Automotive Transmission Synchronizer 20crmnti Carburized Wear-Resistant Forging Ring

Forging transforms solid metal from one shape to another through plastic forming processes like extrusion or punching, either hot or cold. Casting transforms liquid metal into a solid shape by pouring molten metal into a mold. Forging is a solid-to-solid process, while casting is a solid-liquid-solid process.

Quality is determined by external observation (checking dimensions, surface defects like cracks or bubbles) and internal testing (analyzing chemical composition, macroscopic/microscopic structures, and mechanical properties like tensile strength and hardness using specialized instruments).

The process for circular forgings includes pier roughening, elongation, punching, and expanding. Free forging uses a horse screw to expand holes, while ring rolling uses rolling for hole expansion.

The product supports various materials including C45 and 42CrMo, as well as other carbon structural steels like 45# steel, stainless steel, and spring steel.

Delivery surfaces include Black, Rough Machining Bright, and Fine Machining Bright, depending on customer requirements.