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Analysis of Process Forces for the Precision Honing of Small Bores

机译:小镗孔精密珩磨的过程力分析

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For the honing process the chip removal and therewith the material removal rate and the surface of the part after honing depend on the cutting pressure between the honing stone and the workpiece. In this paper an analytical model of the honing tool is used to make the contact surface between honing stone and workpiece as well as the in-process forces at the honing stone accessible from the geometry, positions and given process loads at the honing unit over different approaches without additional sensors. Exemplary paths of the cutting pressure dependent on the stroke position are then given for an assumed constant axial feeding force on the cone including friction as well as for an assumed constant torque along the axis of the honing tool. It is found that for active movement of the feeding cone the calculations from the feeding force and the torque along the tool are approximately equal. For reactive feeding movement because of high normal forces at the honing stone self-locking can occur for the given tool with small cone angle because of friction at the cone.
机译:对于珩磨过程,切屑的去除以及材料的去除率和珩磨后零件的表面取决于珩磨石和工件之间的切削压力。在本文中,使用珩磨工具的分析模型来使珩磨石与工件之间的接触表面以及珩磨石上的过程中力可以从不同位置,不同位置的珩磨单元处的几何形状,位置和给定过程载荷中获取无需其他传感器的方法。然后,针对在圆锥上的包括摩擦的假定的恒定轴向进给力以及沿着珩磨工具的轴线的假定的恒定扭矩,给出取决于行程位置的切削压力的示例性路径。已经发现,对于进给锥体的主动运动,由进给力和沿着工具的扭矩的计算近似相等。对于反作用进给运动,由于在珩磨头上的高法向力,对于给定的圆锥角较小的刀具,由于圆锥处的摩擦会发生自锁。

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