| 摘要 |
FIELD: mechanical engineering; aircraft industry; shipbuilding; methods of metal forming. ^ SUBSTANCE: the invention is dealt with the methods of metal forming intended to increase durability of tool steels and may be applied in the field of mechanical engineering, aircraft industry, shipbuilding and other industries. The substance of the offered invention consists in plastic deformation of billets blanks out of a tool steel by a compression setting with a twisting till the accumulated deformation defined by the formula: ^ where - the critical deformation causing an intensive growth of grains of a microstructure of the steel; and - additional optimal deformations of compression and shift ensuring the maximum increase of the steel wear resistance. Application of the given invention in an industry will allow to increase rather efficiently the steel wear resistance of the steel, that may be used for production of cutting and measuring tools. ^ EFFECT: the invention ensures the maximum increase of wear resistance of the steel, that may be used for production of cutting and measuring tools. |
