Forged Shaft Manufacturing Process: From Raw Material to Finished Product

The production of forged shafts begins with the selection of raw materials, typically hot-rolled bars or steel ingots. The forging method, such as open-die forging or closed-die forging, is determined based on the shaft dimensions and production volume. Subsequently, the forging process involves steps such as upsetting, drawing out, and shouldering to ensure complete metal flow lines, enhancing strength and durability. Complex shapes require specialized tooling to control deformation. Finally, heat treatment and finishing processes, such as quenching and tempering, and grinding, are performed to eliminate internal stresses and achieve the required precision, ensuring stable performance of the finished product.