Process for manufacturing finely structured bodies such as heat exchangers

US5249359A · kind A · utility

Assignees

• Kernforschungszentrum Karlsruhe GmbH · DE
• Messerschmidt-Bolkow-Blohm · DE

Inventors

• Klaus Schubert · Karlsruhe, DE
• Wilhelm Bier · Blankenloch, DE
• Gerd Linder · Karlsruhe, DE
• Peter Schmid · Munich, DE
• Peter Bichler · Herrsching am Ammersee, DE
• Winfried Brunner · Unterhaching, DE
• Wolfgang Simon · Wuppertal, DE

Key dates

• Filing date: Mar 19, 1992
• Grant date: Oct 5, 1993
• Expiry date: Mar 19, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of producing a finely structured body which includes a plurality of stacked, cut sections of foil at least one of which is provided with grooves in a selected groove direction on at least one surface thereof, and which has a plurality of closely juxtaposed, channel-like perforations with high shape accuracy, true dimensions and high surface quality. The method includes: a. providing a vacuum clamping means comprised of a ground, sintered metal plate which is connected to a vacuum source and which is positioned on a work table which is movable in two mutually perpendicular directions X and Y; b. positioning a machinable foil on the ground, sintered metal plate and clamping the machinable foil thereto by applying an effective amount of vacuum; c. cutting a plurality of parallel grooves into the surface of the machinable foil by means of at least one shaping diamond positioned on a cutting spindle and adjustable in a direction Z, each groove of the plurality of grooves having a groove length, a groove width, and a cross-sectional shape that is constant over the groove length and freely selectable; d. cutting the grooved machinable foil into cut sections having selected length…