Abstract: A machine tool system of the present invention includes a rotatable spindle capable of releasably gripping a bar, a pusher that biases the bar from a rear end thereof toward a front end thereof to be movable together with the bar in a Z1-axis direction thereof, and an abnormality determining unit that determines whether an abnormality occurs by monitoring movement of the pusher in the Z1-axis direction. The spindle is movable in the Z1-axis direction, and the abnormality determining unit determines that a first abnormality occurs when the moving distance of the spindle differs from the moving distance of the pusher in a state that the spindle grips the bar.

Abstract: A device, a method and a computer program product for machining a workpiece, in particular for cutting teeth into a workpiece, includes a base, a workpiece spindle mounted rotatably about a first axis (A) for receiving the workpiece, a first machining head having a first tool spindle mounted rotatably relative to a first tool axis for receiving a first machining tool, and a second machining head having a second tool spindle mounted rotatably relative to a second tool axis for receiving a second machining tool. At least the first machining head is provided with the first machining tool for power skiving the workpiece and at least the second machining head is variably positionable and/or variably orientable relative to the first machining head and independently of the first machining head.

Abstract: A tool rest includes a plurality of attachment portions to which a plurality of tool holders are detachably attached respectively. Each of the tool holders includes a clamp mechanism for clamping a tool. The attachment portion includes a seat surface on which the tool holder is seated. The tool rest further includes: a first air channel to which air is supplied; a plurality of second air channels branched off from the first air channel and respectively extending toward the plurality of attachment portions, each of the plurality of second air channels being open to the seat surface of a corresponding one of the plurality of attachment portions; and a detector that is provided on a path of the first air channel and detects a state of an airflow.

Abstract: A tool for the rotary and cutting machining of workpieces includes a plurality of blades arranged on the tool body and arranged in blade arrangements, and a securing element that secures the blade arrangements to the tool body so that the blades cannot detach from the tool body during operation. The tool body is produced from plastic. The blades are incorporated into the tool body and the securing element provides a securing strip that is incorporated into the tool body and partially encloses the blade arrangements.

Abstract: A method of fabricating a semiconductor device comprises mounting a carrier substrate and a wafer on a wafer chuck of a wafer chuck apparatus, the carrier substrate and the wafer attached to each other, injecting air into an air member by selectively controlling at least one air injection pipe connected to the air member of the wafer chuck apparatus, tilting the wafer chuck to a predetermined angle in response to the air being injected into the air member, processing the wafer while the wafer chuck is tilted, determining whether to change a tilt angle of the wafer chuck or a position of the wafer, adjusting an amount of air injected into the air member according to a changed tilt angle of the wafer chuck or a changed position of the wafer, and processing the wafer after adjusting of the amount of air in the air member.

Abstract: A method of using a tool can include obtaining a tool which comprises a tool body having a recess and a detent member coupled to the tool body having a leg extending from the tool body, receiving the detent member of the tool body within the recess of the tool body upon one of deformation and movement of the leg by pushing the leg in a radially inward direction against a biasing of the leg in a radially outward direction with an edge of a hole formed in a portion of a pipe, passing the detent member through the hole formed in the pipe, catching the detent member in a removal direction, and moving a pipe coupon with the tool.

Abstract: The present invention describes a cutting device (100) of pipe preservation system (PPS) comprising a body (3.1), a fitting guide (3.2), at least one cutting lever (3.4), at least one cutting blade (3.5), at least one receptacle (3.6) of the cutting blade (3.5), and at least one support structure (300).

Abstract: A drill is provided with a flank at a leading end portion of a body. An oil hole is provided at the flank, having a fan-shaped cross-section. The fan-shaped cross-section is formed by being surrounded by a front-side inner wall surface, a rear-side inner wall surface, an outer peripheral-side inner wall surface, and an inner peripheral-side inner wall surface. Compared to a round hole, a discharge performance of cutting fluid of the oil hole is high. The rear-side inner wall surface curves in a circular arc shape toward the front in a rotation direction. Thus, the drill can secure a distance between a ridge section of the flank and the rear-side inner wall surface to be wide, can suppress stress acting on a section between the ridge section of the flank and the oil hole, and can thus increase a discharge amount of the cutting fluid and also secure a tool rigidity.

Abstract: A tool holder for metal drilling, threading and milling machines comprising three parts, of which the first part has a base forming a plate having an axial appendage for joining the parts together and two diametrically opposed mounting holes for receiving the ends of two shafts fastened to the plate-shaped second part, and two other shafts on the opposite face, the ends of which are seated in diametrically opposed mounting holes in the third part, which has a tubular axial passage and two oval appendages in the opening thereof that are intended to be coupled to the concave sides of the axial appendage of the first part, with the appendages being retained by a circular spring. The three parts are joined together by a ring that is fastened to the axial appendage of the first part.

Abstract: A self-centring device for supporting and guiding bars to be fed to a machine tool, including: a guide body having a through opening, supported rotatably and rotating in a controlled manner around an axis perpendicular to an advancement direction of the bars to be guided, so as to vary the angular orientation thereof around the axis; the guide body is configured to receive and maintain in position the rotating and advancing bars, a return member configured to oppose a suitable preselectable resistance to the rotation of the guide body around the axis so as to maintain a firm coupling and contact of the guide body with the advancing bar, a manual selector member configured to adjust a position and control the angular movement of the guide body. The manual selector member includes a screw arrangement cooperating with an oscillation limiting element to set an angular rest position of the guide body in function of the geometry of the bar to be received and guided to said machine tool.

Abstract: The present invention provides a cutting insert with a lip support providing additional support for the cutting insert. The cutting insert may be secured to a pocket of a drilling tool. The cutting insert may include a front surface, rear surface, and side surfaces. Cutting edges may form at the intersection of the side surfaces and the front surface. A cutting lip may extend rearwardly from the cutting edges with a seating surface under the cutting lip. The transition between the seating surface and the cutting lip may include two chamfers separated by a lip support.

Abstract: A cutting tool which includes a cutter operable to cut a hole defining a first diameter; and a drill bit mechanically coupled to the cutter, the drill bit operable to cut a hole defining a second diameter which can be smaller than the first diameter, the drill bit further includes a tool body having a recess and a detent member mechanically coupled to the tool body which can include a leg extending from the tool body and sized to be received within the recess upon one of deformation and movement of the leg, the leg biased in a radially outward direction by one of a wall of the recess and a biasing element of the tool.

Abstract: There is provided a drill insert for drilling metallic or other materials, comprising a drill insert body with first and second lands at the outside diameter of the body that interface with the wall of a drilled hole. There is provided a coolant relief arrangement at the outside diameter of the drill insert by a plurality of coolant supply channels extending between the leading edge and trailing edge of the interface, to provide coolant relief to the outside diameter of the drill insert at the interface with the drilled hole. The drill inserts of the invention provide reduced friction and heat generation while maintaining high stability, and operate to prevent accumulation of materials on surfaces of the drill inserts at the outside diameter of the drill insert. This enables higher penetration rates and operating speeds while maintaining integrity of the drill inserts.

Abstract: Improvements in tooling for machining systems that utilize machining fluids comprising a supercritical fluid are disclosed. In some embodiments a tool may include a plurality of orifices configured to direct a supercritical machining fluid towards a cutting interface of the tool. In other embodiments, a tool holder may include one or more outlets configured to direct a supercritical machining fluid towards a cutting interface. Moreover, some embodiments, may relate to machining systems including one or more venting channels configured to provide pressure relief for a cavity located behind a tool holder. Embodiments related to machine tools including upstream fluid restrictions for controlling a flow of supercritical machining fluid through a tool are also disclosed.

Abstract: Stepped rotary broaches, and systems and methods employing such broaches, are disclosed herein. In one example embodiment, a stepped rotary broach includes a contact portion integrally formed with or coupled to a support portion. The contact portion includes a face and a periphery. The periphery includes an outer surface and a plurality of step formations, where each of the step formations extends between the face and a respective location along the periphery at which the respective step formation adjoins a respective portion of the outer surface. Each of the step formations includes a respective step including a respective surface region extending in a respective direction about a central axis of the stepped rotary broach. The respective surface regions of the respective steps are respectively positioned more closely to the central axis than are the respective portions of the respective outer surface that respectively adjoin the respective step formations.

Abstract: In one aspect, a swiss-type machine tool is provided that includes a workpiece holding shaft, a workpiece supporting shaft, and a tool holder associated with the workpiece supporting shaft for holding at least one tool. The machine tool includes a drive operable to rotate the workpiece holding shaft and the workpiece supporting shaft around an axis. The workpiece holding shaft has a work holder configured to secure a workpiece to the workpiece holding shaft. The workpiece holding shaft is axially shiftable relative to the workpiece supporting shaft to adjust a position of the workpiece relative to the workpiece supporting shaft. The machine tool further includes a removable workpiece support, such as a guide bushing, configured to be releasably connected to the workpiece supporting shaft and rotate therewith. The workpiece support slidably contacts the workpiece and permits axial movement of the workpiece relative to the workpiece support.

Abstract: The adjustment head is intended for use in the working space of a CNC machine which has a base station set up and intended for the exchange of information with a measuring probe or bore measuring mandrel, which base station is connected to a control of the CNC machine, and comprises a first function module and a second function module, wherein the first function module is divided into a power supply module and a data transmission module, wherein the second function module comprises a machining module for receiving at least one tool, wherein the machining module comprises a tool adjustment device for adjustment the tool in a radial and/or an axial direction and/or in an angular orientation of the tool based on specifications of the control, and wherein the power supply module supplies components of the adjustment head, including the data transmission module and the tool adjustment device, with electrical power, and wherein the data transmission module is arranged and intended for exchanging information concern

Abstract: The present invention surrounds a handle system configured to receive a woodworking tool intended for use in woodturning operations. A blade is constrained between two removable handle sides, with the sides being removably interconnected using magnets wherein the handle sides adapted for being separated without the need for tools. The handle system includes the ability to use a double-ended scraper blade allowing a user to configure the blade to use a first cutting edge, or a second cutting edge as desired.

Abstract: A tool, such as a hole saw, including an open end cap geometry is provided. The end cap includes spokes extending between a hub and a rim. A plurality of openings are defined between the spokes, hub and rim. The area of the openings is substantially large relative to the area of the end cap such that the end cap is relatively lightweight and provides access into the hole saw for debris removal. The spokes are shaped and positioned to provide strength to the end cap.

Abstract: A milling tool cutter includes a tool body, a plurality of cutting inserts, a plurality of clamping studs, a clamping ring, and a detachable fastening member. The tool body has a plurality of pockets disposed circumferentially around the tool body. Each of the cutting inserts is disposed in one of the respective pockets. Each of the clamping studs is attached to one of the respective cutting inserts. The clamping ring is disposed within the tool body. The clamping ring includes a face surface, a seating surface, and a circumferential outer surface extending between the face surface and the seating surface. The seating surface sits against the plurality of clamping studs. The detachable fastening member is disposed in an attached state fixedly attaching the clamping ring to the tool body causing the clamping studs and their respective cutting inserts to be fixedly attached to the tool body.