真空チャックのアルミ合金製部品と鋼製主軸の締結部における等価摩擦係数

概要

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This paper describes the equivalent friction coefficient on the connecting portion between chuck-part made of aluminum-alloy and spindle made of steel, which is obtained in the experiment. The tangential force is loaded by a PZT-element in the direction perpendicular to the bolt thrust. The tangential force and the bolt thrust are measured with load-sensor of Kistler and A/D converter, and the equivalent friction coefficient is calculated as the ratio of those forces. It is clarified that the equivalent friction coefficient of 0.15-0.25 is reasonable near the start of sliding displacement as the boundary condition of FEM analysis and that the coefficient gradually increases with the increase in sliding displacement between chuck-part and spindle under small displacement.
公益社団法人精密工学会の論文
2002-05-05