Gear hobbing is an important process for manufacturing high-precision helical gears and it is widely adopted in production due to its unique advantages. During this process, the cutter accurately cuts out the standard helical tooth trace, accurate spiral angle and qualified tooth profile. The biggest advantage of this process is that it realizes continuous cutting. It also avoids continuous tool impact, ensuring uniform tooth surface finish and consistent dimensional tolerance for helical gears. Hobbing processes not only improve production efficiency and reduce manufacturing cost, but also lay a solid foundation for subsequent process finishing processes.