What are the characteristics of forgings?

Many products used in our industry are forgings, and its applications are very many, including: metallurgical machinery, marine forgings, module forgings, locomotive forgings, military forgings, etc. Forgings refer to workpieces or blanks obtained by forging and deforming metal blanks. Here are some features of forgings.

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First, the weight range is large. Forgings range from as small as a few grams to as large as several hundred tons

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Second, the quality is higher than that of castings. The mechanical properties of forgings are better than those of castings, and they can withstand large impact forces and other heavy loads. Therefore, forgings are used for all important and high-stress parts. For high carbide steels, forgings are of better quality than rolling stock. For example, high-speed steel rolled products can only meet the requirements of use after forging. In particular, high-speed steel milling cutters must be forged.

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Third, the lightest weight. On the premise of ensuring the design strength, the weight of forgings is lighter than that of castings, which reduces the weight of the machine itself, which is of great significance to vehicles, airplanes, vehicles and space aircraft.

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Fourth, save raw materials. For example, for a crankshaft with a dead weight of 17kg used in automobiles, when the rolling material is used for cutting and forging, the chips account for 189% of the crankshaft weight, while when die forging is used, the chips only account for 30%, and the machining time is shortened by 1/6. Precision forged forgings can not only save more raw materials, but also save more machining hours.

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Fifth,high productivity. For example, two hot forging presses are used to forge radial thrust bearings, which can replace 30 automatic cutting machines. When using the upsetting automatic machine to produce M24 nuts, the productivity of the six-axis automatic lathe is 17.5 times.

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Sixth,free forging has great flexibility. Therefore, forging methods are widely used in some repair factories to produce various accessories.