| DENG Qian-fa,GUO Chen-xi,YUAN Ju-long,ZHOU hui,LYU Bing-hai,Duc-Nam Nguyen.Simulation and Experimental Study on Polishing Inner Surface of Tubule by Self-excited Oscillation Abrasive Flow[J],48(10):363-371 |
| Simulation and Experimental Study on Polishing Inner Surface of Tubule by Self-excited Oscillation Abrasive Flow |
| Received:February 04, 2019 Revised:October 20, 2019 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2019.10.045 |
| KeyWord:tubule inner surface self-oscillation pulse characteristics abrasive flow polishing stainless steel tube inner wall |
| Author | Institution |
| DENG Qian-fa |
1.a.Ultra-precision Machining Center, b.Key Laboratory of Special Equipment Manufacturing and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| GUO Chen-xi |
1.a.Ultra-precision Machining Center, b.Key Laboratory of Special Equipment Manufacturing and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| YUAN Ju-long |
1.a.Ultra-precision Machining Center, b.Key Laboratory of Special Equipment Manufacturing and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| ZHOU hui |
1.a.Ultra-precision Machining Center, b.Key Laboratory of Special Equipment Manufacturing and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| LYU Bing-hai |
1.a.Ultra-precision Machining Center, b.Key Laboratory of Special Equipment Manufacturing and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou , China |
| Duc-Nam Nguyen |
2.Hochiminh University of Industry, HoChi Minh City , Vietnam |
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| Abstract: |
| The work aims to polishing the inner surface of tubule or microholes which is hard to do by traditional polishing method. A novel abrasive flow polishing method (SOAFP) based on self-oscillation pulse characteristics was proposed. Self-excited oscillation cavity was used to produce the pulsation of abrasive flow, which can efficiently polish the inner surface of the tubule or microhole. The mathematical model was established and the numerical simulation was carried out, the structural parameters d2/d1, L/D and transition angle β were obtained. The experimental platform was built and the effectiveness of SOAFP was verified by experiments. The result shows that the roughness of the inner surface of stainless steel tubule Ra was reduced from 480 nm to 50 nm after 12 hours of processing of SOAFP, with no obvious directional texture, and 14 hours later, the inner surface of stainless steel tubule had obvious mirror effect. In the case of non-oscillation cavity, the surface roughness of the inner wall of the tubule was 55 nm after 14 hours of polishing, and there was obvious directional texture on the inner surface. The simulation and experiments show the effectiveness of self-excited oscillation pulse effect polishing method (SOAFP), and the improvement of polishing effect and quality by the structure parameters of the structural parameters d2/d1, L/D and transition angle β. |
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