Process for Manufacturing Fine-structured Bodies

Mr. Bichler, Dr. Bier, Mr. Brunner, Dr. Linder, Mr. Schmid, Dr. Schuebert, Mr. Simon

Abstract

A process for manufacturing fine-structured bodies with several closely spaced channel-like perforations of highly uniform shape, dimensions and surface quality. Several grooves of constant cross-section and given cross-sectional contour over their entire length are cut in the surface of incisable, preferably metallic sheets, and grooved or grooved and ungrooved sheets are superimposed and joined together. The process permits the manufacture of fine-structured bodies of this type using simple means to produce a plurality of closely spaced channel-like perforations of constant cross-section and given cross-sectional contour over their entire length in these bodies. The perforations may be of any cross-sectional shape and arrangement, within very wide limits, the dimensional precision of the cross-sections is of the order of a thousandth of a millimetre, and the smallest wall thicknesses between adjacent perforations are of the order of a hundredth of a millimetre for perforations of length greater than 1000 µm. The grooves are cut by diamond tools, so that the dimensional precision of their cross-section is approximately ±1 µm for smallest wall thicknesses of approximately 15 µm and groove lengths of over 1000 µm.