76%、4.75%,相对误差较小,验证数值分析的正确性,为工具钢线切割加工最佳工艺参数选择及工艺优化提供理论依据。
[Abstract]:Taking the cryogenic D2 tool steel as the research object, the numerical calculation model of energy ratio, material volume removal per unit time and workpiece surface roughness in the process of wire cutting is established. The model is analyzed by MATLAB software and verified by experiments.The results of simulation analysis and experimental verification show that the energy ratio increases with the increase of machining current and pulse width, the volume of material removed per unit time increases gradually with the increase of processing current, and with the increase of pulse width, the energy ratio increases with the increase of processing current and pulse width.With the increase of machining current and pulse width, the surface roughness of workpiece decreases first and then increases.The maximum relative error between the simulated and measured values of workpiece surface roughness is 4.76 and 4.75, respectively, and the relative error is small, which verifies the correctness of the numerical analysis.It provides a theoretical basis for the selection of optimum process parameters and process optimization for wire cutting of tool steel.
【作者单位】：吉林工业职业技术学院;
【基金】：吉林省教育厅项目(2014460)
【分类号】：TG48

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