Abstract: Method and strip steel knife from a steel strip having a bainite and decarburized surface. The steel strip has a generally rectangular cross-section, and the method includes machining a plurality of beveled surfaces in a region of a longitudinal edge of the steel strip to create at least a cutting surface defining a longitudinal cutting edge; first hardening at least a part of the cutting surface to form a first cutting edge region of the longitudinal cutting edge; smoothing the cutting surface of at least the first cutting edge region toward the longitudinal cutting edge; and at least one further hardening in the first cutting edge region to form a distal cutting edge region of the longitudinal cutting edge within the first cutting edge region having an increased material hardness with respect to the first cutting edge region located outside the distal cutting edge region.

Abstract: Cutting tool for flat materials. The cutting tools includes a band-shaped base body which has on one longitudinal side a working region with cutting teeth and on an other longitudinal side a supporting region with a supporting surface. The cutting teeth are formed with tips and include cutting sides emanating from the tips at an angle a to one another. In a longitudinal direction of the working region, the tips of adjacent cutting teeth have different distances to the supporting surface.

Abstract: A method for producing a preliminary material for a cutting tool and such a preliminary member, for example a preliminary material for a saw blade, a saw band, a cutting line, a punching knife, or a blade, wherein at least one first particulate cutting-edge material is applied to a planar carrier, the first particulate cutting-edge material is welded to the planar carrier, and the planar carrier is separated substantially along the weld joint thus produced.

Abstract: The invention relates to a tool for producing folding lines in flat materials which is composed of a metallic band-shaped base body with a working section and a supporting section with a supporting edge. To create a tool which forms grooved regions and scored regions between the grooved regions, in which scored regions the tool possibly only penetrates the flat material at isolated points, it is provided according to the invention that the working section is composed of grooving regions with a profile that is rounded in cross-section and of scoring regions with flank surfaces forming in cross-section from blades that start from a tip and extend to a base and are sharp-edged on both sides, wherein the outermost rounded profile surface of the grooving regions and the tips of the scoring regions have the same distance from the opposing supporting edge of the tool.