A method for the production of workpieces with excellent mechanical properties of untreated steel.

摘要

Method of manufacture of parts from untreated steel, comprising a succession of operations of heat treatment and for forming, characterized by the successive operations: - heating of the steel at a temperature higher than the point of transformation (austenitization); - isothermal quenching in a fluidized bed bath, immediately after the heating of austenitization, giving the steel a bainitic structure; and - forming parts with warm.