基于Deform-3D轴向超声辅助磨削仿真试验

发布时间：2018-08-09 08:18

【摘要】：磨削过程可视为大量随机分布磨粒切削形成的累积效应,因此可以把复杂的磨削过程简化为单颗磨粒的切削过程。提出了一种新的超声辅助单颗磨粒磨削的仿真方法:利用Deform-3D软件,对轴向超声振动辅助磨削时单颗磨粒的速度进行加载,完成磨削力和磨削温度的仿真。仿真结果表明:在相同磨削条件,超声振动辅助磨削弧区最高温度值低于普通磨削最高温度值;超声振动辅助磨削磨粒的法向磨削力及切向磨削力均小于普通磨削条件下所得到的磨削力;随着磨粒速度增加,磨削弧区温度升高,法向磨削力与切向磨削力下降,而其磨削力比增大;随着磨粒切削深度的增加,磨削弧区温度升高,法向磨削力与切向磨削力上升,而其磨削力比下降。
[Abstract]:The grinding process can be regarded as the cumulative effect of a large number of random distributed abrasive cutting, so the complex grinding process can be simplified as the cutting process of single abrasive particle. A new simulation method for ultrasonic assisted grinding of single abrasive particle is presented. The velocity of single abrasive particle in axial ultrasonic vibration assisted grinding is loaded by using Deform-3D software, and the grinding force and grinding temperature are simulated. The simulation results show that the maximum temperature of ultrasonic vibration assisted grinding arc is lower than that of common grinding under the same grinding conditions. The normal grinding force and tangential grinding force of ultrasonic vibration assisted grinding abrasive particles are smaller than those obtained under ordinary grinding conditions, and the normal grinding force and tangential grinding force decrease with the increase of grinding particle velocity, the temperature of grinding arc zone increases, the normal grinding force and tangential grinding force decrease, With the increase of grinding depth, the temperature of grinding arc increases, the normal grinding force and tangential grinding force increase, but the grinding force ratio decreases.
【作者单位】：上海理工大学;
【基金】：上海市研究生创新基金项目(JWCXSL1402)
【分类号】：TG580.6;TG663

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