The Effect of Ceramic film on the Coated Ball Strengthin Linear Guide

• Main Authors: Hsiu-yi Wei, 韋秀逸
• Other Authors: Jao-Hwa Kuang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/4g8njy

碩士 === 國立中山大學 === 機械與機電工程學系研究所 === 103 === The 3D Hertz stress distributions of steal, ceramic film coated and ceramic rollers in linear guide design are simulated and investigated. The ANSYS 140 Finite Element software package with elastic-plastic element model is employed in the stress and deformation simulation. The difference of material properties of coating film make the 3D contact stress distribution so very complicate. The effect of film thickness on the contact stress and deformation are the spot points be evaluated in this study. The geometry parameters ; i.e. the radii of curvature of roller and rail, coated film thickness, film material, friction coefficient, and temperature, on the effect of contact stress and deformation are investigated. The maximum principle stress and distribution energy failure theories have been employed to illustrate the brittle and elastic features of coated ceramic film and steel rail in the linear guide design. The best film thickness of coated ceramic film for different loading cases have also been proposed.