Patent ID: 6613446
Filing Date: 2003-09-02
Classification: B01J,B21D,F01N,Y10T

Abstract:
A method for producing a conical honeycomb body, which comprises the steps offorming a conical foil assembly having passages formed therein through which a fluid can flow, the conical foil assembly formed from arcuate sheet-metal foils being at least, one of stacked and wound to form the conical foil assembly, at least some of the arcuate sheet-metal foils being structured sheet-metal foils; introducing the conical foil assembly into a conical casing tube having a first end opening formed therein and a second end opening formed therein, the first end opening having a given diameter being larger than a given diameter of the. second end opening; fixing the conical foil assembly in the conical casing tube using a mechanical clamping aid, the mechanical clamping-aid extending annularly about an inner periphery of the conical casing tube at a distance from the first end opening and the second end opening; and subsequently connecting the arcuate sheet-metal foils at least partially to one another and to the conical casing tube by a joining technique.