Abstract: A method and apparatus for deep drawing a cup-shaped article in which a blank is placed on a punch and the punch is passed through a series of deep drawing dies, so that the force required to strip the drawn cup-shaped article from the punch is substantially less than in a conventional method. After the deep drawing is completed, the cup-shaped article is slightly drawn to the final desired dimensions by a drawing step in which the wall thickness of the article is reduced no more than 10%. This is carried out by a slight drawing die spaced from the last of the series of deep drawing dies, preferably a distance at least half the height dimension of the finished deep drawn cup-shaped article.

Abstract: The invention contemplates low-cost and improved manufacture of an eccentric locking collar, as for use in securing a bearing ring or the like to a shaft. The locking collar is made by cold-forming a cylindrical metal blank with an eccentric cylindrical recess at one end and with a concentric cylindrical recess at the other end. A coining tool having the desired locking surface profile is inserted into the eccentric bore and is driven in axial compression causing blank material to flow or extrude around the profile. Thereafter, a punching operation completes definition of the concentric cylindrical bore which is ultimately to accommodate assembly to a shaft, and finishing steps are performed, such as set-screw adapting and tumbling.

Abstract: A device is disclosed for stripping a cup-shaped metal can blank from the end of a reciprocable ram of a can ironing press. The device includes a plurality of stripper members circumferentially spaced apart about an axis aligned with the ram axis. Each of the stripper members is supported for pivotal movement about a corresponding axis transverse to the ram axis and is individually captured against axial, circumferential and radial displacement relative to the ram axis. Each stripper member includes a nose portion adapted to engage behind a can blank on the ram to strip the blank therefrom, and the nose is biased radially inwardly of the ram by a corresponding adjustable spring mechanism.

Abstract: In the manufacture of drawn and ironed, unitary, can bodies, structure and method which interrupt surface contact between an ironing mandrel and the interior sidewall of a can body being ironed to reduce friction for removal of the ironed can body from the mandrel.During passage through an ironing ring, sidewall metal is moved into a narrow-width, linearly-extended indentation in the mandrel sidewall. The metal of the protrusion thus formed on the interior surface of the can body is moved along the mandrel sidewall during passage through a subsequent ironing ring, with such movement breaking surface adhesion between the mandrel sidewall and the interior surface of the container body sidewall to facilitate removal.