Patent ID: 6134768
Filing Date: 2000-10-24
Classification: B21D,F04D,F05D,H02K,Y10T

Abstract:
A method of producing a connection between an insert element and a tubular part by means of flanging, the method comprising the steps of: forming in the tubular part an area which is enlarged in diameter over at least a part of a circumference of the tubular part, is spaced from axial ends of the tubular part, and has an axial length substantially corresponding to an axial size of the insert element; inserting the insert element into the tubular part until the insert element comes to rest against a detent formed on the tubular part adjacent an axial end portion of the enlarged area, so that the insert element is positioned adjacent an edge of one axial end of the tubular part and a space is provided between the insert element and the enlarged area of the tubular part in a radial direction in relation to the longitudinal axis of the tubular part; pushing the enlarged area radially inwards in relation to the longitudinal axis by means of a tool element to elastically deform the area so that the tubular part is longitudinally stretched without deformation of the insert element; and flanging the edge of the tubular part radially inwardly in relation to the longitudinal axis while the tubular part is stretched, so as to fix the insert element in place in the direction of the longitudinal axis between the detent and the edge of the tubular part.