Process for manufacturing fine-structured bodies

US5152060A · 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: May 31, 1991
• Grant date: Oct 6, 1992
• Expiry date: May 31, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T82/266
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of producing a finely structured body comprised of a plurality of stacked, cut sections of foil at least one of which is provided with grooves. A machinable foil is wrapped around a cylindrical mandrel of a lathe to overlap opposing edges. The overlapped edges are clamped into an axial recess of the cylindrical mandrel by means of a clamping means and a plurality of grooves cut into the surface of the foil by means of at least one shaping diamond positioned in a feed which is finely adjustable. The plurality of grooves each have a groove length, a groove width, and a cross-sectional shape that is constant over the groove length and is freely selectable. Then, the grooved machinable foil is cut into cut sectoins and the cut sections are stacked. The plurality of grooves have a form precision such that, for groove lengths of more than 1000 .mu.m, the groove width has an accuracy of about .+-.1 .mu.m for land widths which equal or exceed about 15 .mu.m. Alternately, the machinable foil may be stretched over a vacuum clamping means comprised of a ground, sintered metal plate positioned on a work table which is movable in two mutually perpendicular directions X and Y and a plur…