| TiC/Ni金属陶瓷电火花加工温度场仿真研究 |
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| 引用本文： | 冯业瑞,郭永丰,李宗峰.TiC/Ni金属陶瓷电火花加工温度场仿真研究[J].电加工与模具,2016(2). |
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| 作者姓名： | 冯业瑞 郭永丰 李宗峰 |
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| 作者单位： | 哈尔滨工业大学机电工程学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目(51275110)；哈尔滨科技创新人才项目(2015RACXXJ026) |
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| 摘 要： | 为深入研究TiC/Ni金属陶瓷电火花加工过程,进行了TiC/Ni金属陶瓷电火花加工单脉冲放电温度场仿真。建立了TiC/Ni金属陶瓷颗粒随机分布模型,运用ANSYS软件采用生死单元法对TiC/Ni金属陶瓷进行单脉冲温度场仿真研究,并对结果进行了实验验证。结果表明:TiC/Ni金属陶瓷颗粒随机分布模型适于TiC/Ni金属陶瓷电火花加工温度场仿真,且随着峰值电流及脉宽的增大,TiC/Ni金属陶瓷蚀除体积增加,表现为试验时材料蚀除率增加。
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| 关 键 词： | 电火花加工 温度场仿真 颗粒随机分布模型 生死单元法 |
Study on Temperature Filed Simulation During Electro-discharge Machining of TiC/Ni Cermet |
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| Abstract: | To study electro-discharge machining (EDM) process of TiC/Ni cermet ,the temperature field simulation of single pulse EDM of TiC/Ni cermet was carried out ,the randomly distribution model of TiC/Ni cermet particles was established. The single pulse temperature field was simulated using birth-death element method based on ANSYS software. Experimental results verify that the model is suitable for EDM temperature field simulation of TiC/Ni cermet. The results also show that with increase of peak current and pulse-on time ,due to increase of material removal rate ,material removal volume of TiC/Ni cermet increase. |
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| Keywords: | EDM temperature filed simulation particles randomly distribution model birth-death element method |
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