Process for the production of a honeycomb body of twisted sheet

Details Process for the production of a honeycomb body of twisted sheet Process for the production of a honeycomb body of twisted sheet

1998-05-20

2000-11-14

Bryant, David P.

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

29505, 422180, 50252719, 50252722, B21D 5116

Patent

active

061451959

ABSTRACT:
A honeycomb body has a plurality of at least partially structured sheet metal layers forming a plurality of passages through which a fluid can pass. The sheet metal is plastically deformed in a region of a mandrel passage whose cross-section is substantially determined by a mandrel of a winding device with which the honeycomb is formed. The free flow cross-section of the mandrel passage is closed at least in a portion of the passage along the flow direction by deforming the sheet metal with a deformation punch. The deformation punch has an end portion with a sharp-edged rim.

REFERENCES:
patent: 4300956 (1981-11-01), Rosenberger et al.
patent: 4923109 (1990-05-01), Cyron
patent: 4969265 (1990-11-01), Ehara
patent: 5055274 (1991-10-01), Abbott
patent: 5133944 (1992-07-01), Knetsch et al.
patent: 5329698 (1994-07-01), Abbott
patent: 5608968 (1997-03-01), Maus et al.
patent: 5785931 (1998-07-01), Maus et al.
Japanese Patent Abstract No. 01304050 (Kazuichi), dated Dec. 7, 1989.

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