Project ForgeManufacturing Engineering
Machining Processes
GATE 2016
Medium
Internal gears are manufactured by
- Ahobbing
- shaping with pinion cutter
- Cshaping with rack cutter
- Dmilling
Explanation
Internal gears must be cut with a pinion-type (Fellows) cutter that can reach inside the bore — hobbing and rack-type cutters need external access and can't produce internal gear teeth.
Source: GATE ME 2016 Set-3 (2016)
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