Patent ID: 8621733
Filing Date: 2014-01-07
Classification: B21C,B23K,B24B,Y10T

Abstract:
1. A device for preparing end faces of thin-walled jackets for welding, the device comprising: a housing; an annular separator on the housing and centered on a center axis; and first and second groups of elongated cylindrical deformation rollers centered on respective longitudinal axes all lying in a common plane, the longitudinal axes of the deformation rollers of the first group being oriented radially to the center axis of the separator and the longitudinal axes of the deformation elements of a second group being oriented at an acute angle with regard to respective radii extending from the center axis of the separator, both groups of deformation rollers being arranged in sectors distributed in an angularly spaced manner about the center axis, the ratio of the number of deformation rollers of the first group to the number of deformation rollers of the second group amounting to between 3:1 and 6:1.