Gear Hobbing

Gear hobbing is a multipoint machining process in which gear teeth are progressively generated by a series of cuts with a helical cutting tool (hob).  Both the hob and the workpiece revolve constantly as the hob is fed across the face width of the gear blank.

Process Characteristics

Is a gear generating process that uses a helical hob cutter
Cutters and blanks rotate in a timed relationship
Maintains a proportional feed rate between the gear blank and the hob
Cuts several teeth on a progressive basis
Is used for high production runs

Back

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.