Abstract: Provided herein is a drill for a dental implant, which includes a coupling part connected to a hand piece configured to provide a rotational force, a body part disposed below the coupling part and configured to transmit the rotational force downward, a cutting part including a plurality of cutting blades and a void section, the cutting blades disposed below the body part to cut an alveolar bone and form a hole therein and being spaced apart at a predetermined angle in a rotational direction, and the void section surrounded by the cutting blades along at least a portion of an inner circumference of the cutting blades, and a coolant passage configured to communicate with the void section by passing through the coupling part and the body part and configured to, while the alveolar bone is being cut, supply coolant to the void section so that the coolant is introduced to the cutting blades.

Abstract: A self-clinching fastener for attachment to a plastically deformable metal panel includes a body portion with a central axis, the body portion has an outer peripheral surface extending in a direction perpendicular to the central axis. A punch portion is coaxial with the central axis and extends from the body portion such that the annular-shaped surface encircles the punch portion, the punch portion includes an outer peripheral surface extending in the direction of the central axis. A plurality of spaced apart lugs encircle the punch portion and axially projecting outwards from the annular-shaped surface, one of the lugs has a contact face configured to engage the metal substrate, the contact face declining, relative to an imaginary horizontal plane on which the annular-shaped surface lies, in a radially outwards direction of the self-clinching fastener.

Abstract: A turret head assembly for forming an article includes at least one smoothing roller. Each of the at least one smoothing roller is rotatably mounted on a respective at least one roller support member. The turret head assembly further includes an upper ring member and a lower ring member. The upper and lower ring members include respective apertures located in the centers thereof. The at least one roller support member extends between the upper ring member and the lower ring member. The turret head assembly further includes a turret head-assembly support member defining a turret-head axis. The turret-head-assembly member extends through the respective apertures in the upper and lower ring members.

Abstract: The present invention relates to a method and tools for manufacturing of seamless tubular shapes, especially tubes and canisters. In the method of the invention the tubular shape is extracted from the flash continuously produced during the plunging of a consumable rod against a rigid anvil. The tools of the invention include a consumable rod; a non-consumable or consumable rigid anvil; first means for rotating the consumable rod and the non-consumable or consumable rigid anvil relatively with respect of each other; second means for plunging the consumable rod and the non-consumable or consumable rigid anvil relatively against each other; open die condition configuration for continuous production of flash during said plunging.

Abstract: A method for manufacturing a connection between a hose and coaxial line section is provided. The method includes providing an outer pipe, inserting an inner pipe along with a hose situated at least partially on an outer periphery of the inner pipe inside the outer pipe, and deforming the outer pipe, the inner pipe or both so that the hose becomes clamped between the inner pipe and outer pipe. A coaxial line section for a refrigerant circuit of a motor vehicle also is provided.

Abstract: A device for sealing one or more orifices on a vessel for pressurizing fluid is provided. The device includes an outer surface and an inner surface. The inner surface includes one or more substantially semi-spherical protrusions corresponding to the orifices. The protrusions are configured to contact with edges of the orifices and seal the orifices.

Abstract: A method of forming a housing which includes roll forming a steel tube radially inwardly with a plurality of rollers each having a rolling axis parallel to the longitudinal axis of the tube, the rollers compressing the tube and forming reduced diameter portions and enlarged diameter portions. The method then includes cutting the tube perpendicular to the longitudinal axis generally midway through an enlarged diameter portion and a reduced diameter portion, forming a plurality of minor image preforms. Finally, the method includes cold working the preforms into the desired shape of the housing and increasing the strength of the steel at least 15% and forming a housing member having enlarged diameter open end and a reduced diameter open end.

Abstract: In order to save the investment for a separate cold rolling machine for applying threads etc. a cold rolling unit is placed in a moveable manner onto the Z-drives of a turning machine wherein the cold rolling unit can be configured much larger and much more stable and with less wear than a cold rolling unit used in a tool revolver. Even parallel processing through turning and rolling is facilitated.

Abstract: The invention relates to a process for forming a pipe portion, in which process a base having an opening and having an inwardly projecting collar is formed. It is provided that the pipe portion is made to rotate, that the pipe portion is drawn in by means of a forming roller, with the base being formed by the drawing-in process, that an inwardly projecting material thickening is formed integrally in the base and that an opening is made in the base in the region of the inwardly projecting material thickening, wherein the inwardly projecting collar is formed by at least part of the inwardly projecting material thickening. Furthermore, the invention relates to an apparatus for forming a workpiece.

Abstract: Tubing reaming apparatus comprises a housing adapted to be mounted to tubing to be reamed. The housing provides mounting for a reamer shaft adapted to mount a cutter within the tubing. The housing also provides mounting for a drive arrangement. A gear arrangement is provided between the drive arrangement and the reamer shaft. The housing may comprise a clamping arrangement adapted to reduce residual bend and ovality of the tubing.

Abstract: An auto-scraping apparatus for a work piece of a hard rail has a tracking device, a driving device and a tool device. The tracking device has a connecting frame, a moving frame, a lifting frame and a tool frame. The moving frame is movably connected to the connecting frame. The lifting frame is movably connected to the moving frame. The tool frame is rotatably connected to the lifting frame. The driving device is connected to the tracking device and has two linear motion units and a rotating motion unit. One of the linear motion units drives the moving frame and the other linear motion unit drives the lifting frame. The rotating motion unit is mounted in the tool frame and has a rotating shaft. The tool device is detachably connected to the driving device and has a tool carrier and a relieving tool.

Abstract: A method of forming a housing which includes roll forming a steel tube radially inwardly with a plurality of rollers each having a rolling axis parallel to the longitudinal axis of the tube, the rollers compressing the tube and forming reduced diameter portions and enlarged diameter portions. The method then includes cutting the tube perpendicular to the longitudinal axis generally midway through an enlarged diameter portion and a reduced diameter portion, forming a plurality of mirror image preforms. Finally, the method includes cold working the preforms into the desired shape of the housing and increasing the strength of the steel at least 15% and forming a housing member having enlarged diameter open end and a reduced diameter open end.

Abstract: A pipe chamfering device for chamfering an opening of a metal pipe has a secured member, a sliding member mounted on the secured member, and a chamfer cutting tool apron mounted on the sliding member. The secured member is secured onto a rotating plate, and a dovetail block is formed on a front side of the secured member. The sliding member has a dovetail slot on a rear side mounted correspondingly with and sliding along the dovetail block of the secured member. The sliding member has an axial aperture, and an axial rod is disposed in the axial aperture. A front end of the axial rod extends from a front side of the sliding member and is connected to a roller. The chamfer cutting tool apron has a chamfer cutting tool, and the chamfer cutting tool apron is mounted on the strip slot of the sliding member. The chamfer cutting tool is able to be driven by the rotating plate and is capable of forming a weld root with an even thickness at an opening of a non-circular pipe.

Abstract: A method of forming a housing which includes roll forming a steel tube radially inwardly with a plurality of rollers each having a rolling axis parallel to the longitudinal axis of the tube, the rollers compressing the tube and forming reduced diameter portions and enlarged diameter portions. The method then includes cutting the tube perpendicular to the longitudinal axis generally midway through an enlarged diameter portion and a reduced diameter portion, forming a plurality of minor image preforms. Finally, the method includes cold working the preforms into the desired shape of the housing and increasing the strength of the steel at least 15% and forming a housing member having enlarged diameter open end and a reduced diameter open end.

Abstract: A manufacturing method for appropriately manufacturing an arc-shaped rail that is C-shaped in cross section includes: a first process of forming one side wall 313 and one of circumferential wall portions 312 by bending a ring R of a thin metal plate by spinning, the circumferential wall portions 312 being portions on both sides of a width direction of the inner circumferential wall or the outer circumferential wall divided by a slit 314; a second process of forming the other side wall 313 and the other circumferential wall portion 312 by spinning using a plurality of cores 41 to 43 so as to envelop the cores 41 to 43, the cores 41 to 43 being obtained by dividing a core in a width direction to not more than a width of the slit 314; and a third process of separately extracting the cores 41 to 43 from the slit 314.

Abstract: A pipe chamfering device for chamfering an opening of a metal pipe has a secured member, a sliding member mounted on the secured member, and a chamfer cutting tool apron mounted on the sliding member. The secured member is secured onto a rotating plate, and a dovetail block is formed on a front side of the secured member. The sliding member has a dovetail slot on a rear side mounted correspondingly with and sliding along the dovetail block of the secured member. The sliding member has an axial aperture, and an axial rod is disposed in the axial aperture. A front end of the axial rod extends from a front side of the sliding member and is connected to a roller. The chamfer cutting tool apron has a chamfer cutting tool, and the chamfer cutting tool apron is mounted on the strip slot of the sliding member. The chamfer cutting tool is able to be driven by the rotating plate and is capable of forming a weld root with an even thickness at an opening of a non-circular pipe.

Abstract: A trimming turret including a first trimmer head including a first pilot. The turret is configured to receive a stress induced plastically deformed container having earing about a respective opening in the container, and at least one of (i) direct the container to the first trimmer head so that the pilot becomes located inside the opening, and (ii) direct the first trimmer head to the container so that the pilot becomes located inside the opening. The turret is configured to trim off the earing from the container with the first trimmer head.

Abstract: The present invention provides an apparatus (100) for forming circumferential grooves (14) in the exterior surface of a linear member (10), such as a tube. The grooves are formed by rotating a cylindrical cutting element (120) around the tube such that cutting means in the cylindrical cutting element form the grooves. One rotation of the cylindrical cutting element causes multiple grooves to be formed in the surface of the tubes.

Abstract: The invention concerns a flow drilling and tapping method for assembling thin metal sheets. A tubular extension (12) produced on said metal sheet comprises a conical mount (18) at said metal sheet (10). Through said mount (18), advantageously provided with a hexagonal base (24), the loads are transmitted along the tubular extension (12), and it is possible to fix a perforated element (1) on a metal sheet (10) having a thickness less than 1.5 mm and to apply a standard tightening torque.

Abstract: A manually operated tool for deburring cut ends of metallic electrical tubing (EMT) and/or copper water service tubing comprising a cutting head having a pilot cylinder to fit inside the end of the tube, and a single cutting blade contoured to scrape burrs simultaneously off the inside and outside of the tube end. The cutting head is rotatably driven by a ratcheting handle having a large diameter grip radially adjustable to be positioned as pistol grip style. The deburring tool is capable of working tube ends in close quarters. The large pistol grip and ratchet action combine to operate with a reduced amount of repeated motion and do not require the tight grip of a screw driver type handle. The tool is light weight and portable in contrast to prior art deburring tools requiring a drill motor for power. The pistol grip encourages the use of the larger muscles of the arm instead of the hand and wrist to provide the rotating power.

Abstract: A method for treating the surface of a machine element, such as the raceway and/or a rolling element of a rolling element bearing, comprising the steps of—subjecting the surface to a hard turning operation so as to obtain a specific roughness profile having a series of alternating ridges and grooves, —after the hard turning operation subjecting the surface to a ball calendering operation so as to flatten the ridges of the roughness profile whereby a ?q value smaller than 5° is obtained.

Abstract: Apparatus for both forming and coping the end of a tube. The tube is gripped such that it is aligned with a movable first tool assembly that is positioned, in a first operation, adjacent said tube end. The tool assembly is then controlled in a manner such that the tube end is formed. Thereafter, the first tool assembly is removed and replaced with a second tool assembly which is controlled in a manner such that the formed tube end is then coped. The movable tool assembly is rotatable about its axis to a predetermined plane.

Abstract: A pre-beading apparatus for fashioning a cylindrical includes a housing have a work surface and an aperture formed in the work surface, where the aperture is capable of accommodating the cylindrical workpiece. A rotatable head assembly is concentrically aligned with the aperture, and includes a bead wheel and a cut wheel disposed on opposing distal ends of the rotatable head assembly. A gripper assembly is disposed within the housing and includes a securing means that extends into the cylindrical workpiece and permits selective movement of the cylindrical workpiece in an axial direction.

Abstract: A device (1) for socket-deforming an end of a tube, for example a tube of a heat exchanger, and for cutting that tube to a desired length, the cutting taking place at the end to be deformed. The The device (1) comprises a deformation and cutting member (5) to be inserted into the tube to be worked, the member (5) comprising deforming means (15) arranged to at least locally modify the inner diameter of the deformation and cutting member (5) by varying its perimetral dimensions, said deforming means (15) being arranged to cooperate, for effecting said dimensional variation, with actuator means (40) with a movable support (12), the deforming elements carrying cutting elements (31) for separating an end tube portion by acting from the inside of the tube without chip removal, in order to obtain a deformed tube of the required length.

Abstract: A method of manufacturing a speed ring in a continuous process using a magnetizing fixture and a trimming fixture. An unmagnetized magnetic strip is fed into the trolley of a magnetizing fixture, clamped stretched, and magnetized by a coil. The newly magnetized strip is then cut and fed into a trimming fixture. As the magnetized strip goes through the trimming fixture, it runs over a hall effect sensor which determines where a center of a pair of poles is located. Based on where a pair of poles is located the cutting blade of the trimming fixture is activated and a magnetic strip that can be turned into a speed ring is created.

Abstract: The present invention is a method for reducing the deformation along a cut contour edge (26) of a sheet (2) caused by the cutting process whereby sheet material (4) protrudes above the top surface of the sheet being cut. One group of embodiments (22, 50, 60) apply pressure to the deformation to flatten the protrusion (4). Another group of embodiments (70, 80) cut away ant material protruding above the top surface of the sheet. The deformation reduction mechanisms of both groups may be mechanically linked to the contour-cutting element or they may pass over the line of the contour cut independently.

Abstract: A method of manufacturing a hockey puck for enhancing a hockey player's skills, strength and endurance. The method of manufacturing a hockey puck includes the steps of severing a disk member off a solid metal shaft, rounding perimeter edges of the disk member, and pressing a gripping into an outer perimeter surface of the disk member. The metal shaft may be comprised of various types of metal such as but not limited to aluminum and steel. The disk member is preferably 2-5 times heavier than a conventional hockey puck depending upon the metal utilized. The disk member is preferably three inches in diameter in order to simulate the size of a conventional hockey puck, however the disk member may have diameters greater or less than three inches depending upon the type of training the hockey puck is to be utilized within.

Abstract: A method of cold forming a capped cylinder with geometrically spaced torsional engagement radial projections on an exterior side of the capped cylinder is provided. The method includes the step of striking a generally flat blank to form a drawn part having a first capped portion and a second cylindrical portion adjacent an open end of the capped cylinder, placing the drawn part with the capped portion into a die with a cylindrical cavity portion having a first diameter with radial projections extending to a second diameter greater than said first diameter; inserting into the drawn part open end a mandrel, and rotating said mandrel with respect to the drawn part to plastically deform the drawn part cylindrical portion radially outward into the die cylindrical portion to cold form the radial projections on the exterior side of the second cylindrical portion of the capped cylinder.

Abstract: A method of manufacturing a hockey puck for enhancing a hockey player's skills, strength and endurance. The method of manufacturing a hockey puck includes the steps of severing a disk member off a solid metal shaft, rounding perimeter edges of the disk member, and pressing a gripping into an outer perimeter surface of the disk member. The metal shaft may be comprised of various types of metal such as but not limited to aluminum and steel. The disk member is preferably 2-5 times heavier than a conventional hockey puck depending upon the metal utilized. The disk member is preferably three inches in diameter in order to simulate the size of a conventional hockey puck, however the disk member may have diameters greater or less than three inches depending upon the type of training the hockey puck is to be utilized within.

Abstract: A work station having a number of tools used to prepare pipe stock for accepting mechanical pipe couplings is disclosed. The work station has a chuck for rotating the pipe. A movable carriage on which the tools are pivotally mounted is mounted adjacent to the chuck. The tools include a pipe cutter, a reamer and a grooving tool. The grooving tool is for forming circumferential grooves externally around the pipe. The grooving tool has a grooving roll which cooperates with an oppositely disposed back-up roll to deform the pipe and create the groove. The grooving tool is pivotally mounted on the carriage via a spring-biased pivot arm having longitudinal slots engaging set screws which permit the position of the grooving tool to be adjusted to engage pipes of various diameters.

Abstract: The present invention relates to a method for manufacturing a formed piece of aluminum or some other relatively soft metal. In accordance with the invention, a slice is cut form a rod of aluminum or some other raw-cast metal; the slice forms a blank (3), which is placed on the mould surface (10) of a mould tool (5) rotating about its axis (4), and which is formed using a roll forming tool rotating about its axis (6) inclined to the axis of the mould tool and being in linear rolling contact with the blank surface. The blank is then formed to a substantially disc-shaped piece of plate between the opposite rotating tools (5, 7). The method may be part of the manufacturing process of a frying pan or kettle so that the roll formed piece may comprise the bottom and collar of the utensil, which is bent to form the sides of the cooking utensil at the next pressure turning stage; or, alternatively, the roll formed piece may be fastened as the bottom to a separately manufactured utensil by linear pressing.

Abstract: An apparatus for spin forming two partial wheel rims including a mandrel having a first portion for spin forming a first partial wheel rim and second portion for spin forming a second partial wheel rim. The first and second portions of the mandrel have different shapes such that the first and second wheel rims have different shapes. The mandrel is mounted upon a spin forming machine and is utilized to spin form a hoop of metal into a double wheel rim which is split to form the two partial wheel rims.

Abstract: A portable tube cutting and finishing device employs a manual electrically operated power drill supported on a frame and driving a pair of tube drive and support rollers in a cradle arrangement. A tube supported by the rollers is rotated thereby through the operation of a pair of gears respectively associated with the rollers, and a gear train with an initial gear being rotated by on output member and a small universal connector driven by the power drill. The power drill is detachably assembled with the frame and may be used for other purposes. A tool carrier driven by one of the gears in the gear train, is of hollow cylindrical configuration with opposite ends respectively open and closed. Mounted within the closed end of the carrier is a conventional reamer and adjacent thereto a hollow cylindrical burnishing tool serves to lightly machine an external end portion of a freshly cut tube.

Abstract: A branch pipe is formed on a metal tube using a forming tool including a milling part and a burring part adjacent the milling part. The milling part has a first diameter and is provided with a prescribed cutting edge on its outer peripheral surface. The burring part has a sloping surface with a maximum second diameter larger than the first diameter, and has a slope diameter that gradually diminishes in a direction away from the milling part. The branch pipe forming tool can be used for forming a branch pipe on a metal tube regardless of the shape of the metal tube.

Abstract: Apparata and methods are shown and described for converting closed-topped containers, e.g., common aluminum beverage cans and steel food cans, into open-topped containers having open top mouths surrounded by a smooth rounded lip. In a preferred version of the invention, a closed-topped container, e.g., an aluminum can, is inserted within a casing so that its top protrudes outwardly therefrom. A tubular ram having a cutter situated therein is inserted over the can top and rotated with respect to the can to sever the can top from the remainder of the can. The ram is then withdrawn and inverted to reveal an annular bending groove facing the cut upper can sidewall. The ram is then screwed onto the casing to bring the bending groove onto the cut upper can sidewall, thereby bending a rolled lip on the can sidewall. The closed-topped can is thus converted into a cup-like open-topped container.

Abstract: A branch pipe is formed on a metal tube using a forming tool including a milling part and a burring part adjacent the milling part. The milling part has a first diameter and is provided with a prescribed cutting edge on its outer peripheral surface. The burring part has a sloping surface with a maximum second diameter larger than the first diameter, and has a slope diameter that gradually diminishes in a direction away from the milling part. The branch pipe forming tool can be used for forming a branch pipe on a metal tube regardless of the shape of the metal tube.

Abstract: In a method of machining a surface of a bore of an aluminum cylinder block for internal combustion engines, the bore surface is machined to be formed with a number of recesses which are to be formed into oil reservoirs. The bore surface is then pressed uniformly to be plastically deformed so that each recess is narrow at its opening and broad in its inner part. The machining for formation of the recesses and the working for plastic deformation for narrowing the opening are combined together so that the bore surface is machined to have oil reservoir recesses each of which is narrow at its opening and broad at its inner part.

Abstract: For forming or consolidating organic matrix composites, for example, an organic matrix composite panel is sealed between sheets of a susceptor material that is susceptible to induction heating. The susceptor sheets are heated inductively. The sheets in turn conduct heat to the organic matrix composite panel. When heated to the desired temperature, the composite panel is consolidated and/or formed. In the present invention, the susceptor sheets are selected so that their magnetic permeability decreases to unity at approximately the desired operating temperature thereby limiting heating to this "Curie temperature" and providing substantial uniformity of temperature in the panel. Of course, the concept applies to other induction heating operations for metals including SPF, brazing, annealing, heat treating, bonding, hot pressing, and the like.

Abstract: A burring processing method for performing burring processing for a metallic pipe 90 within a short time to provide a beautifully finished appearance. A jig with an inclined section 15 is inserted into the inside of the metallic pipe 90 with a prepared hole 91. After the jig and the metallic pipe 90 are fixed in a state that the inclined section 15 of the jig is aligned with the prepared hole 91, steel balls 41 having a diameter greater than that of the prepared hole 91 are pressed against the inclined section 15 inside the metallic pipe 90 so that the steel ball 41 is pushed from under the prepared hole 91 to the outside of the metallic pipe 90.

Abstract: A hose coupling, ferrule therefor and methods of making the same are provided, the method of making the hose coupling comprising a ferrule having opposed ends and an insert interconnected to one of the ends of the ferrule so that an end of a hose can be inserted into the other end of the ferrule and over the insert to be subsequently clamped between the ferrule and the insert, the method comprising the steps of forming the ferrule from a length of tubular stock that has opposed ends by rotating the stock, inwardly swedging the stock at a predetermined location thereon to define the one end of the ferrule while the stock is rotating, and then cutting off a portion of the stock at a desired location thereon that is spaced inwardly from that one end of the stock to form the ferrule.

Abstract: A method for producing a hard metallic ring body is presented in which a stock material of a ring-shape is roll formed between a pair of inner and outer forming rolls, one of which is provided with a shape change section (shaping roll). Roll forming operations are performed in three fabrication stages; initial, intermediate and final fabrication stages. A gap between the inner and the outer rolls is maintained at all times during the three processing stages. Early in the initial fabrication stage, a depression region is formed in the stock material by engaging with the shape change section of the shaping roll, and this engagement is maintained throughout the fabrication stages. The shaping roll and the forming roll are designed so as to cause the stock material to flow in the axial direction by the radial compression forces between the shaping and forming rolls.

Abstract: A hose coupling, ferrule therefor and methods of making the same are provided, the method of making the hose coupling comprising a ferrule having opposed ends and an insert interconnected to one of the ends of the ferrule so that an end of a hose can be inserted into the other end of the ferrule and over the insert to be subsequently clamped between the ferrule and the insert, the method comprising the steps of forming the ferrule from a length of tubular stock that has opposed ends by rotating the stock, inwardly swedging the stock at a predetermined location thereon to define the one end of the ferrule while the stock is rotating, and then cutting off a portion of the stock at a desired location thereon that is spaced inwardly from that one end of the stock to form the ferrule.

Abstract: A metal sheet is pierced, pressed and drawn to provide a raised cylindrical section having an axis and which section is partly closed by an annular flange. The flange is bent inwardly to enlarge the cylindrical opening by orbiting a tool in engagement with the flange about the axis and rolling the tool along the flange about a second axis offset from the cylindrical axis to enable enlargement and thinning of the flange. Subsequently, a peripherally screw-threaded cylindrical roller of a diameter less than the diameter of the flange is continuously rolled about the flange in orbital relationship with flange cylinder axis until the surface is deformed into a complementary screw configuration.

Abstract: A hose coupling, ferrule therefor and methods of making the same are provided, the method of making the hose coupling comprising a ferrule having opposed ends and an insert interconnected to one of the ends of the ferrule so that an end of a hose can be inserted into the other end of the ferrule and over the insert to be subsequently clamped between the ferrule and the insert, the method comprising the steps of forming the ferrule from a length of tubular stock that has opposed ends by rotating the stock, inwardly swedging the stock at a predetermined location thereon to define the one end of the ferrule while the stock is rotating, and then cutting off a portion of the stock at a desired location thereon that is spaced inwardly from that one end of the stock to form the ferrule.

Abstract: A method of preparing a gear blank for roll-finishing, essentially comprising the step of: while supporting a gear blank with pitch-line chucking, finish-sizing the central axial opening of the gear blank to a desired concentricity to promote accurate subsequent roll-finishing. Also, a method of making roll-finished gears, comprising: (a) preparing a near-net-shape gear blank, with external gear teeth and a central axial opening, by intimately engaging and supporting the gear blank between two opposing roll-finishing gear dies, without teeth finishing pressure; (b) finish-sizing the sides of said axial opening to attain a concentricity between the gear blank's intended tooth pitch circle and said sized sides that is within the range of 0.

Abstract: A method of producing a laminated metal belt with a space corresponding to the thickness of resin between respective ring belts by a step for forming a laminated sheet by bonding the number of metal sheets corresponding to the number of ring belts constituting the laminated metal belts of one unit with resin, a step for forming a seamless cylindrical body having predetermined inside and outside diameters from the laminated sheet, a step for cutting the cylindrical body radially into sections to obtain laminated rings and a step for removing resin from the laminated ring.

Abstract: After machining, the floor of a countersink is chased by means of rollers driven to execute an orbital motion, the angle which the attack surface of the rollers forms with the axis of the opening being progressively reduced as a function of the advance of the roller carrier. Application to the forming of connecting lips around the openings of a nuclear reactor vessel barrel.

Abstract: A process for manufacturing a vehicle wheel includes the steps of preparing a wheel raw material blank in which rim raw material is integrally formed at a peripheral edge of a disk member. The rim portion is formed by spinning the rim raw material while rotating the wheel material about the axis of the disk member. Thereafter, such spin molded raw material is heat treated, and then machined by cutting. The center portion of the rim is spin formed to its final thickness while the rim edge portions are left with a thickness after spin molding that requires machine cutting to the final dimensions.

Abstract: A pair of dies are provided of which die faces are formed with depressions sequentially brought into engagement with a particular portion of a workpiece as the workpiece rolls between the die faces. By compressing the workpiece while driving the same to roll between the die faces, an excess metal of the workpiece is caused to flow into the depressions sequentially for thereby forming an asymmetrical part of the article.

Abstract: A straightening apparatus for metallic bars, rods, wires, tubes and the like is provided which includes a rotor which is adapted for being rotated about a longitudinal axis thereof. At least three rollers are mounted to the rotor body and are clearly rotatable about their respective axis. A bar which is to be straightened passes along the axis of the rotor. The rollers are alternately disposed on either side of the rotor axis so as to sequentially engage the bar to be straightened. The rollers are mounted so as to be pivotal so that the plane of each roller can be pivoted with respect to a plane passing through the axis of the rotor. When the rotor is rotated, the bar to be straightened is urged along the axis of the rotor due to friction between the surface of the rollers and the surface of the bar. At the same time, the rollers straighten the bar.