Patent ID: 8539805
Filing Date: 2013-09-24
Classification: B21D

Abstract:
1. A method for manufacturing a product having various diameters from a workpiece, the method comprising: clamping a workpiece in a clamping device; rotating the workpiece and/or a first tool about a first axis of rotation relative to each other, the first tool having two or more forming rollers; deforming the workpiece with said first tool by placing the two or more forming rollers of the first tool into contact with the workpiece and moving the workpiece and/or the first tool in a direction along said axis of rotation; placing at least a second tool having two or more forming rollers into contact with the workpiece at a position behind the first tool; rotating the workpiece and/or the second tool about a second axis of rotation relative to each other; and deforming the workpiece with said second tool, wherein the first axis of rotation of the first tool and the second axis of rotation of the second tool are moved relative to each other during said working.