SECTION 5.1

Each individual broaching application needs to be viewed independently in regard to how much and how often reconditioning may be required. The broached part is the primary factor used to determine the frequency of repair. If the part has a high carbon content, the abrasiveness of the carbon will wear the cutting tool more rapidly. Conversely, the lack of carbon content in the part may provide a softer part which is not conducive to good cutting action, but tends to be pushed by the broach tool (plastic deformation), causing build-up (or galling) on both the cutting edge and flank of the broach tooth.

Convenience is a factor when considering how often to recondition a tool. It is much more practical to recondition or sharpen a round, spline, or plain surface broach. These tools can easily be removed from the broach machine. However, the reconditioning or sharpening of an internal pot broach assembly requires much more time in disassembling and reassembling the pot, which may not be as cost-effective. Therefore, pot broach assemblies are often kept on the machine for a longer period of time.