| LYU Chun-lan.Experimental Research on Surface Roughness of Titanium Alloy by Centrifugal Grinding Process[J],45(6):213-217 |
| Experimental Research on Surface Roughness of Titanium Alloy by Centrifugal Grinding Process |
| Received:January 28, 2016 Revised:June 20, 2016 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2016.06.032 |
| KeyWord:titanium alloy centrifugal grinding surface secondary refining single factor experiment surface roughness surface topography |
| Author | Institution |
| LYU Chun-lan |
College of Information & Control Engineering, Jilin Institute of Chemical Technology, Jilin , China |
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| Abstract: |
| Objective To explore the influence of centrifugal grinding automation processing technology on surface roughness of titanium alloy. Methods Single factor experiments were conducted using the main process parameters affecting grinding results. The process parameters were analyzed and optimized by selecting surface roughness as the evaluation index. Using the optimized process parameters, this paper conducted the experiment of surface grinding on TC21 titanium alloy. On this basis, the influence of surface secondary refining process on surface roughness of TC21 titanium alloy was studied, and the surface roughness and surface topography of the workpiece before and after processing were compared. Results The experiments determined the optimal parameters of centrifugal grinding TC21 titanium alloy: alumina as abrasive material, abrasive particle size of 5 mm, and drum rotation speed of 240 r/min. After processing with the optimized parameters, the surface roughness of the workpiece decreased from 1.412 μm to 0.513 μm; after surface secondary refining processing, the surface roughness of the workpiece decreased from 0.513 μm to 0.267 μm. Besides, the texture and defects disappeared. Conclusion Good experimental results were obtained under the optimized processing conditions. In combination with the surface secondary refining processing, the surface roughness of TC21 titanium alloy fell by two levels, and surface defects were fixed. The experimental results verified the feasibility of centrifugal grinding processing on TC21 titanium alloy. |
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