Abstract: A flange sleeve comprising at lest one flange formed thereon, having no gap at the joint or having a controllably adjusted width of the gap at the joint. The flange has two crowding recesses at least in the metal coating thereof in at least two points distributed over the flange in the direction of the periphery. According to the method for producing the flange sleeves, the edge of the flange is bent. At least two crowding recesses in at least two points distributed over the flange in the direction of the periphery are made at least in the metal coating thereof, the recesses preferably being made by bending the edge of the sleeve. The invention also relates to a bending tool and a bending device.

Abstract: A notching, shearing, and hemming tool constructed with a table which receives the roofing panel, at least two notching devices (notchers), a pan shear pivotally mounted on the table, and a hemming tool pivotally mounted on the table. To prepare a finished end piece of roofing panel, the roofing panel is placed in a panel alignment section at a first end of the tool. Each of the notching devices is movable, so that the relative position of the two notchers is variable. After notching, the roofing panel is moved to the pan shear, which is set at the proper angle by movement of a lever mechanism connected to the notchers. The roofing panel is sheared along a center line of the notched area. This cut leaves a tongue of the flat pan of the roofing panel exposed on each cut piece. Following the shearing operation, the user is left with two cut panels, each having an exposed tongue section an inch-and-a-half long extending from the pan section.

Abstract: Devices are provided for detecting a mutual reference position of tool parts of a pressing tool, e.g., a punch and die. The device include (a) first and second reference elements that are moveable, by the pressing device, into a relative position that corresponds to a predetermined relative position of the first tool part and the second tool part as mounted in the mountings; (b) a control pressure generator that generates a control pressure when the first and second reference elements are moved into the relative position; (c) a switch that is activated by the control pressure; and (d) a detection unit that is activated by activation of the switch to detect the relative position of the first and second reference elements.

Abstract: A method of creating a cobalt chronic femoral knee component includes the steps of: providing a forging press including first and second bust forging die parts spaced apart from each other and movable toward each other, the first and second bust forging die parts including respective femoral knee component shaped cavities; placing a cobalt chrome ingot heated to a temperature of between about 2050° F. and about 2300° F. between the first and second bust forging die parts in alignment with the femoral knee component shaped cavities; and bringing the first and second bust forging dies parts together in a bust blow against the cobalt chronic ingot under a pressure between about 1500 tons and 2000 tons creating a femoral knee bust forging.

Abstract: A method of manufacturing a steering rack bar (6) by forging, the method comprising the steps of pacing a heated cylindrical rack bar (6) in a first forging die (15) and forging a first toothed protion (37) at one end thereof; removing the rack bar; heating the rack bar at or near the other end of said rack; and placing the other end of the rack bar in a second forging die and forging a second toothed portion (39) wherein, prior to forging the second toothed portion, the rack bar is axially and angularly aligned to a predetermined axial location and angularly orientated utilising the first toothed portion or features at or near the one end of the rack bar as a datum, and placed and held in the predetermined axial location and angular orientation prior to forging of the second toothed portion.

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: The invention provides a mechanical press apparatus for both single and double uses which can press mold a large-sized blank at a high pressure by employing a single action use aspect while being of a double action type. In a mechanical press apparatus provided with a drive portion (14) which moves upward and downward an outer slide (8) and an inner slide (9) arranged in an inner side of the outer slide at a predetermined timing, an elevating plate (10) is fixed to a lower end surface of the outer slide (8) so as to oppose to a lower surface of the inner slide (9), and the lower surface is provided with an upper die (7) and a lower die (3) positioned at a lower surface thereof so as to press. Further, an upper surface portion of the elevating plate (10) is provided with a first hydraulic cylinder (11) contracted by a pressing force at a time when the inner slide (9) moves downward.

Abstract: Work hardened sheets of formable metal are annealed by thermal conduction and heated to a forming temperature. In a preferred embodiment, the sheet is placed on a flat surface of a heated lower platen to partially heat and soften the sheet and an opposing heated upper platen is brought close enough to the sheet to contribute heat but not to constrain the sheet as it expands. The platens are then both brought close to the sheet to heat it to its forming temperature largely by thermal conduction.

Abstract: Apparatus for hot gas blow-forming including opposed heated and insulated tool containers, each including a tool heater plate that is adapted for attachment to a platen of a press with one or more load bearing spacers interposed between the tool heater plate and the platen. Each tool container also includes an insulation enclosure having a base portion that is interposed between the tool heater plate and the platen and further having perimeter wall portion that surrounds the tool heater plate. A perimeter seal is preferably attached to at least one of the heated and insulated tool containers and is adapted for sealing engagement with the other of the heated and insulated tool containers.

Abstract: A method and apparatus for being hollow work pieces has a pressurizing arrangement that allows the pressure to be adjusted in an internal cavity defined within the work pieces between subsequent bending operations on any one work piece. The internal cavity is defined by sealing caps that are secured to the ends of the work piece.

Abstract: A press forming machine comprising driving shafts for pressing three or more respective pressure points and displacement measuring means for measuring a displacement close to the pressure point. A central driving shaft among the driving shafts has a gap (the slack) larger than those of other driving shafts between each of the driving shafts and a pressure plate. During press formation at a trial stage, a positional displacement close to each pressure point is measured by the displacement measuring means and control data is supplied to each driving source for driving a driving shaft to drive the pressure plate. Then, production press-formation is performed in accordance with the above result. Therefore, the central driving source can avoid overload by the slack of the driving shaft with the pressure plate.

Abstract: A reaction device for forming equipment includes a housing having a mount adapted to be connected to a forming die and a casing carried by the mount. A lift rod is disposed at least partially on the housing for movement relative to the house between extended and retracted positions. The lift rod has a first end disposed in the housing, a second end and a passage extending through the lift rod between its ends. An adapter is connected to the lift rod within the passage and is adapted to be coupled to a lift bar of the forming equipment. A biasing member is disposed between the lift rod and the housing to yieldably bias the lift rod to its extended position.

Abstract: A clamping assembly for use with a bend arm of a tube bending machine. The assembly comprises a force multiplier linkage that applies a controlled and variable force to a workpiece. In one embodiment, the force multiplier linkage comprises a bearing member pivoted by an actuator acting on one end of a force multiplier arm that is attached to the bearing member. A pivot member supporting a drive link is fixedly attached to the bearing member at a location offset from the bearing member's pivot axis. The drive link pivots about the pivot member axis so that in cooperation with additional links it moves a bend arm slider. The drive link also pivots about the bearing member axis. As the bearing member is pivoted about its axis by the force multiplier arm, the drive link also pivots about the bearing member's axis providing the required force for application to the workpiece.

Abstract: A burring device is provided which can efficiently perform continuous burring. The burring device has a work holder which has a burring hole and which holds a work object, a pusher rod which rotatably supports the base end of a metal core which has a processing part on the tip end thereof, and a guide rod which is positioned to the front of the extended axis of the pusher rod and which has a guide surface on the tip end thereof which guides the tip end of the metal core towards the burring hole of the holder.

Abstract: A press tool for pressing a receiving part of a fitting onto a pipe is provided. The press tool includes two elastically-deformable press elements, each having a first end, a pressing region, assigned to the sealing section, having an inner shape that at least partially departs from a constant curvature in a circumferential direction, and a second end having a force input region and a stop surface. A hinge couples the press elements together at the first end of each press element. When the press tool is closed, the stop surfaces of the press elements abut one another, and when the press tool is closed and a pressing force is applied to the force input regions of the press elements, the press elements elastically deform such that the inner shapes of the pressing regions are substantially constantly curved in the circumferential direction.

Abstract: An apparatus and method for forming a shell with a central panel connected to a chuckwall with a z-fold located between the central panel and the chuckwall is provided. The apparatus and method of the invention is characterized by forming the z-fold in a downstroke of the press and supporting the z-fold in an upstroke of the press. The apparatus and method take place in a triple action die contained within a shell press. The apparatus and method can also be employed in a single action press or a double action press.

Abstract: A guide support for a tube bending machine comprising a base frame, a bending head, a bending arm, a bending roller, a locking jaw, sliding means for the displacement of the bending head in horizontal and vertical directions with respect to the base frame, at least two guides carried on an element and including recesses arranged in opposite directions with respect to the tube, guiding means for the element on the bending head, the guide element being guided in a horizontal translation motion on a plate securely fastened to the bending head, the guiding means being positioned adjacent a first surface of the element, and the at least two guides being arranged parallel to each other adjacent a second, opposite surface of the element. As a result of the guide support, either clockwise or counterclockwise bending can be effectuated on the same tube bending machine.

Abstract: A cold forging apparatus for forming complex shapes at a single station includes a first multiple function punch assembly having an inner and outer punch. A third punch or a second multiple function punch assembly is provided in a confronting relationship with the first multiple function punch assembly. A conveyor conveys a metal work piece from a supply source to a loading/unloading area between the first multiple function punch assembly and the third punch or second multiple function punch assembly. The conveyor includes a pivot assembly, a moveable J-shaped robot arm having an end effector fixed to one end thereof to rotate about the pivot assembly. A servo actuator and crank arm connected to one end thereof rotate the robot arm and end effector to convey a metal work piece from a supply source to a loading/unloading position and for conveying a forged product from the loading/unloading position to a storage area.

Abstract: In a laser shock peening process, the shape of the spot generated by the laser beam is changed on the fly. This is achieved, for example, by a masking device which is movable into and out of the path of the laser beam. Laser shock peening spots can consequently be shaped so as to avoid the spots overlapping an edge of the workpiece, or any other feature which may be damaged by the laser energy.

Abstract: A vise for clamping an elongated workpiece to be bent on a die (2) of a bending machine includes a movable jaw (35), provided with a clamping portion (51) approachable to and removable from the circumferential groove (4) of the die (2). The movable jaw (35) has a pivoting end (7) and a retaining end (8) opposite to the pivoting end (7). The pivoting end (7) is rigidly connected to a spindle (9) rotatable about an axis (X) at right-angles to the rotation axis (Y) of the die (2), so that the clamping portion (51) of the movable jaw (35) is displaced by an operating device (90) from an opened position, far from the elongated workpiece to be bent, to a closed position in which the clamping portion (51) mates with the elongated workpiece. A retaining device (28) is able to grip the retaining end (8) of the movable jaw (35) and to maintain the movable jaw (35) in its closed position.