Patent ID: 6012896
Filing Date: 2000-01-11
Classification: B21D,B21K,F04D,F05D

Abstract:
A process for producing a connection of an insert part which forms a pump part in a tubular part which forms a housing of a fuel-delivery pump for supplying fuel to an internal combustion engine of a motor vehicle by flanging, comprising the steps of inserting a pump part into a tubular housing from one end of the housing in a direction of a longitudinal axis of the housing so that the pump part comes to butt against a stop; flanging a projecting border of the tubular housing radially inward towards the longitudinal axis over the pump part so that the pump part is fixed in the direction of the longitudinal axis between the stop and the flanged border; providing in the housing at its end into which the pump part is introduced, a region at least over a part of a circumference of the housing with an outer section which is increased relative to a rest of the pump part; pushing an annular tool part with an opening over the housing from another end of the housing with a cross-section of the opening being smaller than the region of the housing with the increased outer cross-section and being at least as large as an outer cross-section of the rest of the housing; and performing a relative movement in direction of the longitudinal axis between the tool part and the housing with a result that the tool part is moved over the region of the housing with the increased outer cross-section, and the region of the housing with increased outer cross-section is forced radially inwardly toward the longitudinal axis outside the pump part with plastic deformation of the region of the housing with increased outer cross-section.