Abstract: A cutting tool replacement member including: a lower surface which serves as a seating surface; an upper surface opposed to the lower surface; and a side surface connected to the upper surface and the lower surface. In a top view, the upper surface includes, in an intersection between the upper surface and the side surface, a reference side edge and an inclined side edge inclined relative to the reference side edge. The side surface includes a first side surface part connected to the reference side edge of the upper surface, and a second side surface part connected to the inclined side edge of the upper surface. At least one of the first side surface part and the second side surface part is provided with an overhanging part that, in a top view, protrudes outwardly with respect to the reference side edge or the inclined side edge.

Abstract: An accessory for a hand-held power tool has a first air channel and a second air channel. In the first air channel, a first air stream for transporting dust particles is routed into a dust-collecting box. In the second air channel, a second air stream for transporting dust particles into the dust-collecting box or into a further dust-collecting box is routed.

Abstract: The present invention is provided with: gear chamfering tools that perform cutting for chamfering a tooth profile ridge section of a gear to be cut; tool holding parts for holding the gear chamfering tools at one end portion thereof; substantially linear movement means which cause substantially linear movement of the other end portion opposed to the one end portion for holding the gear chamfering tools in the tool holding parts; and circular movement means for causing circular movement of an intermediate portion between the one end portion for holding the gear chamfering tools and the other end portion subjected to the substantially linear movement by the substantially linear movement means in the tool holding parts. By combining the substantially linear movement means and the circular movement means, substantially elliptical movement of tip end parts of the gear chamfering tools is achieved.

Abstract: A cutting tool holder of the kind in which the fastening screw (securing member) remains engaged with the tool holder seat during mounting/dismounting of the cutting insert. The seat is further formed with a support surface configured for engaging and providing support to the head portion of the securing member at least in the securing position.

Abstract: A dental milling machine has idle receptacles arranged in a storage chamber for storing a plurality of blanks. The blanks each are placed without frame as a frameless blank in the idle receptacles. A transfer device with a transport arm is arranged in the storage chamber. A work chamber adjoins the storage chamber. A transfer opening is arranged between work chamber and storage chamber. The transport arm grips a frameless blank stored in the storage chamber and moves it through the transfer opening into the work chamber. A workpiece holder arranged in the work chamber receives the frameless blank from the transport arm. The workpiece holder grips the frameless blank by a receiving rim of the frameless blank. The workpiece holder, for milling the frameless blank in the work chamber by a milling tool, holds by a clamping action the frameless blank at the receiving rim.

Abstract: A cutting tool includes a tool body having a peripherally disposed outer insert receiving pocket and an interiorly disposed inner insert receiving pocket with a cutting insert resiliently clamped therein. The tool body includes a through recess at least partially circumferentially bounded by a recess circumferential surface. A resilient clamping member extends into the through recess. The inner insert receiving pocket is formed by the resilient clamping member and a recess pocket portion of the recess circumferential surface. A chamfering cutting insert may be retained by the resilient clamping member, without the use of an additional, separate clamping device.

Abstract: In a cutting insert according to an embodiment of the present invention, an upper surface sequentially includes a first rake surface and a second rake surface. The first rake surface being inclined toward the lower surface as going inward from the cutting edge at a first rake angle on a basis of a perpendicular plane perpendicular to a central axis extending between the upper surface and a lower surface. The second rake surface is located more inward than the first rake surface and is inclined toward the lower surface at a second rake angle different from the first rake angle on the basis of the perpendicular plane. An intersecting part of the first rake surface and the second rake surface includes a protruded part located at a highest position in a region of the intersecting part along the second side surface. A cutting tool with the cutting insert, and a method of producing a machined product by using the cutting tool are also provided.

Abstract: The present application provides a method for machining a flange face of an aluminum alloy hub, comprising the steps of: (I) pre-machining a hub flange; (II) machining two times with a 120° R3 boring tool with a total machining amount of 2 mm, and then reserving a machining allowance of 2.4 mm on the flange face blank after processing; (III) machining two times with the 120° R3 boring tool with a total machining amount of 2 mm, and then reserving a machining allowance of 0.4 mm on the flange face blank after processing; (IV) machining with a 95° R0.8 hook tool, and then reserving a machining allowance of 0.05 mm on the flange face after processing; and (V) machining with the 95° R0.8 hook tool, then machining the remaining flange allowance, thus completing the machining.

Abstract: A device for more efficient coupling and de-coupling of a hole saw to an arbor. A hole saw has a bottom wall with a central threaded hole. The arbor's clamping device has first and second thread-engaging parts for engaging the internal thread in the hole saw's bottom hole. The thread-engaging parts are moveable with respect to one another perpendicular to the longitudinal direction of the hole saw. When the thread-engaging parts are in a first, disengaged position, the clamping device allows retraction from or insertion into the hole saw's bottom hole substantially longitudinally. When the thread-engaging parts are in a second or engaged position having a larger circumference, the clamping device engages the internal thread in the hole saw's bottom hole for clamping the clamping device in the hole. The clamping device used in the hole saw provides a quick-coupling for mounting a hole saw on an arbor.

Abstract: A machining unit for use on a machining tool has a head carrier that is attachable to the machine tool and has a head carrier housing, a swivel head that is provided to swivel relative to the head carrier about a swivel head rotation axis and has a swivel head housing, a spindle head that is attached to the swivel head and has a working spindle, and a cable run that extends inside the head carrier housing to the swivel head and has a plurality of members that are arranged in succession along the cable run and are connected movably together. Adjacent members are in this case able to rotate and swivel relative to one another and each member has a central piece and a sheathing spaced apart therefrom. The central piece is connected to the sheathing via one or more connection elements.

Abstract: In an embodiment, a system includes a tool that includes an exhaust port and a vacuum. The vacuum also includes an exhaust intake port configured to couple to the exhaust port of the tool. The exhaust intake port may be configured to receive exhaust from the exhaust port. The vacuum includes a vacuum intake port, a vacuum exhaust port opposed to the vacuum intake port, and a mixing chamber between the vacuum intake port and the vacuum exhaust port. The vacuum intake port, the vacuum exhaust port, and the mixing chamber may all be on a same centerline.

Abstract: A skiving tool comprising a cutter head (2) having a plurality of cutter blade mounting and positioning slots (8) arranged spaced, preferably equidistant, about the periphery (7) of the cutter head with the blade slots, and hence the cutting blades (4), preferably oriented perpendicular to the axis of rotation (A) of the cutter head. Alternatively, the blade slots may be inclined from the perpendicular orientation by less than 50 degrees, preferably less than 20 degrees, thereby forming a conical shaped cutter. Additionally, the blade slots may be positioned to extend radially from the cutter head axis whereby the longitudinal axis of a cutter blade will intersect the cutter head axis, or the blade slots may be radially offset from the cutter head axis. The blade slots may have any cross-sectional shape such as square, rectangular or those types having generally V-shaped seating surfaces (10) comprising a pair of angled mounting surfaces (12, 14) each less than 90 degrees.

Abstract: Embodiments of a quill stop are disclosed. The quill stop can move between an open and closed position. The quill stop has a left and a right securing member, a locking element, a right arm, a left arm, and a left arm spring. The right arm can actuate the locking element out of engagement with a locking projection so that the right securing member and the left securing member can move relative to each other and allow a rod to be inserted between them. The locking element prevents unwanted actuation of the quill stop during operation.

Abstract: In a cutting insert according to an embodiment of the present invention, an upper cutting edge includes, sequentially from a first corner to a second corner, a corner cutting edge, a minor cutting edge inclined as separating from the corner cutting edge at a first inclination angle on a basis of a vertical plane perpendicular to a central axis extending between upper and lower surfaces, and a major cutting edge inclined as separating from the minor cutting edge at a second inclination angle on the basis of the vertical plane so as to become more closer to the lower surface than the minor cutting edge. A cross section of a rake surface obtained by cutting an inwardly located end portion thereof along a direction of the central axis has a straight line shape or concave shape in a region crossing over at least a minor rake surface and a major rake surface. A cutting tool with the cutting insert, and a method of manufacturing a machined product by using the cutting tool are also provided.

Abstract: The technical objective of the present invention is to provide a cutting insert that has an improved fastening property with a cutting tool, thereby preventing reduction of the service life. To this end, the cutting insert according to the present invention has three corners along the circumference thereof; an upper main cutting edge, which is formed on the edge between the upper surface and the first side surface, and an upper sub cutting edge, which is formed on the edge between the upper surface and the second side surface, are continuously disposed between respective corners; the lower surface has the same shape as that of the upper surface; and the angle defined between the upper main cutting edge and the upper sub cutting edge, which are placed on both sides with reference to each corner, is larger than or equal to 85° and is smaller than 90°.

Abstract: An on-car brake lathe is provided with a runout compensation system configured to monitor the rotational position of a pair of slant discs within an aligning joint of the on-car brake lathe. The system monitors the amount of runout present between the rotating components of the on-car brake lathe and the wheel hub to which the on-car brake lathe is secured. The system calculates the appropriate rotational position for each slant disc within the aligning joint required to impart a necessary adjustment in the wheel coupling rotational axis in order to align the on-car brake lathe with the rotational axis of the wheel hub. Finally, an adjustment mechanism is activated to rotationally drive each slant disc directly to the calculated rotational position with a minimum amount of rotational movement based on the current rotational position of each slant disc and the required calculated rotational positions.

Abstract: A rotary tool can be adapted for removing material from a workpiece such as a lower receiver. A rotary tool can have an adapter with a major diameter, and a cutter head with a minor diameter. The major diameter of the adapter can reduce deflection and chatter, while the minor diameter of the cutter head can be used to manufacture lower receivers with accuracy. The rotary tool can be adapted to be engaged with a rotary power tool.

Abstract: A toolholder assembly includes a toolholder having a rearwardly facing toolholder shank, a base member having a bore configured for receiving the toolholder shank, a canister configured for receipt in the bore of the base member, a lock rod with an axial forward and an axial rearward end, wherein the axial forward end of the lock rod includes a compression void such as a compression aperture or compression slot formed therethrough, and at least one locking member in communication with the axial forward end of the lock rod.

Abstract: A method for producing a toothed workpiece gear, wherein the workpiece gear is clamped or fastened to a workpiece spindle, and a cutting tool having cutting teeth is clamped or fastened to a tool spindle. The tool spindle and the workpiece spindle are rotationally driven at a coupling ratio of the angles of rotation thereof having a periodic non-linearity or an axial distance from each other that changes periodically. The cutting teeth machine forms left and right tooth flanks of the teeth of the workpiece gear using left and right cutting edges in a chip-removing manner. A radial run-out error or a pitch error of the cutting tool is determined. The flank line shape errors of the right and left tooth flank resulting from the radial run-out error or the pitch error are reduced by the periodic non-linearity of the coupling ratio or the periodic change in the axial distance.

Abstract: A drive shaft for a machine tool is connectable to a drilling tool. The drive shaft contains a cavity extending substantially over the entire length of the drive shaft and along the axis of rotation where the cavity contains an inflow opening through which water can be fed along the drive shaft into the drilling tool. An insert device is provided in the cavity, through which, to cool the drive shaft, the water is guided first in a first direction and then in a second direction where the insert device contains a first curved guide element and a second curved guide element for separating the water which is guided in the first direction from the water which is guided in the second direction. The cross-sectional area of the first curved guide element is designed point-symmetrically about a center longitudinal axis to the cross-sectional area of the second curved guide element.