Hot forging dies are used to shape and form engine valves by applying high heat and pressure to metal, turning it into a specific shape for engine performance. In the hot forging process, metal is heated to a high temperature until it is malleable, and then it is pressed into the die to create the desired valve shape. These dies are made from strong, heat-resistant materials, often steel or specialized alloys, to withstand the intense conditions of the forging process. High-quality forging dies ensure that the engine valves are precisely shaped and durable, improving engine efficiency and longevity.
