Broaching

Broaching is a cutting operation where accurate sizing and finishing of surface or shape is achieved by a single pass of a multipoint cutter (the broach).  The stock removal of the broach is built into the tool by having each successive tooth cut deeper into the material.  Thus, both roughing and finishing cuts may be built into the same tool.

Process Characteristics

Uses a single pass for finished shapes or sized
Produces close tolerances and good surface finish
Uses a multipoint cutting tool (broach)
Has the roughing and finishing teeth on the same tool
Machine surfaces are parallel to axis of tool motion

 

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Information provided is from Manufacturing Processes Reference Guide by Robert H. Todd, Dell K. Allen, and Leo Alting.--1st ed. Published by Industrial Press Inc., 1994.