Abstract: The present invention is directed to a method for producing a rotating disk for a turbomachine, forming blade root uptakes on a plurality of circumferential positions, for which, in each case, an axially extending profile groove that is bounded circumferentially by inner wall surfaces of the rotating disk is introduced on a respective circumferential position, in which production method, initially first profile grooves are introduced in a disk on first circumferential positions, and subsequently, a second profile groove is introduced in the disk on a second circumferential position located circumferentially between the first profile grooves.

Abstract: An integrated system for fabricating components for a selected wood-based project, said integrated system includes a tandem machine, a first machine for executing machining requirements for sheet material stock, said first machine being configured to selectively implement two-dimensional machining operations on a piece of sheet material stock, including operations for implementing curvilinear shapes.

Abstract: A cutting tool 1 includes a cutting edge 2, a rake face 4 and a flank 5 and is used for cutting a surface of a cylindrical or columnar work W by a skiving process. The cutting tool 1 is configured to satisfy a relational expression: tan?1(cos ?/cos(???)×tan?1(cos?1(r?/r))<??90° where “?” denotes a rake angle, “?” denotes an inclination angle of the cutting edge 2 with respect to the rotation axis A, “?” denotes an angle between a feed direction of the cutting tool 1 and a direction orthogonal to a rotation axis A in a plane view of the cutting tool 1 and the work W, “r” denotes a radius of an outer circumferential surface of the work W before processing, and “r?” denotes the radius of the outer circumferential surface of the work W after processing.

Abstract: A method of manufacturing a turbine disk includes the steps of machining an initial slot using a cutting tool and machining intermediate and semi finished slot using a form tool that forms surfaces of the slot except for the bottom surface. A final finishing step utilizes a cutting tool that includes a shape that forms the bottom portion of the disk slot.

Abstract: A method and apparatus for processing workpieces to form parts. Tools associated with a multi-spindle machine may be positioned with respect to a plurality of workpieces on a fixture comprising a plurality of platforms and an adjustment system. Each platform may be individually moveable with respect to others in the plurality of platforms about a number of axes. The plurality of platforms may be configured to hold the plurality of workpieces in which each platform may be configured to hold a workpiece in the plurality of workpieces during operations performed by the multi-spindle machine. The adjustment system may be configured to move each of the plurality of platforms about the number of axes independently from the others in the plurality of platforms. The operations may be performed on the plurality of workpieces using the multi-spindle machine and the fixture to form a plurality of parts.

Abstract: The invention relates to a steel back two-way synchronous drawloom and a use method thereof. The drawloom comprises an upper die base, an upper die board, a lower die base and a lower die board, and further comprises a molded upper die and a working positioning lower die. With the adoption of a two-way synchronous broaching gear method, a gear of a product in the invention has the advantages of high density, high strength, as well as uniform and neat arrangement; furthermore, a brake pad of the product in the invention has the advantage of high shear strength. In addition, the drawloom has high production efficiency, stable whole production process, a firm gear root, and non easy falling, as well as is adaptable to be produced in mass.

Abstract: A table top broach machine comprising a table top; at least one support member positioned below and mounted to the table top; a drive mechanism operatively connected to at least one sealed drive spindle. The drive mechanism is positioned below the table top and configured to attach to at least one of the table top and the support member; and a base is positioned below and connected to the support member. The base is in fluid communication with and positioned below the table top.

Abstract: A broaching apparatus (200, 400) includes; a broach (300, 600) having a cross-section corresponding to a geometry of slot (115) between adjacent steeples (110) of a turbine rotor (100), and a mechanism (210, 220, 230, 410, 420, 430) which moves the broach (300,600) through the slot (115) in a direction substantially parallel to a direction of extension of the slot (115).

Abstract: Splines, which are to be meshed with a joint that transmits torque to a rotary ring of a hub unit, are formed in a side face of the rotary ring, the side face being on one side of the rotary ring in the axial direction. Spline grooves are formed in the side face by subjecting the side face to broaching.

Abstract: A broaching device is provided with puller heads (132,134) that hold tip portions of broaches (116) and are supported in a horizontally freely movable manner, main motors (136, 140) capable of moving the puller heads (132, 134), retriever heads (133,135) that hold base end portions of the broaches (116) and are supported in a horizontally freely movable manner, sub motors (138,142) capable of moving the retriever heads (133,135), and a control device (117) that enables the puller heads (132,134) and the retriever heads (133, 135) to be synchronized with each other and to move at a fixed speed by controlling the motors (136,138,140,142), whereby machining accuracy can be improved.

Abstract: An apparatus for machining a profile in an inner wall of a tubular includes a frame on which a drive system is disposed, a carriage head disposed on at least one track of the frame, wherein the drive system is configured to operate the carriage head along the at least one track, a torque tube coupled to the carriage head and extending therefrom, the torque tube having a cutting tool coupled thereto, and a plurality of stabilizer pads disposed proximate the cutting tool and along a circumference of the torque tube, wherein the plurality of stabilizer pads are configured to engage the inner wall of the tubular and centralize the cutting tool within the tubular.

Abstract: The invention provides an enhanced method and system for machining an array of components. A holding mechanism is provided for holding an array of components in a machining process. The holding mechanism comprises: a rigid base plate and at least one support for holding a raw material while machining, one end of each support being coupled to the rigid base plate. The holding mechanism is further provided with a secure plate movably coupled to the rigid base plate. The secure plate is provided with one or more holding parts such as double-sided tape or guiding pins for holding the raw material. The secure plate can be elevated to hold the raw material during a machining operation such as peripheral machining.

Abstract: Sample extraction or trimming from an end strip of an elongated formed metal that is coiled in layers within a tensioned metal coil resting on driven rollers. A cut channel is formed across the material width. In some embodiments the cut channel is formed between the rollers and by cutting at an angle relative to the coil outer surface. Coil weight and/or a coil tensioner mechanism inhibits coil relaxation along the cut channel by maintaining tension on wrapped layers against each other when the coil is unbanded for sample extraction. The coil is rotated so that the cut channel clears the rollers laterally. Material downstream the cut is then separated from the coil. After trimming and/or sample extraction the coil maintains rolled tautness for ease of rebanding.

Abstract: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface.

Abstract: A table top broach machine comprising a table top; at least one support member positioned below and mounted to the table top; a drive mechanism operatively connected to at least one sealed drive spindle. The drive mechanism is positioned below the table top and configured to attach to at least one of the table top and the support member; and a base is positioned below and connected to the support member. The base is in fluid communication with and positioned below the table top.

Abstract: A generator rotor shaft includes a shaft body extending through a first axial distance, and being hollow. Spline teeth are formed in an inner bore of the hollow shaft body. The ratio of a distance from one end of the hollow body to a remote axial end of the spline teeth and compared to the overall length of the shaft body is between 0.3 and 0.6. A rotor balance assembly, a generator, and a method of forming a generator rotor shaft are also disclosed and claimed.

Abstract: A broaching system comprises a plurality of sub-bars configured to receive broaching tools. The system further comprises a broaching machine and a robot, the robot being configured to mount and remove sub-bars from the broaching machine. The robot includes an arm operable in three or more axes, and an end of arm tool. A method of broaching comprises providing a plurality of sub-bars, a broaching machine, and a robot having an arm operable in three or more axes and an end of arm tool. The method further includes mounting, by the robot, a sub-bar onto the broaching machine; and performing a broaching operation using the sub-bar. Simultaneous to the performance of the broaching operation, the method includes affixing another tool to another sub-bar, and/or moving, by the robot, another sub-bar to a storage location.

Abstract: A broaching tool for the machining of bore surfaces, namely for introducing at least one groove, is proposed, the tool having a cutter head (5) with at least one cutter (69) and with a body (3) bearing the cutter head (5). The tool is characterized in that the cutter head (5) is rotatably movable and positioned eccentrically in the body (3), and that the middle axis (65) of the cutter head (5) forms an acute angle ? with the middle axis (7) of the body (3).

Abstract: A machining system includes a support configured to retain an article, such as a rotor disk, having an area, such as a surface of a slot in the disk. A cutting tool, for example, a broach, is movable relative to the support to cut the area. A heating member, such as a laser, is configured to locally heat the area of the article. In one example, the cutting tool includes a body having a cutting edge. The heating member is supported by the body and is configured to provide heat adjacent to the cutting edge. The cutting edge cuts the locally heated area while the area is still heated.

Abstract: A machine tool includes a first motor, a gear, and a machine element which is movable in a direction of movement by the first motor via the gear. A second motor is provided to apply a force directly upon the machine element in the direction of movement of the machine element in the absence of an interposed gear between the second motor and the machine element. The second motor is constructed to operate in such a way that the applied force counteracts an oscillatory movement of the machine element in the direction of movement of the machine element.

Abstract: The apparatus of the present invention provides a broaching machine configured to produce an internal gear member. The broaching machine includes a broaching tool defining a central axis. The broaching tool includes a first set of broaching teeth configured to cut only a first flank portion of a plurality of gear teeth; and a second set of broaching teeth configured to cut only a second flank portion of the plurality of gear teeth. The plurality of gear teeth are formed such that the first and second flank portions of each gear tooth are tapered between a first end portion and a second end portion. The broaching machine also includes a motor configured to rotate the broaching tool about the central axis at a selectable rate and in a selectable direction. A corresponding method for producing an internal gear member is also provided.

Abstract: A broaching tool for the machining of bore surfaces, namely for introducing at least one groove, is proposed, the tool having a cutter head (5) with at least one cutter (69) and with a body (3) bearing the cutter head (5). The tool is characterized in that the cutter head (5) is rotatably movable and positioned eccentrically in the body (3), and that the middle axis (65) of the cutter head (5) forms an acute angle ? with the middle axis (7) of the body (3).

Abstract: The apparatus of the present invention provides a broaching machine configured to produce an internal gear member. The broaching machine includes a broaching tool defining a central axis. The broaching tool includes a first set of broaching teeth configured to cut only a first flank portion of a plurality of gear teeth; and a second set of broaching teeth configured to cut only a second flank portion of the plurality of gear teeth. The plurality of gear teeth are formed such that the first and second flank portions of each gear tooth are tapered between a first end portion and a second end portion. The broaching machine also includes a motor configured to rotate the broaching tool about the central axis at a selectable rate and in a selectable direction. A corresponding method for producing an internal gear member is also provided.

Abstract: A broach tool holding system (20) includes a pair of locator pins (46) rotatably mounted on a tool holder plate (36) to facilitate mounting and detachment of an associated broach tool (34). The broach tool (34) has a pair of locating openings (62) each of which has a locating hole (64) including round clearance surfaces (70) and round locating surfaces (72) that cooperate with the locator pins to provide the mounting in an accurately positioned location. The method of mounting the broach tool utilizing the rotatable locator pins (46) facilitates the mounting of the broach tool (34) with the locating holes that also facilitate the mounting and with securement being provided by clamps (74) for the broaching operation.

Abstract: A process for manufacturing ratchet wheels including the steps of: forming a cylindrical forging billet by hot or cold forging, the forging billet having a thru hole of inter-communicating recesses which are pre-formed in a forging die; providing a broach having teeth formed thereon; machining the forging billet into a workpiece having a sidewall with two annular grooves on the sidewall; forming a semi-product having a driving recess which is complementary in shape to the teeth by operating the broach through the workpiece along the thru hole; and forming a finished product having a plurality of teeth on a sidewall thereof by milling the semi-product.

Abstract: The invention relates to a wheel bearing assembly for motor vehicles with a bearing provided with an inner ring and an outer ring, the bearing being fitted with its outer ring into a bearing casing and the outer ring being mechanically supported in axial direction on a first side by a supporting surface provided on the bearing casing. Discrete and preferably evenly arranged stop protrusions are formed on the inner circumference of the bearing casing, the outer ring abutting thereon in axial direction on its second side, and the stop protrusions being formed by locally plastic forming the bearing casing.

Abstract: The present invention provides a multi fiber optical ferrule, a tool for forming the ferrule, and a method of making the ferrule. The multi fiber optical ferrule is formed of two ferrule halves which are either molded or cast as imprecise blanks which are machined using a broach in order to precisely cut inner surfaces thereof for receiving an array of fibers. The inner surfaces of a pair of ferrule halves are cut simultaneously in order to assure accuracy in the fiber receiving and pin receiving channels. The halves are joined together with a fiber array placed therebetween to form the ferrule.

Abstract: A broach tool for finishing a hollow hole has a number of cutting edges arranged in order of dimensions in a longitudinal direction. The cutting edges in at least a finishing portion are formed of cemented carbide. A cutting depth of each edge in a cutting direction is 5 &mgr;m to 15 &mgr;m for slots such as a spline hole and a ball groove, or 3 &mgr;m to less than 9 &mgr;m for a round broach hole. A work has the hollow hole pre-worked leaving a finish cutting allowance, and has hardness of 45 to 65 HRC (Rockwell hardness C scale) after subjected to a thermal treatment. A hollow hole cut surface is finished into the finished dimension with use of the broach tool. The broach tool has little chipping on cutting edge tips and is hardly abnormally worn and has a long life.

Abstract: A linear broaching machine for machining rotating parts wherein a plurality of tooling carriages are mounted upon a moving chain and broach type tools are supported by the carriages wherein the tools are moved in a linear path into engagement with a rotating workpiece to remove metal from the workpiece and form an accurately sized cylindrical surface concentric to the workpiece axis of rotation. The tool carriages are spaced from each other providing non-machining access durations wherein the workpiece may be loaded or unloaded from its rotating support spindles.

Abstract: A process for the manufacturing of longitudinal profiles such and tongue and groove on boards wherein the process includes the steps; a) Moulding a substantial part of the profile cross-section by means of milling with a milling tool. b) Fine moulding undercuts in at least the groove of the board by means of broaching utilising at least one broaching tool.

Abstract: A boring head is disclosed in which a plurality of boring tools provide a plurality of simultaneous cuts to a workpiece. A tool holder supports the plurality of boring tools generally perpendicular to a bore axis, so as to increase the rate of a boring operation.

Abstract: A device for forming a cutting blade for prints is disclosed. The device of this invention forms cutting blades by appropriately bending and cutting a metal strip into desired blades through integrated work regardless of a difference in the size of metal strips. The device is also provided with changeable jigs, thus being capable of forming bridge notches having different intervals, widths and configurations. The device has one vertically movable bending pin and one swing cutter. The bending pin is capable of quickly bending a metal strip into a desired configuration, while the swing cutter finely and precisely cuts the metal strip into cutting blades. The device also quickly produces high precision cutting blades, thus improving productivity and reducing the cost of the cutting blades.

Abstract: Apparatuses and methods are implemented for machining a longitudinally extending slot in a bore of a component. The component is gripped in a gripping device of a workholding device. A cutting operation is performed in order to cut the slot in the bore by a cutting tool. The cutting operation forms burred slot edges. The edges are further machined by inserting a deburring device into the bore. Relative angular reciprocation for a limited angle is imparted between the deburring device and the component.

Abstract: A method of forming a drive surface on an eccentric pin of a drive shaft for a scroll-type compressor is provided. First, an eccentric pin having an axis and a generally cylindrical outer surface disposed radially about the axis is provided. Next, a broaching tool having a machining face with a contour is provided. The contour may be a concave shallow bell-shaped curve. Finally, the drive surface is formed by engaging the outer surface with the machining face transverse to the axis. In this manner, the machining face forms a shape complementary to the contour on the eccentric pin thereby forming a slight crown on the drive surface. The broaching tool produces an adequate surface finish so that no subsequent machining operations to the drive surface are necessary.

Abstract: A device for use with a press of the type which includes a vertical ram for exerting a force on a first part to press the first part through a second part where the first part falls free when pressed through and separated from the second part comprising, a vertically extending shaft, an arm mounted to the shaft for generally horizontal rotational movement on the arm, a catch receptacle for a first part which is pressed free of a second part, means are provided for mounting the catch receptacle on the arm at varying distances from where the arm is mounted to the shaft whereby the catch receptacle may be positioned under the vertical ram of the press and catch a first part as it is pressed free of the second part.

Abstract: This invention relates to a method for manufacturing a plurality of longitudinally extending slots in the bore of a component (1). One example of such a component is the sleeve element of an automotive power steering rotary valve. More particularly the invention is directed towards a method of minimising burring of the slot edges of the sleeve component. The method comprises the steps of gripping the component (1) in a gripping mechanism (2) of a workholding device, performing a first cutting operation (5) in which the slot is cut in the bore by a series of progressively deeper cutting stroke of a cutting tool (5), further machining (30) the bore of the component, the machining of the bore being carried out while the component remains gripped in the gripping mechanism, characterized in that while the component remains gripped in the gripping mechanism the slot undergoes a second cutting operation (5) similar to the first operation.

Abstract: A mechanical drive linkage for a blind spline broaching machine wherein a rotary motion provided by a servo driven helical ball or roller screw is converted to a linear reciprocal motion of a ram through the use of a kite link and a pivot link that as a part of their motion communicate with guide tracks in order to prevent side loads from being applied to the ball screw, its carriage, or the ram of the blind spline broaching machine.

Abstract: The invention discloses a method of machining workpieces such as crankshafts, camshafts or similarly shaped members, having surfaces which are disposed both concentrically and also eccentrically relative to a workpiece axis and which are rotationally symmetrical or approximately rotationally symmetrical. The machining of the concentrically curved surfaces is effected by means of turning, rotational broaching and/or turning-rotational broaching and the machining of the eccentric workpiece surfaces is effected by means of end-milling wherein the axis of rotation of the milling cutter is transverse with respect to the spindle axis 3, and the workpiece is subjected to cutting finishing machining and the clamping means.

Abstract: A machine tool having a machining member such as a grinding wheel, a milling cutter, shaping cutter or also includes a slide on which a straight edge bar is mounted. The straight edge bar is engaged by the machining member to machine a surface on the bar held on the slide. The slide is moved at the feed rate used for machining with the particular machining member used, and then the bar is rotated about its longitudinal axis, that is, the axis parallel to the movement of the slide. The amount of error from a straight line that has been formed is sensed by sensors positioned in the same plane as the contact line of the grinding wheel. The actual error of the slide is thus determined, and portions of the surface of the bar can be gradually scraped or refined by other means until the sensors indicate that the surface has become a precise straight edge. The straight edge surface can then be used as a reference for checking workpieces or for automatic error compensation. Surfaces at 90.degree.

Abstract: A broaching device and method for enlarging an opening, hollow or cavity in a workpiece comprises a broaching tool which is mounted on, or formed on, either the shaft or the nut of a ballscrew drive unit which includes a ballscrew shaft and a ballscrew nut.

Abstract: The plant comprises two broaching lines with successive actions, each comprising a traction device and an accompanying device which have axes of travel that are aligned along a common work axis. The work axes of the two broaching lines are separated by a distance at least equal to the diameter of the plate. The two traction devices and the two accompanying devices are arranged on the same side of the plate to be broached. The plate is moved on its support between a first broaching position in a first broaching line and a second broaching position in the second broaching line. The broaching on the first broaching line and the return of the traction and accompanying devices and of the broach to an initial arrangement, on the second broaching line, are performed simultaneously.

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 broaching machine for cutting keyways in a bore of a piece part. There is a stationary bed plate on which is slidably mounted a moveable vise which slides along the bed plate. The jaws of the moveable vise clamp the piece part which is to be machined. A broach holder lowers the broach through an upper fixed support which has upper broach guide means disposed therein. The broach then passes through the piece part and through a lower broach guide means positioned in the bed plate. A broach pulling unit receives the bottom of the broach and reciprocates the broach in an up and down vertical cutting operation. The broach is maintained in position and alignment by means of the upper and lower broach guide means which are disposed above and below the piece part. The upper and lower broach guide means are removable and replaceable after a predetermined amount of wear has occurred.

Abstract: The present invention relates to a method and apparatus for forming a longitudinally extending keyway portion in a mill roll having a central bore. The keyway portion may be either a keyway or a tab portion. A cutting head is provided, and includes a body and one or more cutting tools extending from the periphery of the cutting head body. The cutting head is driven through the central bore of the mill roll, and the cutting tools form one or more keyway portions adjacent and communicating with the central bore.

Abstract: A method and apparatus for broaching a series of axially aligned and spaced bores in which a first broach is provided for broaching in an initial operation. The first broach has circumferentially extending cutting teeth. The first broach also has arcuately spaced, longitudinally extending grooves which cross the cutting teeth and divide the cutting teeth into arcuate segments. Broach guides in the spaces between bores have ribs arranged in the same arcuately spaced relation as the grooves about an axis coinciding with the aligned axes of the bores. The first broach is advanced through the bores with the ribs slidably received in the grooves to guide the first broach and the cutting segments, broaching arcuately spaced sectors of the bores but leaving unbroached ridges therebetween. A second broach broaches the ridges left by the first broach.

Abstract: Blade attachment slots for gas turbine engines are prepared by grinding to a stepped, generally straight sided configuration, semi-finish grinding to an envelope about 0.005 inches to 0.010 inches above the blueprint configuration, and finishing by broaching. This reduces the overall cost of the manufacturing process, permits a more economical use of existing broach machines, and allows greater versatility for short model runs and "just-in-time" production.

Abstract: Apparatus for machining an angularly disposed array of slots (FIG. 7) concentric with the axis (85) of a bore of a valve sleeve (1) which has a sleeve holder (3) which is rotatably indexed for locating the arcuate position of each slot of the array, a cutting tool (5) positioned on the apparatus to cut a slot in the bore of the sleeve at each indexed location and a boring device (80, 81, 82, 83, 90) for forming the bore co-axially with the array of slots; the operation of the cutting tool (5) and boring device (80, 81, 82, 83, 90) taking place while the sleeve (1) is mounted in the one orientatioln in the holder (3).

Abstract: A method of manufacturing a thick-walled small diameter pipe by repeating a process comprising a pipe extension process and a heating process on a pipe to be processed plural times, wherein a machining process on the inner circumferential surface of said pipe to be processed is performed prior to the pipe extension process in the final cycle of said process or a process near the final cycle to remove a black skin layer, cracks and puckers, providing smooth inner surface and excellent proof pressure.

Abstract: A blind spline broaching machine for machining splines as well as sprockets, keyways, gears, cams and contours on workpieces, such as shafts. The blind spline broaching machine of the preferred embodiment has dual rams reciprocable relative to a rotary dial. The rams hold a corresponding pair of workpieces, while the rotary dial supports one or more broaching tools. The rotary dial is rotatable to index the workpieces to and from the rams. The blind spline broaching machine also incorporates a part moving unit on its periphery, which enables the use of a single loading/unloading station at which workpieces are alternately loaded onto and unloaded from the rotary table. Because the workpieces are loaded and unloaded from the same location on the periphery of the blind spline broaching machine, the side of the blind spline broaching machine opposite the loading/unloading station remains open to permit ready access to the tooling and the interior structure of the blind spline broaching machine.

Abstract: A clamping jaw arrangement for a broach puller assembly is described in which first and second jaw sets are engaged with the end face and one side of the annular groove of the broach tool. The second jaw set initially engages one side of the annular groove and is locked in position with an associated spring urged operating sleeve, and upon lifting of the broach tool in reaction to engagement with the workpiece, the first jaw set moves radially inward and is held against the chamfered end face of the tool to eliminate all axial play while ensuring proper seating of the jaw elements in each set.