Abstract
The quality of parts such as deep cylindrical cups made by cold forging from low-carbon steel and sintered billets from iron powder is compared. Technological processes from production of iron-based powder parts and press equipment used in mechanical engineering and in powder metallurgy are described. Cold forging of powder billets and billets from low-carbon steels is carried out on press specialized for extrusion with the creation of actively directed contact friction stresses between the deformable billet and the die. It is shown that cold extrusion of cup-type parts with actively directed contact friction stresses makes it possible to manufacture parts from iron-based powder with density equal to 98...99 % of the theoretical iron density. However parts from low-carbon steel have strength limit greater than that of powder parts. Powder cups do not have the anisotropy of properties typical for cups from low-carbon steels.
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