Abstract: A dampening apparatus for dampening vibrations of a workpiece during machining, the dampening apparatus having a dampener, a support to support and place the dampener in abutting vibration absorbing contact with the workpiece, and a dampener fixture for holding the dampener fixed relative to the workpiece. A pressure adjusting apparatus to adjust contact pressure between the dampener and the workpiece is preferably included. The dampener may further include a number of dampening rods supported by the plate at first ends of the rods and which in turn support dampening elements at distal second ends of the rods. The dampening elements may be lugs made of a resilient material such as rubber and the lugs may have flat surfaces for being placed in abutting vibration absorbing contact with the workpiece. The invention also includes a method of machining a thin web of a workpiece having an annular inner hub connected to a concentric annular outer rim by the thin web using the dampener.

Abstract: To provide a loading cam device which is capable of ensuring a necessary accuracy, improving the efficiency of the formation of a cam face, and reducing the manufacturing cost. A cam plate is fixedly secured to a chuck rotationally driven by a main shaft. A cutter is axially placed on one surface of the cam plate. A holder holding the cutter is axially displaced in synchronism with the rotation of the chuck to make an irregularity conforming with the cross-sectional configuration of the cam face. In addition, a header is displaced in the diametrical directions of the chuck to make an irregularity throughout.

Abstract: A technique for aligning a wheelset using a wheelset truing machine is disclosed. Using the technique, the wheelset may be aligned by roughly aligning the wheelset truing machine, placing each wheel of the wheelset on at least one roller, determining the distance of tread points on each wheel on the rollers relative to the center of revolution of each wheel by forming measurements and calculations, and coinciding the center of revolution of each wheel with the corresponding setpoint of the machine center. The measurement is taken of the periphery and of the concentricity error and a distance of the tread points determined by the triangulation principle.

Abstract: Metal inking rolls, particularly for flexographic printing, having: A roll structure composed of an ammonia hardenable steel, in particular stainless steel, the selection of a roll wherein the minimum thickness of the wall, if tubular, is a direct function of the diameter and an inverse function of the length of the roll, so that, when the roll is supported at its ends and stressed in the middle, on a surface relatively distributed, it may be permanently distorted in the axial direction but without distorting its cross-section; a post-engraving ionic nitriding treatment to increase the surface hardness of the screen to at least 60 HRC and a final straightening step, to reduce the screen eccentricity at least 0.02 mm.

Abstract: A process for the surface treatment of elastomers forming the outermost layer of a coated rotationally symmetrical body, the outer layer having a hardness of from 10 Shore A to 100 Shore D, wherein a high cycle motor spindle bearing a high-speed cutter head with cutting tips is brought into contact with the work material.

Abstract: A machine tool is provided having a spindle mounted for movement in a direction parallel to the spindle axis, the Z direction, and a direction perpendicular to the spindle axis, the X direction. The machine tool includes a machine bed and has means mounted to the machine bed for supporting at least one tool. At least one spindle is rotatably supported on the machine bed and includes a chuck for supporting a workpiece. The machine tool includes means mounting the spindle to the machine bed for movement in the Z direction and for independent movement in the X direction. Accordingly, the workpiece supporting means may be moved proximate to the tool supporting means and the workpiece may be engaged by a tool. The machine tool may further include feeder means for feeding bar stock to the workpiece supporting means so that the bar stock may be engaged by a tool. The machine tool may also include workpiece transfer means for facilitating the transfer of workpieces to and from the workpiece supporting means.

Abstract: An alignment device to be mounted on an on-vehicle brake lathe to provide quick and easy lateral run out compensation. A concentric bottom plate, ring member and top plate are mounted onto the output shaft of the lathe prior to attaching the lathe to an adapter mounted on a vehicle hub/brake assembly. Two spring-loaded screws extend through the bottom plate, ring member and top plate and into complementary recesses in the mounting face of the lathe. The ring member includes an adjustment screw which, when engaged, and in combination with the tension on the center shaft of the lathe output shaft, will alter the planar alignment of the top plate and thus compensate for the lateral run out of the hub/brake assembly and allow for the precision machining of the brake rotor surface with the cutting tips of the lathe.

Abstract: A toolholder for removing material from a workpiece wherein the workpiece and toolholder are rotatable with respect to one another. The toolholder includes a body having a plurality of pockets. A roughing insert is carried in one of the pockets of the body. The roughing insert presents a roughing edge. The roughing insert is of a first grade. A finishing insert is carried in another of the pockets of the body. The finishing insert presents a finishing edge. The finishing insert is of a grade different than that of the roughing insert.

Abstract: Machining of internal and external grooves in aluminum based alloys is performed through the use of a sharp edge physical vapor deposition coated cemented carbide cutting tool.

Abstract: A controlled atmosphere machining process which involves a work station for machining a workpiece with an inert gas in an enclosed environment which will not support combustion. The process further includes a vacuum system which removes particulate matter occurring during the machining process and transports the matter to a collecting tank. The inert fluid is recycled through a filter and cooling system and continues to be drawn by the vacuum system into the enclosed machining area of each work station.

Abstract: A temperature change of a machine tool which is influenced by a heat generating source is detected by a temperature sensor. A temperature change having substantially the same time constant as a time constant of a thermal distortion of the machine tool is calculated by using the detected temperature change. A machining error is corrected on the basis of the thermal distortion corresponding to the calculated temperature change. According to a method and an apparatus for compensating for the thermal distortion in the machine tool, it is possible to perform the compensation relative to the thermal distortion with high precision. The invention is applied to a machine tool such as a machining center and an NC lathe.

Abstract: A squaring machine has an elongate generally cylindrical housing with an axially mounted motor at one end of the housing which rotates a shaft extending through the axis of the housing. The shaft is longitudinally moveable within the housing, and a non-rotatable inner sleeve is fitted around the shaft and is fixed for longitudinal movement with the shaft. The housing has a feed ring which is axially slidable but non-rotatably fixed around the tubular section, and a pin extends through a slot in the housing and the pin is connected to both the feed ring and the inner sleeve such that the feed ring, the inner sleeve, and the shaft move longitudinally in unison with respect to the housing. Rotation of a feed nut, which threadably engages the feed ring, causes axial movement of the feed ring along the tubular portion of the housing, and simultaneous axial movement of the shaft.

Abstract: A method for manufacturing a flanged shaft from a forging having a shaft and a flange having an inboard side and an outboard side using a first lathe and a second lathe. The method comprises chucking the forging in the first lathe such that at least the outboard side of the forging may be worked on and finishing at least the outboard side of the flange. The forging is then removed from the first lathe and chucked in a second lathe while referencing the forging off the outboard side of the flange such that the remainder of the forging may be worked on. The remainder of the forging is then finished into a flanged shaft.

Abstract: In order to improve the wear characteristics of tools with diamond cutting edges, it is proposed to coat the diamond body with a 0.5 to 6 .mu.m thick layer of at least one oxide of the metals zirconium and/or yttrium and/or magnesium and/or titanium and/or aluminum, preferably aluminum oxide. The coating is deposited from the gas phase at gas-phase temperatures up to 800.degree. C. Preferably the pulse-plasma CVD process is used for the coating. The diamond tools so coated are particularly suited for chip-forming machining of carbon-affinitive materials, such as iron-containing materials or steel.

Abstract: A method for producing discontinuous chips during the machining of a work piece by a cutting tool is provided. The method includes the steps of engaging the cutting tool into the workpiece to produce a continuous chip and directing a stream of cryogen toward the continuous chip, so as to rapidly cool the continuous chip and fracture the continuous chip into the discontinuous chips.

Abstract: A process and device for machining bars, tubes or tube blanks, especially strand-cast copper blanks, in which the work piece to be machined--supported in the cross-plane of the metal-cutting device is cut on its periphery and along its length, while the die and the work piece are continually moved relative to one another in the longitudinal direction of the work piece. At least one die rotates concentrically around the work piece, which is held in a rotation-proof manner, on a plane inclined toward the longitudinal axis of the work piece and with its cutters simultaneously machines two areas of the work piece surface that are located opposite to one another.

Abstract: An electronic control device for individual drives of machining machines, particularly of machine tools with a plurality of drive apparatuses, in which, according to the counting state of a pulse counter (35), path information elements associated with the latter are extracted simultaneously by a computer unit (37) from memories (41, 42, 43) associated with many drive apparatuses (18, 19, 20) and are converted into control values necessary for machining, which control values are then fed as set values to control circuits (30, 31, 32) for the drive apparatuses (18, 19, 20). The electronic control device (37) is supplied with a low counting pulse frequency (f.sub.z) and can therefore process path and speed information values from a memory unit (36) for very many drives (18, 19, 20) simultaneously.

Abstract: To prepare an essentially toroidal surface (7) on a workpiece (1) by machining, rotation of the workpiece around a first axis of rotation (3) and at the same time a rotation of the cutting tool (8) used for this machining around a second axis of rotation (10) are provided, wherein the second axis of rotation passes through the predetermined center (4) of the circular surface of the torus, which yields the surface (7) to be machined of the workpiece (7) during the rotation of the workpiece (1) around the first axis of rotation (3).

Abstract: A method for cutting a surface of a base of a photoreceptor for electrophotography is disclosed. The method comprises steps of:(a) supplying an aqueous cutting fluid to the surface of the photoreceptor base;(b) cutting the surface of the photoreceptor base by a cutting tool comprising a single crystal diamond.

Abstract: A fixture for mounting a vehicle wheel upon a lathe. The fixture includes a support structure which carries a plurality of movable arms. The arms extend axially within the wheel rim and through the wheel pilot hole. The arms have jaws formed on their ends. The arms are movable to cause the jaws to clamp the wheel hub against the support structure. Because the arms clamp the wheel hub, the entire outside surface of the wheel rim is exposed for machining, allowing machining of both tire bead seats during the same machining operation.

Abstract: The chuck, the bar which operates it, and the cylinder and piston assembly which moves the bar are axially hollow and form a vertical duct which is open at the top next to the workpiece and which is open at the bottom over a conveyor with a filter and a unit for collecting and pumping the cutting fluid. The chips from the piece are channelled and removed downwards through the said duct by at least one jet of fluid at high pressure, which has a location and direction such that it strikes the chip after its formation without interfering with the normal jet of fluid at low pressure which is applied to the tool. The said jet or jets of fluid at high pressure consist of the same cutting fluid as that which is directed against the tool at low pressure. The chips leaving the lower end of the said duct fall on to the conveyor which removes them and separates them from the cutting fluid which, when suitably filtered, is returned to circulation by low-pressure and high-pressure pumps.

Abstract: An apparatus for locating the center of rotation of a wheelset. The apparatus contains two movable roller assemblies each designed to establish circumferential contact with a wheel at a different location on the wheel periphery, a movable lifting device connected to each such roller assembly, encoders for determining the extent to which each of the movable roller assemblies is moved in a linear direction during rotation of the wheel of the wheelset while in contact with the wheel, and an encoder for determining the extent to which the wheel of such wheelset moves in the x and y axes axis during rotation of the wheel about its centrally mounted axes.

Abstract: A quick stop device for abruptly interrupting the cutting of a workpiece by a cutter is disclosed. The quick stop device employs an outer housing connected to an inner workpiece holder by at least one shear pin. The outer housing includes an appropriate shank designed to be received in the spindle of a machine, such as a machine tool. A cutter, such as a drill bit, is mounted in a stationary position and the workpiece, mounted to the workpiece holder, is rotated during engagement with the cutter. A trigger system includes at least one spring loaded punch disposed for movement into engagement with the workpiece holder to abruptly stop rotation of the workpiece holder. This action shears the shear pin and permits continued rotation of the spindle and outer housing without substantially disturbing the chip root formed during cutting.

Abstract: The method and device are used for cooling the machining zone of a machine tool. According to a method for cooling the machining zone a gaseous cutting to a method for cooling the machining zone a gaseous cutting fluid that has previously been treated with in the field of a corona discharge initiated in an ionizer is fed to the machining zone at a rate not below the cutting speed, a controlled stabilized electric current being used for initiating a corona discharge, the intensity of the electric current is changed in accordance with a change in the rate of flow of the gaseous cutting fluid.

Abstract: A chuck body has an internal cam unit eccentrically mounted within antifriction bearings, and the cam unit includes a workpiece gripper. A radial pin extends through the chuck body into a peripheral slot of the cam unit. When rotating in a first rotary direction, the chuck body and cam unit rotate in unison and a first workpiece diameter may be machined. When the rotation of the chuck body is reversed, inertial forces acting on the cam unit prevent immediate reversal of the cam unit rotation, and the pin moves through the peripheral slot, contacting the opposite end and driving the cam unit in reverse rotation; this relative motion between the chuck body and cam unit causes the workpiece to become offset, displacing the first workpiece axis from the chuck body axis of rotation. Consequently, as the reverse rotation is continued, a second workpiece diameter may be is machined about the chuck axis of rotation; the second diameter will be eccentric to the first diameter.

Abstract: The present invention provides a rapid indexing spindle drive and control apparatus for installation as a retrofit on a cam controlled automatic screw machine to provide the capabilities of variable spindle speed and direction as well as rapid indexing of the spindle in relation to the tool head of the screw machine for stationary tool operations. The apparatus includes a variable speed, low mass servo-motor mounted on the headstock of the machine and connected to the spindle by a 1:1 drive ratio timing belt and pulley system. A cam shaft revolution sensor is mounted adjacent to the screw machine cam shaft and is driven by the cam shaft through a second 1:1 drive ratio timing belt and pulley system. Electronically connected to the servo-motor and the cam shaft revolution sensor is a computer control system which includes a computer and an operator interface unit whereby cam shaft positions and spindle drive commands corresponding to specific cam shaft positions are entered by the machine operator.

Abstract: When a cylindrical single crystal ingot terminating in generally conical parts at the opposite ends thereof is machined with a cylindrical grinder which is adapted to support the ingot in place by fastening the conical parts of the ingot to a spindle side chuck and a tailstock side chuck severally provided with a conical hole and grind and finish the cylindrical part of the ingot while keeping the ingot driven on the spindle side, the ingot is liable to produce idle rotation possibly to the extent of disrupting the grinding work.

Abstract: The present invention relates to a process for the production of collagen foams in the form of continuous tapes, characterized in thata) solved or dispersed collagen is cast into disk molds,b) the collagen solution or dispersion is frozen in the disk mold and subsequently is freeze-driedc) continuous tapes are produced from the freeze-dried disks by mechanical processes. Furthermore, the present invention relates to the use of said tapes so obtained in medicine, cosmetic and hygiene.

Abstract: A process for making metal inking rolls, particularly for flexographic printing, having: A roll structure composed of an ammonia hardenable steel, in particular stainless steel, the selection of a roll wherein the minimum thickness of the wall, if tubular, is a direct function of the diameter and an inverse function of the length of the roll, so that, when the roll is supported at its ends and stressed in the middle, on a surface relatively distributed, it may be permanently distorted in the axial direction but without distorting its cross-section; a post-engraving ionic nitriding treatment to increase the surface hardness of the screen to at least 60 HRC and a final straightening step, to reduce the screen eccentricity at least 0.02 mm.

Abstract: A method of using a camshaft miller for working a workpiece in which a plurality of journals are provided on the workpiece, cams having the same phases are disposed on both sides of each of the respective journals and a ring is disposed at one end of the workpiece, includes providing a cutter having, at a central portion thereof, a central chip for working a ring and other chips disposed on both sides of the central chip for simultaneously working cams having the same phases, working the cams of the same phases of each of the journals simultaneously with the other chips, subsequently with respect to the journals, and working the ring with the central chip. According to this method, the cams and the ring can be worked by a single working machine and the cams of each set thereof having the same phase can be simultaneously worked, thereby improving the productivity.

Abstract: A machining system including a machine tool having a workpiece holder and at least one cutting tool for machining a workpiece retained by the workpiece holder; a control for automatically controlling the machine tool; a material handling mechanism for loading and unloading workpiece material; and a hermetically sealed chamber enclosing the machine tool and the material handling mechanism. Also included in the system is a source of cryogen and a cryogen distribution network for directing cryogen toward the workpiece retained by the workpiece holder.

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 apparatus for use in the generation of ophthalmic products from blanks comprises a mechanism for rotating the blank about an axis of rotation. A cutter tool imparts a desired surface configuration onto the rotating blank. A first moving mechanism moves the cutter tool in a first direction oriented parallel to the axis of rotation of the blank. A second moving mechanism moves the cutter tool in a second direction oriented transverse to the first axis. A digital electronic system controls the angular displacement of the blank with respect to a reference plane containing the blank, and controls the movements of the cutter tool in the first and second directions. The movements of the cutter tool in the first and second directions, and the angular displacement of the blank about the axis of rotation are all controlled independently of one another by the digital electronic system.

Abstract: An improved method for final balancing the brake drum determines the location and length of a constant depth cut along the squealer band which is necessary to correct the imbalance, and using a cutting machine, makes the constant depth cut at the predetermined location and for the predetermined length along the squealer band to produce a final balanced brake drum. Preferably, the cutting machine is a milling machine which produces a plunge type entrance/exit cut. It is a further feature of the invention to provide a feather type entrance/exit cut to reduce the stress concentrations, and produce a cosmetically more appealing final balanced brake drum.

Abstract: A disc brake rotor produced by a machining method includes a friction disc having generally parallel inner and outer machined friction faces adapted to be frictionally engaged by a pair of brake pads of the disc brake assembly. Each of the inner and outer machined friction faces includes a spiral machining groove formed therein. When viewed from their respective faces, the spiral machining grooves are essentially identical to one another. The spiral machining groove formed in one of the inner and outer machined friction faces is operative during braking to produce a first force in one radial direction on one of the pair of brake pads. The spiral machining groove formed in the other one of the inner and outer machined friction faces is operative to produce a second force which is generally equal and in an opposite direction to the first on the other one of the pair of brake pads.

Abstract: A method of treating a substrate for an electrophotographic photosensitive member by a process comprises the steps;a) cutting the surface of the substrate to remove the surface in the desired thickness; andb) bringing the cut surface of the substrate into contact with water having a temperature of from 5.degree. C. to 90.degree. C., having a resistivity of not less than 11 M.OMEGA..multidot.cm at 25.degree. C., containing fine particles with a particle diameter of not smaller than 0.2 .mu.m in a quantity of not more than 10,000 particles per milliliter, containing microorganisms in a total viable cell count of not more than 100 per milliliter and containing an organic matter in a quantity of not more than 10 mg per liter, for at least 10 seconds at a pressure of from 1 kg.multidot.f/cm.sup.2 to 300 kg.multidot.f/cm.sup.2.

Abstract: A ceramic cutting insert for high speed machining of materials is provided having an integral chip control surface thereon.

Abstract: In a two-axis turning machine, the cutting tool unit machines a first diameter of a workpiece portion of barstock extending from a main spindle chuck. A special subspindle chuck rotating in the same direction advances axially, grasps the workpiece as it is cut off from the barstock, and retracts. The barstock is fed through the first chuck for subsequent first operation machining and located against a stop which is independent of the tool slides. The subspindle chuck rotation is reversed, displacing the first-generated workpiece axis from the subspindle axis, and a second diameter, eccentric to the first diameter, is formed by the cutting tool unit in a second operation.

Abstract: A turning machine includes a controller for generating both aspherical and non-symmetrical shape components defining the predetermined shape, and a controller for controlling a spindle and a positionable cutting blade to thereby form a predetermined non-rotationally symmetric shape in a workpiece surface. The apparatus includes a rotatable spindle for rotatably mounting the workpiece about an axis, a spindle encoder for sensing an angular position of the rotating workpiece, the cutting blade, and radial and transverse positioners for relatively positioning the cutting blade and workpiece along respective radial and transverse directions. The controller cooperates with a fast transverse positioner for positioning the cutting blade in predetermined varying transverse positions during a revolution of the workpiece.

Abstract: A polygon mirror is produced using a diamond tool. The diamond tool includes a major cutting edge and an end cutting edge. The major cutting edge is formed straight by a rake face and a side flank, the major cutting edge having a first side and a second side. The end cutting edge is formed straight by the rake face and a front flank, the end cutting edge having a third side. A microscopic cutting edge is arranged between the second side and the third side so that the major cutting edge and the microscopic cutting edge together create a first corner at the second side, and the end cutting edge and the microscopic cutting edge create a second corner at the third side. The rake face is inclined downward from the second corner to the first side. The microscopic cutting edge is between 0.1 mm and 0.4 mm in a direction of the end cutting edge. The microscopic cutting edge at the first corner is swept back by an amount between 0.21 .mu.m and 0.6 .mu.

Abstract: A fully dense ceramic-metal body including 40-88 v/o of an oxide hard phase of, in v/o of the body, 4-88 v/o M-aluminum binary oxides, where the binary oxide has a C-type rare earth, garnet, .beta.-MAl.sub.11 O.sub.18, or perovskite crystal structure, and M is a lanthanide or indium, and 0-79 v/o .alpha.-alumina; about 10-50 v/o of a hard refractory carbide, nitride, or boride as a reinforcing phase; and about 2-10 v/o of a dispersed metal phase combining Ni and Al mostly segregated at triple points of the microstructure. The preferred metal phase contains a substantial amount of the Ni.sub.3 Al ordered crystal structure. In the preferred body, the reinforcing phase is silicon carbide partially incorporated into the oxide grains, and bridges the grain boundaries. The body including a segregated metal phase is produced by densifying a mixture of the hard phase components and the metal component, with the metal component being present in the starting formulation as Ni powder and Al powder.

Abstract: Commutators of armatures for electric motors or other dynamo-electric machines are finished by subjecting them to inspection and turning operations. The first inspection operation determines the minimum amount of material that can be cut while producing a high quality armature. This determination may indicate that no formal turning is required, only finishing. The turning operation, if applicable, cuts the commutator to a substantially cylindrical shape which is substantially concentric with the axis of rotation of the armature. The finishing operation, which may be performed by the same mechanism as the turning operation, imparts a desired axial roughness to the cylindrical commutator surface. The commutators may be inspected after the turning and finishing operations to generate data useful for such purposes as automatically modifying the turning and finishing operations performed on subsequent commutators.

Abstract: A method for manufacturing a flanged shaft from a forging having a shaft and a flange having an inboard side and an outboard side using a first lathe and a second lathe. The method comprises chucking the forging in the first lathe such that at least the outboard side of the forging may be worked on and finishing at least the outboard side of the flange. The forging is then removed from the first lathe and chucked in a second lathe while referencing the forging off the outboard side of the flange such that the remainder of the forging may be worked on. The remainder of the forging is then finished into a flanged shaft.

Abstract: A system for finish machining an in-process part having an inaccessible interior cavity, an envelope of excess material to be machined, and a predefined minimum wall thickness includes a fixture for holding the in-process part to be finish machined. Also included is a co-ordinate measuring machine having a ball probe for measuring external co-ordinates of the in-process part and also having a sonic thickness probe for measuring wall thickness of the in-process part at various selected points on the part. A programmed digital computer is operably connected to the co-ordinate measuring machine to receive data regarding the measurements made. Stored in the computer is a model of the part which is to be machined and minimum wall thickness requirements at various points on the part. The computer is further programmed to calculate the optimal position of the final part in relation to its interior cavity such that wall thickness requirements are maximally satisfied over the total part surface.

Abstract: An improved cutting tool 10 for rotary cutting is described, The tool has a holder 12, a seat 26 and a cutting insert 32. The seat 26 is provided with a wear indicator 30 which creates sparks when the wear indicator comes in contact with the workpiece. The wear indicator 31 is also able to be located in the cutting insert 33. The sparks alert the user of potential future damage to the holder due to contact with the workpiece.

Abstract: Real time in-process data is collected to determine the contour and position of the interface between dissimilar layers of material. A control system is automatically programmed, based on the determined contour and position of the interface, to autonomously control the trajectory of a cutter through a conventional motion control system to separate the dissimilar layers of material. The motion control system controls the cutter movement through, for example, a conventional linear motion device including a servomotor, lead screw, and slidable carriage that holds the cutter.

Abstract: A device for machining a plurality of workpieces. The device having a plurality of identical independent machining assemblies attached on a rotating carousel plate such that one operator can unload and load a workpiece at one machining assembly while the other machining assemblies are machining the workpiece therein such that when a machining assembly returns from rotation on the carousel plate it is finished machining.

Abstract: A method for measuring the contour of a machined part with a contour gage apparatus, having a probe assembly including a probe tip for providing a measure of linear displacement of the tip on the surface of the part. The contour gage apparatus may be moved into and out of position for measuring the part while the part is still carried on the machining apparatus. Relative positions between the part and the probe tip may be changed, and a scanning operation is performed on the machined part by sweeping the part with the probe tip, whereby data points representing linear positions of the probe tip at prescribed rotation intervals in the position changes between the part and the probe tip are recorded. The method further allows real-time adjustment of the apparatus machining the part, including real-time adjustment of the machining apparatus in response to wear of the tool that occurs during machining.

Abstract: A process and device for machining a workpiece supported within a workpiece holder and having a tool which has a machining zone for machining the workpiece and supported within a tool holder. The workpiece and the tool are moved relative to one another in a machining movement for removing workpiece material to form a curved surface on the workpiece, and only a portion of the machining zone of the tool acts upon the workpiece in substantially all machining positions and forms an instantaneous machining zone. The tangent of the machining zone of the tool and the tangent of the surface of the workpiece are each oriented substantially at a right angle with respect to the direction of removal of material from the workpiece and substantially coincide within the instantaneous machining zone.

Abstract: A processing apparatus with a movable processing tool, includes a deflection detecting device, a rotating position detecting sensor, an arithmetic unit, an output circuit, a fine adjustment device, and an XY table. The detecting device detects a plurality of deflection amounts of a processing reference surface of a to-be-processed work held by a work holding member mounted to a main shaft of an NC processing apparatus. The sensor detects a rotating position of the work. The unit calculates a correcting amount of the tool at a processing point of the work from a measured value of the sensor and plural measured values of the deflection amounts of the detecting device. The circuit outputs the correcting amount synchronously with the rotating position and processing point of the work. The adjustment device has the tool fixed thereto for finely moving the tool in a processing direction based on an output from the circuit. The fine adjustment device is secured to the XY table.