Abstract: The invention discloses a wheel machining tool. A rough turning tool and a finish turning tool are respectively arranged on two sides of a tool head, the primary declination angle ? of the rough turning tool is set to 90° to 120°, and the primary declination angle ? of the finish turning tool is set to 85° to 95°; the axial height difference between the rough turning tool and the finish turning tool is set to 0.2-0.5 mm; the distance c between the rough turning tool and the tool head is set to 5-8 mm, and the distance b between the finish turning tool and the tool head is set to 3-5 mm. The rake angle ? of the rough turning tool is set to 12°-15°, the rake angle ? of the finish turning tool is set to 14°-17°.

Abstract: A contouring head includes a sleeve and coaxially mounted spindle connected by means of a yoke to a slide mounted by first and second sets of roller bearings to and between a slide track and a pair of keeper plates which hold the slide to the slide plate and within a slide track formed therein. A yoke interconnects the spindle to the slide to convert axial motion of the spindle into radial motion of the slide. A tool mount in the form of a pot is connected to the slide to control the radial position of a single edged cutting tool. A cover is mounted on the keeper plates and slide plate.

Abstract: A deep hole drilling system and methods provide stability and cutting performance to produce deep holes having desired straightness. The system may include a replaceable cutting head provided with a center cutting member and first and second side cutting inserts. The tool provides a major diameter with the OD cutting margins on the replaceable side inserts, as well as possibly cutting margins on the center cutting member. Adjustment mechanisms are provided to adjust the center cutting member and/side cutting inserts.

Abstract: A cutting tool is provided that is operable to provide a circular cut or hole in a material or work piece. In various embodiments, a guide member is provided that facilitates alignment of a cutting edge of the invention with a pre-existing cut, hole or aperture. Devices and methods of the present disclosure provide for quick and easy centering of a cutting tool in order to form an enlarged hole that is concentric with a pre-existing hole.

Abstract: The invention relates to a rotary tool as well as to a carrier and a cutting insert of such a rotary tool. The carrier comprises a seat, which comprises several lateral surfaces, between which the cutting insert can be inserted. The cutting insert comprises, for each of the lateral surfaces, a contact surface which abuts against the respective lateral surface in an inserted state. At least one coolant channel is formed, which comprises a first partial channel and a second partial channel, which adjoins the first partial channel, wherein the first partial channel proceeds within the carrier up to an outlet opening, wherein the second partial channel proceeds within the cutting insert from an inlet opening up to a coolant outlet, wherein the outlet opening and the inlet opening form an interface for transferring coolant from the carrier to the cutting insert. The outlet opening is arranged in one of the lateral surfaces and the inlet opening is arranged in one of the contact surfaces.

Abstract: Disclosed is a method for processing a sputtering target comprises: processing a sputtering target by rotating a cutting tool which has a blade portion with an arc-shaped concave curved surface on a cross section along the axis, around an axis thereof, to chamfer the target at a corner portion between a sputtering surface and a side surface in the sputtering target with an arc-shaped concave curved surface of a blade portion in such a manner that the corner portion is approximated to an arc-shaped aimed R face, wherein the sputtering target is chamfered at the corner portion in such a manner that a curvature radius Ra of the concave curved surface in the blade portion is equal to or more than a curvature radius Rb of the aimed R face on the cross section along the axis and that both ends of the concave curved surface in the blade portion are positioned away from the sputtering target.

Abstract: The technical objective of the present invention is to provide a double-sided cutting insert having a high feed rate, which can increase the edge strength and reduce the cutting load, and thus can be suitable for high feed rate processing.

Abstract: A machine tool includes a trough which collects chips; a mobile unit which is located above the trough and moves in the longitudinal direction of the trough on a bed, is configured from a first beam member, a second beam member, and a connecting member connecting the first beam member and the second beam member, and is formed with a hollow that opens toward the trough from above; a first guide which supports the mobile unit in such a manner that the mobile unit is movable in the longitudinal direction of the trough; a second guide which faces the first guide across the trough, and supports the mobile unit in such a manner that the mobile unit is movable in the longitudinal direction of the trough; and a cradle, both ends of which are supported by the first beam member and the second beam member.

Abstract: An object of the present invention is to provide a cutting tool capable of expanding a range in which adjustment work can be readily performed and reducing manufacturing cost. Provided is a cutting tool including: a cartridge to which a cutting member having a cutting edge is fixed; a body having at least one cartridge mounting part in which the cartridge is installed; and an adjustment plate installed between walls or a bottom surface constituting the cartridge mounting part and the cartridge, wherein the walls or the bottom surface of the cartridge mounting part has a recessed part for housing the adjustment plate.

Abstract: An insert according to an embodiment includes an upper surface including a corner part, a lower surface, a side surface, and a cutting edge. The cutting edge includes a first cutting edge located at the corner part, a second cutting edge adjacent to the first cutting edge, a third cutting edge adjacent to the second cutting edge, and a fourth cutting edge adjacent to the third cutting edge. Each of the third cutting edge and the fourth cutting edge has a concave curvilinear shape extending downward in a side view. A radius of curvature of the fourth cutting edge is smaller than a radius of curvature of the third cutting edge.

Abstract: An indexable cutting insert has a first corner edge forming a front tip of a cutting edge portion configured to project furthest in the direction of an axis of rotation of an end mill tool receiving the insert. A major cutting edge is descending to come closer to the lower surface of the insert along its extension away from the first corner edge. The minor cutting edge extends from the first corner edge while descending from a point of the cutting edge portion most distant to the lower surface all the way to an inner corner of the insert and has a length of 80%-95% of the length of the major cutting edge including a second corner edge in a side elevation view of the cutting insert.

Abstract: A center for use on a tailstock of a lathe is disclosed. The center comprises an elongated shaft having a proximal end to be secured in a tailstock of a lathe, and a distal end that includes a conical tip for insertion into a center hole in a workpiece. The center also comprises a pivotable arm having a proximal arm end that is rotatably and slidingly secured to the elongated shaft. The pivotable arm has a distal arm end that is rotatable into a position atop the conical tip. The distal arm end has a distal side that includes a center drill, and a proximal side that includes a recess that is seatable onto the conical tip. The conical tip and the center drill have the same rotational centerpoint when the distal arm end is positioned over the conical tip and the conical tip is placed within the recess.

Abstract: A helical broach which eliminates the need for a fixing means for fixing a workpiece during gear machining is provided. The helical broach includes: a plurality of cutting edges; a spiral flute formed between adjacent cutting edges to extend in a spiral manner with a predetermined helix angle with respect to an axial direction of the helical broach; and a gullet formed between adjacent cutting edges to extend with a predetermined helix angle with respect to a circumferential direction of the helical broach. In the helical broach, the expression: 0.5?tan ?/tan(?+?)?0.7 is satisfied, wherein ? is the helix angle of the spiral flute, and (90°??) is the helix angle of the gullet with reference to a central axis of the helical broach. An internal gear machining method using the helical broach is also provided.

Abstract: In an embodiment, a cutting tool includes a holder and a cutting insert. The holder is elongated and includes an insert pocket that is located on a side of a first end. The cutting insert is secured to the insert pocket. The cutting tool further includes a clamp that fastens the cutting insert in the insert pocket, and a screw that comes in contact with the cutting insert and is secured to the insert pocket. The screw includes a first surface including a first engagement portion on a first surface that is located on a side of the first end. The first engagement portion is located within a through-hole included in the screw in a front view of the first end.

Abstract: Provided is a fastening structure having a wide application range and a high degree of freedom of design. A fastening structure includes: a head including a first end surface and a first screw part formed on the first end surface; and a shank including a second end surface and a second screw part formed on the second end surface and threadedly engaging with the first screw part. The first end surface includes a first principal surface oriented in an axial direction of the first screw part and a first step surface oriented in a rotational direction of the first screw part. The second end surface includes a second principal surface oriented in an axial direction of the second screw part and a second step surface oriented in a rotational direction of the second screw part. The first and second principal surfaces face each other and the first and second step surfaces face each other when the first screw part threadedly engages with the second screw part.

Abstract: The present invention is a portable and rechargeable drill system that allows a user to conveniently carry on the user's body and perform work. As a preferred and non-limiting example, the portable and rechargeable drill system is lightweight and is comprised of a drill handpiece, a battery-powered control device, and a securing member or mechanism for the drill handpiece. The drill system may further comprise a control device case or holder. The drill handpiece preferably comprises a first end, a second end, a drill bit-spindle and housing assembly, a drill bit locking mechanism, a motor and housing assembly, and a power cord.

Abstract: The present invention provides a cutting insert in which suitable honing is formed on a cutting edge. The cutting insert is provided with: two end surfaces opposing each other; a peripheral side surface extending between the two end surfaces; and a cutting edge formed on an intersecting ridge between at least one of the two end surfaces and the peripheral side surface. The cutting edge at least includes a major cutting edge and an inner cutting edge. Honing is provided on the major cutting edge and the inner cutting edge. A width of second honing of the inner cutting edge is narrower than a width of first honing of the major cutting edge, as viewed from a side of the end surfaces.

Abstract: A hob for a cutting apparatus including a hollow body of a sintered hard metal composition and a cavity located within the body, the cavity having a volume in the range of about 10% to about 90% of the volume of the body.

Abstract: A saw blade can include a blade body having a cutting edge defined by multiple teeth. The teeth can be disposed in a repeating pattern including a raker tooth, a first set tooth having a light offset to a right side of the blade body, a second set tooth having a heavy offset to the left side of the blade body, a second raker tooth, a third set tooth having a light offset to the left side, and a fourth set tooth having a heavy offset to the right side of the blade body. Each tooth can include a tip, rake face, gullet having a gullet depth, and one or more clearance surfaces. The pitch distance and gullet depth of the heavy offset teeth can be less than the pitch distances and gullet depths of the remaining teeth to provide an increased amount of strength for the heavy offset teeth.

Abstract: An improved machining system for use in a CNC mill for the production of thin, hardened metal implement such as bed knifes includes a laminate mounting substrate with holes for receiving a pair of locator pins therein, at least one of the locator pins configured to displace longitudinally relative to the mounting substrate but not laterally which allows the system to accommodate a wide variety of metal implements. The system also includes magnetic cladding to protect the metal implement from metal chips being attracted by a magnetic element positioned beneath the mounting substrate to the finished product, allowing for higher quality cutting heads in the mill and a more efficient production of finished implements. A method of forming such implements is also provided.