Abstract: Railway wheel milling tool system including a railway wheel truing cutters and tangential railway wheel milling inserts are disclosed. The tangential milling inserts have at least four indexable cutting edges, each with a central wiper cutting edge segment between two convex cutting edge segments. The milling inserts may allow both the flat portion and curved portion of a railway wheel to be machined with an improved surface finish. The railway wheel truing cutters comprise a plurality of insert pockets structured and arranged to receive the tangential railway wheel milling inserts.

Abstract: A rail drill drive train can include a common drive end between a single drive motor and a common gear. A speed train end can extend from the common gear to rotate the drill spindle. A feed train end can independently extend from the common gear to advance and retract the drill spindle. The speed train end can include a sprag gear so that, without unmeshing any gears, the drill spindle is not unnecessarily rotated in the reverse direction when the drive motor is reversed to retract the drill spindle. A rail drill control circuit and related sensors can enable automatic operation throughout the complete drilling cycle without any manual input from the user other than starting the cycle. Such a fully automatic drilling cycle can minimize overall cycle time to preserve battery life and can free the user to perform other tasks between drill moving and clamping operations.

Abstract: A cutting tool for machining mechanical parts. The cutting tool incudes a tool body with a central axis (A) and a gripping diameter. A tool head is adjacent to the tool body in the direction of the central axis (A) and includes of a sprinkling region and a cutting portion having a cutting diameter which is smaller than the gripping diameter. At least one lubrication duct extends through the tool body and opens into a sprinkling hole located in the sprinkling region. A directional sprinkling ring is provided for attachment to a ring connection region of the tool body. The ring connection region is adjacent to the sprinkling region and the directional sprinkling ring is configured in such a way that it delimits, with at least one portion of the sprinkling region, a distribution space, and the cross section of the distribution space is reduced in the direction of the cutting portion.

Abstract: A drill device includes a drill tip and a drill body having a rear portion. The drill tip includes at least a first clearance surface and the drill body includes at least a first land having a margin. An edge is disposed between the first clearance surface and the margin. A textured area having a plurality of recesses extends along at least a portion of the margin, in the direction of the rear portion of the drill body, from a position of 200 ?m from the edge, from a position on the least first clearance surface, or from a position therebetween.

Abstract: The present invention discloses a scrap removing device for cutting a wheel rim which comprises a main body having a working surface, a wheel rim positioning member, a first blowing member and a second blowing member sequentially disposed on the working surface from a top side thereof.

Abstract: A rotational force transmission mechanism includes a shaft and an engagement member. The shaft is rotatable about a first axis. The shaft includes a leading end portion having a second groove and a first groove which is configured to receive a rotatable portion of a tool holder so that the shaft rotates the rotatable portion about the first axis. The engagement member is movable along the first axis between a first position and a second position and rotatable about the first axis together with the shaft. The engagement member includes an engagement portion configured to be received in the second groove. At least one of the shaft and the engagement member has an inclined surface that moves the engagement portion in a direction toward the first axis when the engagement member moves from the first position to the second position.

Abstract: A cutting insert according to one embodiment includes: a rake face; a flank face continuous to the rake face; and a cutting edge constituted of a ridgeline between the rake face and the flank face. A coolant flow path is provided inside the cutting insert. One end portion of the coolant flow path opens in the flank face to form a coolant ejection hole. The flank face is provided with a coolant guide groove extending from the coolant ejection hole toward the cutting edge with a base end portion of the coolant guide groove being connected to the coolant ejection hole and with a front end portion of the coolant guide groove being disposed at a position close to the cutting edge relative to the base end portion.

Abstract: A rotary cutting tool that implements a chip space in proportion to a feed-per-tooth is proposed. The rotary cutting tool includes a cutting part in which a plurality of cutting teeth and flutes are alternately formed, wherein a cross-section of the cutting part perpendicular to a central axis is divided into a plurality of cutting tooth spaces defining a section between cutting edges of adjacent cutting teeth on the basis of the central axis, such that all of the cutting tooth spaces are designed in different sizes, or some of the plurality of cutting tooth spaces are set in different sizes from the other cutting tooth spaces.

Abstract: Provided is a machine tool capable of facilitating switching moving ranges of the moving unit. A moving-side cover provided on the moving unit covers part of a position of the driving apparatus in the moving direction. A supporting-side cover is provided in a position on a side of the first moving range of an end of the moving-side cover on a side of the second moving range in the moving direction to continuously cover the part of the position of the driving apparatus in the moving direction in cooperation with the moving-side cover in the first use state. The supporting-side cover forms a clearance in the moving direction with respect to the moving-side cover in the second use state. A slide cover is mounted on one of supporting-side cover and the moving-side cover slidably in the moving direction to close the clearance when slidably drawn out in the moving direction.

Abstract: An angle head holder is installed on a spindle having a positioning block mounted on its outer surface with a constraining groove. The angle head holder includes a body base, a driving shaft, a holder assembly, and a positioning device. The driving shaft and the holder assembly are disposed in the body base. The positioning device has a fixing ring and an adjusting assembly. The fixing ring is sleeved on the body base and has a receiving slot. The adjusting assembly has a connecting block, a positioning pin, and at least one lever pin. The connecting block is mounted to the fixing ring and has a receiving groove. The positioning pin protrudes out of the receiving groove, is limited by the constraining groove, and has a retaining groove. The at least one lever pin is mounted in the receiving slot and the retaining groove.

Abstract: A cutting insert exhibits superior chip control during grooving and cross feeding. Embodiments include a cutting insert having an upper face, a front face forming an intersecting ridgeline with the upper face, side faces connected to the front face forming intersecting ridgelines with the upper face, a front face cutting edge on the intersecting ridgeline between the upper face and the front face, and side cutting edges on the intersecting ridgelines between the upper face and the side faces. The upper face includes a first portion and an undulating portion on which peaks and troughs are formed continuously in a direction heading away from the front face cutting edge, the undulating portion provided on both lateral direction sides of the first portion. The undulating portion is configured such that the side cutting edges, when seen from the side, each have a continuous undulating shape from the front face cutting edge.

Abstract: A cutting tool comprising at least one blade arranged at an axial cutting head end of a tool carrier. The tool carrier comprises a chip-removal space that receives material chips removed by the blade. In some embodiments, the blade is adjacent to a chip passage feeding into the chip-removal space, which passage is limited by a radial chip gap partially limited by the blade and from there by a first and second passage surface, the first passage surface a continuation of the chip surface of the blade, the second passage surface running at an angle and widening relative to same, and is closed and limited at least in an axial sub-section facing the cutting head end, all around by a peripheral wall as a third passage surface, wherein at least one coolant channel is formed within the peripheral wall, which is provided to guide coolant to the cutting head end.

Abstract: A processing apparatus 1 includes: a workpiece-set-position recognition unit 114 that moves an arm distal-end portion to a specified position measurement point to measure a shape of a workpiece in a workpiece set state in which the workpiece is positioned by a workpiece positioning unit, and thereby recognizes a set position of the workpiece; a processing-point-information generation unit 115 that, based on the set position of the workpiece and processing-target-portion information 124 indicating a position of a target portion of the workpiece for specified processing, generates processing-point information 125 indicating a processing point which is a movement point of the arm distal-end portion to perform the specified processing on the workpiece using a processing tool in the workpiece set state; and a workpiece-processing control unit 116 that moves the arm distal-end portion to the processing point based on the processing-point information 125 to perform the specified processing on the workpiece using the

Abstract: A cutting tool includes a substrate and a coated film arranged on the substrate. The coated film includes a first layer. The first layer includes a plurality of crystal grains. The crystal grains are composed of AlxTi1-xCyN1-y, wherein x is more than 0.65 and less than 0.95, and y is not less than 0 and less than 0.1. In a first region, the crystal grains have an average aspect ratio of not more than 3.0. In a second region, the crystal grains have an average aspect ratio of more than 3.0 and not more than 10.0. The crystal grains include crystal grains having a cubic crystal structure. The first layer has a ratio of an area occupied by the crystal grains having a cubic crystal structure of not less than 90%. The first layer has a thickness of not less than 2 ?m and not more than 20 ?m.

Abstract: Methods and apparatus for forming an aperture in a composite component are provided. For example, a method for forming an aperture in a ceramic matrix composite (CMC) component comprises, based on a final dimension of the aperture, selecting a tool having a tool size and a cutting surface; selecting an angle at which to cut the component with the tool; cutting a back surface of the component with the tool, the cutting surface positioned at the angle; repositioning the tool relative to the component; and cutting the aperture through to its final dimension. The tool may be a core drill with a diameter within a range of 60% to 90% of the aperture final dimension. The angle may be within a range of 10° to 60° with respect to the back surface. The aperture may be cut through to its final dimension from a front surface of the component.

Abstract: According to one implementation, a rotary cutting tool includes: a body without a back taper; and a cutting edge part integrated with the body. The body has a flow path of a cutting oil inside the body. The cutting edge part has a first supply port that supplies the cutting oil toward a workpiece. The body has at least one second supply port that supplies the cutting oil to a clearance formed between a bush for positioning and the body. The bush is used by being inserted in the body.

Abstract: Provided is an apparatus for stably removing plugging even in a state in which combustible gas or liquid remains in a pipe and precisely removing plugging even using small force.

Abstract: The invention relates to a cutting tool comprising a main part which extends along a longitudinal center axis or rotational axis, at least one cutting insert holder mounted on the main part such that it can be radially adjusted, and an adjusting device for adjusting the position of the cutting insert holder relative to the main part. The adjusting device comprises a threaded sleeve which is non-rotatably but axially movably mounted in the main part and a screw drive driving the threaded sleeve.

Abstract: A new and improved microfabrication device, microfabrication method, transfer mold, and transfer object that can suppress a defect are provided. A microfabrication device comprises a tool mounting portion, a predetermined cutting tool, an oscillator, and a controller, wherein the controller performs a cutting process to satisfy at least one of: a cutting condition (1) that oscillations at a start point and an end point of each set are in phase with each other; and a cutting condition (2) that oscillations of the sets are in phase with each other.

Abstract: A facing head includes a fixed part, couplable with a head of a machine tool via an interface plate and a rotary part, wherein a compartment is placed internally to which drive means and measurement means are housed for driving and measuring a radial slide supported by the rotary part so as to close the compartment, and at least one electric collector for controlling the drive means and measurement means. A continuous gasket contacts the radial slide and a fluid collector supplies the compartment with pressurized air to seal the compartment. The fluid collector includes a rotary portion with first fluid routes, and a fixed portion integral with the fixed part of the facing head with second fixed fluid routes together supplying the rotary part with a coolant, supplying the compartment with pressurized air, and transporting the oil for locking the radial slide.