1) Wide weight range. Forgings can range from a few grams to hundreds of tons.
2) Higher quality than castings. Forgings have better mechanical properties than castings and can withstand large impact forces and other heavy loads. Therefore, important and heavily stressed parts are often made from forgings.
For high-carbide steel, forgings are of higher quality than rolled materials. For example, high-speed steel rolled materials can only meet usage requirements after being re-forged. High-speed steel milling cutters, in particular, must be re-forged.
3) Lighter weight. While maintaining the required strength, forgings are lighter than castings, which reduces the weight of the machine itself. This is of great significance for transportation equipment, aircraft, vehicles, and aerospace equipment.
4) Saves raw materials. For example, a crankshaft weighing 17 kg used in an automobile requires 189% of its weight in material when using rolled material and machining, while using die forging only requires 30% of the material, and also reduces machining time by 1/6.
Precision forgings not only save more raw materials but also save more machining time.
5) High productivity. For example, using two hot die forging presses to forge radial thrust bearings can replace 30 automatic cutting machines. When producing M24 nuts using an upsetting automatic machine, the productivity is 17.5 times that of a six-axis automatic lathe.
6) Free forging offers great flexibility. Therefore, forging methods are widely used in repair and manufacturing plants to produce various parts.
