Invention of the gear-hobbing process about 150 years ago revolutionized not only gear fabrication, but also gear design. Basically, a hob or shaper cutter traverses the gear blank to generate teeth.
Orbital forming is a process that uses an angled forming tool (peen) that spins off center at a 3 to 6° angle to securely fasten an assembly. The tool progressively heads, swages, crowns, flares, or ...