As a key component of automobiles, automobile transmissions have particularly strict requirements on the material, form and position tolerance, surface quality and other factors of the mechanical parts assembled therein. The synchronizer hub is an indispensable and important component of the transmission, which is mainly used to reduce the impact between gears when the car shifts gears and realize smooth speed change of the car.

Synchronizer hubs are generally produced by powder metallurgy. During the processing and forming process, due to reasons such as molds, processes or raw materials, visible burrs and burrs often appear on the edges between the teeth or the middle keyway of the product. The existence of this burr phenomenon will have an adverse effect on the surface quality of the product, and have a great impact on the mechanical properties, safety, and user experience of the transmission assembly. Today we will share a case of how to remove burrs and flash from automobile synchronizer hub products and achieve high-efficiency grinding and polishing in large quantities. This grinding process method is also applicable to the deburring and grinding and polishing needs of other automobile parts such as powder metallurgy or castings such as gears, gear rings, and gear sleeves.