Stainless Steel Tube Trade Advancement Committee
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Cold Pilgering

The grooves in the rolls are conical. The tube is gradually (step by step) squeezed to a smaller OD. At the same time the wall thickness is rolled down over a mandrel. For each stroke the tube is moved forward when the rolls loosen their grip of it. The tube is also turned approximately 60° for each stroke to make it perfectly round.

Pilger Mill


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