Abstract: A tool holder (12) for an indexable cutting insert (13) is disclosed, comprising a tool holder base body (15), having a receiving pocket (20) for receiving an indexable cutting insert (13) and a fastening pin (17). The fastening pin (17) can assume a mounting position and a clamping position. In the mounting position, the fastening pin (17) can be positioned in a fastening opening (14) of an indexable cutting insert (13). In the clamping position, an indexable cutting insert (13) can be fixed in the receiving pocket (20) by means of the fastening pin (17). The fastening pin (17) is arranged on a fastening slide (16), displaceably arranged in the tool holder base body (15). Furthermore, a cutting tool (10) is disclosed, having a tool holder (12) and an indexable cutting insert (13).

Abstract: A cutting insert has a cutting edge formed at an intersection of a rake surface and a relief surface, with a chip-control arrangement located at the rake surface. The chip-control arrangement includes a depression that includes a depression declining surface that extends downwardly in a direction away from the major cutting edge. A chip deflecting surface located rearward of the depression is inclined upwardly in a direction away from the major cutting edge. A chip former includes an interposed projection that extends from the chip deflecting surface to the depression declining surface, and two lateral protuberances that extend from opposite sides of the interposed projection to the depression declining surface beyond a forwardmost portion of the interposed projection.

Abstract: A pipe end machining device configured to machine an end of a pipe includes an outer housing having a spindle rotatably mounted therein, tool carriers are mounted on the spindle, a hub assembly attached to the outer housing, a vertical adjustment assembly attached to the hub assembly and to the outer housing, and a drive assembly configured to rotate the spindle and tool carriers. The vertical adjustment assembly adjusts the upward and downward position of the cutting tools relative to the pipe. The hub assembly mounts the device to the pipe and fixes the relative upward or downward position of the cutting tools relative to the pipe, thereby preventing vibration and chatter when the device is cutting a planar surface on the end of the pipe.

Abstract: An actuating device (10) actuates jaws (12) of a steady rest (11). The jaws can be used for clamping or supporting a workpiece (13). The actuating device includes a carrier (18) with a mounting side (20) to which the steady rest (11) can be mounted. An outer end (27b) of an actuating part (27) projects away from the mounting side (20) of the carrier (18) and includes a connecting arrangement (29) as the interface for the connection with an input part (14) of the steady rest (11). An inner end (27 c) of the actuating part (27) is movably coupled with a piston (35) of a pneumatic cylinder (36) via a coupling arrangement (34). The coupling arrangement 34 includes a slide (40) that is immovably connected to the piston (35), said slide having on it at least one slotted gate (44). The slotted gate (44) defines a gate path oriented obliquely to longitudinal direction L and to height direction H, along which gate path the at least one gate element (46) can be guided in a movable manner.

Abstract: A cutting insert includes an insert body having a central longitudinal axis. The insert body has a first radial side and a second radial side. A first axial side includes a first relief face, a second relief face, and a first recess having a first bottom surface. The first relief face, the second relief face, and the first bottom surface are arranged such that each point of same is visible from either a first side view towards the first radial side or from a second side view towards the second radial side. The insert body is longer along the longitudinal direction at a central portion towards the central longitudinal axis than at an outer portion towards one of the first or second radial sides. Further a milling tool is disclosed.

Abstract: The present invention relates to a cutting bite and a cutting apparatus including the same. According to one embodiment of the present invention, a cutting bite is provided to sequentially pass through an upper end portion, a central portion, and a lower end portion of stacked films in a thickness direction of the stacked films when a rotating wheel rotates, and is provided such that cutting is performed in a manner in which a cutting direction of a cutting tip is a direction from an outside toward an inside of the stacked films while the cutting bite passes through the upper end portion toward the lower end portion.

Abstract: A cutting insert and a cutting tool having same. The cutting insert includes: an upper surface; a lower surface having a flat surface; a fastening hole penetrating the upper surface and the lower surface; side surfaces each connecting to the upper surface and the lower surface; and cutting edges formed by the upper surface and the side surfaces. A first cutting edge is inclined downward. A major side surface comprises a first major side surface connected to the upper surface so as to constitute the first cutting edge, and a second major side surface connected to the first major side surface and the lower surface. A minor side surface comprises a first minor side surface connected to the upper surface so as to constitute a second cutting edge, and a third minor side surface connected to the upper surface and the lower surface.

Abstract: A replaceable face-milling head configured for rotating about a central rotation axis AR. The head includes a cutting portion and an integrally formed threaded shank-connector portion, the latter of which being configured for connecting to a shank. A length-diameter ratio LDR, defined as a cutting portion length LC divided by a cutting portion diameter DE, fulfills the condition: LDR?1.00.

Abstract: Disclosed are a wheel lightweight machining fixture and method. The fixture comprises a rotating chuck, an electric cylinder, a guide rail, a slide block, a first linear motor, radial positioning blocks and the like. When the electric cylinder drives the slide block to move along the guide rail, the position where an first ultrasonic thickness measuring sensor is in contact with a wheel spoke can be adjusted, so that the spoke thicknesses at different positions can be detected. Through motion of the turrets, an second ultrasonic thickness measuring sensor can contact the outer rim of the wheel and detect the rim wall thickness. By integrating a measurement feedback system into the manufacturing process, the disclosure provides a fixture and a method for minimum entity machining of the rim wall thickness and the spoke thickness of a wheel during the first stage turning process, thereby realizing lightweight manufacturing of the wheel.

Abstract: A cutting insert has a first (top) end surface, a second (bottom) end surface, a peripheral side surface connecting the top and bottom end surfaces, and a mounting hole having a central axis O which penetrates the top and bottom end surfaces. Cutting edges are formed on an intersecting edge between the first end surface and the peripheral side surface. The second end surface has an inclined part. When a virtual plane substantially perpendicular to the axis O and passing through any point of the cutting edges is defined, the inclined part is inclined so as to be more distant from the virtual plane, heading from the peripheral side surface to the axis O. A projected part projected in a direction along the axis O is formed in an area around the mounting hole in the inclined part. This reinforces the strength of the mounting hole.

Abstract: A cutting insert has an upper surface (21), a lower surface (91) and a side surface (61) that connects the two surfaces. A cutting edge is formed at an intersecting edge between the upper surface (21) and the side surface (61). The cutting edge includes at least a major cutting edge (33), a corner edge (34) connected to the major cutting edge (33), and a curved wiper edge (35) located on the opposite side of the major cutting edge (33) across the corner edge (34). A first angle ? made by the major cutting edge (33) and the chord of the wiper edge (35) is 155°??<180°, and a positive land is formed in the wiper edge (35). The cutting edge may further include an inner cutting edge (36) located on an opposite side of the corner edge (34) across the wiper edge (35).

Abstract: The invention relates to a cutting insert (1) for installation in carrier tools for machining workpieces, comprising a top side (2), a bottom side (3), and side surfaces (4) connecting the top side (2) and the bottom side (3), wherein a peripheral protective chamfer (5) having an upper edge (6) adjoining the top side (2) of the cutting insert (1) and having a lower edge (7) adjoining the side surfaces (4) is arranged at the transition from the top side (2) to the side surfaces (4), wherein the upper edge (6) forms cutting edges (9) and cutting corners (10) and, in the region of the cutting edges (9), the lower edge (7) transitions into a cutting-edge clearance angle surface (8) having an edge clearance angle of 3° to 11°. For improved edge stability in drawn cuts, it is proposed that, in the region of the cutting corners (10), the lower edge (7) of the protective chamfer (5) transitions into a corner clearance angle surface (11) having an edge clearance angle of 3° to 5°.

Abstract: An object is to provide a tool holder that can efficiently supply a coolant to a flank and a cutting edge by preventing the leakage of a coolant and can accurately and stably supply a coolant so as to correspond to the shapes of various cutting edges or the types of cutting. A face, a flank, and a cutting edge forming an intersection ridge between the face and the flank are disposed at a leading end portion of a shaft-shaped tool body in a tool holder. A coolant supply passage is formed in the tool body, and a coolant ejection member is detachably provided at the leading end portion of the tool body. The coolant ejection member includes a tubular portion, and an ejection hole that communicates with the coolant supply passage through the inside of the tubular portion and opens toward the flank and the cutting edge.

Abstract: Square end mill includes long end cutting edge disposed from end portion on outer peripheral side in radial direction to center in the radial direction when a cutting edge portion is viewed from end face side, and short end cutting edges disposed from other end portions on outer peripheral side in radial direction to middles on center side in radial direction, first gashes disposed on regions from lines connecting end portions on center side in radial direction of the short end cutting edges to center in radial direction to the long end cutting edge on rear side in the rotation direction, second and third gashes disposed on rear and front sides in rotation direction of the first gashes, and all gashes formed in curved surface shapes depressed to a shank side on opposite side in axial direction of the cutting edge portion.

Abstract: An indexable milling or drilling insert having a 180-degree rotational symmetry about each of the first, second and third axes (X, Y, Z) of a three-dimensional euclidean space. The insert has opposite first and second main surfaces and a peripheral surface extending therebetween. Each main surface has a main abutment surface and at least two rake surfaces. The insert has a through clamping bore which extends along the third axis and opens out to the main surfaces. The peripheral surface has two opposite front surfaces connected to two opposite side surfaces. Each front surface has a pair of outward abutment surfaces and each side surface has a pair of at least partially planar inward abutment surfaces. Each pair of outward abutment surfaces converge outwardly away from the third axis and each pair of inward abutment surfaces converge inwardly towards the third axis.

Abstract: A clamp for a tool holder is disclosed. The clamping tool holder includes a body having an insert-receiving pocket and a threaded clamp-receiving bore with a coolant opening for receiving pressurized coolant from a coolant source. A clamp includes a threaded aperture extending from a top surface to a bottom surface and coolant passages in fluid communication with a coolant header. A clamp screw is threaded into the threaded aperture of the clamp. The clamp screw includes a plurality of coolant passages in fluid communication with the coolant opening of the body, and at least one coolant channel in fluid communication with the coolant passage. Coolant from the coolant source enters the coolant opening of the body, travels into the clamp screw, travels into each coolant passage of the clamp, and then exits the clamp in a direction toward a cutting insert-workpiece interface.

Abstract: In an embodiment, a machine tool includes two fixed modules and two movable modules each of which having a main spindle, a headstock, and a tool post being integrally formed, and a bed on which these are installed. The movable modules are provided on the bed to be movable in the Y-axis direction, the fixed modules are fixed on the bed on the opposite sides of the these movable modules, and a recess is provided next to the fixed module, the recess being formed by cutting out the bed. The movable modules are movable such that the axis lines of the main spindles of the movable modules are aligned with the axis line of the main spindle of the fixed module or the fixed module. The movable module is movable to the opposite position of the recess.

Abstract: A tool for machining has a main body, a seat formed on the main body, a fastening screw, and a cutting insert. The seat has a base surface for supporting an underside of the cutting insert and a lateral bearing surface. A bore for receiving the fastening screw is formed in the base surface, the bore has a threaded bore portion and, closer toward the base surface, a thread-free bore portion. The cutting insert is fastened to the seat such that the head portion of the fastening screw is supported on the through-hole in the cutting insert. The threaded portion of the fastening screw engages with the threaded bore and the fastening screw is elastically deflected such that a thread-free shank portion bears against the thread-free bore portion on a side remote from the lateral bearing surface and is spaced apart from the thread-free bore portion.

Abstract: There is provided a throw-away tip which includes a blade containing diamond and is excellent in chip processability. The throw-away tip comprises a body and a blade provided to the body and having a cutting edge, the blade containing 80% by volume or more of diamond, the blade having a land surface extending along the cutting edge, and a chip breaker having a recess located opposite to the cutting edge with the land surface therebetween, the recess having a side surface having an inclined surface that recedes continuously as a distance thereof from the land surface increases in magnitude and that has a shape identical to that of a portion of a side surface of a shape of a body of revolution.

Abstract: A milling tool with a disk- or strip-shaped base body, which can be driven around an axis of rotation, and several cutting inserts arranged along the outer circumference of the base body on opposite sides from one another, wherein the cutting inserts, viewed in the axial direction, overlap one another. The invention also relates to a tangential cutting insert for a milling tool of the above-mentioned type, with two side surfaces, through which a fastening opening extends, and two face ends, wherein cutting edges are formed at the junction of the front faces to the side surfaces, wherein the fastening opening is positioned eccentrically.