Method for welding components with a closed hollow cross-section in such a way that a peripheral gap is produced between the two overlapping components

Abstract

A method for joining a first housing component to a second housing component by welding. The first housing component and the second housing component each have hollow bodies with closed hollow cross sections. It is provided that the hollow cross sectional shapes of both components correspond. The outside dimension of the second housing component is smaller than the inside dimension of the first housing component. The second housing component is disposed in the first housing component to create a peripheral gap between an inner wall of the first housing component and an outer wall of the second housing component. The first housing component is welded to the second housing component in the region of the gap between the first and the second housing component. A housing for an injection valve that is manufactured in accordance with the method.

1 - 14 . (canceled) 
     
     
         15 . A housing for an injection valve, comprising:
 a first housing component; and   a second housing component joined to the first housing component by welding;   wherein the first housing component has a first inside dimension, the first housing component and the second housing component each being constituted as hollow bodies having a closed hollow cross section, a shape of the hollow cross section of the second component corresponding to a shape of the hollow cross section of the first component,   wherein the second housing component has an outside dimension, the outside dimension of the second housing component being smaller than the inside dimension of the first component,   wherein the second housing component is disposed in the first housing component so that a peripheral gap is constituted between an inner wall of the first housing component and an outer wall of the second housing component, the region having a gap between the two housing components being a joining region, and   wherein the first housing component is welded by laser welding to the second housing component in the joining region of the gap between the first and the second housing components, and   wherein there is a welding connection in the joining region which in a radial direction starting from an outer side of the first housing component runs through the wall of the first housing component as well as all the way through the gap via the outer side having the dimension of the second housing component into the second housing component, the first housing component in the region of the welding connection being drawn in all the way to lying against the outer side of the second housing component.   
     
     
         16 . The housing of  claim 15 , wherein an inside dimension of the first housing component, at the joining region, is larger than an outside dimension of the second housing component so that before the welding. 
     
     
         17 . The housing of  claim 15 , wherein one of the following is satisfied: (i) the gap has a uniform thickness before welding, and (ii) the gap has a tapering shape. 
     
     
         18 . The housing of  claim 15 , wherein the first and the second housing component each have a circular or oval cross section. 
     
     
         19 . The housing of  claim 15 , further comprising:
 a compression connection region between the first and the second housing component.