Abstract: A tap for cutting thread production can include a working region that is rotatable about a tool axis, and has a plurality of cutting teeth arranged on the tool circumference, wherein each cutting tooth has a cutting tooth head at a region that is radially farthest from the tool axis. The radial distance of the cutting tooth heads from the tool axis is substantially the same or decreases counter to an intended feed direction of the tool in a guide region of the working region, but increases counter to the intended feed direction of the tool in a starting region of the working region. Thus, in an axial cross section, the superimposed profiles of axially spaced-apart cutting teeth have a profile differential area. The radial cutting tooth profile boundary of the cutting teeth can be at least sectionally curved in the starting region.

Abstract: The thread generating tool for producing a thread in a workpiece has the following features: a) the tool is rotatable about a tool axis (A), b) the tool has a number n?1 of groove generating regions for generating in each case one groove in the workpiece and a number m?1 of thread generating regions for generating the thread in the workpiece, c) each of the m thread generating regions is arranged behind one of the n groove generating regions as viewed in an axial projection parallel to the tool axis (A), and has a smaller extent than said groove generating region as viewed in cross section in the axial projection.

Abstract: The invention relates to a tool for machining a workpiece, which tool is rotatable about a tool axis, having a tool shank and a tool head, which tool head comprises at least one land, at least one spiral point assigned to the land and at least one flute assigned to the land, wherein the flute has a left-hand helix and the spiral point is skewed to the left, or wherein the flute has a right-hand helix and the spiral point is skewed to the right.

Abstract: The invention relates to a modular drill including a shank part with an end side. A cutting part can be connected to the shank part at its end side. The shank part has at least one torque transmission element which projects on the end side and has at least one torque transmission face for transmitting a torque in the rotational direction from the shank part to the cutting part. The cutting part has at least one torque receiving region for receiving the torque. The at least one torque receiving region has at least one torque receiving face which corresponds with the torque transmission face. The cutting part has at least one centering element for radially centering the cutting part in relation to the shank part. The cutting part is clamped to the shank part via a clamping element which acts at least predominantly in the axial direction.

Abstract: The tool for the chipless production of a thread, in particular for producing an internal thread, is in its forming height, pitch of the pressing lands and/or pressing surfaces adapted to the material of the workpiece in a special manner.

Abstract: A rotatable drilling tool has cutting edges (on a face side) that merge inwardly into a chisel edge, with the chisel edge(s) running on the face side about a central region surrounding the tool axis, with the chisel edges forming, in the innermost region (or about a point thinning region), a residual chisel edge, with cutting edge corners being formed at the outer ends of the main cutting edges, with a straight connecting line that runs through two cutting edge corners of main cutting edges situated opposite one another in relation to the tool axis, or if an opposite main cutting edge is not present, through a cutting edge corner and the tool axis, with the chisel edge inner region running from the outer end of the residual chisel edge within a region with an angle of between ?15° and +15° in relation to a parallel to the connecting line.

Abstract: This invention relates to a screw tap which is rotatable about a rotational axis and has a number of thread-cutting teeth, which respectively have a radially outer tip cutter and are disposed mutually offset, with a predefined thread pitch, in an arrangement running spirally or helically around the rotational axis. In a lead region adjoining one end of the screw tap axially to the rotational axis, the maximum radial distance of the tip cutters of the thread-cutting teeth from the rotational axis increases with increasing axial distance of the tip cutters from one end of the screw tap according to a predefined radial distance function. At least some of the thread-cutting teeth in the lead region, at least in the region of the tip cutters, respectively have a defined cutter rounding between tool face and tool flank.

Abstract: A tool for producing a thread such as an internal thread, can include at least one cutting region having at least one cutting edge and at least one thread-forming region. In general, the cutting region(s) and the thread-forming region(s) are coupled or connected to one another in such a way that they are rotatable or rotate together about a tool axis. In addition, at least one cutting region is at least partly formed on a front-face tool end and/or adjacent to a front-face tool end. Furthermore, a front-face recess that is configured for receiving chips is formed on the front-face tool end.

Abstract: A method for gaging a thread can include gaging at least one preliminary thread using a preliminary gage (e.g., a preliminary go gage, and/or a preliminary no go gage). The preliminary thread can be produced in a first step by removing material from the workpiece. The at least one preliminary thread has a preliminary thread profile, and the preliminary thread gage is adapted to the preliminary thread profile. In addition, the method can involve gaging a final thread using a final-thread gage (e.g., a preliminary final-thread go gage and/or a final-thread no-go gage). The final thread can be formed in a second step by plastic pressing-in of the material of the workpiece at least in a section of the preliminary thread profile using at least one thread-forming profile. The final thread has a final thread profile, and the final-thread gage can be adapted to the final thread profile.

Abstract: A method for producing a thread in a workpiece can include producing a preliminary thread by removing material from the workpiece (e.g., with a cutting action), which produces a preliminary thread profile having two preliminary thread flanks and a preliminary thread root connecting the two preliminary thread flanks. The method can also include producing, in at least one second working step, a final thread having a final thread profile, which has two final thread flanks and a final thread root connecting the two final thread flanks. The final thread can be produced by plastic pressing-in of the material of the workpiece at least in a section of the preliminary thread profile by a predetermined volume. In one implementation, at least one of the preliminary thread flanks and at least one of the of the thread-forming profile are include at different inclination angles from each other.

Abstract: The invention relates to a drill thread milling cutter (1) for producing a bore and for the subsequent milling of a thread in the bore, said drill thread milling cutter (1) having a working region (2), on the circumference (3) of which a number of drilling and milling cutting edges are arranged. A number of milling cutting edges (7, 8, 9, 10) greater than the number of drilling cutting edges (17) by a factor greater than 2 are arranged or are effective in the direction of rotation.

Abstract: The tool for producing a screw thread in a workpiece comprises a) at least one thread-producing region, which comprises a1) at least one thread-milling region, which operates by removing material, as well as a2) at least one thread-forming region, which operates without the removal of material, b) such that the thread-milling region(s) and the thread-forming region(s) of each thread-producing region b1) are coupled or connected to one another in such a way that they rotate or can be rotated together about a tool axis, and b2) are disposed along an outside circumference of the thread-producing region so as to be offset from one another, i.e. situated one behind the other or following one another, in a direction of rotation about the tool axis.

Abstract: Implementations of the present invention include a thread-rolling tap, which is designed and intended for the non-cutting finishing of a previously created thread, in particular internal thread. For example, one implementation of such a tool includes at least one thread-forming portion that rotates about a tool axis, the thread-forming portion having multiple forming wedges. The forming wedges in cross-section include two flanks that diverge from one another beginning at a forming wedge tip. The forming wedge tip can be shaped as any of an acute angle, a rounded region, or a flattened region. At least one of the two flanks also include at least one expansion for positioning the forming wedge in the previously created thread. Additional implementations of the invention relate to a methods of manufacturing such a tool, as well as to methods of creating a thread.

Abstract: The invention relates to a tool for machining a workpiece, which tool is rotatable about a tool axis, having a tool shank and a tool head, which tool head comprises at least one land, at least one spiral point assigned to the land and at least one flute assigned to the land, wherein the flute has a left-hand helix and the spiral point is skewed to the left, or wherein the flute has a right-hand helix and the spiral point is skewed to the right.

Abstract: The tool for the chipless production of a thread, in particular for producing an internal thread, is in its forming height, pitch of the pressing lands and/or pressing surfaces adapted to the material of the workpiece in a special manner.

Abstract: In order to produce a thread in a workpiece, a preliminary thread can be produced in the workpiece in at least one first working step by removing material from the workpiece. The preliminary thread profile of the workpiece (from which material was removed) has two preliminary thread flanks and a preliminary thread root connecting the two preliminary thread flanks. In addition, a preliminary thread profile that has a final thread having a final thread profile is produced in at least one second working step by plastic pressing-in of the material of the workpiece at least in a section of at least one of the two preliminary thread flanks by a predetermined or predeterminable pressing-in volume.

Abstract: A method for gaging a thread can include gaging at least one preliminary thread using a preliminary gage (e.g., a preliminary go gage, and/or a preliminary no go gage). The preliminary thread can be produced in a first step by removing material from the workpiece. The at least one preliminary thread has a preliminary thread profile, and the preliminary thread gage is adapted to the preliminary thread profile. In addition, the method can involve gaging a final thread using a final-thread gage (e.g., a preliminary final-thread go gage and/or a final-thread no-go gage). The final thread can be formed in a second step by plastic pressing-in of the material of the workpiece at least in a section of the preliminary thread profile using at least one thread-forming profile. The final thread has a final thread profile, and the final-thread gage can be adapted to the final thread profile.

Abstract: A method for producing a thread in a workpiece can include producing a preliminary thread by removing material from the workpiece (e.g., with a cutting action), which produces a preliminary thread profile having two preliminary thread flanks and a preliminary thread root connecting the two preliminary thread flanks. The method can also include producing, in at least one second working step, a final thread having a final thread profile, which has two final thread flanks and a final thread root connecting the two final thread flanks. The final thread can be produced by plastic pressing-in of the material of the workpiece at least in a section of the preliminary thread profile by a predetermined volume. In one implementation, at least one of the preliminary thread flanks and at least one of the of the thread-forming profile are include at different inclination angles from each other.