Abstract: A quick-release apparatus for use with slide hammers includes a shaft adapter portion which is threaded onto the slide hammer shaft and at least one tool adapter portion which is threaded onto the hook or tool to be used. The shaft adapter portion and tool adapter portion are mechanically engaged and disengaged by pulling down on the locking collar on the shaft adapter portion and turning the tool adapter portion ninety degrees, then sliding the tool adapter portion off the shaft adapter. The same or different tool can then be installed by aligning the shaft adapter lugs with the slots on the tool adapter and pushing the tool adapter on, then turning the tool adapter ninety degrees until the positioning lugs on the locking collar engage.

Abstract: A die for reducing the formation of flash on parts includes a first die section and a second die section defining therein a cavity. The first die section includes a pair of first surfaces and the second die section includes a pair of second surfaces which together define a pair of parting lines which extend from opposite sides of the cavity. Desirably, the first die section includes a pair of lands, each extending along the length of one of the parting lines. Each land defines a first surface portion of the first surface and is sized and configured so that the land is elastically loaded, e.g., substantially equal to and less than the elastic limit of the material forming land when forming a part.

Abstract: A clip disk assembly according to the invention includes an adapter hub which attaches to the motor of an existing crimping machine and a plurality of clip disks, each being removably attachable to the adapter hub. Each clip disk is provided with a different sized peripheral notches to accommodate a different sized eyelet. According to the presently preferred embodiment, the adapter hub has four threaded peripheral studs and the clip disks have four corresponding holes. Four wing nuts are used to removably attach the clip disks to the adapter hub. Preferably, one stud has a larger boss than the others and one hole in the clip disks is correspondingly larger. The assembly permits changing of clip disks in about one minute.

Abstract: A tube expanding bullet is inserted into and expands a heat exchanger tube which has been pierced through collared fin holes of piled heat exchanging fins, so as to expand the fin holes and integrate the tube with the heat exchanging fins. The tube expanding bullet has a first part formed at a front part of the tube expanding bullet and a second part formed at a rear part of the tube expanding bullet whose maximum outer diameter is greater than that of the first part. The fin holes are firstly expanded by passing the first part of the bullet through the tube. The fin hole is secondly expanded by passing the second part of the bullet through the tube. A first rate of expansion of the fin hole by the first part of the tube expanding bullet is less than a second rate of expansion of the fin hole by the second part of the bullet.

Abstract: A riveting tool having a generally cylindrical tool head with a front face for engaging the rivet head is modified by the addition of a sheath engaged over the tool head which is integrally molded from a plastics material. The sheath has a generally cylindrical sleeve portion engaged over a part of the cylindrical portion of the tool head and a front portion shaped to substantially fully cover and match the front face of the tool head. The sheath is shaped to provide a readily removable and replaceable friction fit on the tool head and has a thickness at the front portion which is sufficiently thin to allow forces to be communicated from the tool head to the rivet head to effect driving of the rivet for attachment of the rivet to a material to be riveted and which is sufficiently thick to inhibit marring of the rivet and the material adjacent the rivet.

Abstract: A modular tooling system for use in combination with a conversion press has an upper base member adapted to be removably mounting into the conversion press, a tooling holder, a tooling insert and means for retaining the tooling insert within the tooling holder. The tooling holder is adapted for attachment to the upper base member. The tooling holder defines a chamber therein extending therethrough. The chamber includes a shoulder portion. The tooling insert is adapted to be removably mounted in the tool holder. The insert has a first end, a second end, and a shoulder portion adapted to cooperate with the tooling holder shoulder portion. Bushings and spacers secure the insert within the tooling holder. Both the tooling holder chamber and the tooling insert are of a predetermined cross section which are adapted to correspond with each other and define a keyed relationship.

Abstract: An improved method of forging a piston and a forging die therefor. The forging die is formed from a pair of pieces which form an area where the forged material is extruded into. These pieces merge at a parting line that passes through the center of the outer edge of the forged material so as to afford some relative movement between the die pieces to avoid cracking and also to permit air to escape. Some small flash or parting line may be present in the finished material which is not objectionable and permits the attainment of the higher strength and better wear resistant piston.

Abstract: The movable blank-holder of a bending press includes a series of segments and a pair of motor-driven carriages each of which has an entraining member which can selectively engage and release the segments in order to move them for re-arrangement purposes. Each of two segments situated at opposite ends of the series includes a shoe-holder which supports a respective shoe by means of inclined guides. Each shoe-holder body carries a respective slide having a driving portion and each shoe has a driven portion. These driving and driven portions have facing cooperating pressure and sliding faces arranged in a manner such that a movement of the slide towards the center of the press is converted into an oblique movement of the respective shoe such that it is released from a lateral channel-shaped bend already formed in a metal sheet, without sliding on the sheet.

Abstract: An apparatus for expanding a tube 1 from a first diameter d.sub.1 to a second diameter d.sub.2 by passing a mandrel through a tube 1 includes a bullet assembly 3 comprising at least two co-operating bullet segments 5, 7, 9, Each of the bullet segments 5, 7, 9 has an outer surface 11 for contacting the inner surface of the tube and an inner surface 13 for contacting the inner surface of an adjacent bullet segment. The outer surface 11 of each segment is generally arcuate in radial cross-section and each segment has a body region 15 between a head 17 and tail region 19. The inner surfaces 13 of adjacent bullet segments 5, 7, 9 have co-operating tapered surfaces 21 shaped such that the bullet segments are movable axially with respect to one another such that the bullet assembly 3 may be in an expanded state or a collapsed state.

Abstract: A wear-resistant tool insert for machines used in the manufacture of nails, screws, rivets and similar items from a wire starting material. The tool insert is of divided design in the axial direction of the supplied wire. Thus, during application of the tool insert it can "flex" in a controlled manner thereby reducing tensile stress in the tool insert, and reducing the possibility of fracture or breakage of the tool insert, when employed in an overload condition with unacceptably large tensile loads.

Abstract: A forging or cold-pressing tool comprising an annular combination of nib pieces held in a case and having a regular polygonal die bore inside the nib pieces, each of the nib pieces having an approximately isosceles trapezoidal cross section. Opposite ends of each nib piece before assembly make an angle .alpha. smaller than an angle obtained by dividing 360.degree. by the number of nib pieces. When held in the case, the nib pieces are elastically deformed by a tightening force of the case, whereby the butting end faces of each pair of adjacent nib pieces are entirely pressed into contact with each other under a pressure increasing from portion to portion toward the die bore. A layer for giving improved resistance to seizure is formed over the surface of each nib piece.

Abstract: A bending press comprises an upper frame (6); a blank holding device (103) mounted on the upper frame, for holding a sheet panel on a member opposed to the blank holding device, the blank holding device including a central member (1), two extremity members (4,4'), and a plurality of additional members (3,3') disposed between the extremity members (4, 4') and the central member (1); a storehouse mounted on an upper section of the upper frame, for storing a plurality of central members, the storehouse including: an elongated carriage (141) supported on an upper section of the upper frame (6) so as to be movable in the lateral direction of the bending press, the elongated carriage extending in the lateral direction and being provided with a plurality of first vertical guides (151) arranged along a longitudinal axis of the elongated carriage, each of the first vertical guides being adapted to engage one of the central members so as to guide the same in the vertical direction, and a support surface (153) provided

Abstract: A laminated punch assembly (20) is adapted for use in a press brake to bend sheet metal (M) interposed between a punch and die when the punch and die are moved relatively toward one another. The improved punch assembly includes a plurality of plate-like members (24). Each member has large-area obverse and reverse faces (30, 31), and has a peripheral surface. A slot extends into each member from a portion of its peripheral surface, and communicates the two faces. The plurality of members are arranged in face-to-face area contact to define an elongated laminated punch assembly, with the slots of each member being aligned to form an elongated slot in the punch assembly. An elongated insert (26) is adapted to be slidably inserted into the punch assembly slot, and has an exposed bending surface (63) adapted to engage the sheet material when the brake is used.The invention also provides an improved die assembly for use in such a press brake.

Abstract: An extrusion die for use in producing aluminum alloy articles of extruded shapes or tube having a void with defined internal dimension, said die comprising:i) a die plate with at least one die cavity defined by a first die bearing surface which defines an external shape for such extruded article;ii) an extruding mandrel secured in said die cavity and having a second die bearing surface which defines an internal shape for such extruded void;iii) a truing mandrel positioned beyond said mandrel second die bearing surface for correcting internal shape of such void and providing such defined internal dimension, said truing mandrel having a forming surface defining an external dimension relative to an external dimension of said extruding mandrel for correcting of internal shape where said truing mandrel external dimension is at least equal to a lower limit for finish tolerance on such internal dimension, said truing mandrel forming surface being spaced from said extruding mandrel bearing surface by a reduced portio

Abstract: The bending press is of the type comprising a movable blank-holder formed by a series of sections in which two spaced-apart sections are in the form of shoes (34) with projections (36) pointing in opposite direction so that each can be engaged in a channel-shaped bend which has already been made. Each shoe (34) is supported by a shoe-holder body (38) by means of inclined guides (40) by virtue of which, when the movable blank-holder moves away from the fixed blank-holder, the two shoes (134) move towards one another in order to release their projection (36) from the channel-shaped bends.

Abstract: A plurality of beads with matching transverse faces and longitudinal bores cooperate to form a bendable shaft with a duct therethrough, held in face-to-face contact with a plurality of elastic bands within the duct. Alternatively, the plurality of bands may comprise a single elastic inner tube. The elastic bands may also mutually overlap to provide redundancy in case a band should break.

Abstract: The invention relates to a method and apparatus for adjusting the width of the bending jaws in a bending machine. The total width (L) of the bending jaws is formed by using jaw parts and edge pieces in the following manner:a first set (R.sub.1) is elected to form a group of jaw parts of different widths for so-called fine adjustment, one at a time (R.sub.1n) being at the operational point (T) of the bending jaws,a second set (R.sub.2) is elected to form a group of jaw parts with identical width and to be separate from the edge pieces (RK.sub.1, RK.sub.2) for so-called coarse adjustment, wherein the width of the bending jaws required at a time is elected according to the equationL=R.sub.1n +N * R.sub.2i +C,whereinL=the width of the bending jaws,R.sub.1n =the width of the jaw part (n=0 . . . M) elected from the first set (R.sub.1),N=the width of the jaw parts of the second set (R.sub.2), i.e. a constant,R.sub.2i =the number (i=0 . . . k) of jaw parts of the second set (R.sub.

Abstract: A device for expanding rotationally symmetrical shaped parts (16), including a divided expanding mold (1), a pressure die (11) and a pressurizing means (14), wherein a mold cavity (9) of the expanding mold (1) is defined in axial directions by continuous end faces (20,21) of two spaced annular molds (17,18) and in radial direction by an inner peripheral surface of two mold halves (2,3).

Abstract: A blank holder having variable assembly is used in a folding machine for the production of a sheet panel. It comprises a central element (3), a plurality of additional elements (6), a pair of expander elements (4), two extremity members (7), at least one programmable carriage (15) movable along the blank holder which is operable to modify the length of the blank holder.

Abstract: A die (1) has a thin rod-shaped mandrel (2) tightly surrounded by the segments (11) of a gripper (3), the mandrel (2) being placed in the axial bore (5) of a mandrel holder (4). The inner peripheral surface of the axial bore (5) is shrinkage-fitted or otherwise fixedly fitted on outer peripheral surfaces of the gripping segments (11), thereby urging them to keep the thin rod-shaped mandrel (2) in place in the holder (4). The mandrel can have an extremely fine orifice forming end (9) of a diameter of 3 mm or less, such an fine can be prepared easily and precisely, and maintenance of the die can be done inexpensively when the orifice forming end will have been worn out or damaged.

Abstract: This invention details a computer controlled self adjusting sheet metal forming die which can provide rapid contour changes. It eliminates the need to manufacture, store, and change individual forming dies for forming different contours, and comprises a computer control device which sends appropriately timed signals to translate each contour element so that a three dimension surface is formed by a discrete matrix of individual pins. This self adjusting sheet metal forming die is used on a sheet metal press wherein sheet metal can be formed by pressing or stretch forming the metal against the contoured surface.

Abstract: A method of producing weldless resonating monolithic cavity comprising the steps of: arranging a die which can be disassembled into sectors and having the form of the internal cavity of the resonator; spinning a foil by using said die so as to provide a monolithic weldless body of metal sheet which coats exactly and completely the die; and disassembling and removing the sectors of the die through one opening of the resonator.

Abstract: A master brake die has a pair of adjustable die shoes. First and second shim packages each having a plurality of shims of a preselected width are positioned adjacent a respective die shoe and moveable therewith. A preselected number of shims from each shim package is controllably moved into an operative position between a stop surface and a respective die shoe.

Abstract: A press brake has upper dies and lower dies so as to be capable of attaching and detaching with an upper die exchange apparatus and a lower die exchange apparatus to a machine body of the press brake. And, the upper die and the lower die comprise the combination of divisional die chips. The storing of dies is performed with those die chips. And, the face width of the upper die chips is determined and combined according to size of a workpiece to be processed from the upper die chips.

Abstract: An improved variable geometry tooling die is disclosed employing die segments 12 for use in die-press bending of materials. A forming die 10 is constructed of a plurality of segmented portions 12 which are radially adjustable for bends of different radii. Interchangeable inserts 20 in the segmented dies 12 allows for bending materials with various outside diameters and shapes.

Abstract: A universal plying iron is described, consisting of a base plate with a mold support positioned on bracket supports in such a way as to match the contour and mold level of the section to be bent on the base plate, the section to be bent, in the form of a bending template, being bent by means of mold rollers around a section support projecting from the mold support. For the universal application of the plying iron, without the need for involved modification of the bending molds, the bracket supports are positioned in adjustable fashion on the base plate and tension elements are provided on the bracket supports, which tension elements stress the mold support and simultaneously carry the section support, and can be adjusted to the desired height.

Abstract: A mandrel for use in a vertical-type pipe expanding apparatus comprising a reciprocating member provided above pipes to be expanded and vertically movable by extending and contracting means; an attachment plate provided adjacent to the underside of the reciprocating member, having a predetermined space gap formed on the upper side, and also having a plurality of penetration holes bores through the attachment plate to hold a plurality of pipe expanding mandrels in such a manner as to prevent the mandrels from slipping off in the direction toward their tip ends, when the mandrels are inserted into the penetration holes to extend vertically downwardly therethrough, the proximal ends of the mandrels being capable of projecting through the reciprocating member from below to above; and a pressing attachment removably installed into the space gap and having pressing surfaces formed to make the proximal ends of the mandrels actuatable in match with positions of the pipes to be expanded.

Abstract: A mold for forming a groove in a tube includes a split round bar having a groove extending in a substantially straight line along an axis thereof. The two halves of the split round bar are in contact with each other only at a pint at the bottom of the groove, so that the two halves may pivot with respect to each other about the contact point. A spacer bar is removably clamped between opposed inner surfaces of the two halves of the split round bar. When the spacer is removed, the groove in the round bar is slightly enlarged to provide clearance between the tube and each side wall of the groove to enable the round bar to be easily removed from the tube.

Abstract: Conventional press brake female dies which have to be manually adjusted are not adaptable to today's automated factories for producing different shaped components on a demand basis. The subject apparatus overcomes this problem by providing powered, adjustable female die jaws that are positively located by powered rotary shims having several thicknesses to be presented according to the desired opening between the jaws. The power source for adjusting the jaws and the rotary shims may be controlled electronically to adjust the jaws to a position to produce a prescribed shape from a plate of metal.

Abstract: A ceramic isothermal forging die comprises a pair of disk-shaped die halves that are formed of ceramic and have die cavities cut in their mating surfaces and a pair of die half holders each having a recess for accommodating one of the die halves. Each die half is divided into a plurality of radial segments whose bottom surfaces are tapered away from their mating surface with increasing proximity to the center of the die. The floor of each die half holder is tapered to become deeper toward the center of the die and to be complementary to the tapered bottom surfaces of the die segments. The ceramic material of the die makes it usable in the atmosphere. Because of the segmentation of the die halves and the tapering of the segment bottoms and the floor of the die holder recesses, a large force which would otherwise be produced in the circumferential direction of the die by thermal stress during heating and cooling is suppressed.

Abstract: The present invnetion is a portable reinforcing rod cutter and bender. A cutting die having elongate and oblique holes for receiving a plurality of rods to be sheared cooperates with a cutting blade connected to a hydraulically operated ram. A female bending die having a pair of pivoting die blocks cooperates with an anvil to bend rods of different diameter to bends having different angles and different diameters. The cutter and bender includes a first gauge for measuring bend angles and a second gauge for measuring the length of rods being bent or sheared. The cutting blade, cutting die, bending die, and anvil are readily removable to allow replacement thereof and to bend and shear different types and sizes of rods and pipes to different bend angles and bend diameters.

Abstract: A bending machine having a plurality of reversible dies mounted on the lower end of a ram. A reversibly supporting shaft is laterally installed at the rear side of the ram, and a reversing lever is mounted on the reversibly supporting shaft. The reversible dies are removably mounted on the ends of the reversing lever to be readily exchanged from the upper die to the goose-neck die or vice versa.

Abstract: An improved consolidated backshoe die is provided for use in a tube bender machine used for bending metal tubing of the type used, for example, in vehicle exhaust systems and the like. The machine includes a bending die having a convexly curved die face for bending engagement with a metal tube supported by a pair of the consolidated backshoe dies mounted on an outwardly pivoting pair of back gates. The bending die is advanced along a line extending between the back gates to engage and bend the metal tube, with the back gates swinging outwardly in opposite directions as the tube is bent. The consolidated backshoe dies are each constructed from a plurality of interlocking backshoe members adapted for partial or complete assembly on the associated back gate, thereby providing a backshoe die of variable length to permit formation of tube bends at closely spaced positions along the metal tube.

Abstract: The method and apparatus described herein produce a tubular shelf post having a plurality of spaced apart annular grooves along the length thereof and stamped indicia on the outside surface of the post at various groove locations. A grooving and stamping roller is utilized to simultaneously groove and stamp the post with indicia, such roller being substantially larger in diameter relative to the post whereby a single roller revolution is sufficient to groove and stamp the post thereby eliminating double stampings.

Abstract: A cam shaft made from lobes having irregularly shaped apertures spaced along the longitudinal axis of a hollow tubular shaft. The method of making the cam shaft includes the steps of: inserting a hollow tubular shaft through the apertures of a plurality of the lobes axially and radially with respect to the longitudinal axis of the shaft. The method is characterized by flaring at least a first end of the shaft and backing the exterior of the first flared end to prevent axial radial movement thereof. In addition, a plug means is inserted into fluid sealing engagement with the interior of the first flared end to sandwich the flared end against the backing of the exterior thereof. The hollow shaft is filled with liquid and the opposite ends of the shaft are clamped between the plug means at the first flared end and a fluid sealing means at the opposite end of the hollow shaft. Hydraulic force is then applied to the interior of the shaft to expand the hollow shaft into engagement with the apertures of the lobes.

Abstract: An electrician's wire bending implement particularly adapted for use with a set of mandrels that are each provided with a drive socket, comprising in combination, an elongate basic wire bending tool, and a graduated array of mandrels that are each equipped with a pair of spaced apart pins. A square drive is provided at one end of the basic tool, and a handle is provided for use on the end of the basic tool remote from the square drive. The handle is to be used on the basic tool when ample torque is to be applied while making lateral bends in heavy gauge wire, using the spaced pins of a selected mandrel that has been mounted on the square drive. Preferably I use a fixed wire forming jaw on the end opposite the square drive, to facilitate creation of fore and aft bends in heavy gauge wire.

Abstract: A tool for removing dents from tubing, particularly dents from curved brass tubing used in musical instruments such as trombones, trumpets and french horns. The tool is designed not only to drive a barrel-shaped dent ball past the dent to raise it, but also to reverse the procedure to remove the tool from the horn in working with tubing that is not open ended. The tool has a series of barrel-shaped force transmitting beads which are pivotally connected to each other and to a tubular handle at one end. At the other end a length of cable extends through a fixed metal driver ball to a metal retainer bead at the end of the cable. A barrel-shaped dent ball is strung on the cable for movement between the driver ball and retainer bead for impacting motion by reciprocation of the handle when the dent ball has been lodged underneath the dent to be removed.

Abstract: A large size barrel-shaped dent ball for removing dents in curved and tapered tubing having a diameter between 21/2 and 41/2 inches such as a tuba. The ball is constructed with a hardwood core and a steel band about the center portion of its length. An axial steel tube is also inserted in the hardwood core to facilitate use and removal of the ball from the tube. This composite structure reduces the overall weight so that the ball can be manipulated during use. A cable tool on which the dent ball can be strung between two metal impact balls is also presented. Reciprocation of the cable provides repeated impact of a metal impact ball against the barrel-shaped dent ball to drive the dent ball under and past the dent in a dent removal and tool retrieval direction.

Abstract: A method and apparatus is provided for stamping or printing identification indicia on a circular segment such as the flat portion of the head of a cap screw, bearing race, or stud end. The adjustable diameter stamp uses a plurality of segments which, when fitted together, form a cylinder or other polygonal shape which is held securely in a matching collet during the stamping operation. Variable diameter stamping is accomplished by using different sized stamping segments. Also, shims may be used to provide marking diameter adjustment. The preferred embodiment uses four wedge-shaped stamping segments.

Abstract: A system for forming a surface configuration, such as a neck and a flange, on a can body adjacent an open end thereof using a mandrel having an outer surface comprising generally cylindrical portions on each side of an annular recess which recess has a surface configuration corresponding to the neck and the flange to be formed. A resilient deformable object is located around the mandrel. A portion of a can body is placed between the mandrel and the resilient, deformable object which is then deformed so as to move a portion of the can body into conformation with the surface of the annular recess. At the same time, a force is applied to a portion of the portion of the can body being deformed to resist the movement thereof so that the portion of the can body in which the neck and flange is being formed is stretched and thinned as it is moved into conformation with the surface of the annular recess.

Abstract: The present invention relates to a device for replacing upper and lower dies in a bending processing machine, such as, for example a press brake. According to the invention, long upper and lower dies used in a bending processing machine are comprised of freely dividable sections that can be taken apart and recombined for convenient storage in an adjacent die exchange device. In the die exchange device, die holders are formed on the insides of a number of link members which are pivotably linked in a loop.

Abstract: An apparatus for adjusting the tool length of a bending machine comprises a ram having a lower end, a top tool body mounted on the lower end of the ram, a bottom tool mounted below the top tool body, a top tool including a pair of central dies mounted longitudinally movably on the lower end of the ram, a plurality of upper split dies arranged outside the central dies and mounted reversibly to the upper die row, a plurality of thin upper dies inserted reversibly between the central dies and being thinner than the upper split die, and upper corner dies arranged on both left and right ends of the upper split die, a shift mechanism for sliding the central dies reversely at the central portion of the lower portion of the ram, a drive mechanism for sliding the upper corner dies to the longitudinally symmetrical positions of the lower portion of the ram, shafts pivotably disposed at the back of the central dies and upper corner dies, a plurality of the upper split dies wedged to the shafts and reversed in pivoting o

Abstract: The present invention relates to a bending press having an upper and a lower tool disposed on a frame, together with a hydraulic ram for bringing the upper and lower tools together. The upper tool comprises a fixed punch of an arcuate shape, and has a plurality of detachable punches that are detachably mounted on the fixed punch for changing the external shape of the punch.

Abstract: A device is provided which can be used to remove washers from bolts in an efficient, fast and safe manner. The device is comprised of a removable blade assembly disposed in a handle device. The blade assembly has an opening permitting the insertion of the bolt such that when the bolt is fully inserted into the blade assembly, the washer is in contact with a plurality of substantially radially disposed blades. The device itself is provided with a handle, in one embodiment knurled, so that it may be held in a persons hand. After the bolt is inserted into the device, the bolt head is tapped using a striking device, such as a hammer. The force of the impact causes the blades to be driven into the washer, splitting the washer into several arc-shaped pieces and separating them from the bolt. The resulting pieces fall away from the bolt when the bolt is removed from the device, or at least then may be very easily removed from the bolt.

Abstract: A tool, used for forming a groove in a valve seat, having a tool main body which has a hardness greater than that of the valve seat, and an end portion with a circumferential surface which has a shape corresponding to the valve seat and is brought into linear or surface contact with the valve seat in an annular shape, and a wire which has a hardness greater than that of the valve seat and which is clamped between a circumferential edge of the valve seat and the end portion of the tool main body so as to cross the circumferential edge of the valve seat, wherein the tool main body is pressed until the circumferential surface of the end portion of the tool main body is brought into linear or surface contact with the valve seat in an annular shape and the movement of the tool main body is stopped, thereby forming an impression of the wire on the valve seat.

Abstract: A ceramic-type semiconductor package including a semiconductor pellet, a ceramic lead base having a cavity for accommodating the pellet, and a metal cap for sealing the cavity. The cavity is upward opened, and the metal cap has a central depressed portion to be inserted into the cavity. The central depressed portion has a bottom wall which has a faceted surface.Also, a process for producing a ceramic-type semiconductor package including the steps of providing a semiconductor pellet, providing a ceramic lead base having an upward opened cavity for accommodating the semiconductor pellet, placing the semiconductor pellet in the cavity of the ceramic lead base, pressing a flat metal plate between a male die and a female die, whereby a metal cap having a central depressed portion is produced, inserting the central depressed portion of the metal cap into the cavity of the ceramic lead base, and sealing the peripheral flat portion of the metal cap with a sealing frame bonded on the ceramic lead base.

Abstract: A process for extruding a metal billet, in particular a light metal billet in an extrusion container, into the form of a hollow section through a shape-giving orifice in a die having a mandrel which determines the inner contour of the hollow section, and a device with stem for extruding should be designed such that it is possible to produce flanged tubes with integral flange in one piece. This object is achieved by way of the invention in that in the extrusion of the hollow section an integral flange is produced, preferably at the end of the extrusion stroke. In the extrusion press suitable for this purpose a shaping recess is provided, with respect to the extrusion direction, immediately before the orifice of the die, the radial dimension of which is greater than the width of the die orifice. As such it should be possible to separate the die radial to the extrusion direction into at least two parts.

Abstract: A composite assembly knurling tool for forming uniformly-spaced horizontal serrations continuous across the surface of a metal flake producing drum is disclosed. The knurling tool comprises an alternating array of spacer and forming discs substantially conforming to the contour of the metal flake producing drum.

Abstract: A stretch-forming tool to provide a variable tool contour for the stretch-wrap forming and joggling of extrusions of aluminum, or the like, to any of a variety of different contours. The present tool comprises a base plate in which a plurality of elongated slots of variable length are cut. An array of position variable form blocks are respectively connected to the base plate at the slots formed therein. Each of the form blocks is adapted to ride through a respective slot to assume a particular position, relative to other form blocks of the array, whereby to define a desired net contour. The form blocks are particularly aligned relative to one another by means of a template. The template is shaped so as to correspond to the configuration of the final production part, either precisely or approximately, depending on whether compensation for springback is to be included.

Abstract: An embosser combined with a steel rule die for embossing sheets of stock where the embosser includes an insert positioned within an opening formed in the steel rule die. Threaded bores are formed in the steel rule die and extended into its opening. Screws are threaded into the threaded bores and contact the embosser insert such that longitudinal movement of the screw in the bore is translated into lateral movement of the insert for adjustable registration of the embosser with the print on a sheet of stock.