METHOD OF MACHINING OF INTERNAL ROTATING SURFACES OF NONRIGID STEEL BLANKS WITHOUT MARTEMPERING Russian patent published in 2003 - IPC

FIELD: technology of mechanical engineering, particularly, fine finishing mainly of internal rotating surfaces of nonrigid blanks whose material being steel without martempering. SUBSTANCE: for attainment on worked surface of roughness parameter Ra < 0.16 mcm, blank after dimensional edging is subjected to surface plastic deformation by rigid working members to obtain on worked surface of roughness parameter of Ra=0.25-0.16 mcm and then to centrifugal pneumovibrodynamic working under regimes whose numerical values and specific pressure of different in weight deforming members in form of balls ensure further reduction of roughness value. EFFECT: higher efficiency. 1 ex