Abstract: A spline forming rack having a plurality of parallel teeth for the cold forming of a spline on a workpiece wherein the land surfaces of the teeth have deposited thereon by a welding process a layer of particles of a hardening material such as tungsten carbide to increase both the wear resistance and the roughness of the land surfaces.

Abstract: A quick release tool holder assembly including a tool holder defining a circular well, a pair of pads positioned on the tool holder and presenting inboard faces intruding into the well, and a wedge block member movable radially into and out of the well in response to rotation of a hand knob. The associated tool includes a wedge recess sized to receive the wedge tip of the wedge block. The pads are positioned within an angular range of 180.degree. as measured about the central axis of the tool and tool holder and the wedge block is positioned centrally within the remaining 180.degree. as measured around the central axis. The tool may be removed for refinishing or replacement simply by withdrawing the wedge block, moving the tool slightly laterally within the well, and then lifting the tool vertically out the well.

Abstract: A progressive broaching apparatus comprising a base, an index table mounted on the base and defining a plurality of circumferentially spaced work stations, first and second columns mounted on and independently upstanding from the base, and first and second rams mounted on the first and second columns in overlying relation to respective spaced portions of the index table and operative to coact with the work stations in response to indexing movement of the work table to progressively transform an unfinished workpiece into a finished workpiece. A track is mounted on one of the columns to define a linear path extending between the columns in overlying relation to the index table and a trolley is mounted for movement on the track to facilitate the delivery of unfinished workpieces to the work stations and the removal of finished workpieces from the work stations.