Sheet metal part, in particular of an exhaust gas system

Abstract

The present invention relates to a sheet metal component ( 1 ), in particular of an exhaust system, having a body ( 2 ) comprising at least two shells ( 3, 4 ), having at least one pipe ( 5 ), wherein at least two shells ( 3, 4 ) are joined together along butt edges ( 8, 9 ) that are in contact, wherein at least two shells ( 3, 4 ) form a tubular connecting area ( 10 ) in contact with the pipe ( 5 ) on the outside, into which the butt edges ( 8, 9 ) of the shells ( 3, 4 ) that have been joined together extend, wherein the pipe ( 5 ) is joined to these shells ( 3, 4 ) by a welded seam ( 11 ) which extends along an edge ( 12 ) of the shells ( 3, 4 ) in the connecting area ( 10 ), running around the pipe ( 5 ) on the end with regard to the longitudinal direction ( 13 ) of the pipe. To improve the durability of the sheet metal component ( 1 ), the shells ( 3, 4 ) are designed in the connecting area ( 10 ) so that they protrude beyond a longitudinal end ( 14 ) of the butt edges ( 8, 9 ) in the longitudinal direction ( 13 ) of the pipe ( 5 ) and are spaced a distance apart from one another.

1 . A sheet metal component for an exhaust system comprising:
 a body comprising at least two shells wherein the at least two shells include butt edges;   at least one pipe;   a tubular connecting area created by the at least two shells, the connecting area adjacent to the pipe on the outside; and   a welded seam extending along an edge of the at least two shells in the connecting area, the edge surrounding the pipe on an end of the pipe with regard to the longitudinal direction of the pipe;   wherein the at least two shells are joined together along the butt edges and are in contact with one another;   wherein the interconnected butt edges of the at least two shells extend into the connecting area;   wherein the pipe is connected to the at least two shells by the welded seam;   wherein the at least two shells protrude in the connecting area over a longitudinal end of the butt edges in the longitudinal direction of the pipe and are spaced a distance apart from one another.   
   
   
       2 . The sheet metal component according to  claim 1 , characterized in that the edge of the at least two shells has a symmetrical course at least in a section which leads away from the longitudinal end of the butt edges. 
   
   
       3 . The sheet metal component according to  claim 1 , characterized in that in the connecting area the distance between the at least two shells increases with an increase in the distance from the longitudinal end of the butt edges. 
   
   
       4 . The sheet metal component according to  claim 1 , characterized in that the at least two shells are shaped in the connecting area so that a tangent to the curve of the end edge in the longitudinal end of the butt edges runs at a right angle to the longitudinal direction of the butt edges. 
   
   
       5 . The sheet metal component according to  claim 1 , characterized in that the at least two shells are shaped in the connecting area so that the curve of the end edge has an arc-shaped segment in the area of the longitudinal end of the butt edges. 
   
   
       6 . The sheet metal component according to  claim 1 , characterized in that the at least two shells protrude approximately one-third of the diameter of the pipe beyond the longitudinal end of the butt edges in the connecting area. 
   
   
       7 . The sheet metal component according to  claim 1 , characterized in that another pipe which is connected by a peripheral welded seam to an axial end of the outer pipe is inserted into the pipe. 
   
   
       8 . The sheet metal component according to  claim 7 , characterized in that the axial end of the outer pipe is shaped to be run in the same way as the curve of the end edge of the at least two shells. 
   
   
       9 . The sheet metal component according to  claim 7 , characterized in that the welded seam for connecting the inner pipe to the outer pipe and the welded seam for connecting the outer pipe to the at least two shells are designed as a two-plate lap seam or as a three-plate lap seam. 
   
   
       10 . The sheet metal component according to  claim 1 , characterized in that the sheet metal component is one of a shell bend, a catalytic converter, a particulate filter, a muffler, a pipe assembly and a pipe branch. 
   
   
       11 . The sheet metal component according to  claim 2 , characterized in that the sheet metal component is one of a shell bend, a catalytic converter, a particulate filter, a muffler, a pipe assembly and a pipe branch. 
   
   
       12 . The sheet metal component according to  claim 2 , characterized in that in the connecting area the distance between the at least two shells increases with an increase in the distance from the longitudinal end of the butt edges. 
   
   
       13 . The sheet metal component according to  claim 2 , characterized in that the at least two shells are shaped in the connecting area so that a tangent to the curve of the end edge in the longitudinal end of the butt edges runs at a right angle to the longitudinal direction of the butt edges. 
   
   
       14 . The sheet metal component according to  claim 2 , characterized in that the at least two shells are shaped in the connecting area so that the curve of the end edge has an arc-shaped segment in the area of the longitudinal end of the butt edges. 
   
   
       15 . The sheet metal component according to  claim 2 , characterized in that the at least two shells protrude approximately one-third of a diameter of the pipe beyond the longitudinal end of the butt edges in the connecting area. 
   
   
       16 . The sheet metal component according to  claim 2 , characterized in that another pipe which is connected by a peripheral welded seam to an axial end of the outer pipe is inserted into the pipe. 
   
   
       17 . The sheet metal component according to  claim 3 , characterized in that the at least two shells are shaped in the connecting area so that a tangent to the curve of the end edge in the longitudinal end of the butt edges runs at a right angle to the longitudinal direction of the butt edges. 
   
   
       18 . The sheet metal component according to  claim 3 , characterized in that the at least two shells are shaped in the connecting area so that the curve of the end edge has an arc-shaped segment in the area of the longitudinal end of the butt edges. 
   
   
       19 . The sheet metal component according to  claim 3 , characterized in that the at least two shells protrude approximately one-third of the diameter of the pipe beyond the longitudinal end of the butt edges in the connecting area. 
   
   
       20 . The sheet metal component according to  claim 8 , characterized in that the welded seam for connecting the inner pipe to the outer pipe and the welded seam for connecting the outer pipe to the at least two shells are designed as a two-plate lap seam or as a three-plate lap seam.