| CHU Cong,DAI Yong,SHEN Ming,GE Man,YE Jian-ling,YUAN Qiao-ling.Machinability of Strongly Constrained Abrasive Jet Polishing Based on Fluent Simulation[J],45(6):198-204 |
| Machinability of Strongly Constrained Abrasive Jet Polishing Based on Fluent Simulation |
| Received:January 21, 2016 Revised:June 20, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.06.030 |
| KeyWord:constrained waterjet polishing simulation Fluent optical glass |
| Author | Institution |
| CHU Cong |
Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| DAI Yong |
Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| SHEN Ming |
Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| GE Man |
Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| YE Jian-ling |
Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| YUAN Qiao-ling |
Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
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| Abstract: |
| Objective To solve the problems in traditional waterjet processing such as the impact damage by wears force, the divergency of abrasive jet, the machining efficiency and utilization efficiency of energy. Methods A new method, constrained abrasive jet polishing, was brought forward. A constrain was applied at the end of the nozzle, enabling injection of po- lishing solution at relatively high speed in the direction tangential to the surface of the workpiece. Along with the experiment, the actual processing conditions were selected as the simulation parameters, and a Fluent software was applied to analyze the effects of diameter and concentration of abrasive on the processing. After simulation, the corresponding pressure curve was gained. And in the basic of simulation, the experiment proved the reliability of simulation and the feasibility of processing. Results The results showed that the abrasive of 10 μm in diameter had the largest pressure on the workpiece among the five diameters, reaching up to 0.185 MPa, and the abrasive with 15% mass fraction had the largest pressure on the workpiece among the four concentrations, reaching up to 0.19 MPa. Therefore, the best processing parameters for abrasive were 10 μm in diameter and 15% concentration. Within 8 hours, the roughness of workpiece presented a decline of up to 239 nm, and the material removal rate was 6.9 mg/h. Conclusion The method of constrained abrasive jet polishing, which could lead to high speed of abrasive jet on the surface of workpiece, improved the efficiency of processing. On the other hand, the decline of the roughness on the workpiece surface and the weight loss of the workpiece proved that this method had a good effect. |
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