Honeycomb body for exhaust-gas aftertreatment, method for producing a honeycomb body and motor vehicle having a honeycomb body

A method for producing a honeycomb body for exhaust-gas aftertreatment, the method comprising the following steps:

• a) providing a band-shaped, structured metallic layer having an edge and a structure with elevations and depressions formed obliquely relative to said edge;
• b) laying a metallic connecting strip, having a width of 5 to 20 mm and being separate from the structured metallic layer, on a subsection of a first surface of the structured metallic layer;
• c) forming a welded connection between the metallic connecting strip and the structured metallic layer;
• d) winding up the welded metallic connecting strip and the structured metallic layer;
• e) laying a subsection of a second surface of the structured metallic layer on the metallic connecting strip;
• f) forming a welded connection between the metallic connecting strip and the structured metallic layer;
• g) repeating steps b) to f) until a honeycomb structure having a multiplicity of channel openings is formed;
• h) inserting the honeycomb structure into a housing;
• and
• i) connecting the honeycomb structure to the housing.

A honeycomb body for exhaust-gas aftertreatment, the honeycomb body comprising:

• a length, a first end side, a second end side and a central axis extending through said first and second end sides;
• at least one at least partially structured metallic layer disposed around said central axis, said at least one at least partially structured metallic layer having a structure with elevations and depressions extending at least over a part of said length and running obliquely relative to said central axis, and said at least one at least partially structured metallic layer having adjacent regions;
• at least one metallic connecting strip being separate from said at least one at least partially structured metallic layer, being disposed between said adjacent regions, having a width equal to at most one fifth of said length of the honeycomb body and being shorter than said length;
• and
• a brazed connection or welded connection formed between said at least one metallic connecting strip and said adjacent regions.

A method for producing a honeycomb body for exhaust-gas aftertreatment, the method comprising the following steps:

• a) providing a band-shaped, structured metallic layer having an edge and a structure with elevations and depressions formed obliquely relative to said edge;
• b) laying a metallic connecting strip having a width equal to at most one fifth of a length of the honeycomb body and being separate from the structured metallic layer, on a subsection of a first surface of the structured metallic layer;
• c) forming a welded connection between the metallic connecting strip and the structured metallic layer;
• d) winding up the welded metallic connecting strip and the structured metallic layer;
• e) laying a subsection of a second surface of the structured metallic layer on the metallic connecting strip;
• f) forming a welded connection between the metallic connecting strip and the structured metallic layer;
• g) repeating steps b) to f) until a honeycomb structure having a multiplicity of channel openings is formed;
• h) inserting the honeycomb structure into a housing;
• and
• i) connecting the honeycomb structure to the housing.