1. Cutting |
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Starting stock cut to size by weight is first rounded, then upset to achieve structural integrity and directional grain flow. |
2. Upsetting |
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Workpiece is punched, then pierced to achieve starting “donut” shape needed for ring rolling process. |
3. Forming |
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Completed preform ready for placement on ring mill for rolling. |
4. Peircing |
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Ring rolling process begins with the idler roll applying pressure to the preform against the drive roll. |
5. Ring Rolling |
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Ring diameters are increased as the continuous pressure reduces the wall thickness. The axial rolls control the height of the ring as it is being rolled. |
6. Sizing |
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The process continues until the desired size is attained. |