Abstract: A de-taping machine for removing a tape around a lens-mold-assembly. The machine including a lens-mold-assembly-rotation mechanism for holding and rotating the lens-mold-assembly and a tape gripping mechanism. The tape gripping mechanism including a first jaw having a clamping surface; a second jaw movable towards the first jaw for clamping a free end of the tape; a proximity sensing arrangement to generate a first detection signal when the free end of the tape is at a pre-determined distance from the first jaw; and a contact sensing arrangement to generate a second detection signal when the tape is in contact with the first jaw. A rotational speed of the lens-mold-assembly-rotation may be varied based on the first detection signal. Further, the lens-mold-assembly-rotation mechanism may be stop and the tape gripping mechanism may move the second jaw for clamping based on the second detection signal. A corresponding method for tape removal.

Abstract: A detector assembly is provided that includes a semiconductor detector, a collimator, and a processing unit. The semiconductor detector has a first surface and a second surface opposed to each other. The first surface includes pixelated anodes, and the second surface includes a cathode electrode. The collimator includes openings defined by septa. The collimator defines a pitch D between adjacent septa, with the septa defining a septa length L. A ratio of L/D is less than 14. The processing unit is configured to identify detected events within virtual sub-pixels distributed along a length and width of the semiconductor detector. Each pixel comprises a plurality of corresponding virtual sub-pixels, and absorbed photons are counted as events in a corresponding virtual sub-pixel.

Abstract: A machine for cutting tubes is provided including a support table, at least two tube rests protruding from the table and arranged at a distance from one another, and a separating device arranged therebetween. The support table has a substantially flat tube-supporting surface, and the separating device has a cutting knife and a tube feed which can move parallel to the separating plane and has two thrust pieces arranged on both sides of the separating plane, each having a tube contact surface. At least one of the thrust pieces has a thrust piece attachment adjustably attached to a carrier and having tube contact surfaces.

Abstract: Provided is a method for manufacturing vehicle parts having ultra-high strength of 500 Mpa or more by using hot stamping. The method includes: forming a heated blank in a press forming apparatus; and taking out the formed blank from the press forming apparatus and consecutively cutting the blank with a trimming die. A blank temperature at the time of trimming may be 150° C. to 330° C.

Abstract: An image capturing apparatus comprising: a light source, for transmitting incident light to an objective without utilizing any medium besides air, such that the light emits from the objective to generate passing-through light; and a sensor, for capturing an image of the objective according to the passing-through light.

Abstract: A collimator (100) for collimating radiation includes collimator material (150) and at least one collimator hole (110) defined by the surrounding collimator material (150). The collimator hole (110) defines an aperture (112) and a bottom surface (132) through which radiation can leave the collimator (100). The volume of the collimator hole between the aperture (112) and the entrance opening and/or exit opening is shaped such that there is at least one cross-section of the hole between the aperture (112) and the entrance opening and/or exit opening, the cross-section being taken parallel with the aperture, such that the shape of the cross-section of the hole cannot be obtained through an affine transform of the shape of the aperture.

Abstract: The invention relates a method for reducing the eccentricity of the inner and outer surface (7, 9) of a hollow workpiece (i), for example a hollow shaft, rotatably clamped in machine tool (2), in which in one clamping a plurality of measurement data depending on the contour of the inner surface (7) of the hollow workpiece (i) are recorded, for example with the aid of ultrasound, using the recorded measurement data a desired surface (13) is calculated for at least a part of the outer surface (9), which has a reduced eccentricity with respect to the inner surface (7) and in a further step the rotating workpiece (i) is at least partially machined at the outer surface (9) thereof according to the desired surface (13).

Abstract: A pipe cutting tool having: a plurality of rollers; a clamping member moveable between an open position in which a pipe is insertable between the plurality of rollers and a clamping position in which the pipe is secured between the rollers; a cutting apparatus having first, second, and third cutting members configured to optionally sequentially engage the pipe when positioned between the plurality of rollers; a drive motor drivingly connected to at least one of the rollers; and an actuator operatively connected to the drive motor.

Abstract: A fabric cutting system and/or method can include a mandrel having a body and first and second legs, a chuck, the chuck configured to receive either one of the legs or body to rotatingly support the mandrel. The mandrel can be rotated and the fabric mounted on the mandrel can be cut about the leg at a location beyond the end of the other leg. One of the legs can include a leg extension removable from a leg base that when removed allows the other leg to be cut beyond the end of the leg base. The fabric can be cut with a cutting laser, which may be a multi-axis laser, and/or have low power.

Abstract: In embodiments of the present invention improved capabilities are described for a paper roll resizing system. The paper roll resizing system may include a shafted roll stand that suspends a roll of paper mounted horizontally, wherein the shafted roll stand is fixed to a machine housing and is adapted to spin the roll of paper. Alternatively, the roll stand suspends the roll of paper mounted horizontally from two chucks on opposite ends of the roll. The system further includes a cutting tool movably mounted to the roll stand, wherein the cutting tool comprises at least one of a milling head, a planing head, a circular saw, and a laser cutting tool. A controller (PLC) may adjust the position of the cutting tool with respect to the roll of paper held by the roll stand.

Abstract: Pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a tool support adapted to both part or completely cut a pipe into multiple portions, and machine a groove in an exterior surface of the pipe. In another aspect, the apparatus has a low radial clearance such that the tool support does not project a significant distance beyond a pipe. In a further aspect, a method of parting and machining a groove in a pipe with a single pipe machining apparatus is provided.

Abstract: Pipe machining apparatuses, tool supports, and methods of operating pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier coupled to and movable relative to the frame, and a tool support coupled to and movable with the tool carrier relative to the frame. The tool support is adapted to support a tool and move the tool in a first direction toward a pipe at a first increment and move the tool in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.

Abstract: In one aspect, the present invention provides an intraocular lens (IOL) that includes an optic comprising an anterior surface, a posterior surface, and a plurality of diffractive zones disposed on one of those surfaces. The surface having the diffractive zones has a profile characterized by a combination of aspheric and toric components.

Abstract: The cutting-edge position detecting method includes the steps of: under a condition in which the cutting edge of the tool is positioned in an image that is taken by a camera, performing first sampling scanning operations for the image in a predetermined scanning direction at predetermined first intervals, and recognizing points on an upper edge line of the cutting edge of the tool and points on a lower edge line thereof, based on brightness changing points upon the first scanning operations; connecting the recognized points on the respective two edge lines, so as to obtain two first-level approximate linear lines by a least-squares method; performing second sampling scanning operations for the respective two first-level approximate linear lines in directions perpendicular thereto at predetermined second intervals, and newly recognizing points on the upper edge line of the cutting edge of the tool and points on the lower edge line thereof, based on brightness changing points upon the second scanning operations

Abstract: A reporting system, employing a microprocessor, tracks the operation of an on-vehicle brake lathe and provides records of the resurfacing operations performed by the lathe. Identification of the vehicle and wheel position of a brake disk to be resurfaced are inputted using an operator interface, and stored in a temporary memory. When tool bits of the lathe are positioned to set a depth of cut, a thickness monitor indicates the resulting thickness for the brake disk, which is compared to a minimum thickness specification for the inputted vehicle and wheel position to determine whether the disk can be resurfaced to meet the specification. If so, a cutting operation evaluator monitors a continuity checker that is responsive to contact of the tool bits and the disk to determine when the resurfacing operation is complete, at which time the collected data can be reported.

Abstract: The present invention relates to a drug delivery device (6) comprising a dose button (1). Furthermore it relates to a method for manufacturing a dose button (1) by using a cutting-off process. The aim of the present invention is to minimize the risk of using a drug delivery device (6) containing a wrong drug. By means of tactile features, a drug delivery device (6) is distinguishable from another drug delivery device (6) containing another type of drug. This tactile feature is manufactured by using a dose button (1) out of metal which is milled or lathed.

Abstract: A stationary frame is positioned in surrounding relation with the surface of a polyethylene conduit to be prepared for scraping preliminary to performing electrofusion on the conduit by a keyhole operation in an excavated underground location. A scraper tool is mounted on the frame in a fixed longitudinal position to rotate around the surface of the conduit. A cutting blade of the scraping tool extends longitudinally a preselected length on the conduit into contact with the surface of the conduit. Rotation of the scraper tool carries the cutting blade completely around the surface of the conduit to remove a uniform layer of material from the surface of the conduit. Any out of roundness existing in the conduit is removed before the scraping operation is commenced. Uniform compression is applied by split clamps surrounding the conduit. Compression of the clamps restores the conduit to a concentric configuration preliminary to the electrofusion operation.

Abstract: A tool for cutting PET bottles and the like into ribbons. The tool includes a toolhead having an opening, a cutting blade housed inside the opening and a slot open above and extending perpendicular to the plane of the blade, downwards through the toolhead a short distance past the blade. The blade has a sharp edge across the slot. The slot receives the edge of the bottle obtained by cutting off the bottle bottom or the funnel and spout thereof. The edge is inserted in the slot and the bottle turned so that the blade cuts through the bottle following a spiral path and producing a ribbon of PET material at an outlet side of the slot.

Abstract: A rotary milling head removing all but a shell of a boiler tube stub and a plug to punch out from the boiler drum the remaining boiler tube stub.

Abstract: A method for cutting an industrial-size roll of paper or other sheet material into two or more rolls is disclosed. The method enables sections to be cut from the roll, without first having to remove a previously cut section from the roll. The roll is supported on two parallel rollers. A circular saw is mounted in a saw frame that travels along a carriage and positions the saw blade at any desired cutting position on the roll. The saw blade has a radius large enough to cut through such a roll in a single cut, leaving press-ready rolls that require no finish-trimming on the ends.

Abstract: The invention relates to a method and an apparatus for cutting a sleeve to a predetermined length. The sleeve is first moved the direction of the longitudinal axis through a distance corresponding to the required cutting length, a rotating saw blade is driven through the outer surface of the sleeve but not through the inner surface, the sleeve is rotated through a first revolution whereupon the direction of rotation of the sleeve is set to be the same as the direction of rotation of the blade, the blade is driven through the inner surface of the sleeve and the sleeve is rotated until the cut extends around the sleeve.

Abstract: A cutting head assembly holds a pair of tool bits for an on-vehicle brake disk lathe having a platform. The cutting head assembly has a platform key fixed to the platform and extending parallel to a brake disk axis of rotation. The cutting head assembly also has a plate having a plate keyway that slidably engages the platform key. Tool bit arms are adjustably mounted to the plate and support the tool bits. A locking structure connected to the plate locks the platform key with respect to the plate keyway, and the interaction of the locking structure with the plate and the platform key creates a compressive load between the plate and the platform as the platform key is locked with respect to the plate keyway.

Abstract: Disclosed are a method for cutting a pipe which allows precise straight cutting and beveling of a pipe, which can be used irrespective of the size of a pipe, and which can completely remove chips generated by cutting to reduce pollution of the pipe, and an apparatus for performing the same. The apparatus includes a housing; guide bodies separately positioned on the housing to be selectively moved toward or away from each other; guide rolls installed on the guide bodies so that a pipe to be cut can be placed thereon; a rotation device for manually or automatically rotating the guide rolls to rotate the pipe; and a cutting device installed on a side surface of the housing, and having a cutting handle which is pivoted around a hinge to cut a lower portion of the pipe and a cutter which is installed on a distal end of the cutting handle.

Abstract: Systems and methods for trimming a roll of sheet material are provided. A representative system incorporates a core anchor that is configured to be inserted into the hollow core of a roll of sheet material and removably secured therein. The system also includes a cutting tool rotatably attached to the core anchor. During trimming of a roll of sheet material to which the core anchor is secured, the core anchor rotates with the roll as the roll is rotated.

Abstract: A method and apparatus for cutting moils from necks of molded plastic containers and installing spouts in the necks are disclosed. The apparatus includes a pick and place mechanism that rotates along an arcuate path transporting the containers between a cutting station, a facing station and an assembly station positioned along the path. An oven located above the assembly station heats spouts which are coated with a hot-melt adhesive. The heated spouts are supplied to the assembly station under gravity feed. The method includes cutting the moils from the container necks at the cutting station, finishing the neck by burnishing and reaming at the facing station, heating the spouts in the oven, orienting the spouts and inserting them into the finished necks of the containers at the assembly station.

Abstract: A method of fabricating a spherical cavitation. Depending upon the chamber's composition and wall thickness, chambers fabricated with the disclosed techniques can be used with either low or high pressure systems. During chamber fabrication, initially two spherical half portions are fabricated and then the two half portions are joined together to form the desired cavitation chamber. During the fabrication of each chamber half, the interior spherical surface is completed first and then the outer spherical surface. Prior to joining the two spherical cavitation chamber halves, the surfaces to be mated are finished, preferably to a surface flatness of at least 0.01 inches. Electron beam welding is used to join the chamber halves together. Preferably the electron beam welding operation is performed under vacuum conditions. During electron beam welding, the two chamber halves are aligned and held together while the electron beam forms a weld along the chamber seam.

Abstract: The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounted to a side surface of one ring gear and engage a sun gear assembled to the other ring gear. When the ring gears rotate at the same speed, the pinions and blades do not revolve around their respective axes, and when one ring gear rotates at a speed different from the other ring gear, the pinions and blades revolve about their respective axes, intercepting and cutting a tube passing through an axial passage through the ring gears.

Abstract: A dynamic spindle adjustment permitting an adjustment movement for the compensation of a wobble of the body held by the work spindle is provided on the spindle bearing of a machine tool. The regulation is designed at least dynamically enough for the regulation to permit a reliable tracking of the rotating work spindle. As a result of this, one or more spindles can be moved relative to a stationary machine in such a manner that the path of a body held on the work spindle represents an ideal rotation about the desired body axis, that is, the axis of symmetry. The compensation motion can be achieved by energizing appropriate actuators of the bearing devices with sinusoidal and cosinusoidal adjustment signals, which are superimposed to produce a circular motion of the affected bearing device. This circular motion compensates for orbital motions of the misaligned body (7) held on the work spindle.

Abstract: Apparatus for cutting an industrial-size roll of paper or other sheet material into two or more rolls. The apparatus includes a circular saw with a radius large enough to cut through such a roll in a single cut, leaving press-ready rolls that require no finish-trimming on the ends. The saw blade is mounted in a saw frame that travels along a carriage and positions the blade at any desired cutting position on the roll. The apparatus includes a support bed and load-bearing arms for supporting the weight of a large roll and keeping it in position during the cutting operation. Load/unload tables and a system of kicking cylinders guide the roll onto and off of the support bed. The saw frame is a tower that positions the saw blade above the roll at the desired cutting position, or a floor frame that positions the saw along side or beneath the roll at the desired cutting position. The apparatus further includes a finishing station for sanding the ends of cut rolls.

Abstract: A process for machining in situ the peripheral surface (1100) of a part rotating around an xx? axis (1), wherein a machining device is used comprising at least one plate (12) fixed to a frame and a tool holder (11) provided with a cutting tool (300) mounted on the said plate such that it can move along a YY? direction (3) which is substantially perpendicular to the xx? axis of rotation (1). The tool holder is installed on the plate (12) so that it can pivot around an axis oriented along a zz? direction represented by the point (4) which is substantially perpendicular to the YY? direction and to the xx? axis of rotation. By combining a rotation of the tool holder around the xx? axis and a translation of the center of rotation around the ZZ? axis (4) along the in-feed direction YY?, the active end of the cutting tool (300) is moved in a plane perpendicular to the ZZ? axis (4). The device may also move along the third XX? axis.

Abstract: A tool bit suited to use in a machining apparatus for lathing of photoreceptor blanks includes a cutting portion which defines a plurality of projections. During lathing, the projections extend into the blank successively greater distances. When the blank is rotated, each projection cuts a successively radially inward portion of the workpiece. The resulting swarf is thinner and generally easier to handle than for a tool with a single cutting edge, thereby enabling vacuum suction of the swarf.

Abstract: A method and apparatus for cutting moils from necks of molded plastic containers and installing spouts in the necks are disclosed. The apparatus includes a pick and place mechanism that rotates along an arcuate path transporting the containers between a cutting station, a facing station and an assembly station positioned along the path. An oven located above the assembly station heats spouts which are coated with a hot-melt adhesive. The heated spouts are supplied to the assembly station under gravity feed. The method includes cutting the moils from the container necks at the cutting station, finishing the neck by burnishing and reaming at the facing station, heating the spouts in the oven, orienting the spouts and inserting them into the finished necks of the containers at the assembly station.

Abstract: The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis. The first cutting edge forms a first machined pattern of peaks and valleys on a surface of the article, and the second cutting edge removes at least a portion of the peaks to form roughened fracture surfaces in a second machined pattern defining an arrangement of grooves, corresponding to the valleys, separated by lands, corresponding to the roughened fracture surfaces. The disclosure also provides cutting tools useful in practicing the surface roughening methods. The disclosure further describes cylindrical articles having interior or exterior surfaces roughened using the methods. The methods, cutting tools and articles have applications including fabrication of cylinder blocks for internal combustion engines.

Abstract: When a tube is to be cut into a plurality of sections, a tube feed assembly is operated to rotate the tube and to move the tube along its longitudinal central axis into a work station. The tube and a mandrel move into a telescopic relationship at the work station. The tube feed assembly presses an end of the tube against a stop surface on a stripper at the work station. A plurality of knives are moved into engagement with the tube to cut the tube. Relative movement between the stripper and mandrel separates the sections of the tube from the mandrel. A scrap end section of the tube is directed to a scrap receiving location. Other sections of the tube are directed to a product receiving location.

Abstract: The present invention provides a method of moving a cutter blade along a circumferential edge of a semiconductor wafer, thereby cutting a protective tape joined to a surface of the semiconductor wafer with a pattern formed thereon for protecting the pattern before the semiconductor is processed. The cutter blade moves in the state where a side face thereof is brought into contact with the circumferential edge of the semiconductor wafer, thereby cutting the protective tape joined to the surface of the semiconductor wafer.

Abstract: The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounted to a side surface of one ring gear and engage a sun gear assembled to the other ring gear. When the ring gears rotate at the same speed, the pinions and blades do not revolve around their respective axes, and when one ring gear rotates at a speed different from the other ring gear, the pinions and blades revolve about their respective axes, intercepting and cutting a tube passing through an axial passage through the ring gears.

Abstract: Method and apparatus for trimming the neck of plastic bottles includes means for rapidly rotating a cutting blade around the neck being trimmed while progressively moving the cutting blade through the thickness of the neck. During the cutting, a flat surface of the cutting blade rubs against the newly cut upper neck or finish surface to provide a polished surface therefor.

Abstract: A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. The band includes portions adapted to engage an annular bead on the container. The bridges are formed by using a primary knife having an interrupted cutting edge to produce a circumferential score in the side wall of the closure leaving spaced connectors or bridges followed by using a secondary knife having a continuous cutting edge to provide a continuous external score line and an accurately dimensional radial thickness of the bridges. In a preferred method and apparatus, the closures engage the successive primary and secondary knives and are moved such that the closures roll relative to the knives.

Abstract: An on-car disc brake lathe system for resurfacing a brake disc of a vehicle brake assembly includes a lathe body with a driving motor, a cutting head operably attached to the lathe body, and a drive shaft. The system also includes an alignment system having an electronic controller, input and output adaptors configured to rotate with the drive shaft, one or more adjustment discs, and an adjustment mechanism. The adjustment disc is positioned between the input adaptor and the output adaptor, and an axial alignment of the input adaptor relative to the output adaptor may be varied based on a rotational orientation of the adjustment disc. The adjustment mechanism is configured to change the rotational orientation of the adjustment disc in response to commands from the electronic controller.

Abstract: A blow molded container (10) having a trimmed nonround opening (12) is blow molded from a preform (36) and then positioned by a positioner (50) of a nonround trimmer (16) that includes a rotary driven arm assembly (56) having a knife holder (60). A guide (66) guides the knife holder (60) in a nonround path to perform the trimming.

Abstract: An NC lathe performs various processing at the same time to a plurality of works. The NC lathe includes a first spindle and a second spindle, and a tool rest having tools for processing works. The tool rest is freely movable in the direction of Z1-axis and X1-axis. The second spindle is freely movable in the direction of X2-axis and Z2-axis. An NC unit controls the movement in the direction of the X1-axis and the Z1-axis of the tool rest, and controls the movement in the direction of the X2-axis and the Z2-axis of the second headstock. The NC unit superposes the movement in the direction of the X2-axis on the movement of the X1-axis of the tool rest. Furthermore, the movement of the Z2-axis is superposed on the movement in the direction of the Z1-axis of the tool rest.

Abstract: A process for cutting machining of rotating rotationally symmetrical workpieces with a defined cutting edge, wherein the resulting rotationally symmetrical surface has either no twist or a twist which is only insignificant in terms of transport effect and abrasive action and/or when machining the hardened workpiece surfaces a particularly high material removal rate can be achieved, wherein a cutting edge which is askew with respect to the axis of rotation of the workpiece is guided in contacting relationship along the rotating workpiece in a linear feed movement transversely with respect to the axis of rotation, wherein the machining parameters, in particular the broaching feed and the inclined positioning of the cutting edge are so selected that the twist occurring at the machined surface becomes a minimum in respect of twist pitch and/or twist depth and in particular the twist depth becomes a minimum.

Abstract: A rotational machining and quality assurance method for thermally extruded linings of turbomachinery are provided. First, a harder top coating is removed by turning, then the lining is finish-turned to size. During the finish-turning, defined turning parameters are maintained and a cutting force characteristic is quantitatively detected and stored. The force characteristic is compared with predetermined limit values, and, depending on the result of the comparison, the lining is approved for use or is produced again.

Abstract: There is provided a numerically controlled lathe capable of simultaneously performing various kinds of machining to a plurality of workpieces. An NC lathe according to the present invention has a first main shaft 121 and a second main shaft, a first tool rest 160 to which a tool T1 and/or a tool T2 used to machine workpieces W1 and W2 grasped by these main shafts are attached, and a second tool rest 180 to which a tool T3 and/or a tool T4 used to machine the workpieces W1 and W2 are attached. The first tool rest 160, the second tool rest 180 and the second head stock 130 can move in the direction of a Z axis and the direction of an X axis without restraint. A numerical control device 191 controls movement of the first tool rest 160, the second tool rest 180 and the second head stock 130 in the direction of the X axis and movement of the same in the direction of the Z axis.

Abstract: Method and apparatus for trimming the neck of plastic bottles includes means for rapidly rotating a cutting blade around the neck being trimmed while progressively moving the cutting blade through the thickness of the neck. During the cutting, a flat surface of the cutting blade rubs against the newly cut upper neck or finish surface to provide a polished surface therefor.

Abstract: When a bonded substrate stack prepared by bonding a first substrate in which a single-crystal Si layer is formed on a porous layer, and an insulating layer is formed on the single-crystal Si layer to a second substrate is to be separated at the porous layer, serrate defects at the peripheral portion of the separated substrates are prevented. A fluid is ejected from an ejection nozzle (112) and injected into the porous layer of a bonded substrate stack (30) while rotating the bonded substrate stack (30) about an axis (C) in a direction (R), thereby separating the bonded substrate stack (30) into two substrates at the porous layer. When the peripheral portion of the bonded substrate stack (30) is to be separated, the ejection nozzle (112) is located within a range (B).

Abstract: An improved hydrodynamic bearing design and method for fabricating a hydrodynamic bearing is disclosed, which incorporates a filling groove so that oil or other lubricating fluid can be efficiently inserted into the bearing gap without risking the loss of fluid during operation; the method provides for fabricating the hydrodynamic bearing and its oil filling groove so that the efficiency of the manufacturing process is not compromised. The same grooving tool which forms the hydrodynamic bearing is scraped across an abutment on the sleeve which supports the counterplate to form a shallow filling groove under the counterplate.

Abstract: A method and apparatus for cutting rings from ring forgings of titanium or related materials is described. The ring forging is gripped and rotated about its centerline in a centering chuck. A tool holder is mounted parallel to and spaced from the centerline of the forging. The displacement of the tool holder is controlled both along and perpendicular to the centerline. First and second cutter bars having first and second cutter bits are mounted to the tool holder. The first cutter bar is mounted so that it may be moved along a diameter of the ring forging with the second cutter bar moving along a line parallel to, coplanar with and spaced from this diameter. The second cutter bit is wider than the first cutter bit. The second cutter bit widens the cut made by the first cutter bit, thereby providing chip clearance and cooling for the ring being cut.

Abstract: A device aids the setter of a cutter head for cutting, e.g., milling or hobbing, of spiral bevel gears to align all rod-shaped blades with their tip cutting edges to an axial height which is as uniform as possible and to move them with their profile cutting edges to a correct radial position in the cutter head so that uniform chip removal can take place. The device has a stable arm which can be moved numerically controlled axially and radially to the cutter head, with positions which are continuously measured and with which each individual blade can be automatically pushed into its chamber in the cutter head. A probe which is connected to the arm measures the axial height of the tip cutting edge of each blade before, during and shortly after each blade is pushed in.

Abstract: A process for cutting machining of rotating rotationally symmetrical workpieces with a defined cutting edge, wherein the resulting rotationally symmetrical surface has either no twist or a twist which is only insignificant in terms of transport effect and abrasive action and/or when machining the hardened workpiece surfaces a particularly high material removal rate can be achieved, wherein a cutting edge which is askew with respect to the axis of rotation of the workpiece is guided in contacting relationship along the rotating workpiece in a linear feed movement transversely with respect to the axis of rotation, wherein the machining parameters, in particular the broaching feed and the inclined positioning of the cutting edge are so selected that the twist occurring at the machined surface becomes a minimum in respect of twist pitch and/or twist depth and in particular the twist depth becomes a minimum.