Abstract: In forming a can body by processing a cup-shaped in-process material with a punch and a die, the die is not heated when the forming process is not carried out, and the die is heated when the forming process is carried out. Therefore, the temperature of the die is adjusted in accordance with the temperature rise of the punch result from the forming process, a clearance between the punch and the die can be maintained, misalignment of the punch and the die can be prevented, and slip and elongation becomes preferable. Therefore, nonuniformity in the wall thickness, breakage of the can body, and breakage of a flange can be suppressed.

Abstract: The invention comprises a method and apparatus for equal channel angular extrusion (ECAE) of flat billets to control material structure and properties. The improvements of the method include the special systems of billet orientations, billet lubrication, billet ejection from dies, and a press/die control system those eliminate surface cracks, flashes and billet reshaping or deburring between passes. Therefore, multi-pass ECAE becomes a cost-effective industrial operation and may be applied to large billets.

Abstract: In the production of an internal contour with an internal arbor acting on the inner wall of a cup-shaped or annular rotationally symmetrical workpiece, expansion and length change of the workpiece are avoided during cold forming. Thus, gear components with internal teeth are produced that have greater symmetry and higher accuracy. A workpiece provided with a press fit on the outside or a prefabricated workpiece is inserted into the die, and during the cold forming is pressed tightly by friction and rotationally fixed with the rotationally driven internal arbor against the inner wall of the die. After completion of the rolling process of the profile, the workpiece is ejected with an axial ram. The internal arbor is provided with outside profiling and is cantilever-mounted and is fed axially and radially during the rolling.

Abstract: A method and apparatus are provided for rolling outer fillets of arcuately offset, split pin bearings on crankshafts with a pair of work rollers, each pair engaging and rolling a respective outer pin fillet. A backup roller is positioned opposite the pair of work rollers. The work rollers may be positioned above and below a centerline of the split pin, preferably about 90° apart. The work rollers can perform identical rolling operations at identical pressure and the work rollers and backup rollers are positioned to keep the adjacent tool heads in parallel planes during these rolling operations. Rolling arms carry the tool heads and stops are provided to keep rear portions of the tool arms in parallel planes against sideways forces. The work rollers and the backup roller may be mounted on the same tool arm and are movable relative to each to clamp or release a pin bearing.

Abstract: A method for straightening an eccentric shaft (100, 501) by engaging fillets (201, 601) adjacent an element (101, 509) of the shaft with angled rollers (303, 703), rotating the shaft and selectively applying a compressive rolling force (301, 709) during only a portion of the rotation into the fillets (201, 601) of the shaft through the rollers (303, 703), which results in straightening the crankshaft (100).

Abstract: A pressing member 44 is pressed from the outside against a peripheral wall of a can shell 4 whose interior is maintained at a predetermined pressure by gas, to form a recess-deformed portion 56 having a predetermined shape on the peripheral wall of the can shell 4. Thereby, three-dimensional patterns can be formed by recess-deforming desired portions of the can shell 4 while preventing the strength of the can shell 4 from being deteriorated and preventing the inner surface of the can shell 4 from being scratched or the coating from being damaged, by which outer shape processing with high design performance can be easily applied to the can shell 4 at a low cost.

Abstract: An apparatus for process control of a burnishing process comprising a body having a first end and a second end, at least one process control coupon, and structure for attaching the process control coupon to the body. At least one edge of the process control coupon is clamped along the entire length thereof during burnishing. A method of process control for burnishing of components comprising selecting at least one process control coupon, selecting an apparatus for holding the process control coupon(s), attaching the process control coupon(s) to the apparatus, selecting a region on the surface of the process control coupon(s) for burnishing, burnishing a patch on the selected region using a burnishing process, and, measuring at least one physical parameter at a selected location of the process control coupon(s) after burnishing.

Abstract: A pulley is made by fixing an edge of an opening of a plate by using a first upper mandrel ring installed at a lower end of a first supporting pin of a first forming device. A supporting block disposed around an upper end of a first spindle is rotated with the first spindle. An inner hub of the pulley is formed by inwardly pressing an upper surface of the plate against a first pressing roller to reduce the thickness of the plate while drawing the plate around a first mandrel ring. The plate is fixed to a second spindle of a second forming device, so the plate rotates with the second spindle. An outer hub is formed by pressing a convex bead toward the inner hub by using a fourth pressing roller and by drawing the outer hub.

Abstract: In a system and method for removing a dent from an automotive vehicle body surface, first and second suction elements are each formed of a flexible disc, a support disc, and a pull stud attached to the support disc. A releasable lever engagement member is provided at an end of the pull stud. Each flexible disc has a vehicle body facing surface which is continuous without air exits. The first and second suction elements are placed on the vehicle surface, with at least one of the suction elements at the dent. A lever bar is inserted through the releasable lever engagement members at ends of the respective pull studs where it is loosely retained.

Abstract: The invention relates to a forging press of the hot-die type with an operating temperature above a temperature T, comprising two dies between two die support elements, a thermal insulation means being placed between each die and its support element. The press is characterized in that the said means comprises at least two superposed layers (A, B), a first layer (A) comprising a first material having mechanical and thermal properties suitable for operation at a temperature above the temperature T, a second layer (B) comprising a second material having mechanical and thermal properties suitable for operating at a temperature below the temperature T, the thermal conductivity of which is lower than that of the first material and is approximately equal to 0.2 W/m·K, with a tolerance of 10%. Thanks to the invention, it is possible to obtain an effective thermal insulation means of small thickness.

Abstract: A device for measuring the roll gap (7) between the working rollers (1a: 1b) of a cold or warm rolling stand for rolling out narrow or wide strips of metal, especially NE metal strips, by means of roll gap sensors (6) whose signals are transmitted to the servo-valves of the compressed oil control as a roll gap setpoint value for the piston cylinder units influencing said roll gap (7), and used to provide a roller gap measurement which is also suitable for such cases involving the lateral progression of said strip. In order to achieve said aim, the position or travel sensor (6) is provided in at least one bending cylinder (5a;5b) for the working cylinder (1a, 1b) for indirect reference measurement of the roll gap via the positively or negatively acting bending cylinders (5a; 5b).

Abstract: A method of head trimming a fastener blank in a cold-forging process comprises placing a fastener blank into a bore of a punch having an end face; supporting an underside of a head portion of the fastener blank with the punch end face; moving a die having an internal passage and a trim plate with a cutting edge toward the fastener blank; shearing the head of the fastener blank with the cutting edge of the trim plate; stopping movement of the die at an extended trim position where the cutting edge lies beyond an underside of the head portion of the fastener blank; ejecting the fastener blank from the punch bore and through the die passage to an opposite side of the die; retracting the die; and removing a scrap ring from around the punch by a stripper sleeve.

Abstract: The invention relates to a forming machine at least provided with a clamping device for clamping a hollow workpiece having at least one open end and a first forming tool which can be placed into contact with the outer surface of the workpiece and with which the workpiece can be deformed. The clamping device can be rotated about a first axis and moved with respect to this first axis. Thus, the forming machine can be of relatively straightforward design and operate at high rotational speeds, even when a tool head equipped with a relatively large number of rollers is being used. The invention further pertains to a method wherein the clamping device can be moved with respect to the said first axis.

Abstract: A metal ring with smaller stress concentration is manufactured, and the manufacture and maintenance of a rolling roller for transferring a mesh-shaped unevenness to the metal ring is facilitated. A mesh-like unevenness 8 is formed to the surface of an inner circumference rolling roller 6. This unevenness 8 is formed by rotating the inner circumference rolling roller 6 at a predetermined speed, and moving a grinder 9 back and forth in the axial direction of the inner circumference rolling roller 6 while biasing the grinder toward the surface of the roller 6 with predetermined force. The grain size of the grinder is between #270 and #1000. When the inner circumferential surface of the metal ring 1 is rolled using the inner circumference rolling roller 6, a mesh-like unevenness 2 is transferred onto the metal ring 1.

Abstract: The invention relates to a deep rolling roller head (1) of a deep rolling tool for deep rolling radii or recesses (22) on the main and lifting bearing journals of crankshafts (21). Said deep rolling roller head is equipped with a housing (2) inside of which one or two laterally interspaced deep rolling rollers (4) are rotationally guided in a loose manner and with little play in two roller cages (5, 6). The roller cages (5, 6) are fastened to supports (15) on the face (3) of the housing (2) oriented toward the crankshaft (21). Said supports support the roller cages (5, 6) on their faces (10) oriented away from the deep rolling rollers (4) while laterally guiding them at the same time. The face (3) of the housing (2) oriented toward the crankshaft (21) is provided, on both ends thereof, with a projection (11, 12) for supporting each of the roller cages (5, 6).

Abstract: An apparatus comprises a rotating member having one or more rollers. The one or more rollers have a plurality of protuberances. The rollers may be advanced toward a surface during rotation of the rotating member, such as toward a bore surface. The protuberances are configured to make a pattern of discrete indentations in the surface upon engagement of the protuberances with the surface. The apparatus is particularly suited for creating oil-retention pockets in the surface of an engine cylinder and other uses. The apparatus may be used to create a pattern of oil-retention pockets or other pockets in a cylinder with varying pocket density in a single pass.

Abstract: The object of the invention is a hot-forming tool (1) having an upper die and a lower die (1a, 1b), the upper as well as the lower die (1a, 1b) each consisting of a base plate (2) having a forming cheek (3) fixed thereto and a core (4) which is also fixed to the base plate (2), and a duct system (5) for the guiding-through of a coolant being constructed between the core (4) and the backside of the forming cheek (3) facing the core (4). In this case, at least the forming cheeks (3) are constructed as cast parts. As a result of this manufacturing method relating to the forming cheeks (2) (3? translator), the manufacturing costs of the hot-forming tool (1) can be significantly lowered because a high-expenditure mechanical cutting machining of the forming cheeks is only still required in the area of the mounting surfaces (3a) as well as the mutually facing exterior sides (3b).

Abstract: A device for changing pairs of work rolls and/or pairs of backup rolls of roll stands, wherein the rolls are each supported in chocks and are movable out or in by a lower back up roll supported on a track and wheels. The work rolls on the drive side of the roll stand can be coupled to a hydraulic piston-cylinder actuator that is dimensioned in is stroke length for the removal or installation distance and can be uncoupled when it has been withdrawn by the required distance. A roll changing frame can be coupled to the actuator and, when the upper backup roll and the roll changing frame are supported on the lower backup roll, the pair of backup rolls can be moved out or back in. The actuator is coupled to a pusher with connecting arms aligned with ends of the rolls. The actuator is arranged on the drive side of the roll stand and is coupled to the pusher through a piston rod.

Abstract: An apparatus for processing a drive shaft (11) for a vehicle, the drive shaft (11) having a longitudinal axis and first and second ends. There is provided a drive arrangement for coupling to the first end of the drive shaft and applying a rotatory force to the drive shaft (11). A second end support arrangement rotationally supports the drive shaft (11) at its second end. Also, a transaxial drive (35) for applying a transverse force in a direction transverse to the longitudinal axis of the drive shaft (11). The transaxial drive includes a transaxially displaceable roller arrangement for communicating with an outer surface of the drive shaft (11) in a region thereof intermediate of the drive arrangement and the support arrangement, via which the transverse force is applied. The transverse force has a magnitude sufficient to cause bending of the drive shaft (11) in the direction transverse to the longitudinal axis thereof as the drive shaft is rotated.

Abstract: A method for producing a bung for a metal cask that does not require a conventional collar and seal, and that simplifies the operations for forming the bung. The method disclosed in the present application includes the following steps. First, a prestamping operation creates a preforming dome in the wall of the cask such that a cuvett is formed. Second, an approximately cylindrical shaft is formed by stamping and thus puncturing the wall of the cask at the location of the bung. Third, the protruding edge of the shaft is folded down the to form an external rolled edge. Fourth, encircling the shaft with a rigid ring constituted by at least two annular sections such that the metal does not tear during the formation of the threads. Finally, the method of the present invention includes the step of implementing a roller threading head to form internal threads in the shaft.