Westinghouse Electric Corporation

Albert B Cady

Michael A Cross

Francis Cellier

A cam-controlled tube end finishing apparatus includes a cutting bit having multiple cutting faces, a platform supporting the cutting bit adjacent to the end of a rotating hollow tube, and a pair of cam-controlled mechanisms for moving the platform and thereby the cutting bit relative to the end of the rotating tube along a closed polygonal path of travel for severing the tube end. An initial portion of the rotating tube is severed in a direction from the outside to the inside of the tube at an angle to a plane normal to the rotational axis of the tube so as to define an initial cut face on the tube end extending in inclined relation to a plane normal to the rotational axis of the tube. A final portion of the rotating tube is severed in a direction from the inside to the outside of the tube at another angle to a plane normal to the rotational axis of the tube so as to provide a substantially burr-free cut face on the tube end extending in a plane normal to the rotational axis of the tube.

Cam-controlled tube end finishing apparatus and method

An inspection apparatus for measuring a surface contour on a workpiece, such as a groove in a pilgering roller die, includes a supporting mechanism for rotatably clamping the die so as to orient the groove thereon in a measurement position, an elongated contact member having a pair of arms with end elements extending in opposite directions, a pair of measurement devices each including a displaceable contact probe and electrical circuitry for measuring the displacement of the contact probe, and a spindle mounting the contact member in a generally vertical orientation and for movement about a vertical axis. End elements on the contact member arms are movable along orthogonally-disposed axes lying in horizontal planes and are respectively placed in contact with a contour of the die groove to be measured and the displaceable contact probes such that displacement of the probes permits measurement of the radius of the groove contour.

Apparatus and method for automated inspection of a surface contour on a

Pilger tooling for use in a pilgering machine includes an elongated stationary mandrel for supporting a tube thereon in position for cold reduction, and a pair of roller dies positioned along opposing sides of the mandrel and in oppositely-facing relation to one another for coacting with the mandrel in reducing the cross-sectional size of the tube. Each roller die is ring-shaped with a central opening for mounting the die on a shaft and has a keyway defined therein adjacent the central opening for receiving a key to secure the die for movement with the shaft. The keyway also provides a timing mark for accurately mounting the die on the shaft. Each roller die has two relief pockets formed in the periphery thereof in circumferentially spaced apart relation with a bridge extending therebetween, and a tube-reducing groove formed in the periphery thereof having a tapered configuration and opening at its opposite ends into the respective pockets. The end of one of the relief pockets is disposed radially outwardly from and aligned with the center of the keyway so as to provide a reference point on the die adjacent the periphery thereof. Each of the mandrel and roller dies are fabricated from a high strength cemented carbide material which is composed of tungsten carbide ranging from about 81.5 to about 86 percent by weight and cobalt ranging from about 14 to about 18.5 percent by weight.

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Plum Boro, PA, United States of America

Albert B Cady