Impact of bending dies with different friction forms on forming force and quality of tubes manufactured by free bending technology
| Autor: | Long Jiang, Ali Abd El-Aty, Hui Wang, Tao Li, Yong Zhang, Yao Qin, Xunzhong Guo, Hao Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0209 industrial biotechnology
business.product_category Materials science Bending die Rolling friction Rolling resistance Bent molecular geometry Forming force Spherical bearing force Aerospace Engineering 02 engineering and technology Bending 01 natural sciences Spherical bearing 010305 fluids & plasmas 020901 industrial engineering & automation Quality (physics) 0103 physical sciences Tube (container) Composite material Cross-section distortion Motor vehicles. Aeronautics. Astronautics Wall thickness Mechanical Engineering TL1-4050 Die (manufacturing) business Sliding friction |
| Zdroj: | Chinese Journal of Aeronautics, Vol 34, Iss 4, Pp 253-264 (2021) |
| ISSN: | 1000-9361 |
| Popis: | In the 3D free bending forming system, the bending die can be designed either in a sliding type or rolling friction type. Bending die-based sliding friction type is often called normal bending dies; however, the bending dies-based rolling friction type includes bending die-based roller type and ball type in structure. In the current study, the impact of three bending dies on the forming force, and the bent tube quality was investigated. The obtained results showed that the tangential stresses and strains of the tubes formed by the bending die-based roller type were the smallest among the three bending dies. Besides, the spherical bearing force PU was reduced drastically after using the roller type and ball type compared to the sliding friction type. Moreover, the uniformity of the wall thickness distribution of the tubes formed by the roller type and ball type was better than those obtained from the sliding friction type. In addition, the cross-section distortion rate was reduced by 2.8% using the roller type, and 1.8% using ball-type compared to the sliding friction type. |
| Databáze: | OpenAIRE |
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