Role of friction in prediction and control ellipticity of high-strength casting aluminum alloy tube during hot power backward spinning
| Autor: | Huan Yu, Gangyao Zhao, Ranyang Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Mechanical Engineering Alloy chemistry.chemical_element 02 engineering and technology Deformation (meteorology) engineering.material Industrial and Manufacturing Engineering Computer Science Applications Mechanism (engineering) Mandrel 020901 industrial engineering & automation chemistry Control and Systems Engineering Casting (metalworking) Aluminium engineering Composite material Tube (container) Spinning Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 102:2709-2720 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-019-03336-7 |
| Popis: | Friction between the tube and spinning tools is one of the main factors that affected the uneven deformation in hot power backward spinning process of a high-strength casting aluminum alloy tube, which has a significant and complicated influence on the onset of the ellipticity in the process. To study the effect of the friction on the ellipticity, a 3D coupled thermo-mechanical FE model of the process was built based on ABAQUS/Explicit code and validated by experiment. Then, the influence law and the mechanism of friction between the spinning tools and tube on ellipticity of the tube during the process were studied. The results show that the ellipticity increases gradually with the increase of the friction between the roller, mandrel, and tube, while the effects of them on the ellipticity are relatively small in the first three passes. In pass 1, the ellipticity deceases progressively with the increase of the friction between the unloading ring and tube, and it increases slightly in passes 2, 3, and 4. In addition, the optimal combinations of the friction coefficient for each pass in the process were obtained based on the intuitive analysis of orthogonal experiment. Then, the selection principle of the friction coefficients was proposed to control the ellipticity of the process. The achievements of this study can provide a guideline for determining the friction coefficient between the spinning tools and tube during hot power backward spinning process of the high-strength casting aluminum alloy tube. |
| Databáze: | OpenAIRE |
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