What is gear hobbing ? Which type of cutter is used for making gear?

Question

Accepted Answer

Gear hobbing is a machining process for making gears using a special type of cutter called hob.

Gear hobbing is a gear manufacturing process that uses a hobbing machine to cut teeth into a workpiece.
The hobbing machine rotates the workpiece while a rotating cutter (hob) cuts the teeth into the gear.
Hobbing is used to produce gears of different sizes and shapes, including spur gears, helical gears, worm gears, and more.
The hob is a cylindrical cutting tool with helical cutting edges that are designed to produce the correct gear tooth profile.
The hob is made of high-speed steel or carbide and is designed to be used for a specific gear profile.
The hobbing process is highly accurate and produces gears with excellent surface finish and dimensional accuracy.

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