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Roller burnishing is a method of working a metal surface to improve its finish and dimensional accuracy and can provide some degree of work hardening. This article discusses the workpiece requirements used for roller burnishing. It illustrates the types of roller burnishing tools, such as internal tool, external tool, and tools for the roller burnishing of tapered holes and circular flat surfaces. The article contains a table that lists typical inside and outside diameter speed and feed rates for roller burnishing tools. It exemplifies typical lubrication techniques and the conditions used in the roller burnishing of magnesium alloy castings. The article reviews fillet rolling that is used to improve fatigue resistance of the materials. It concludes with a discussion on the process considerations for three basic types of bearingizing tools for the finishing of bores: bottoming, semi-bottoming, and through-hole.

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