Abstract: A cutting insert and a gear milling cutter is disclosed. A first major side portion of an insert body of the cutting insert is provided with a first recess having a first bottom surface (24a) and a second major side portion is provided with a second recess having a second bottom surface. The first and second bottom surfaces extend substantially in parallel with a longitudinal axis of the insert body. A first minor side portion is provided with a third recess having a third bottom surface and a second minor side portion is provided with a fourth recess having a fourth bottom surface, the third and fourth bottom surfaces extending across the longitudinal axis. Thus, the cutting insert may be supported in a relevant gear milling cutter against one of the first and second bottom surfaces and against one of the third or fourth bottom surfaces.

Abstract: An indexable cutting insert has mutually perpendicular longitudinal, lateral and vertical axes. The insert includes two opposite cutting portions and a clamping portion therebetween, arranged parallel to the longitudinal axis. Each cutting portion includes a rake surface and front and side relief flanks, and a cutting edge formed at an intersection of the rake surface and front relief flank. A second width of the clamping portion is greater than the first width of the cutting edges. The clamping portion has two resilient beams and a flexibility aperture opening out to side abutment surfaces of the clamping portion, allowing elastic deformation of the insert along the vertical axis. The cutting insert may further include two opposite stopper portions, each formed on a respective insert end surfaces, each stopper portion forming a step in the respective insert end surface. A cutting tool clamps one or more inserts at their clamping portions.

Abstract: A cutting tool for machining a workpiece. The cutting tool comprises a holder and at least two cutting inserts which are separated from each other by a spacer element. The cutting tool may be used to produce two or more bevels (and/or joints and/or grooves) at precisely defined spacings in only one operation. Through the use of spacer elements of different lengths, it is possible to produce bevels at different spacings. The spacer element preferably has an interface which comprises only radial contact surfaces, which run parallel to a longitudinal axis of the spacer element, and a substantially flat axial contact surface, which runs transverse to the longitudinal axis. The length of the spacer element can therefore be shortened on the rear side of the spacer element without destroying said interface.

Abstract: A test kit for unevenly worn sheave grooves, a tool for regrooving sheave grooves that are found to be unevenly worn, and a method for testing for and maintaining the sheave grooves utilizing the test kit and tool. The test kit includes magnetic standards which adhere to a sheave beneath the portion of the sheave touched by the ropes, facilitating testing without having to unrope the sheave. Unevenly worn sheave grooves are visually ascertained by holding a straightedge adjacent to the magnetic standards. The regrooving tool includes a shank that can be received by a stand set up next to the sheave, a body attached to the shank, and an interchangeable cutting insert received by the body that is inserted in the sheave groove. When the sheave is rotated, the sheave groove is ground by the cutting insert, with each groove being ground sequentially until all grooves are again uniform.

Abstract: A multi-grooving tool holder for holding cutting members seated in a side-by-side formation in a clamping portion of the holder. The clamping portion includes an upper clamp and a lower clamp and an elastic member is located in one of the upper and lower clamps. When cutting members are assembled in the clamping portion, the elastic member engages the cutting members and aligns each cutting member independently, by applying a force, and consequently a moment on the cutting members.

Abstract: A cutting insert includes a first end surface, a second end surface located opposite the first end surface and an axis extending so as to penetrate the first end surface and the second end surface. The insert includes two first cutting edges with a curve shape on a first end surface side and two second cutting edges with a curve shape on a second end surface side. Each of the first cutting edges is formed on an intersecting ridge portion between the first end surface and a corresponding side surface portion so as to curve on a plane orthogonal to the axis. Each of the second cutting edges is formed on an intersecting ridge portion between the second end surface and the corresponding side surface portion so as to curve on a plane orthogonal to the axis.

Abstract: The present invention relates to an exchangeable insert seat member for a metal cutting tool comprising a tool body and a cutting insert, wherein the exchangeable insert seat member is arranged to be placed between the tool body and the cutting insert wherein said exchangeable insert seat member is contacting said tool body and said cutting insert at contact areas arranged such that there is no direct contact between the tool body and the cutting insert and wherein said exchangeable insert seat member is produced by powder injection molding. The present invention also relates to a metal cutting tool comprising such an exchangeable insert seat member.

Abstract: A test kit for unevenly worn sheave grooves, a tool for regrooving sheave grooves that are found to be unevenly worn, and a method for testing for and maintaining the sheave grooves utilizing the test kit and tool. The test kit includes magnetic standards which adhere to a sheave beneath the portion of the sheave touched by the ropes, facilitating testing without having to unrope the sheave. Unevenly worn sheave grooves are visually ascertained by holding a straightedge adjacent to the magnetic standards. The regrooving tool includes a shank that can be received by a stand set up next to the sheave, a body attached to the shank, and an interchangeable cutting insert received by the body that is inserted in the sheave groove. When the sheave is rotated, the sheave groove is ground by the cutting insert, with each groove being ground sequentially until all grooves are again uniform.

Abstract: An indexable cutting insert (1) for a side milling cutter (11) includes two insert surfaces facing away from each other. Both insert surfaces include a relief-like profile (6).

Abstract: A multi-grooving tool holder for holding cutting members seated in a side-by-side formation in a clamping portion of the holder. The clamping portion includes an upper clamp and a lower clamp and an elastic member is located in one of the upper and lower clamps. When cutting members are assembled in the clamping portion, the elastic member engages the cutting members and aligns each cutting member independently, by applying a force, and consequently a moment on the cutting members.

Abstract: An end mill has a plurality of quick change insert holders for cutter inserts on machine tools. Each of the plurality of quick change tool holders comprises a housing having at least one seat portion which is adapted to receive a cutter insert. A clamping arm is movably mounted in the insert housing and has a clamp portion adapted to engage a cutter insert extending over the seat portion. A locking mechanism is contained within the housing. The locking mechanism has a clamp position which forces the clamp portion of the clamping arm to engage a cutter insert and a release position which forces the clamp portion to disengage from a cutter insert. The locking mechanism moves between the release position and the clamp position.

Abstract: An improvement for a cartridge case trimmer which indexes on the shoulder of the case as established by the resizing die and permits a rotating cutter assembly to trim the neck of cases from the inside at a controllable angle. The cutter assembly includes a notched cutter with a cutting edge for length, a cutting edge for inside chamber, and a notched support plate with a guide which also serves as an outside deburring edge. The rotating cutter assembly has a flywheel mounted to it so as to stabilize the cutter while rotating to reduce the tendency to wobble. Set screws fit within the notches of the notched cutter and notched support plate to both hold them in place and to adjust them independently for the desired shape of the trimmed cartridge case neck.

Abstract: Disclosed is a turning tool for cutting circumferential grooves into a surface of a polishing pad formed of a resin material and utilized for polishing semiconductor devices. The turning tool comprising a cutting part arranged to have a tooth width within a range of 0.005–1.0 mm, a wedge angle within a range of 15–35 degrees, and a front clearance angle within a range of 65–45 degrees. A polishing pad effectively formed by using the turning tool, and an apparatus and a method of producing such a polishing pad by utilizing the turning tool are also disclosed.

Abstract: Disclosed is a turning tool for cutting circumferential grooves into a surface of a polishing pad formed of a resin material and utilized for polishing semiconductor devices. The turning tool comprising a cutting part arranged to have a tooth width within a range of 0.005–1.0 mm, a wedge angle within a range of 15–35 degrees, and a front clearance angle within a range of 65–45 degrees. A polishing pad effectively formed by using the turning tool, and an apparatus and a method of producing such a polishing pad by utilizing the turning tool are also disclosed.

Abstract: A rectangular blade-type cutting tool having two edge-on cutting inserts mounted at one end of the blade in a staggered formation with their cutting edges partially overlapping. This type of cutting blade finds particular application in disc-type cutting tool assemblies used for cutting pipes. In such a cutting tool assembly the blade-type cutting tools in accordance with the present invention are equally peripherally distributed on an end face of the cutting tool assembly with the operative cutting edges of each of cutting blade inwardly directed and equally distanced with respect to the axis of rotation of the cutting tool assembly. With such a cutting tool assembly it is only necessary to cut the thickness of a pipe without the necessity of passing across its entire diameter allowing for quick and economical cutting of the pipe.

Abstract: Cutting tool (1) with a cutting insert (3), on the front edge (14) of which there is a first major cutting edge (15) and an approximately U-shaped indentation (18) that interrupts said first major cutting edge (15), whereby each side leg (19, 20) of the indentation (18) forms a minor cutting edge, and the base (21) of the indentation (18) forms a second major cutting edge (22) which is recessed in the feed direction (V) behind the first major cutting edge (15), and whereby the cutting insert (3) is formed by at least two separate sections (4a, 4b), each of which carries a portion of the indentation (18).

Abstract: A rectangular blade-type cutting tool having two edge-on cutting inserts mounted at one end of the blade in a staggered formation with their cutting edges partially overlapping. This type of cutting blade finds particular application in disc-type cutting tool assemblies used for cutting pipes. In such a cutting tool assembly the blade-type cutting tools in accordance with the present invention are equally peripherally distributed on an end face of the cutting tool assembly with the operative cutting edges of each of cutting blade inwardly directed and equally distanced with respect to the axis of rotation of the cutting tool assembly. With such a cutting tool assembly it is only necessary to cut the thickness of a pipe without the necessity of passing across its entire diameter allowing for quick and economical cutting of the pipe.

Abstract: A rectangular blade-type cutting tool having two edge-on cutting inserts mounted at one end of the blade in a staggered formation with their cutting edges partially overlapping. This type of cutting blade finds particular application in disc-type cutting tool assemblies used for cutting pipes. In such a cutting tool assembly the blade-type cutting tools in accordance with the present invention are equally peripherally distributed on an end face of the cutting tool assembly with the operative cutting edges of each of cutting blade inwardly directed and equally distanced with respect to the axis of rotation of the cutting tool assembly. With such a cutting tool assembly it is only necessary to cut the thickness of a pipe without the necessity of passing across its entire diameter allowing for quick and economical cutting of the pipe.

Abstract: A side milling cutter with cutting inserts, by which side milling cutter a crank pin can be cut with a single feed motion. The plate-shaped cutting inserts are arranged on the periphery of the side milling cutter alternating between the left and right side in a peripheral direction, and are oriented essentially radially with their cover surfaces in relation to the cutter axis, which cover surfaces contain the tool faces. The cutting inserts are also arranged so as to form a gap on the periphery of the cutter which is so narrow that the length of the arc of action between the point of entry and the point of exit of cutting is greater than the half of the gap of the arrangement of cutting inserts on the periphery of the cutter. The present invention also relates to the configuration of the cutting inserts as indexable inserts which can be used on the left and on the right.

Abstract: A plunge-cutting forming tip which improves chip disposal. A protrusion (11) is disposed on a rake face (7) in the vicinity of the ridgeline of a plunge-cutting edge (3). In cutting by means of the tip (1), a chip (K) is ejected which is not only merely thin, but also is ejected in such a manner as to be partially squeezed as a result of pressing against the protrusion (11). Accordingly, the chip is ejected such that a cross section thereof is deformed into a channel shape instead of assuming a flat shape. Thus, the rigidity of the chip is increased, so that chip disposal is improved accordingly.

Abstract: A modular cutting tool assembly includes a tool holder (50) having at least one insert receiving pocket (52) and first (10,80) second cutting (100,102) inserts alternately receivable within the pocket (52). The first cutting (10,80) insert has a peripheral flank surface (18) configured to provide abutment features with m×n-fold rotational symmetry about the insert's central axis so that it can be restrained against the lateral support surfaces (56,58,60) in any of mn× angular positions, for at least one value of each of n and m where n≧3 and m≧2. The second cutting (100,102) insert has a peripheral flank surface (110) configured to provide reduced-symmetry abutment features with only n-fold rotational symmetry so that the second cutting insert can be restrained against the lateral support surfaces in only n angular positions.

Abstract: A cutting tool for simultaneously forming a plurality of deep, narrow, closely spaced parallel grooves in a hard, brittle substrate material comprises a rigid housing which defines a plurality of closely spaced cutting blade cavities, each of said cavities being constructed to receive and rigidly hold a cutting blade therein, and cutting blades rigidly mounted in each of said cavities.

Abstract: A gear cutting tool has a series of separate cutter inserts removeably clamped to the front ledge of a holder block. Each cutter insert has a forward cutting edge that extends beyond the ledge and a rear positioning portion that includes a central projection extending rearwardly from side faces. The central projection mates with a respective one of a series of parallel tracks formed in the holder block and the rear faces mate with upright front walls at the rear of the ledge on either side of the track. The arrangement precisely locates the cutter insert in the holder block. The holder block may be formed of a single piece or may be built up of identical interlocking block elements.

Abstract: A method of manufacturing a master for projection screens, according to which a pattern of parallel rectilinear grooves and ribs is formed on one side of a plate of machinable material by a slotting operation performed by means of a profile chisel. The grooves (33) are formed in several different tooling steps, with several grooves being tooled simultaneously. The profile chisel is of multiple construction and is composed of three subchisels, i.e. a precutting chisel, a cutting chisel (13) and a finishing chisel.

Abstract: Mass produced tools particularly useful for forming parts on screw machines and turret lathes. A plurality of identical tool blanks are stacked one upon another in a holder and are located and clamped in positions corresponding to the distance generated by their height and front relief angle thus permitting surfaces of a form to be mass produced upon the blanks while keeping the blanks interchangeable. The blanks are individually finished with required angles, radii, and side relief. These mass produced tools increase the availability and decrease the cost of form tools produced one at a time by previous methods. In addition, since they are identical, these tools are quickly changed in service without resetting or regrinding thus reducing production machine down time.

Abstract: A thread cutting insert comprises a block having along one edge thereof a plurality of teeth for successively cutting a thread in a workpiece. The teeth are of successively increasing heights from a first to a last of the teeth. The first tooth has a smoothly convexly curved cutting edge, and the remaining teeth have a multi-sided cutting edge defined by three sides of a trapezoid.

Abstract: A face milling type gear cutting assembly including contiguous cutting tools positioned in a common slot with means for preserving clearance for chip removal between these tools. The cutting assembly also includes a tool clamping arrangement featuring a novel clamping block which is releasably attached to a screw element in situ.

Abstract: Single or multiple recessing tool with cutting plates loosely mounted in an opening of the holder with the cutting plates, possibly using shortened gage block-like supplemental plates, clamped against the bottom and one side wall of the opening by means of an essentially L-shaped mounting frame overlapping the plates of the plate package from above and one side with a clamping pressure component being produced when clamping the mounting frame against the bottom via a wedge ramp lateral to the side wall and with adjusting ribs being arranged on the bottom of the opening and/or the bottom side of the upper clamping leg of the mounting frame engaging into the fitting grooves of all of the plates.

Abstract: A cutting insert presents clearance and rake faces constructed and dimensionally interrelated to provide a plurality of adjacent offset, substantially parallel, non-coplanar cutting edges. The offset is in the range of from about 0.010 to 0.100 inch and the planes along the clearance face, which include the cutting edges, form part of a series of steps defined by intersecting planes. Each of the angles between these intersecting planes has a value of at least about 90 degrees.

Abstract: A log splitting apparatus having an elongated frame, a selectively actuatable log moving ram mounted at one end of the frame, and a log splitting wedge assembly mounted at the opposite end of the frame. The wedge assembly includes a plurality of wedge tip sections which are removably mountable in vertically stacked relation and having interlocking lugs and recesses between mating upper and lower sides thereof for maintaining the wedge sections in proper alignment. A base plate is mounted on the frame for receiving and retaining the stack of wedge tip sections in proper orientation on the frame, and an upstanding support is mounted on the frame for vertically supporting the wedge tip sections and serving as a reactionary member for forces exerted on the wedge tip sections during log splitting. The wedge tip sections are further positively secured in mounted position by a vertically disposed clamping bolt threaded engaging the base plate.

Abstract: A tool assembly includes a plurality of tool bit inserts, each having a cutting edge formed on at least one end of the insert, the insert being securely clamped to the head portion of a shank which is mountable to a machine tool, with the cutting edges of the inserts projecting outwardly from an edge of the shank in an ascending staggered configuration starting with the first cutting edge to contact the workpiece. As preferably embodied, the shank has a cut-out in its front end, providing a seating surface to support the inserts and a bearing surface segment for each insert to abut the back edge of its corresponding inserts, the segments being formed in an ascending step-like configuration to provide the stagger for the cutting edges of the inserts.

Abstract: A disc-shaped cutter body (1; 101; 201) is provided with a multiplicity of tooth plates (4; 104; 204, 204a), which engage suitable backing and end-supporting surfaces (5, 6, 7; 105, 106, 107, 205, 205a, 206, 206a, 207, 207a) of tooth holders (3; 103; 203) inserted in recesses formed by radial grooves (2; 102; 202) in the cutter body. Each tooth plate is clamped between a tooth holder and a head portion (9; 109; 209a, 209b) of an elongated holding-back member (8; 108; 208), which has a foot portion (10; 110; 210) that is disposed in the recess of the cutter body and bears on said tooth holder.

Abstract: A forming tool generally having a dove-tail shaped machine connector provided with an integral outwardly extending front support which in cooperation with the front surface of the tool is adapted to receive a forming insert. The front support is provided with a slot for receipt of locking wedges as to lock the insert in position with respect to the tool. The front support is positioned below the working edge of the insert and the tool is further provided with means for positioning the insert laterally with respect to the slot.

Abstract: An indexable insert for cutting internal and external grooves in a workpiece is adapted for mounting and securing upon a tool holder having a pocket therein; whose bottom edges define an obtuse angle. The insert comprises an elongated body of rectangular cross section having a flat top surface along one edge of the body and a pair of angular bottom surfaces extending from a central point of the body and inclined toward and extending to said top surface at a corresponding included obtuse angle. These inclined surfaces define a pair of separately usable transverse cutting edges at the opposite ends of said body which is adapted for snug registry within said pocket. Said pocket also defines within the tool holder a back up plate against which the insert bears. The insert, one or more, is held down within said pocket by a clamp which bears across the top edges of said inserts. A cam lock device is also mounted upon said holder to apply lateral pressure to the insert holding it snugly against the back up wall.