Abstract: A forming tool made from resins and fillers for the cold forming of sheet metal and especially suitable for forming short runs of sheet metal parts with drop hammers, hydraulic presses or mechanical crank presses, the filler being a mixture of iron filled resin and an aggregate; the aggregate being a lightweight by-product of the steel making process.

Abstract: This invention provides a method for cold extruding 18% nickel maraging steel to form an article of manufacture, such as a sub projectile blank for the manufacture of cannon rounds which includes performing a series of cold extrusion operations on an extrusion blank with a tapered punch to produce a combination forward extrusion and backward extrusion. On the first cold extrusion operation a tapered hole is formed in the extrusion blank and the extrusion blank is elongated. Subsequent cold extrusion operations progressively elongate both the extrusion blank and the tapered hole. The punch and die geometry are such that the tapered hole is elongated by penetration of the punch into the blank and additionally backward extrusion of the material around the punch. Additionally, as the tapered hole becomes increasingly longer, a floating punch is employed wherein at least a portion of the punch is supported by the walls of the tapered hole.

Abstract: A method for manufacturing a contoured die wherein a workpiece is formed with depressions extending across the top surface of the workpiece from front to back thereof. The depressions are formed spaced apart from one another to retain flat top surface portions therebetween. Smoothly contoured edge surfaces are then formed on the workpiece in the regions of intersection of the top surface with the front and back surfaces, to produce a die with ridge projections surrounded by top surface portions having a concave elevational contour as viewed in a vertical plane perpendicular to the side surfaces of the workpiece.

Abstract: A tool for straightening a bent control arm in an automotive vehicle suspion system: said tool comprising a first presser element slidably positionable on the control arm shaft, a second presser element affixable to an end of the control arm pivot shaft, and screw-nut means for drawing the first presser element toward the second presser element to thereby effect a straightening action on the bent area of the control arm. A power wrench is the preferred instrumentality for advancing the nut along the screw.

Abstract: An improved tool for installing captive type spark plug gaskets upon a spark plug body characterized in the provision of a staking member which contacts the inwardly directed locking flange of a gasket in such manner as to form undulations in the plane thereof to provide the equivalent of metal thickness which is appreciably thicker than the original thickness of metal stock from which the gasket is formed. During a staking operation, the inwardly directed flange is further inwardly folded to reduce the effective diameter of the free edge portion thereof, so as to be positioned to lie upon the unthreaded undercut area adjacent the lower transverse surface of the plug body. Because of the effective increased thickness of the free edge of the inwardly folded flange, cross threading with respect to the thread of the shank does not occur when the plug is unthreaded from an engaged cylinder head opening, and the gasket remains captive on removal.

Abstract: A drill screw comprising a threaded fastener with a drill bit formed on its entering end, the drill bit characterized by a bi-arc cross-section, that is the shape which is shared by two partially overlapping circles. Also disclosed are novel pinch point dies for making the drill bits and novel hobs for making the pinch point dies.

Abstract: A felting needle, with thousands of its counterparts, must be identically reproducible and uniform so that consistent duplication of the finished product of felted material is possible. The method of the present invention, as well as the apparatus of this invention for practicing the method, have the capability, for the first time, of exact duplication of a felting-needle barb, with rounded contours on all faces and edges which contact the fibers, and with uniform size, shape and finish, all produced by a method which is essentially a one-step process reducing the number of steps of the manufacturing procedure to a minimum. Thus the apparatus and process provide a barb-forming tool which has a recess or cavity formed therein which is the exact mirror image or mating counterpart of the shape or outline of the barb and barb-recess to be formed in the needle, and which, with such contour-controlling and material-constraining cavity, produces an exact cavity, throat and barb each time the tool strikes the needle.

Abstract: A hole expansion mandrel assembly for expanding holes through work pieces including a drive pin with a leading pulling section and a trailing driving shoulder; and a collet removably carried on the drive pin and abutting the driving shoulder where the collet has an expansion surface to enlarge the holes as the drive pin is used to force the collet through the holes. The drive pin may incorporate a fastener trailing the collet. The method of using the apparatus is also contemplated.

Abstract: Graphite having a compressive strength at room temperature of at least 10,000 psi is an improved die material useful in the forging of high strength alloys which are in a temporary condition of low strength and high ductility in hot die means.

Abstract: An anvil for a blind riveting tool for locking the plugs of self-plugging blind rivets. The anvil has a central aperture (11), an annular abutment face (13) peripherally of the aperture (11) and a rim (14) radially inwardly of the abutment face (13) and peripherally of the aperture (11). The rim (14) projects forwardly of the abutment face (13) and has a forward end face (16) which is inclined rearwardly and outwardly and provided with generally concave recesses (15) which extend radially across the end face (16) and divide it into a plurality of lands (20) which during placing of a rivet operate to swage part of the mandrel of the rivet into locking engagement with the shell of the rivet.

Abstract: A fastener/guide assembly and method including a fastener having a head, a bearing section to be extended through aligned holes in work pieces, and an engagement section opposite the head; and a guide member having a pilot section sized to extend through the holes to center the guide member in the holes, an expansion section trailing the pilot section sized to expand the holes, and locating means for locating the leading end of the fastener concentrically about the axis of the guide member so that the fastener follows the guide member through the holes.

Abstract: A cable-bending tool comprising a removable, cylindrical mandrel with a gved circumference, an adjustable clamp positioned adjacent to the grooved circumference of the mandrel and forming therewith a cable-holding vice, a compass with suitable angle markings thereon installed below the mandrel and positioned so that when a cable is bent around mandrel circumference, the bend-angle may be determined from the angle markings, and a suitable pedestal mount for mounting the foregoing assembly thereon.

Abstract: A hydrostatic extrusion method and apparatus for the extrusion of tubes is disclosed wherein the simplified structure of the nose or tip portion of the billet and the cooperating surfaces of the die defining the die cavity and those of the mandrel facilitate an improved initial sealing among the associated surfaces of the die, billet and mandrel. Such an initial sealing is effected between such interfaces of the members and billet at a point which is located substantially rearwardly from the position at which the actual extrusion to the final tubular configuration occurs between the bearing portion of the die and the cooperating sizing portion of the mandrel. Such structure and method permits the extrusion of tubes having walls of asymmetric or non-circular configurations in cross section, even those of complex configurations.