| WANG Jing-po,SONG Chao,LING Yang,HANG Wei.The Uniformity of the Abrasive Flow Machining of Multi-way Pipe Joint[J],51(4):299-307 |
| The Uniformity of the Abrasive Flow Machining of Multi-way Pipe Joint |
| Received:June 05, 2021 Revised:October 03, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2022.04.031 |
| KeyWord:metal pipe joint abrasive flow machining surface roughness machining times processing channel material removal rate |
| Author | Institution |
| WANG Jing-po |
State-owned Wuhu Machinery Factory, Anhui Wuhu , China |
| SONG Chao |
Zhejiang University of Technology, Hangzhou , China |
| LING Yang |
Zhejiang University of Technology, Hangzhou , China |
| HANG Wei |
Zhejiang University of Technology, Hangzhou , China |
|
| Hits: |
| Download times: |
| Abstract: |
| This paper aims to improve the effect of the abrasive particle streamer finishing process of the multi-way pipe joint parts in the aviation oil circuit. Taking the three-way and four-way pipe joints were adopted as the research object, the experiment was designed for the material characteristics and structural characteristics of the samples. The effects of machining times and processing channels on the roughness of the inner wall of the pipe, material removal, and surface quality consistency in the multi-pass pipe joint abrasive flow finishing process were studied. At the beginning of machining, the roughness Ra of the pipe surface decreased slowly, and the roughness decreased rapidly after 60 s, after 240 s, the roughness of the pipe surface of the part decreases to around 150 nm, and then does not decrease. Elastic Abrasives first eliminated the rust layer and burrs on the pipe quickly and then removed the material to finish the pipe wall surface. The material removal rate of samples changes from fast to slow. The material removal rate of a three-way pipe joint is 0.829 2 g/h and that of a four-way pipe joint is 0.601 2 g/h. The processing pressure of the branch pipe was increased, and the uneven processing of the branch pipe and pipe corner was solved by changing the processing flow channel. Compared with a multi-outlet flow path, the overall surface quality of the inner wall of the pipe joint after machining of single outlet flow path was better. The extreme roughness Ra of 2 samples at 10 samples points was maintained near 20 nm, the extreme deviation was reduced by more than 50%, and the material removal efficiency of samples was increased by more than 30% in the same processing time. Through experimental research, the processing time and process parameters of the abrasive finishing process for typical tee and four-way multi-way metal pipe joints are determined, which improves the surface quality and processing efficiency. It has important reference and guiding significance for the abrasive finishing process of multi-way metal pipe joints. |
| Close |
|
|
|