| GAO Chao,WANG Sheng,WANG Hui,LIU Guang-zhao,WU Guo-rong.Theoretical Prediction and Sensitivity Analysis of Surface Roughness of Abrasive Belt Grinding[J],47(11):295-305 |
| Theoretical Prediction and Sensitivity Analysis of Surface Roughness of Abrasive Belt Grinding |
| Received:February 13, 2018 Revised:November 20, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.11.042 |
| KeyWord:electroplated diamond belt tempered glass grinding roughness theoretical model sensitivity |
| Author | Institution |
| GAO Chao |
1.School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang , China |
| WANG Sheng |
1.School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang , China |
| WANG Hui |
1.School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang , China |
| LIU Guang-zhao |
1.School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang , China |
| WU Guo-rong |
2.School of Mechanical Engineering, Southeast University, Nanjing , China |
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| Abstract: |
| The work aims to adopt the edge-grinding of tempered glass as the research object to establish the theoretical prediction model of the surface roughness of diamond abrasive belt grinding and analyze the sensitivity of the roughness to the process factors. Firstly, the theoretical prediction model of roughness for grinding process parameters was established by multi factor linear regression analysis. Secondly, the influences of grinding pressure, line speed and tensioning force of abrasive belt on the roughness and material removal rate were studied by orthogonal test, and the optimum combination of process parameters was obtained. Thirdly, the mathematical expression for theory prediction model of roughness was calculated according to the orthogonal test results. Meanwhile, the sensitivity models were established for sensitivity analysis of process factors and optimization of process parameters. Finally, the accuracy of the roughness theory prediction model was verified by random experiments. From the range analysis, RA(0.137)?RC(0.068)?RB(0.016) and MC(6.828)?MA(5.228)?MB(1.784) and the excellent level combination of grinding process parameters was A2B3C3. The expression of the theoretical prediction model for surface roughness of electroplated diamond abrasive belt grinding was described as and the optimum selection interval of each process parameter was grinding pressure of 10~20 N, linear velocity of 15~30 m/s and tensioning force of 40~60 N. From the random tests, relative error of roughness theory prediction model was maintained at 5.5%~10%. The influence of process factors on roughness is significantly contributed by grinding pressure and then slightly caused by tensioning force, while line speed has the least influence. The influence of process factors on material removal rate is seriously caused by tensioning force and then slightly contributed by grinding pressure, while line speed still has the least influence. The grinding quality is the best and the material removal rate is the highest when the grinding pressure is 18 N, the belt line speed is 30 m/s, and the belt tensioning force is 55 N. In the range of test parameters, the sensitivity of roughness to grinding pressure decreases with the increase of grinding pressure, and the sensitivity to linear velocity and tensioning force increases with the increase of the two factors. The 15 sets of random tests show that the roughness theory prediction model has high reliability and accuracy. |
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