This document discusses various gear manufacturing processes including gear generation. It describes gear forming methods like milling and broaching that cut gear teeth directly into a gear blank. It also describes gear generation methods like hobbing where a helical cutter progressively cuts gear teeth. Hobbing uses pinion or rack shaped cutters to cut internal or external gears. The document also discusses gear finishing processes like shaving, honing, grinding and lapping to improve gear accuracy and lifetime. High energy rate forming processes like explosive forming, electrohydraulic forming and electromagnetic forming that deliver energy in very short intervals are also summarized.