Abstract: The invention relates to a method for producing a cutting tool comprising the following steps: a) providing a starting material for use in an additive manufacturing method in a plurality of material layers; and b) bonding each material layer of the starting material in the form of an indexable insert, wherein the material layers are arranged such that a recess is formed in the cutting tool for securing the cutting tool with a fastener to a tool base body in order to secure the cutting tool with a tool reference level that is parallel to a support plane of a tool base body.

Abstract: The invention relates to a method for producing an indexable insert comprising the following steps: a) providing a starting material for use in an additive manufacturing method in several layers of material; and b) bonding each layer of the starting material in the form of an indexable insert.

Abstract: A hydraulic expanding chuck having a main body which extends along a rotational axis and has a clamping part for receiving and clamping a shank tool and a shank part having a hollow shank for directly or indirectly coupling the hydraulic expanding chuck to a module of a modular tool system or to a machine spindle. The clamping part has a central receiving opening and, around the receiving opening, at least one pressure chamber to which fluid pressure can be applied and which is separated from the receiving opening via an elastically yielding expansion wall and is connected via a pressure duct to a pressure-generating device situated in the main body. The pressure-generating device is arranged axially in the region between the receiving opening and the hollow shank in a central cut-out, which is coaxial with the receiving opening and which opens into the hollow shank.

Abstract: The invention relates to a hydraulic expansion chuck comprising a main body (1) that extends along a rotational or longitudinal central axis (2) and is composed of a shaft part (20), for directly or indirectly coupling the hydraulic expansion chuck to a module of a modular tool system or to a machine spindle, and a clamping part (30), joined to the shaft part in a rotationally and axially fixed manner for receiving and clamping a shank tool. The shaft part comprises a receiving socket which extends towards the clamping part and has a central socket-opening in which a connection pin (31) of the clamping part, which pin extends towards the shaft part, is form-fittingly received. According to the invention, the clamping part comprises a stop which is radially offset from the connection pin and axially strikes the receiving socket.

Abstract: The invention relates to an extrusion nozzle (1) for processing 3D printing material, having a nozzle base (2) with a seat (22) for fastening in a 3D printing device and an outlet portion (21), said outlet portion (21) comprising a nozzle insert (3), and the nozzle base (2) consisting of a solid carbide, metal or brass and the nozzle insert (3) including a PCD (polycrystalline diamond) material.

Abstract: A rotatable tool, comprising a tool support body which has an axis and which forms at least one plate seat either directly or in a cartridge in order to receive a cutting plate. By means of a head screw, which passes through the cutting plate, the base of the cutting plate can be pressed against a base support surface, and two plate edges, which form an angle with each other, can be pressed against a respective corresponding edge support surface of the plate seat. Production dimensions are maintained with a low degree of tolerance and the tool is protected from excessive wear to a sufficient degree. Both edge support surfaces are made of support bodies which are movably guided in the tool support body and which can be driven by a corresponding adjustment device in order to finely adjust the cutting plate in a radial and axial direction, respectively.

Abstract: A cutting tool having a shank and a cutting head, wherein the shank carries a depth stop, which limits penetration depth into a workpiece, via at least one pivot bearing, and the depth stop is spring-preloaded away from the cutting head, via the at least one pivot bearing, against a shank-side stop.

Abstract: A stop for a rotating drilling, milling or countersinking tool comprising a stop sleeve coupled to a radial rolling bearing in such a way that it freely rotates about the tool, an outer bearing bush of the radial rolling bearing being attached to the stop sleeve and an inner bearing bush of the radial rolling bearing being attached to a shaft sleeve that can be attached to a tool shaft of the tool. An axial rolling bearing is also provided, a housing washer of the axial rolling bearing being supported on the stop sleeve and a shaft washer of the axial rolling bearing being supported on the shaft sleeve. In a secondary aspect, the invention relates to a drilling, milling or countersinking tool provided with such a stop.

Abstract: The invention relates to a machine tool (1) comprising a clamping holder (10) which extends along a longitudinal axis (3) and a cutting element (20) that can be inserted into an open tool-side recess (40), which passes through the clamping holder (10), transversely to the longitudinal axis (3). The machine tool (1) has a stop (30) which is secured in the recess (40) and against which the cutting element (20) rests in the direction transverse to the longitudinal axis (3).

Abstract: The invention relates to a conical countersink (10) having at least one main cutting edge (16-1, 16-2, 16-3) extending in an arc-shaped, in particular spiral-shaped manner.

Abstract: The present invention relates to a method for producing a fiber-plastics-composite tool component (1) having a matrix system (6) that has embedded fibers, PBO fibers (4) being selected as the fiber component and a thermosetting plastics matrix (8) being used as the matrix component of the matrix system (6) (S1), which thermosetting plastics matrix has such adhesion to the PBO fibers (4) in the hardened fiber-plastics composite (2) that the coefficient of thermal expansion of the PBO fibers (4) is imparted to the matrix system (6). The invention also relates to a load-bearing tool component (1) of a chip-removing tool in the design of a fiber-plastics-composite press-molded part, the load-bearing tool component (1) comprising a matrix system (6) that has a thermosetting matrix component (8) and comprising PBO fibers (4) embedded into said thermosetting matrix component.

Abstract: The invention relates to a four-edged drill having two long main cutting edges, arranged in a point-symmetric manner with regard to the axis of rotation, which each extend from an outer circumferential cutting corner to a chisel edge in the middle of the drill tip, and two short main cutting edges, arranged in a point-symmetric manner with regard to the axis of rotation, which each extend from an outer circumferential cutting corner in the direction of the middle of the drill tip. According to the invention, each long main cutting edge has an outer partial cutting edge, extending from the cutting corner as far as a shoulder, and an inner partial cutting edge, extending from the shoulder as far as the chisel edge, said inner partial cutting edge having a greater cutting height (?x) than the outer partial cutting edge and the short main cutting edges.

Abstract: A method for coating temperature-sensitive substrates with polycrystalline diamond by a hot-wire CVD method, in which hydrogen and at least one carbon carrier gas are fed into a coating chamber. The fed gases are split at an electrically heated wire in such a way that carbon is formed and deposits on the temperature-sensitive substrate in the form of the diamond modification thereof. The substrate is arranged in the coating chamber, which is at a reduced pressure, and electrical power to electrically heat the wire is adjustable. The method is performed cyclically in respect of the electrical power that is fed to electrically heat the wire. A basic power is fed as lower threshold value for a predetermined time (basic load phase) and is increased for a further predetermined time to a maximum power as an upper threshold value (pulse phase) and is then reduced again to the basic power.

Abstract: A hydraulic expanding chuck for receiving and clamping a tool with a shank. The hydraulic expanding chuck has a main body, which on an axial side has a clamping section that extends along a longitudinal central axis of the expanding chuck and has a clamping part lying in a neck region and in which are formed a central receiving opening for receiving a tool shank and a chamber system to which a fluid pressure can be applied. The chamber system comprises at least one pressure chamber, which is separated from the receiving opening in the radial direction by an expansion wall yielding elastically under the fluid pressure, and which can be supplied with fluid pressure by means of at least one axial pressure channel running from a piston clamping mechanism accommodated in a clamping region of the hydraulic expanding chuck.

Abstract: The invention relates to a cutting tool having a main body (4) extending along a longitudinal central axis (9) and a cutting insert (1), which is held on the main body (4) in an axially and/or radially positionally-adjustable manner and can be tensioned by means of a clamping claw (3). According to the invention, the cutting insert (1) is held by a clamping holder (2), which is held in a positionally-adjustable manner on the main body (4), and which can be tensioned on the main body (4) by means of the clamping claw (3) pressing against the cutting insert (1).

Abstract: A rotary tool, comprising: a tool main body comprising a clamping section and a tool head; an exchangeable first cutting insert having at least one first cutting region having a first cutting edge, wherein the first cutting insert can be inserted into an insert groove of the tool main body from the front side of the tool head and can be fastened therein in a rotationally fixed manner; and an exchangeable second cutting insert fastened to the tool head and offset toward the clamping section in the axial direction of the rotary tool relative to the first cutting insert and which has an insert main body and at least one second cutting region having at least one second cutting edge. A fastening means for the second cutting insert is arranged in the insert groove of the first cutting insert. Also, a cutting insert set and a tool main-body set.

Abstract: A circular milling tool for producing a microgroove structure in a cylindrical surface of a bore, the microgroove structure having a groove profile defined by plural microgrooves axially spaced apart and peripherally extend in a circular manner, comprising: a tool base body drivable around an axis of rotation, which carries a circumferential cutter set with first and second circumferential cutters, which are arranged in a row in the circumferential direction, the first circumferential cutter and second circumferential cutter each have a cutting profile that differs from the groove profile of the microgroove structure to be produced, and the circumferentially projected cutting profiles of the circumferential cutters of the circumferential cutter set overlap each other in an axial direction to an extent that they jointly image the defined groove profile of the microgroove structure to be generated. Also, a method for producing a microgroove structure in a bore.

Abstract: The invention relates to a tool holder (2) for connecting a machining tool (4) having a depth-control stop (3) to a working spindle of a machine tool, having a spindle-side shaft part (6) and a receiving part (7) which supports the machining tool (4) and is connected in a rotationally fixed manner to the shaft part (6). The receiving part (7) is axially displaceable in the tool feed direction via a compression spring arrangement (21), that is supported on the shaft part (6), counter to a fixed stop (17a) on the shaft part (6) and can be displaced away from the fixed stop (17a) on the shaft part (6) during the impact of the depth stop (3) on a workpiece against the spring force of the compression spring device (21).

Abstract: A cutting tool having a shank and a cutting head, wherein the shank carries a depth stop, which limits penetration depth into a workpiece, via at least one pivot bearing, and the depth stop is spring-preloaded away from the cutting head, via the at least one pivot bearing, against a shank-side stop.

Abstract: The invention relates to a suction device for suctioning off wood chips and/or dust generated during the cutting machining of a workpiece, in particular for a chuck (10) for receiving a rotationally driven cutting tool (12), particularly a cutting tool for machining CFK materials or other short-chipping materials, comprising a hub portion (14) that can be rotationally driven, which supports a plurality of radial blades (16) that are evenly distributed in a circumferential direction. In each case, a blade entering edge (20) of the blade (16) extends axially away from the hub portion (14) and radially outwards to a ring portion (18) that stabilizes the blades (16) and is concentric with respect to the hub portion (14). The invention further relates to a production method for producing the suction device.