Forming and generating methods in gear cuttingGears can be commercially produced by other methods like sand casting, die casting, stamping, extrusion, and powder metallurgy. All these processes are used for gears of low wear resistance, low power transmission, and relatively low accuracy of transmitted motion. When the application involves higher values for one or more of these characteristics, cut or machined gears are used.Gear cutting is a highly complex and specialized art, that is why most of the gear cutting methods are single-purpose machines. Some of them are designed such that only a particular type of gear can be cut. Gear production by cutting involves two principal methods—forming and generating processes. Gear finishing involves four operations—shaving, grinding, lapping, and burnishing Vikrant Sharma, FET. MITS Manufacturing Technology