Stretch Bending of Z-section Stainless Steel Profile
| Autor: | Gu Zhengwei, Li Xin, Meng-meng Lü, Xu Hong |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0209 industrial biotechnology
Materials science business.product_category Computer simulation business.industry Metals and Alloys 02 engineering and technology Structural engineering Bending Flange 020501 mining & metallurgy Section (fiber bundle) 020901 industrial engineering & automation 0205 materials engineering Mechanics of Materials Materials Chemistry Die (manufacturing) Surface modification Elongation business Shrinkage |
| Zdroj: | Journal of Iron and Steel Research International. 23:525-530 |
| ISSN: | 2210-3988 1006-706X |
| Popis: | The stretch bending properties of a new Z-section stainless steel profile were investigated by simulation. The causes of the forming defects, such as section distortions and poor contour precision, were analyzed, and the corresponding controlling methods were proposed. The results show that the main forming defects for the stretch bending of the Z-section profile were the flange sagging, the sidewall obliquing inward, the bottom surface upwarping, and the bad contour accuracy; the cross-section distortions were mainly induced by the shrinkage of the side-wall, which could be eliminated by increasing the sidewall height of the profile reasonably; the poor contour precision was mainly due to springback, which could be controlled by modifying the die surface based on the springback amount; for the investigated bending beam, the proper sidewall height compensation was 2 mm, and the suitable die surface modification amount was 1. 2 times of the springback amount, when the elongation was 10% of the initial profile length. Stretch bending tests were conducted on a new type of die with adjustable bending surfaces, and high quality components were achieved, which verified the effectiveness of the defect controlling measures. |
| Databáze: | OpenAIRE |
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