Abstract: Adjustable feed mechanisms, machining assemblies including the same, and associated methods. An adjustable feed mechanism includes a plurality of cam segments and a cam lifter configured to pivot each cam segment about a corresponding cam pivot point. An adjustable feed mechanism additionally includes a cam follower and a feed output assembly. The cam follower moves along the cam segments sequentially and is pivotally coupled to the feed output assembly. The cam follower pivots through a cam activation angle when moving along a given cam segment to produce the feed output. A machining assembly includes a mount assembly, a rotary element, and an adjustable feed mechanism. A method of utilizing a machining assembly to machine a work piece includes engaging the work piece with a machining assembly, positioning the tool head with respect to the work surface of the work piece, and machining the work surface.

Abstract: A brake disc tool for machining a brake disc blank is provided. The brake disc tool includes a first cutting tool which is arranged to cut a first brake surface of the brake disc blank, a second cutting tool which is arranged to cut a second brake surface of the brake disc blank, a first forming tool for forming the first brake surface, a second forming tool for forming the second brake surface, and at least one infeed device for the infeed of the cutting tools and the forming tools towards one another, such that a brake disc blank arranged between the cutting tools and the forming tools is able to be machined and rolled in each case simultaneously on both of its brake surfaces.

Abstract: An internal milling cutter includes a carrier disk having a centre axis defining an axis of rotation of the milling cutter, a plurality of separated tool holder segments removably mounted at the inner circumference of the carrier disk, and at least one clamp for each tool holder segment mounted either on the carrier disk or on the tool holder segment. Each of the tool holder segments at its inner circumference includes at least one cutting insert seat with a mounting element for a cutting insert or at least one cutting edge. The clamp is located and arranged such that it generates a force in the axial direction pressing the axial contact surface of the tool holder segment onto the axial abutment surface of the carrier disk, and the clamp is mounted movably in a radial direction of the carrier disk between a locking position and a releasing position.

Abstract: A tool body (12) for a shell end mill (10) is described with at least one helical chip guiding groove (24) arranged at the circumference of the tool body (12) for chip dissipation and at least two receptacles (28) for indexable cutting inserts (26) arranged at the chip guiding groove (24). In this case, the receptacles (28) each comprise a base surface having a bore for receiving an indexable cutting insert fastening screw (34) and at least one first abutment surface adjacent to the base surface. The transition between the base surface and the first contact surface is a groove. In addition, a cutting tool is described with such a tool body, wherein a two-sided indexable cutting insert (26) is attached in each receptacle (28).

Abstract: A cutting insert has a cutting edge formed on part of an intersecting ridge line portion of an upper face or a lower face and a side face. The cutting edge includes a major cutting edge, a minor cutting edge, and a connecting cutting edge that connects the major cutting edge and the minor cutting edge. A minor cutting edge flank that is part of the side face and that corresponds to the minor cutting edge includes a first minor cutting edge flank that connects to the minor cutting edge and that has a clearance angle of 0°, and a second minor cutting edge flank that connects to the first minor cutting edge flank and that has a clearance angle of a negative value.

Abstract: A reversible cutting insert for milling including opposing and identically or substantially identically top and bottom surfaces interconnected by a continuous peripheral side surface, with a median plane located between the top and bottom surfaces and intersecting the side surface, and an insert axis perpendicular to the median plane about which the cutting insert is indexable. Each top and bottom surface is limited by a circumferential cutting edge intersecting the side surface, the circumferential cutting edge in a top view having the shape of a truncated equilateral triangle. Each circumferential cutting edge includes three analogous sets of cutting edges exhibiting three-fold rotational symmetry about the insert axis. A first cutting edge portion intersects a first support plane.

Abstract: The invention relates to a drilling tool (50), in particular a dowel hole drill, for the machining of workpieces, in particular workpieces made of wood, plastics, composite materials, comprising a drill shaft (56) with a front surface (60), and to a drill head (58) with at least one cutting edge (66), which is firmly connected, such as soldered, to the drill shaft (56).

Abstract: A method and a device for producing an optical component having at least three monolithically arranged optical functional surfaces and an optical component are disclosed.

Abstract: A cutting edge includes a nose portion, a first cutting edge portion, and a second cutting edge portion. When a boundary between a first inclined portion and a first breaker portion, a boundary between a first step surface and a second breaker portion, a boundary between a second inclined portion and a third breaker portion, and a boundary between a second step surface and a fourth breaker portion are a first position, a second position, a third position, and a fourth position, respectively, the second position is higher than the first position and the fourth position is higher than the third position in a direction perpendicular to the seating surface, and a distance between the first position and the third position is greater than a distance between the second position and the fourth position in a direction parallel to the seating surface.

Abstract: A machine for separative machining of a plate-shaped workpiece by a processing beam. The machine has a first movement unit for moving the workpiece in a first direction, a second movement unit for moving a processing head in a second direction, two workpiece bearing supports for bearing the workpiece, and a parts chute. The two workpiece bearing supports are separated from each other by a gap that extends along the second direction. The parts chute is movable between a first chute position and a second chute position so as to move a cut-free workpiece part that has dropped into the gap, laterally away from the gap. The machine includes a receiving unit movable in the second direction, to receive the cut-free workpiece part at a transfer position and transport the workpiece part to one or more discharging positions of the machine along the second direction.

Abstract: A machine tool, in particular a lathe, including a machine frame having an upper tool carrier support portion, a lower tool carrier support portion and a spindle carrier portion arranged between the upper and lower tool carrier support portions, a spindle carrier, being arranged on or at a height of the spindle carrier portion of the machine frame, supporting a main spindle configured to receive a workpiece W, the main spindle having a horizontally arranged spindle axis, one or more tool carriers, each tool carrier being supported on a tool carrier assembly being arranged on either the upper tool carrier support portion or the lower tool carrier support portion of the machine frame. Wherein a lower side-surface of the lower tool carrier support portion, to which the one or more tool carriers are mountable, is arranged to have an overhanging inclination.

Abstract: A balancing machine drive apparatus for driving rotational movement of a workpiece rotatably mounted about a rotational axis by a looping belt includes a frame at least partially surrounding, transaxially to the rotational axis, a workpiece mounting position and having an opening closable by an arch and through which the mounting position is accessible, the drive apparatus including guide devices on the frame and/or arch to guide the belt such that, when the arch is closed, the belt winds at least partially around a workpiece in the mounting position on a cylindrical circumferential workpiece region, and a drive device for the belt. The arch is held on the frame so as to be movable between open and closed positions. A balancing machine for balancing a workpiece includes a mounting apparatus in order to rotatably mount the workpiece about a rotational axis in a mounting position, and the drive apparatus.

Abstract: A hardware fastener with a movable threaded element suspended within a cavity formed in a body. The movable threaded element has an internal surface with threads for cooperating with a threaded fastener. The movable threaded element is suspended in the cavity by the one or more spring-like members such that an area, A, of reduced stiffness is created in the cavity proximate the movable threaded element, thereby allowing the movable threaded element to move a predetermined distance within the cavity when torque is applied to the threaded fastener. The one or more spring-like members store elastic potential energy to prevent the loss of pretension of the threaded fastener that can be caused by heat or vibration. The invention also eliminates the need for a torque wrench when tightening the threaded fastener to a specified torque value.

Abstract: An orbital lathe for in situ resurfacing a fifth wheel kingpin, having a pin axis, where the orbital lathe includes a support column generally axially aligned with the pin axis of the kingpin, a cutting tool mounted to the support column for rotation about the pin axis and having a first positioning mechanism for moving the cutting tool at least radially relative to the pin axis, a second positioning mechanism for rotating the cutting tool about a centerline axis generally orthogonal to the pin axis, and a third positioning mechanism for moving the cutting tool parallel to the centerline axis, and a drive mechanism for rotating the cutting tool about the pin axis to cause the cutting tool to remove material from the kingpin. The position of the cutting tool in relation to the centerline axis determines a surface roughness of the kingpin. Another embodiment of the orbital lathe and a method are also disclosed.

Abstract: A tool holder for a lathe having a spindle permits improved arrangement of tools on a turret to maximize the allowable workpiece outer diameter for a given tool. A Z-axis feed mechanism moves the spindle and the turret relative to each other in a Z-axis direction along a center axis of the spindle, while an X-axis feed mechanism moves the spindle and the turret relative to each other in an X-axis direction orthogonal to the Z-axis direction. A plurality of tool holders is attached to the turret, each having a tool holding part. At least one of the tool holders holds the tool at a holding position such that, when indexed to a machining position by rotation of the turret, a cutting-edge reference point of the tool is offset with respect to an X-Z plane including a center axis of the turret.

Abstract: A tool for performing work on a workpiece, such as a pipe, includes a mandrel assembly configured to secure to an interior portion of the pipe. The mandrel assembly includes an arm assembly configured to retain a cutting apparatus so as to be positioned at an outside portion of the pipe and to allow the cutting apparatus to revolve around the circumference of the pipe to perform work on the pipe. The mandrel assembly includes a hub and a plurality of jaws that allow it to secure to the interior of the pipe while the arm assembly props the cutting apparatus in a position to facilitate performing work on the pipe around the entire circumference of a section of the pipe. The engagement between the mandrel assembly and the pipe supports the weight of the tool, providing ease of use and improved control for pipe cutting operations.

Abstract: An insert may include a base member and a resin layer located on the base member. The base member may include a first surface, a second surface, and a cutting edge. The first surface includes a rake surface region. The second surface may be adjacent to the first surface and includes a flank surface region. The cutting edge may be located in at least a part of a ridge line at which the first surface intersects with the second surface. The resin layer may not be located on the second surface but may be located on the first surface.

Abstract: A turning insert includes a top surface, an opposite bottom surface, a side surface connecting the top and bottom surfaces, and a cutting edge formed at an intersection between the top surface and the side surface. The cutting edge including a corner cutting edge, a first cutting edge, and a second cutting edge. The top surface having a first surface in the form of a depression, which borders at least a major portion of the corner cutting edge. The first and the second cutting edges subtending an angle ? which is 75-85°. At least a part of the corner cutting edge is concave in a front view.

Abstract: A rotatable bit cartridge that can be inserted and removed from permanently mounted cutter bodies, bit holders, and/or picks and are used until replacement of the cutter body, bit holder, and/or pick is required. The rotatable bit cartridge may include a forward end with a brazed diamond coated, layered, and/or diamond table bit tip insert or a brazed tungsten carbide bit tip insert. The rotatable bit includes a body that includes a generally cylindrical and/or a tapered first bore extending axially inwardly from a forward end of the body and a bit tip insert comprising a tip and a base subjacent the tip, a portion of the base adjacent a distal end of the bit tip insert disposed within the first bore of the body.

Abstract: In one aspect, a pipe machining system is provided and includes a positioning apparatus, a pipe machining apparatus, and an adjustment member coupled to the positioning apparatus and a pipe machining apparatus. The adjustment member is configured to move the pipe machining apparatus relative to the positioning apparatus. In one aspect, the pipe machining system also includes a position tracking apparatus configured to identify a position of the pipe machining apparatus relative to a pipe on which the system is mounted.