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本文介绍了磨粒流动力光整加工的原理,基于Navier-Stokes方程和流体流动连续性方程,建立了磨粒流动力光整加工中硬质合金棒与工件楔形接触区流体动压力的三维模型;应用Matlab对接触区三维流体动压力进行求解,结果表明:流体动压力随硬质合金棒转速和磨粒流动力粘度的增大而增大,随硬质合金棒与工件之间间隙的增大而减小。压力峰值发生在最小间隙区域,当间隙逐渐变大时,峰值区域逐渐前移并且变宽。在硬质合金棒浸入磨粒流深度方向,除边缘处有侧泄外,流体动压力相同。
Based on the Navier-Stokes equation and the fluid continuity equation, a three-dimensional model of hydrodynamic pressure at the wedge contact area between the carbide rod and the workpiece is established The dynamic pressure of the three-dimensional fluid in the contact zone was solved by Matlab. The results show that the fluid dynamic pressure increases with the increase of the rotating speed of the carbide rod and the viscosity of the abrasive particle. With the increase of the gap between the carbide rod and the workpiece Big and small. Peak pressure occurs in the region of the smallest gap, when the gap becomes larger, the peak area gradually move forward and widen. In the carbide rod immersed in the direction of the depth of abrasive flow, except at the edge of the side vent, the fluid dynamic pressure the same.