Push-bending method development of thin-walled tube with relative bending radius of 1 using sectional elastomers as mandrel
| Autor: | Fu Chunlin, Yubin Fan, Xu Xuefeng, Wu Yiwang, Wu Kongwei |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Mechanical Engineering Bend radius 02 engineering and technology Bending Elastomer Industrial and Manufacturing Engineering Computer Science Applications Mandrel 020901 industrial engineering & automation Natural rubber Control and Systems Engineering visual_art visual_art.visual_art_medium Shore durometer Tube (container) Composite material Deformation (engineering) Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 105:995-1008 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-019-04266-0 |
| Popis: | It is important for the thin-walled tube with relative bending radius of 1 to be bent with mandrel in order to avoid the defects such as wrinkling and cross-section distortion. In this paper, a novel push-bending method using sectional elastomers as mandrel was proposed to form the 5A02 thin-walled aluminum alloy tube with relative bending radius of 1 and 90° bending angle. Cylindrical polyurethane rubber (CPR) with shore hardness of 80A was chosen as the sectional elastomers. The influence of diameter (d), thickness (t), total length (L), and arrangement of CPR filler on the push-bending deformation of tube was first explored by means of simulations and experiments. According to the simulation results, 5A02 thin-walled aluminum alloy tube with relative bending radius of 1 was successfully fabricated with the sectional CPR as mandrel in the self-developed equipment of push-bending. The experimental results were in good agreement with the simulation results. The optimum parameters of CPR filler in push-bending process were obtained as follows: 37 mm diameter, a piece of CPR with 20 mm thickness contacted with the punch, and other 12 pieces of CPR with 10 mm thickness. |
| Databáze: | OpenAIRE |
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