Abstract: A method and apparatus for forming a container component has a fixed stock plate and cut edge mounted on a base at a first level for forming a disk-shaped blank from a strip of sheet material. A blank and draw die is mounted at a second level which forms the disk-shaped blank into a shallow cup upon advancement of a punch assembly through the die. A profile pad is mounted at a third level on the base and imparts a profile on the bottom wall of the shallow cup as the punch assembly continues a downward stroke. An air stream ejects the profiled container component from the press at the third level.

Abstract: A carrierless progressive die system and method for improving part quality and reducing cost. A strip of sheet material advances between a plurality of die stations along a continuous planar surface of a die lifter and stripper pad combination formed or assembled as a single piece. The width of the sheet material is substantially the same as the width of a finished part and its outer edge portions are maintained structurally rigid during operations at the various die operations by providing centrally positioned lances between die stations and holes at the distal ends of the lances which prevent propagation of the lances during stretching and forming of the sheet material.

Abstract: A mounting cup for an aerosol container having radially outward extending dimples on the body portion of the mounting cup and radially inward extending indents in the skirt portion of the mounting cup; both the dimples and the indents being aligned with the longitudinal axis of the mounting cup. In the preferred form of the mounting cup, three aligned dimples and indents are spaced equidistant about the circumference of the body portion and the skirt portion, respectively. Additionally, the method of this invention comprises forming a mounting cup having dimples and indents aligned with the longitudinal axis of the mounting cup, wherein the indents are formed in the last stage of a progressive die stamping operation through displacement of the metal of the mounting cup into a recess in the outer surface of the pilot tool during the formation of the skirt portion of the mounting cup.

Abstract: A method for manufacturing a biopsy forceps cup for an endoscope in which a spoon-shaped forceps cup is formed by drawing a metal plate blank by a press, includes forming a first cut on the metal plate blank, wherein the first cut surrounds a contour of a portion of the metal plate blank defining a forceps cup blank corresponding to the forceps cup, the first cut being discontinued by a plurality of first connection portions; forming a second cut on the metal plate blank, wherein the second cut surrounds the first cut, the second cut being discontinued by a plurality of second connection portions; and carrying out a drawing operation on the metal plate blank while each of the first and second connection portions remain connected with respective neighboring portions defined by each respective the first and second cuts.

Abstract: A stamping die produces gears or other parts having quality tooth forms or the like from smooth edged metal blanks. A lower portion of the die includes a trim punch, whose perimeter shape corresponds to the shape of the desired part, and a vertically movable stripper plate surrounding the trim punch and having a recess for aligning the blank. An upper portion of the stamping die is vertically movable with respect to the lower portion, and includes a trim die. The trim die has a bore disposed therein complementary to the trim punch. A nest plate is affixed to the underside of the trim die, and has a tapered nest opening that aligns with the die bore. A controllably biased shedder passes through the bore and opening. During operation, a blank is first placed in the recess. A press ram subsequently descends, with the blank becoming sandwiched between the shedder and the trim punch, with a portion of the blank to be trimmed being left unsupported.

Abstract: An apparatus for machining a web-shaped workpiece includes a workpiece supply for supplying workpiece rolls each of an elongate thin metal sheet, a processing machine for machining the elongate thin metal sheet into caps, a workpiece feeder for feeding the elongate thin metal sheet to the processing machine, and a product feeder for automatically separating the caps from scrap and feeding the caps to a product collecting mechanism. The apparatus is capable of efficiently and quickly producing various products from the elongate thin metal sheet.

Abstract: A method for manufacturing a metal part and a sheet pressing wheel, in which reduction of their manufacturing cost is intended by enabling them to be formed only by plastic work such as press-work even if they are very small; and a printer in which such wheels are incorporated as a sheet feed mechanism. In the method for manufacturing a metal part, plastic work is given to a metal plate to thereby manufacture the metal part. The method for manufacturing a metal part comprises a first forming step for performing a punching work for roughly forming at least a part of the outline shape of the metal part; a second forming step for giving a face-pressing work to at least an outline edge portion of the metal part to thereby thin the outline edge portion; and a third forming step for shaping the outline shape again by a punching work.

Abstract: For producing stamped parts, especially plates, a method is proposed consisting of only two method steps. In a first method step the workpiece is fine blanked (2) inside a device (1) is then moved to a stamping stage (3) by means of transfer tongs (4) which are likewise housed in the device (1). The stamping stage (3) is also located inside the device (1). In a second method step, the inner and outer contours are stamped on the workpiece (5) in the stamping stage (3) in a manner such that the burrs produced on the workpiece (5) during the first step are removed.

Abstract: Cathode cans for use in air depolarized cells, and cells made with such cans. The side wall is stronger than the bottom wall, and has a smoother outwardly-disposed surface than the respective bottom wall surface. Strength, and thus hardness, of the side wall relates to strength, and thus hardness, of the bottom wall, as hardness of 130-185 relates to hardness of 93-117, on the Vickers scale. Preferred hardness of the side wall is about 130 to 185; and of the bottom wall is about 93 to 117. The side wall is drawn, and an outwardly-disposed surface of the side wall is ironed. As ironed, the surface finish is related to surface finish of the bottom wall, at the same stage, as surface finish RA of less than 2, preferably about 0.5 to about 1.5, microinches, is related to surface finish RA of about 2 to about 5, preferably about 2.5 to about 4.5, microinches. Thickness of the side wall is generally up to about 85 percent as great as thickness of the bottom wall.

Abstract: An apparatus is provided for a plate processing at inclined C-frame presses for an automatic cutting of tin-can covers and lids of tin cans and the like from sheet-metal plates with a piston plunger of a press moving up and down, where the sheet-metal plate is led step-by-step past under the piston plunger of the press. The apparatus includes a u-shape-formed frame 1. The longitudinal traverses 2 are in each case connected through a c-shaped bracing 3 to a C-shaped press frame 4.

Abstract: A method of cutting opposing holes in a side wall of a tubular workpiece and removing the cut out slugs, in which first and second axially aligned punches are applied to opposite side walls of a pressurized workpiece. The second punch has a larger width than the first punch, and reciprocates in a passageway extending laterally from the workpiece. The punches are reciprocated so that the first punch passes through both side walls, and first and second slugs are cut out. The end of the first punch is advanced toward the end of the second punch to capture the cut out slugs between the ends of the first and second punches, and the punches are moved so that the ends of the punches and the slugs captured between them progress along the passageway away from the workpiece. The ends of the punches are separated at a region of the passageway spaced from the workpiece, and the released slugs are removed from the ends of the punches.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with multiple stage tooling which forms a batch of cups from a strip of sheet metal with each stroke of the press. Each tooling stage includes a plurality of annular draw pads each opposing a corresponding annular blank and draw die. An annular cut edge surrounds each of the draw pads, and a corresponding die center punch is located within each of the draw pads. The tooling stages are positioned at predetermined stepped elevations so that they sequentially blank the sheet metal to form a series of circular disk-like blanks between the cut edges and the corresponding blank and draw dies, sequentially hold the blanks between the draw pads and corresponding blank and draw dies, and sequentially draw the blanks into cups with the die center punches extending into the corresponding blank and draw dies.

Abstract: A method for manufacturing a shoe of a swash plate-type refrigerant compressor for vehicle is disclosed. The method comprises a first step, in which a spherical protrusion is made on a first side surface of a plate material by a press operation. The method comprises a second step, in which the spherical protrusion is punched from the plate material to form a shoe intermediate shape. The method further comprises a third step, in which the shoe intermediate shape is forged to form a final shoe shape. The two press operation steps for forming the shoe intermediate shape and punching it from the plate material may be performed by continuously feeding the plate material into a press machine. Thus, shoes having improved dimensional accuracy may be obtained because the necessary amount to be deformed during the forging step is reduced.

Abstract: An apparatus and method for forming a cup (10) having a profiled bottom generally includes a draw die (20) disposed at a first level of a double acting press. The draw die (20) cooperates with a draw pad (22) and a cut edge (24) to form and hold a blank (28) formed from a sheet of material (M). A punch assembly (30) is configured to travel through the draw die (20), thereby drawing the blank (28) over the draw die (20) into a cup (60). The punch assembly (30) transports the cup (60) to a second level of the press where it bottoms out on a die core (50) and a ring pad (51). One element of the punch assembly (30) continues to move beyond the second level of the press, thereby drawing a portion of the cup (60) over the die core (50) and profiling the bottom of the cup (60). The profiled cup (10) is then returned to the second level of the press where it is removed from the punch assembly (30) and transferred. The bottom profile insures that the cup will retain its shape during the transfer operation.

Abstract: The present invention includes an apparatus and a method for transferring and forming parts in a press (20). The press (20) has a plurality of longitudinally dispose workstations (W). A parts transfer system (22) has a grasping unit (69) for releasably grasping or holding matrices (M) of workpieces (WP) and is mounted upon a translation base (68) which is movable between workstations (W). The press (20) simultaneously stamps and forms at least a pair of matrices (M) of workpieces (WP) in a single stroke of the press (20) and the parts transfer system (22) grasps and transfers the matrices (M) of workpieces (WP) between workstations (W). Each matrix has at least two longitudinal spaced columns and two laterally spaced rows of workpieces (WP). Preferably, the grasping unit (69) include matrices of gear boxes (110), interconnected by connecting rods (198), which pivotally support arms (140) and finger assemblies (146) which releasably grasp the workpieces (WP) .

Abstract: A method of manufacturing a frame for cathode ray tubes includes the steps of blanking a workpiece while keeping junctions thereon and punching a transformable area of the workpiece to form pilot holes thereon, piercing the blanked portion into a TV or monitor screen shape, forming the edge of the screen-shape portion such that it bends inward, and drawing the formed portion to be molded into a frame while notching the junctions. The steps are performed in one press simultaneously or sequentially.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with sets of tooling at multiple stages which forms a batch of cups from a strip of sheet metal with each stroke of the press. The tooling stages are positioned at predetermined stepped elevations and are arranged so that they sequentially blank the sheet metal to form a series of nested and out-of-round or contoured blanks. The tooling stages also sequentially hold the blanks and sequentially draw the blanks into cups. The tooling stages are symmetrically positioned with respect to the press center line, and each tooling set may also include a bottom panel punch surrounded by a pressure sleeve for sequentially forming a preform boss within the bottom wall of each cup.

Abstract: A pressure-receiving plate for a friction device includes an annular portion and pawls formed integrally on the inner or outer periphery of the annular portion. The annular portion has one side provided with a friction surface which contacts a friction disk engaged with one of a driving member and a driven member, and another side provided with reduced-thickness portions formed by applying crushing work that takes hardness and surface roughness of the friction surface into consideration. The pawls are engaged with the other of the driving member and driven member.

Abstract: Disclosed is a blanking method according to which, when producing a part by blanking from a plate material, a forming process consisting of coining is performed on the upper and lower surfaces of that portion of the plate material which becomes a scrap after the blanking. By the energy needed for this coining, the strain energy accumulated in the press as a result of the blanking of the part is absorbed. In this method, the breakthrough generated when producing parts by blanking with a press and a die can be mitigated or eliminated.

Abstract: A method and apparatus for piercing a pair of aligned holes through both sides of a tube combined with the process of hydroforming the tube to final shape. After the tube is expanded and internally pressurized between upper and lower dies, a punch is driven forcefully through a cross passage in the die and through both walls of the tube, one after the other. The end of the punch is bored out sufficiently to leave a sharp edge that cuts a first slug, and the first slug is wedged into the end of the punch. The opposed wall of the tube is backed by a female die button with a cylindrical cutting edge concentric to, and equal in diameter to, the end of the punch. The end of the punch enters the die button to cleanly shear out a second hole, pushing a stack of two slugs into the die button. A pressure feed orifice properly located enters the still pressurized tube at this point, feeding positive pressure to the punch bore to blow the slugs off and out of the die button.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with multiple stage tooling which forms a batch of cups from a strip of sheet metal with each stroke of the press. Each tooling stage includes a plurality of annular draw pads each opposing a corresponding annular blank and draw die. An annular cut edge surrounds each of the draw pads, and a corresponding die center punch is located within each of the draw pads. The tooling stages are positioned at predetermined stepped elevations so that they sequentially blank the sheet metal to form a series of circular disk-like blanks between the cut edges and the corresponding blank and draw dies, sequentially hold the blanks between the draw pads and corresponding blank and draw dies, and sequentially draw the blanks into cups with the die center punches extending into the corresponding blank and draw dies.

Abstract: Apparatus and method for forming cup-shaped metal container bodies or end shells from a metal blank in a double-acting press having inner and outer rams which operate in a timed relationship. A plurality of blank and draw dies are mounted on a fixed base in opposed relationship to a plurality of draw horns mounted on the inner ram and movable toward the base. A corresponding member of cutting dies and draw pads are mounted on the outer ram and are movable toward the base, whereby the cutting dies cut blank disks from the sheet and the draw pads clamp the disks against the blank and draw dies, followed by the drawing of the container bodies or end shells by the draw horns.

Abstract: Apparatus and method for forming cup-shaped metal container bodies or end shells from a metal blank in a double-acting press having inner and outer rams which operate in a timed relationship. Preferably, a plurality of blank and draw dies are mounted on a fixed base in opposed relationship to a plurality of draw horns mounted on the inner ram and movable toward the base. A corresponding member of cutting dies and draw pads are mounted on the outer ram and are movable toward the base, whereby the cutting dies cut blank disks from the sheet and the draw pads clamp the disks against the blank and draw dies, followed by the drawing of the container bodies or end shells by the draw horns. A plurality of stacked pressure-actuated pistons is carried by each of the outer rams and moves the draw pad into clamping engagement with the periphery of the blank disk.

Abstract: A method and a machine for producing plate components (1) from a sheet of metal (2) which is moved through a press (13) for at least a first cutting operation to be performed to separate the plate components from the sheet of metal and a second cutting operation to separate scrap (27), said press being open with a space (32) allowing free insertion of the metal sheet. According to the invention the metal sheet is displaced by means of a feeding device (11) between the metal working operations, following a predetermined coordinate pattern and being machined in consecutive y-sections (24, 26) each y-section (24) being fully machined in x-direction before the immediately following y-section (26) is brought into position for machining, the metal sheet being machined within surface areas (33), each of which has a length in x-direction of at most 30 cm, and is larger than the plate component so that a peripheral, unbroken scrap portion (27) remains after the first cutting operation.

Abstract: The present invention includes an apparatus and a method for transferring and forming parts in a press (20). The press (20) has a plurality of longitudinally disposed workstations (W). A parts transfer system (22) has a grasping unit (69) for releasably grasping or holding matrices (M) of workpieces (WP) and is mounted upon a translation base (68) which is movable between workstations (W). The press (20) simultaneously stamps and forms at least a pair of matrices (M) of workpieces (WP) in a single stroke of the press (20) and the parts transfer system (22) grasps and transfers the matrices (M) of workpieces (WP) between workstations (W). Each matrix has at least two longitudinal spaced columns and two laterally spaced rows of workpieces (WP). Preferably, the grasping unit (69) include matrices of gear boxes (110), interconnected by connecting rods (198), which pivotally support arms (140) and finger assemblies (146) which releasably grasp the workpieces (WP).

Abstract: A press progressive die for a metallic gasket a convex beading die 3 for forming a convex bead 10b surrounding a seal part is disposed between a piercing die 2 for a metallic plate and an external shape blanking die 4, characterized in that a plurality of slits 6 having a predetermined width corresponding to a width of a convex member 18 is bored in spaced relation on the convex beading die 3 on the female side along the pressing line opposite to a convex member 18 on the male side provided to press and mold said convex bead 10b on a metallic plate which has been subjected to predetermined piercing by mean of said piercing die 2 and progressively fed, and connecting grooves 7 having a depth required to mold a bead by said convex member 18 is bored in the same width as that of the slit 6 between the slits 6. (FIG.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with multiple stage tooling which forms a batch of cups from a strip of sheet metal with each stroke of the press. Each tooling stage includes a plurality of annular draw pads each opposing a corresponding annular blank and draw die. An annular cut edge surrounds each of the draw pads, and a corresponding die center punch is located within each of the draw pads. The tooling stages are positioned at predetermined stepped elevations so that they sequentially blank the sheet metal to form a series of circular disk-like blanks between the cut edges and the corresponding blank and draw dies, sequentially hold the blanks between the draw pads and corresponding blank and draw dies, and sequentially draw the blanks into cups with the die center punches extending into the corresponding blank and draw dies. The tooling stages are symmetrically positioned with respect to the press center line.

Abstract: The method of making a paper clip to secure a plurality of sheets of paper together which are located in a stacked relationship. The paper clip produced by the method of this invention comprises a rigid sheet material metallic or composite body which is bendable and when bent, remains in the bent position. The method includes placing the overall configuration of the paper clip on the exterior planar surface of a thin sheet of metal or composite with the configuration of the paper clip including a pair of spaced-apart, normally triangularly shaped wings. Severing the exterior edges of the wings from the sheet of metal. Partially deflecting of the wings from the sheet of metal to a canted position relative to the sheet of metal and with the further possibility of deflecting of the wings by forcing the wings to a side by side relationship with the remaining body of the paper clip. Severing the remaining exterior edge of the paper clip and removing of the paper clip from the sheet of metal.

Abstract: A sheet of metal is blanked by an annular blank die to form a disk, and a peripheral portion of the disk is gripped between the blank die and a lower pressure sleeve. The peripheral portion is shifted downwardly relative to a center portion of the disk to start the forming of a center panel within the disk between an annular nose portion of a die center and a high pressure panel punch having a small panel radius and a small clearance therebetween, preferably less than metal thickness. The peripheral portion is also gripped between a lower die core ring and an upper pressure sleeve which cooperate to form a crown and a depending lip. The center panel is shifted downwardly by the die center against the pressure of the panel punch for forming an inwardly bowed chuckwall against the die core ring and to start a countersink by wrapping the metal around the nose portion of the die center.

Abstract: The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with multiple stage tooling which forms a batch of cups from a strip of sheet metal with each stroke of the press. Each tooling stage includes a plurality of annular draw pads each opposing a corresponding annular blank and draw die. An annular cut edge surrounds each of the draw pads, and a corresponding die center punch is located within each of the draw pads. The tooling stages are positioned at predetermined stepped elevations so that they sequentially blank the sheet metal to form a series of circular disk-like blanks between the cut edges and the corresponding blank and draw dies, sequentially hold the blanks between the draw pads and corresponding blank and draw dies, and sequentially draw the blanks into cups with the die center punches extending into the corresponding blank and draw dies. The tooling stages are symmetrically positioned with respect to the press center line.

Abstract: The present invention includes an apparatus and a method for transferring and forming parts in a press (20). The press (20) has a plurality of longitudinally disposed workstations (W). A parts transfer system (22) has a grasping unit (69) for releasably grasping or holding matrices (M) of workpieces (WP) and is mounted upon a translation base (68) which is movable between workstations (W). The press (20) simultaneously stamps and forms at least a pair of matrices (M) of workpieces (WP) in a single stroke of the press (20) and the parts transfer system (22) grasps and transfers the matrices (M) of workpieces (WP) between workstations (W). Each matrix has at least two longitudinal spaced columns and two laterally spaced rows of workpieces (WP). Preferably, the grasping unit (69) include matrices of gear boxes (110), interconnected by connecting rods (198), which pivotally support arms (140) and finger assemblies (146) which releasably grasp the workpieces (WP).

Abstract: A sheet of metal is blanked by an annular blank die to form a disk, and a peripheral portion of the disk is gripped between the blank die and a lower pressure sleeve. The peripheral portion is shifted downwardly relative to a center portion of the disk to start the forming of a center panel within the disk between an annular nose portion of a die center and a high pressure panel punch having a small panel radius and a small clearance therebetween. The peripheral portion is also gripped between a lower die core ring and an upper pressure sleeve which cooperate to form a crown and a depending lip. The center panel is shifted downwardly by the die center against the pressure of the panel punch for forming an inwardly bowed chuckwall against the die core ring and to start a countersink by wrapping the metal around the nose portion of the die center.

Abstract: The present invention involves a method for forming a one-piece band clamp. The band clamp is made by severing band material to a proper width, forming the band material to a desired length, removing a portion of the band to form a void in one end of the band material, inserting a deformation device into the void, and deforming the band material adjacent to the void to form a slot in the band material sufficiently wide to allow insertion of the band body.

Abstract: The present invention provides a method of manufacturing a shutter to be slidably put on a protective envelope for containing a flexible disk. The method comprises cambering a flat metal strip, punching-out a blank having a shape corresponding to the development of the shutter from the cambered metal strip, and folding the blank along folding lines perpendicular to the cambered edges of the blank in a substantially U-shape. The shutter thus manufactured has opposite side walls cambered away from each other, and an end wall connecting the opposite side walls.

Abstract: A progressive bead forming metal die for forming beads in a metal gasket is constituted by a bead-forming die disposed between a hole punch die and an outer profile punch die. The bead-forming die comprises a pair of upper and lower inner bead boundary base blocks supported by upper and lower holders for pressing a desired bead shape and inner-bead flat sections, a stripper disposed so as to slide along the outer surface of the upper inner bead boundary base block, a die secured in contact with the other surface of the inner bead boundary base block and disposed facing the stripper, a stopper disposed between the stripper and the upper holder to press-form an out-bead flat section between and by the stripper and the die when the upper and lower inner bead boundary base blocks are brought into press contact with each other, and an elastic member for urging the stripper toward the die.

Abstract: A chamfering pressing machine including a blanking-chamfering section having a die, in which the die has a shearing die section, a chamfering die section and a guide section, a punch for shearing a sheet of material to form a product, the sheet of material being placed on said blanking-chamfering section, and a cushioning pad received in said die capable of an upward and downward movement so as to support said product.

Abstract: An outside ring manufacturing method comprises a first step of blanking out from a metal sheet a blank with a circular body portion and tongue portions which protrude at several places from the outer peripheral edge of this body portion, a second step of press forming the blank so that the body portion is formed into a tapered cylinder portion which tapers off or decreases in diameter with the distance away from the tongue portions and so that the tongue portions are made parallel to an axis of the tapered cylinder portion, a third step of adjusting the geometry of each part to a predetermined geometry through the machining of an end surface of the tapered cylinder portion and the tongue portions, and a fourth step of heat treatment to achieve a desired hardness.

Abstract: A method of blanking workparts includes advancing the strip 26, 126 in a zig-zag fashion to a stationary blanking station 14, 114 disposed along axis A from which successive workparts are blanked from the strip 26, 126 and transferred along the axis A to successive forming stations 16, 18, 20, 22 by a transfer mechanism 28.

Abstract: A method and apparatus are disclosed for making and transferring shells for cans within a ram press. The shells are formed in a two-step operation in which shell preforms are formed at a first station within the press and then transferred to second station where they are formed into completed shells. The first station includes first and second rows of tooling sets with the tooling sets of the first row being located in alternating transverse positions relative to the tooling sets of the second row. Similarly, the second station includes third and fourth rows of tooling sets in which the tooling set of the third row are located in alternating transverse positions relative to the tooling sets of the fourth row, and the tooling sets of the third and fourth rows are located for receiving the shell preforms from the tooling sets of the second and first rows, respectively.

Abstract: A method and apparatus are disclosed for making and transferring shells for cans within a ram press. The shells are formed in a two-step operation in which shell preforms are formed at a first station within the press and then transferred to second station where they are formed into completed shells. The first station includes first and second rows of tooling sets with the tooling sets of the first row being located in alternating transverse positions relative to the tooling sets of the second row. Similarly, the second station includes third and fourth rows of tooling sets in which the tooling set of the third row are located in alternating transverse positions relative to the tooling sets of the fourth row, and the tooling sets of the third and fourth rows are located for receiving the shell preforms from the tooling sets of the second and first rows, respectively.

Abstract: A case (1) for single- or multi-stage pumps having at least one centrifugal radial impeller, and a method for the manufacture of such case with metal plate. The case includes, for each stage and for each impeller, a substantially cylindrical lateral wall (2) and a device (15) for diffusing and directing the flow delivered from the impeller of each stage, which case has, in the lateral wall thereof, at least one volute with a uniformly increasing transverse cross section which is outwardly closed and is formed by an initial portion (17), an intermediate portion (18) and a final portion (19) which are mutually blended in a continuous manner.

Abstract: A method of forming a container body having a profiled bottom in a continuous operation wherein the body is formed from a blank of material into an inverted cup, the cup is reverse drawn and a preliminary profile is imparted to the bottom of the cup, and a final profile is imparted. The apparatus includes a die cut edge movable into telescoping relationship around a redraw die to form the inverted cup and a profile punch movable into telescoping relationship within the redraw die to form the preliminary profile against a profile pad. The profile pad is selectively supported by a pair of fluidly actuated pistons whereby, upon activation of the second piston, the final profile may be formed.

Abstract: A progressive die apparatus and method for cold forming weld adapters. A progressive die apparatus, preferably having at least four working stations and several idle stations, is used to form, weld adapters from rectangular bar stock having a thickness of at least about 3/8 inch. Plain-carbon steel bar stock material or other weldable metal material is successively fed through the progressive die apparatus, which is preferably installed in a knuckle-joint power press.

Abstract: In a progressive die for punch press operations in which a strip of material is fed into the press and sequential operations are conducted on the strip including the separation of parts from the strip. The die is provided with a construction which forms an integral carrier tab between the parts to be separated. In the embodiment ilustrated, the operation is the manufacture of rotor and stator laminations for a dynamoelectric machine. The strip of material is fed into the press in which the die is mounted, and the respective rotor and stator laminations are formed in a series of workstations within the die. The improvement in the die construction is a punch station for substantially but not completely separating the rotor lamination from the strip. Thereafter, additional operations are constructed on the strip, the rotor lamination being completely separated at a subsequent workstation.

Abstract: A method of forming container end panels from a sheet of material includes inserting the material into a press at a first level, blanking the material at that level, passing the material through a die and preliminarily forming it in a continuous stroke but at a second level and transferring it laterally at the second level for reforming and curling. The apparatus includes blanking and forming tooling at a first station and reforming and curling tooling at second and third stations. The reforming and curling tooling is disposed at the second level and the first, second and third stations are interconnected by an endless, apertured belt also disposed at the second level. An alternative embodiment involves disposing the first station tooling at an angle with respect to the press centerline, feeding the material into the press in a first direction and moving the preliminarily formed ends in opposite directions normal to the feed direction to second and third stations disposed on opposite ends of the press.

Abstract: A sheet of metal is blanked by an annular die to form a disk, and a peripheral portion of the disk is gripped between the blank die and a lower pressure sleeve. The peripheral portion is shifted downwardly relative to a center portion of the disk engaged by a center panel punch to form a center panel portion and a panel wall portion connected by a generally frusto-conical inverted chuck wall portion to the peripheral wall portion. The center panel portion and the panel wall portion are engaged by a die center having a projecting lip with a small countersink radius. An inner part of the peripheral wall portion is gripped between a die core ring and an upper pressure sleeve to define a crown portion, and an outer part of the peripheral portion of the disk is formed by the blank die and the die core ring into a depending lip portion.

Abstract: This relates to special tooling for forming metal end units for use in conjunction with cans for carbonated beverages and the like wherein the formed end unit is provided with an integral reinforcement in the form of a countersink so as to increase the buckle strength of such an end unit when it is formed of thin metal. Previously there has been developed tooling for forming such an end unit which, while it is commercially satisfactory, did not produce end units having the required buckle resistance. That tooling has been modified by changing the configuration of a punch core so as to eliminate a previously formed cylindrical extension of the end unit chuck wall and a countersink starter. The punch core cooperates with a die core to clamp a center panel of a formed end unit shell so as to move the center panel reversely of its forming direction and to effect a folding of an outer peripheral portion of the center panel in a lower part of the previously formed chuck wall into the required countersink.

Abstract: A pressing tool including means for cutting a blank from a strip fed longitudinally into the tool. The cutting means comprise a stationary lower punch carried by a press table and a vertically mobile upper die normally located above the punch and intended to be moved in the direction of this punch by the mobile press slide. Means are provided for cutting the end scrap from the strip, these means comprising shears having a stationary blade and a mobile blade, a device for transfer of a cut blank, prestamped blank, or stamped blank, from the station which the blank occupies to the following station, and means to lift each cut blank to the level of the transfer device. The stationary blade is carried by the support of the punch while the mobile blade is carried by the die.

Abstract: A method of forming container end panels from a sheet of material includes inserting the material into a press at a first level, banking the material at that level, passing the material through a die and preliminarily forming it in a continuous stroke but at a second level and transferring it laterally at the second level for reforming and curling. The apparatus includes blanking and forming tooling at a first station and reforming and curling tooling at second and third stations. The reforming and curling tooling is disposed at the second level and the first, second and third stations are interconnected by an endless, apertured belt also disposed at the second level.

Abstract: A method for manufacturing a rotor frame of an electromagnetic clutch is disclosed. A rotor frame is manufactured using press machines in a sequential process of: (1) forming a blank which has the shape of a regular polygon; (2) forming a bulge in one side of the blank; (3) making a hole in the center of the bulge; and (4) bending the walls of the bulge and the blank edges into projections that can be machined to provide appropriately shaped end surfaces for use as a rotor frame.