关键词: 电火花修整；金刚石砂轮；数值模拟；温度场

Abstract:

A simulation model established by finite element methods using ANSYS software shows the distribution temperature field on the diamond wheel. The actual dressing experiment was conducted by the same EDM parameters as the numerical simulation model. And the wheel surface topographies before and after dressing was observed by optical microscope (KEYENCE VH-8000 Digital HD).The analyses show that the theoretical calculation results are consistent with those of experiments under the same experimental conditions. The simulation model is benefit to quality forecast, parameter regulation and optimization in the process of truing and dressing diamond wheel. It also helps to avoid that high temperature make diamond grain graphitization or the temperature is not high enough to remove the metal bond well. The simulation model can keep from the blindness to true and dress diamond wheel directly.

Key words: electrical discharge dressing and truing, diamond grinding wheel, numerical simulation, temperature field