Abstract: A method for selectively relieving sharp edges in tools used in die cutting web or sheet-type work material which includes providing a machining apparatus for supporting the tool thereon, where the machining apparatus includes a rotary cutter mounted thereon and moveable relative to the tool. The method also includes providing a controller having machine readable shape data corresponding to at least one of the tools stored therein, and operating the controller to determine, responsive to the stored shape data, locations of edge segments defined by the tool against which the work material will impinge as the work material is advanced onto the tool in a first direction.

Abstract: A clamping module has a retractable drawbar and pivoting expansion members. The expansion members are pivotable from a first position having an effective diameter which is less than the minimum diameter of the workpiece hole through which the drawbar and expansion members are extended and a second position engaging the workpiece so as to transmit an axial force from the drawbar through the expansion members to the workpiece sufficient to secure the workpiece.

Abstract: A slotting cutter including a support disc rotatable in a predetermined direction on a central axis. The support disc is of a generally cylindrical shape having a first side and a second side, and an outer periphery. A plurality of pockets including a cartridge assembly are staggered about the outer periphery of the support disc and include a cutting insert secured to each cartridge assembly. Each cutting insert includes at least one cutting edge. The cutting insert extends laterally outwardly beyond the first side of the support disc and is spaced from the second side of the support disc such that the cutting edge of adjacent inserts are positioned to laterally overlap thereby providing an increased effective cutting path width.

Abstract: A system and method for inscribing an item is provided. The system includes a housing having a door, an inscriber, and a support. The inscriber is disposed in the housing and is operable to inscribe the surface of an item secured in an item carrier. The support has a positioning structure that is configured to engage the item carrier and establish a reference point so that the location of the surface of the item with respect to the support is determinable. The support moves between a loading position and an inscribing position to position the item for inscribing. There is also provided a controller that governs the movements of the inscriber and includes an input device. The input device is moveable between a first position to receive characteristics about the item to be inscribed and a second position to receive a message to be inscribed on the surface of the item.

Abstract: A multi-purpose machine tool is provides for high volume secondary operations. Multiple machining heads and eight degrees of freedom provide for maximum versatility and adaptability for convenient set-up.

Abstract: A slotting cutter including a support disc rotatable in a predetermined direction on a central axis. The support disc is of a generally cylindrical shape having a first side and a second side, and an outer periphery. A plurality of pockets are staggered about the outer periphery of the support disc and includes a cutting insert secured in each pocket. Each cutting insert includes at least one cutting edge. The cutting insert extends laterally outwardly beyond the first side of the support disc and is spaced from the second side of the support disc such that the cutting edge of adjacent inserts are positioned to laterally overlap thereby providing an increased effective cutting path width.

Abstract: A tool changer for a machine tool having a toolhead assembly including a spindle with device for detachable securing a tool thereto, generally consisting of at least one device for holding a tool detachably securable to the spindle, pivotally connected to the assembly and angularly displaceable in a plane including the axis of the spindle between a retracted position and an extended position for transferring a tool between the tool holding device and the spindle; and device for angularly displacing the tool holding device between such retracted and extended positions.

Abstract: A fixing device for fixing a tool, preferably a turning tool, to a toolholder, includes a shank and at least one cutting part. The toolholder has an insertion opening for accommodating the tool shank. The fixing device includes a clamping element which is stored in such a way that it can partially rotate in the holder around an axis of rotation which is perpendicular to the axis of insertion of the insertion opening. The clamping element also includes a partially cylindrical surface section which is eccentric in relation to the axis of rotation. Furthermore, the shank surface has a partially cylindrical, open-edged recess perpendicular to the shank axis, into which recess the clamp element can be screwed by its partially cylindrical surface section when mounting the tool shank.

Abstract: In an interference fit type cutting tool according to the present invention, a head section and a shank section are fitted together by shrinkage fitting. The shank section is provided with a shaft portion and a taper portion. The head section is provided with a hole portion to be fitted on the shaft portion, and a tapered portion to be fitted on the taper portion. The hole portion and the tapered portion have an interference, and the inner diameters thereof are smaller than the outer diameters of the shaft portion and the taper portion. Two-surface restraint is established by fixing the shaft portion and the hole portion, and the taper portion and the tapered portion with the interference pressure by shrinkage fitting. A key is formed on the leading end face of the shaft portion, a key groove is formed in the bottom face of the hole portion, and the key and the key groove are fitted together.

Abstract: A portable device for refurbishing an edge of an airfoil is provided that has an edge shaper and airfoil positioners that positively engage the airfoil. A method for refurbishing an edge of an airfoil is also provided that includes the steps of (a) providing the portable refurbishing device; (b) locating the edge shaper and the airfoil edge relative to one another with the positioners; and (c) moving one of the device or the airfoil relative to the other along the airfoil edge.

Abstract: A cutter head of a milling tool is equipped with machining elements which can be fastened in respective recesses of a rotary body by one or more clamping wedges. On the rear side of the individual machining element there are serrations which co-operate with serrations formed in a rear wall of the recess. The serrations extend generally parallel to an axis of rotation of the cutter head. A bottom wall in the recess is divided into a plurality of wall parts which are separated by a first axially facing abutment surface against which an axially facing a second abutment surface on the machining element can be engaged, to define an exact initial mounting location for the machining element.

Abstract: A replaceable cutting head is adapted for co-axial coupling thereof, along a coupling axis, with a tool shank in a self-clamping fashion. Both the cutting head and the tool shank have a mounting portion comprising a centering section and a positioning section. The centering section is formed with a peripheral centering surface which extends circumferentially with respect to the coupling axis and has a substantially conical shape at least at two portions thereof. The positioning section has at least two peripherally disposed and circumferentially extending and spaced apart positioning surfaces adapted for the provision of an axial support of the cutting head on the tool shank. Each positioning surface is inclined with respect to the coupling axis so that an axial distance therefrom to a broad end of the peripheral centering surface increases in a direction generally corresponding to the direction of cutting forces acting on the cutting edge during a cutting operation.

Abstract: A cutting insert for mounting on a tool holder of a cutting tool, comprises a front cutting portion having an operative front surface associated with at least one cutting edge, and a trailing mounting portion. The trailing mounting portion has upper, lower and side walls extending from the front cutting portion to a rear abutment wall of the trailing mounting portion oriented generally co-directionally with said operative front surface. The side walls of the trailing mounting portion meet with the rear abutment wall at rear edges. The rear abutment wall comprises two lateral surfaces and a central surface therebetween, the lateral surfaces converging from the rear edges in the direction towards the front cutting portion, and the central surface protruding, in the direction away from the front cutting portion, rearwardly from the lateral surfaces and meeting therewith at merging edge regions.

Abstract: There is provided a rolled plate joining apparatus equipped with a truck that can travel reversibly in the rolling direction, tailing end pinch rolls that are mounted on the truck and can be moved vertically with the tailing end of a preceding rolled plate pinched horizontally, leading end pinch rolls that are mounted on the truck and can pinch horizontally the leading end of a succeeding rolled plate, machining apparatuses for cutting one surface of the tailing end of the preceding rolled plate and the other surface of the leading end of the succeeding rolled plate, and a pressure welding apparatus for compressing the preceding rolled plate and the succeeding rolled plate with the machined surfaces of the preceding rolled plate and the succeeding rolled plate overlapped to reduce them approximately to the thickness of the rolled plates, including a tailing end centering apparatus placed between the tailing end pinch rolls and the pressure welding apparatus for pressing the opposite width ends of the tailing

Abstract: A guide attachment apparatus for guiding a rotary hand tool of the type which includes an outer enclosure, a rotatable collet adapted to retain a bit adapted for removing grout from a work surface or other activity. The guide attachment apparatus includes a housing and a slide. The housing has a lower portion and an upper portion, with the lower portion having a base that is located in a plane which is at an acute angle from the axis of rotation. The housing further includes a viewing opening, for viewing the bit as it engages a work surface, an opening for receiving the slide, and a locking mechanism for locking the slide in a position relative to the housing. The slide is attachable to the housing and also includes a coupling mechanism to couple the slide to the rotary hand tool.

Abstract: In a cemented carbide cutting tool made of a tungsten carbide-based alloy comprising 8 to 13 percent by weight of Co and 0.1 to 3 percent by weight of Cr as constituents for forming a binding phase, the balance being tungsten carbide as a constituent for forming a dispersing phase and incidental impurities, the rate of the dispersing phase to the total of the dispersing phase and the binding phase being in a range of 72 to 90 percent by area and the average particle diameter being 1 &mgr;m or less according to measurement of an electron microscopic texture; the dispersing phase of the cemented carbide cutting tool made of a tungsten carbide-based alloy comprises a dispersing phase composed of ultra-fine particles dispersed in a matrix and having a particle diameter of 100 nm or less, and the ultra-fine particles comprise a Co based alloy.

Abstract: The present invention relates to an apparatus for machining workpieces (W1 to W4) by stock removal, in particular the main (a1 to a5) and/or connecting rod bearing journals (b1 to b4) of crankshafts. For this purpose the apparatus is equipped with at least two guideways (7, 8) which are distanced from one another and are arranged parallel with respect to one another and on which at least one workpiece fixture (9, 10) holding a workpiece (W1to W4) each can be moved from a transfer position (P1, P2) to a working position (A1 to A6), and with two discoid cutters (17, 18, 21) of which each can be moved on a cutter guideway (13, 14, 19), which is arranged between the guideways (7, 8), from a first working position (A1, A2, A5) in which it works on the workpiece (W1, W3) held by the first workpiece fixture (9) to a second working position (A3, A4) in which it works on the workpiece (W2, W4) held by the second workpiece fixture (10).

Abstract: A cutting insert clamping mechanism for use in a cutting tool. The cutting tool has a body portion and a clamping portion. The clamping portion includes a base jaw and a clamping jaw. The clamping jaw has on its lower side a forward clamping surface separated by a recess from a rearward clamping surface. A first narrow bridge section connects the clamping jaw to the body portion of the cutting tool. A second narrow bridge section extends generally towards the rearward clamping surface. As a result of the two narrow bridge sections, the forward and rearward clamping surfaces can resiliently bend independently, and thereby are capable of applying independent clamping forces to the insert.

Abstract: A rotary cutting tool is disclosed having an evacuation bore in a shank and generally radially extending passages opening to the bore to conduct away material being removed by cutters. Intersecting cutters are disposed at the intersections of right and left-hand flutes in the tool shank. The right-hand flutes extend along the entire length of the tool shank. The left-hand flutes extend from one end of the shank to an opposite end spaced from the lead end of the shank to leave only the end portion of the right-hand flutes extending to a lead end of the tool shank.

Abstract: A combined apparatus for making piston rings is disclosed which is provided with an interior-exterior working machine (1) operable under synchronous control by an NC unit (36) for machining both inside and outside of a workpiece (16) composed of a stack of piston ring workpieces brought and held together; a severing machine (41) for severing the workpiece (16) longitudinally thereof; and a common bed (1a), wherein the interior-exterior working machine (1) as a first machine body and said severing machine (41) as a second machine body are mounted adjacent to each other on the common bed (1a).