The machining of the gear needs to supply the most elementary modulus m, the amount of gears Z, and the pressure 
angle a. Gear thickness h.
Gear Cast Iron processing methods generally include hobbing, equipment shaping, and milling gears, along with grinding teeth with high precision requirements. Corresponding machines and knives possess hobbing and hobbing cutters, equipment shaping machines and gear shaping knives, horizontal milling machines and gear milling cutters, gear grinding machines and equipment grinding wheels. details the following:
(1) Hobbing machine hobbing: It can process helical tooth below 8 modules
(2) Milling machine milling: can process straight rack
(3) Inserting teeth: can process internal teeth
(4) cool punching machine: can be processed without debris
(5) planing machine planing teeth: can process 16 modulus large gears
(6) Precision casting teeth: can procedure cheap pinions in large quantities
(7) Grinding machine grinding teeth: can process gears on precision machine
(8) Die casting machine casting teeth: most processing nonferrous metal gears
(9) Shaving machine: It really is a kind of metal cutting for equipment finishing