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| B4C陶瓷电火花工艺温度场仿真及试验研究 |
| Simulation and Experimental Study on Temperature Field of B4C Ceramic EDM Process |
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| DOI：10.16018/j.cnki.cn32-1650/n.202401012 |
| 中文关键词: B4C陶瓷 电火花方法 孔加工 单脉冲温度场 锥角 |
| 英文关键词: B4C ceramics electrical discharge machining hole machining single pulse temperature filed cone angle |
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| 摘要点击次数: 38 |
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| 中文摘要: |
| B4C陶瓷具有硬度高、密度低等特性，在军工装甲等领域应用前景广阔，但由于硬度高、脆性大，传统加工方法难以胜任孔、槽等加工。考虑半导电特性，拟采用电火花方法对其进行孔加工技术研究。利用ANSYS软件对电火花放电过程中的单脉冲温度场进行仿真建模，输出凹坑半径、深度及温度场数值，并引入锥角物理量进行仿真和试验比对。结果表明: 凹坑半径、深度随峰值电流、脉冲宽度增加而增加，温度场特点满足高斯热源正态分布；随着峰值电流、脉冲宽度的增加，仿真锥角和试验锥角数值更贴合。 |
| 英文摘要: |
| B4C ceramics have the characteristics of high hardness and low density, and have broad application prospects in military armor and other fields. However, due to high hardness and brittleness, traditional processing methods are difficult to process holes and slots. Considering the semi-conductive characteristics, the EDM method is proposed to study the hole machining technology. The single pulse temperature field in the process of electric spark discharge is simulated and modeled by ANSYS software. The radius, depth and temperature field of the pit are output, and the cone angle physical quantity is introduced for simulation and test comparison. The results show that the radius and depth of the pit increase with the increase of peak current and pulse width. The characteristics of the temperature field meet the normal distribution of the Gaussian heat source; the simulation cone angle and the test cone angle are more suitable with the increase of peak current and pulse width. |
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