Abstract: Metal forming apparatus in which a workpiece is heated and subjected to pressure, causing the metal to become plastic and flow into a selected configuration.

Abstract: Metal forming methods in which a workpiece is heated and subjected to pressure, causing the metal to become plastic and flow into a selected configuration. Apparatus in which the method can be carried out and tooling for use in the methods and apparatus.

Abstract: There is provided a method and apparatus for inductively heating elongated workpieces having a central axis and mounted in workpiece receiving stations of an indexable turret. A single shot inductor located within the path generally followed by the indexing workpieces is used to heat the workpieces. One of the turret stations, when empty, is indexed past the single shot inductor in a first direction and is loaded with a workpiece. Thereafter, the loaded station is indexed in a second direction into the heating position with the workpiece located in the single shot inductor. Thereafter, the workpiece is indexed from the single shot inductor for subsequent processing on the turret.

Abstract: A heat treatment pot for holding molten salts is produced by a spinning process to form the body of the pot from a substantially circular disc blank of heat resisting nickel chromium alloy. In the spinning process, a mandrel is utilized which has a circular end face and an external shape and cross-sectional dimensions complementary to the internal shape and dimensions of said body. The initial diameter of the blank is greater than the diameter of the circular end face of the mandrel by an amount which exceeds at least 90% of the required depth of said body. The blank is applied against the mandrel end face and the spinning process is carried out only to an extent sufficient to bend the blank so as to conform to the shape of the mandrel and to extend the blank along the length of said mandrel for a distance substantially equal to said depth of the body of the pot. The disc blank may be of laminate metal sheet comprising a layer of the nickel chromium alloy clad with a layer of mild steel.

Abstract: A method of working metallic material with roll dies resulting in toughening of the worked material is herein described, which method is characterized in that said metallic material is worked with roll dies while generating super-plastic phenomena by applying a temperature cycle passing over a transformation point to said metallic material.

Abstract: The specification discloses apparatus and a process for forming the female or bell end of welded wire reinforcing cages, particularly cages of the type used to reinforce concrete pipe. A cylindrical wire cage assembly is automatically centered and positioned within the apparatus and the bell end is formed by elongating one or more of the circumferential wires at one end of the cage. A force is applied between two points on the circumferential wires to simultaneously expand the wires and rotate the cage. A heat source is applied to a localized zone between the two points on the wire. The heat source and wire are moved relative to each other such that the heat zone moves along the wire as the force is applied. The wire is stretched under the force being applied to thereby continuously reduce the diameter of the wire and elongate the wire as it is moved relative to the heat source.