Page 115 - Gear Technology Solutions

8.8 Summary

Topland chamfering of face milled spiral bevel and hypoid gears as well as straight
bevel gears was in the past only possible on dedicated small machining centers.
The method introduced in this chapter allows a topland chamfering operation di-
rectly inside of the bevel gear cutting machine. The alternative is de-chucking the
gears and handling them to a separate stand-alone machine where the gears
have to be stock-divided, before a rather slow topland chamfering process with an
endmill is performed.

A further advantage of the new method is the nominal data-based chamfer path
calculation, which saves a time-consuming teaching process. Nevertheless, cor-
rections and optimizations to the chamfer angle and chamfer width can be made
via input items. It is also possible to increase or reduce the chamfer width from toe
to heel.

The chamfering process is fast because a disk cutter is applied to swing from toe
to heel in one slot and swing back to the toe in the next slot. Not only spiral bevel
and hypoid gears can be chamfered, but also straight bevel gears and couplings,
which often have a chamfer requirement in their part prints.

8.9 Literature

[1] Stadtfeld, H.J. “Gleason Bevel Gear Technology - The Science of Gear
Engineering and modern Manufacturing methods for Angu-
lar Transmissions”, Company Publication, The Gleason
Works, Rochester, New York, ISBN 978-0-615-96492-8,
2014, Pages 152 to 153

[2] Stadtfeld, H.J.; ”Bevel Gear Cutting Methods”, Gear Technology Magazine, Elk
Grove Village, Illinois, June 2016, Pages 58 to 57

[3] Stadtfeld, H.J. “Eight Selective Crowning Sections”, Chapter 5 in this Book

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