| LIU Ze-yu,WEI Xin,XIE Xiao-zhu,HUA Xian-gang,HONG Ji-wei.Influence of Surface Micro Texture with Laser Processing on the Friction and Wear Performance of Ceramic Cutter[J],44(10):33-39 |
| Influence of Surface Micro Texture with Laser Processing on the Friction and Wear Performance of Ceramic Cutter |
| Received:June 30, 2015 Revised:October 20, 2015 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2015.10.006 |
| KeyWord:micro texture ceramic cutter laser machining friction and wear performance friction coefficient wear morphology |
| Author | Institution |
| LIU Ze-yu |
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou , China |
| WEI Xin |
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou , China |
| XIE Xiao-zhu |
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou , China |
| HUA Xian-gang |
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou , China |
| HONG Ji-wei |
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou , China |
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| Abstract: |
| Objective To optimize the morphology of micro texture on ceramic cutter surface in order to obtain micro texture with better antifriction performance. Methods Through friction and wear experiment, the influence of micro texture on the friction and wear performance of ceramic cutter was studied using single factor studies. Surface friction coefficient under different morphology was measured and the wear morphology was inspected. Through the finite element analysis software ABAQUS, the friction process of micro texture surface was analyzed. The effect of different texture on stress distribution of the cutter was studied. Results Under the condition of 90 N, 300 r / min, 30 min in the friction and wear test, the friction coefficient of the tool was about 0. 42, the radial micro texture on ceramic cutter surface, namely the direction of micro texture was vertical with the direction of motion had a low friction coefficient of only about 0. 35. The stress concentration on the surface of the cutter without texture occurred in the forefront of deputy contact with the cutter grinding, which ranged from about 16. 68 MPa to 18. 19 MPa. Stress concentration was easy to cause partial wear. When the directions of micro texture and speed were vertical, the equivalent stress value ranged from about 21. 96 MPa to 31. 37 MPa. The stress distribution was more even, the stress was on both sides of the groove and the cutter was more wear-resisting. Conclusion Compared to cutter without texture, the cutter processed with micro texture such as radial micro texture, cross micro texture and crater texture reduced the surface friction coefficient, improved the wear resistance performance. And the stress distribution was more homogeneous. |
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