Influence of Installing Error on the Surface Shape Precision of the Axial Symmetry Aspheric Workpiece in Lapping |
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Authors: | SHANG Chun-min ZHANG Dong-mei YANG Jian-dong ZHANG Xin-ming |
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Affiliation: | College of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022 Jilin, China |
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Abstract: | A method to calculate the surface shape error, which is caused by the installing error between the workpiece and the lapping tool in the process of form lapping, is proposed. The mathematical model which the installing translation error influences on the workpiece surface shape error is established. The changing rule of the error is simulated through the calculating example of the paraboloid workpiece. The results indicate that the surface shape error of the workpiece is increasing with the increase of the installing translation error, it is also increasing gradually along the center point of the curve surface to the edge, and the influence is severer to the curve surface with great curvature than that of the small curvature when the translation error is the same. |
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Keywords: | aspheric surface form lapping error surface shape precision Symmetry Axial Precision Surface Shape Error influences small curvature gradually center point curve surface edge results increasing increase rule simulated example |
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