What are the uses of forgings?

2024-08-14 15:32:08

Forged parts refer to workpieces or blanks obtained by forging and deforming metal billets. By applying pressure to metal billets to induce plastic deformation, their mechanical properties can be altered. Forging can be divided into cold forging, warm forging, and hot forging according to the temperature of the billet during processing. Cold forging is generally processed at room temperature, while hot forging is processed at a temperature higher than the recrystallization temperature of the metal billet.

General industrial forgings refer to civilian industries such as machine tool manufacturing, agricultural machinery, agricultural tool manufacturing, and bearing industry. Forged parts for hydroelectric generators, such as main and intermediate shafts.

Forged parts for thermal power plants, such as rotors, impellers, retaining rings, and main shafts. Metallurgical machinery, such as cold rolling rolls, hot rolling rolls, and herringbone Gear shafts.

Forged parts for pressure vessels, such as cylinder, kettle ring Flange, and head. Marine forgings, such as crankshafts, tail shafts, rudder stock, thrust shafts, and intermediate shafts.

Forging machinery equipment, such as hammer heads, hammer rods, columns and cylinder bodies of hydraulic presses, pillars and cylinder bodies of wheel axle press machines, etc. Modular forgings are mainly forging dies used for hot forging hammers.

Forged parts used in the automotive industry, such as left and right steering knuckles, front beams, couplers, etc., account for 80% of their mass in automobiles according to statistics. Forged parts for locomotives, such as axles, wheels, leaf springs, and crankshafts, account for 60% of their mass in locomotives according to statistics. The weight range of forgings is large. Forged parts can range from a few grams to several hundred tons in size.

Forged parts have higher quality than castings. The mechanical properties of forgings are better than castings, and they can withstand large impact forces and other heavy loads. Therefore, forgings are used for important and heavily stressed parts.

For high carbide steel, forgings have better quality than rolled materials. High speed steel rolled materials can only meet the usage requirements after being modified and forged. Especially high-speed steel milling cutters must undergo forging modification.

The forging is lightweight. On the premise of ensuring design strength, forgings are lighter in weight than castings, which reduces the weight of the machine itself and is of great significance for transportation vehicles, airplanes, vehicles, and spacecraft.

Forging saves raw materials. For example, for a crankshaft with a static weight of 17kg used in automobiles, when using rolling cutting and forging, the chips account for 189% of the crankshaft weight, while when using forging, the chips only account for 30%, which also shortens the machining time by 1/6.

Precision forged forgings can not only save more raw materials, but also save more machining hours.

High forging productivity. For example, using two hot forging presses to forge radial thrust bearings can replace 30 automatic cutting machines. When using a top forging automatic machine to produce M24 nuts, the productivity of a six axis automatic lathe is 17.5 times higher.