Hobbing

Hobbing is a machining process for gear cutting, cutting splines, and cutting sprockets on a hobbing machine, which is a special type of milling machine. The teeth or splines are progressively cut into the workpiece by a series of cuts made by a cutting tool called a hob. Compared to other gear forming processes it is relatively inexpensive but st...
Found on http://en.wikipedia.org/wiki/Hobbing

Hobbing

The operation of cutting gears with a hob.
Found on http://www.superglossary.com/Glossary/Business/Machine_Shop/

Hobbing

The operation of cutting gears with a hob. See also: Gear Design, Hob.
Found on http://www.diracdelta.co.uk/science/source/h/o/hobbing/source.html
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