Abstract: The present invention includes a plurality of substantially similar deep rolling tools that are positionable radially about a workpiece. The plurality of tools is preferably oriented in a substantially coplanar fashion. At least one of the tools is movable relative to the other tools, thereby allowing delivery or removal of the workpiece, for example an automotive crankshaft, for deep rolling thereof.

Abstract: The present invention provides a plug-in lower tool for a deep rolling apparatus. The tool includes a housing having a recessed region that defines a seat for removable mounting of the tool and a passage in communication with the seat. The tool includes a reciprocable member engageable with the tool to removably support the same in the seat.

Abstract: The present invention provides an apparatus for deep rolling an elongate workpiece such as a crankshaft or a camshaft. the apparatus includes upper and lower tools. At least one of the upper and lower tools includes a tool housing with a shaft extending therein. A roller is arranged about the shaft and rotatively supported thereon. At least one work roll rotates against the shaft, and is retained by first and second cage members secured to the housing.

Abstract: The two-piece upper work tool 20 includes a first body member 22 and a second body member 24 which are generally mirror images of each other. The body members 22, 24 include a plurality of orifices 28 therethrough. One of the body members 22 includes a plurality of elongated slots 26 with a circular shape at one end thereof. The other body member 24 has a plurality of fasteners, posts or dowels 30 extending from a surface thereof which interact and mate with the elongated slots 26 on the opposite body member 22. The body members 22, 24 include a rectangular shaped recess 32 on one end thereof and also include a plurality of pockets or cavities on inner surfaces thereof. One of the pockets includes a diameter for a back-up roller generally encompassing 360° except for a very small top portion thereof.

Abstract: The present invention provides an apparatus for deep rolling an elongate workpiece such as a crankshaft or a camshaft. the apparatus includes upper and lower tools. At least one of the upper and lower tools includes a tool housing with a shaft extending therein. A roller is arranged about the shaft and rotatively supported thereon. At least one work roll rotates against the shaft, and is retained by first and second cage members secured to the housing.

Abstract: The present invention includes a plurality of substantially similar deep rolling tools that are positionable radially about a workpiece. The plurality of tools is preferably oriented in a substantially coplanar fashion. At least one of the tools is movable relative to the other tools, thereby allowing delivery or removal of the workpiece, for example an automotive crankshaft, for deep rolling thereof.

Abstract: The two-piece upper work tool 20 includes a first body member 22 and a second body member 24 which are generally mirror images of each other. The body members 22, 24 include a plurality of orifices 28 therethrough. One of the body members 22 includes a plurality of elongated slots 26 with a circular shape at one end thereof. The other body member 24 has a plurality of fasteners, posts or dowels 30 extending from a surface thereof which interact and mate with the elongated slots 26 on the opposite body member 22. The body members 22, 24 include a rectangular shaped recess 32 on one end thereof and also include a plurality of pockets or cavities on inner surfaces thereof. One of the pockets includes a diameter for a back-up roller generally encompassing 360° except for a very small top portion thereof.

Abstract: The present invention provides an alignment system for deep rolling tools wherein at least one of an upper or lower tool includes an appendage received in the opposite tool when the upper and lower tools are positioned about a work piece. The present invention further provides a multi roll system for deep rolling wherein both of an upper and a lower tool are provided, each of the upper and lower tools having at least two radially offset work rolls supported on substantially coplanar back up rollers. Upon engagement with a work piece, work rolls are engaged therewith in at least four radial points of contact.

Abstract: An upper work tool mechanism for use in deep rolling operations and having a housing and a cover plate, as well as a cage system for operatively mounting the work rollers, with the cage being designed such that the cage and the cage retainer members have one or more uniquely positioned springs associated therewith to support the cage.

Abstract: An upper work tool mechanism for use in deep rolling operations and having a housing and a cover plate, as well as a cage system for operatively mounting the work rollers, with the cage being designed such that the cage and the cage retainer members have one or more pins associated therewith to uniquely support and strengthen the cage.

Abstract: A process for manufacturing an upper work roller for use in the deep rolling of crankshafts includes the steps of: rough sawing tool steel to form a generally cylindrical wafer, heat treating the wafer to provide it with a desired hardness, grinding of the wafer to desired dimensions to form a properly dimensioned heat treated blank wafer, a second grinding of the wafer to form a finished shape of work roller, and vibratory finishing the roller to achieve a desired microfinish thereon.

Abstract: A process for manufacturing an upper work roller for use in the deep rolling of crankshafts including the steps of: rough sawing tool steel to form a generally cylindrical wafer, heat treating said wafer to provide it with a desired hardness, grinding of said wafer to desired dimensions to form a properly dimensioned heat treated blank wafer, a second grinding of said wafer to form a finished shape of work roller, and vibratory finishing said roller to achieve a desired microfinish thereon.

Abstract: A lower work tool having a one-piece open style design with a plurality of openings and an upper work tool having a housing and cover plate each forming a plurality of openings.