FIELD: process engineering.
SUBSTANCE: set of inventions relates to drill stem and method of its production. Technical result is ensured by geometrical compensation used to perfect precision of elements location on drill stems formed by compaction and sintering. Drill stem body, not completely sintered, features cutting surface profile with shape differing from preset shape of cutting surface profile of completely sintered body formed from drill stem not completely sintered. In making the drill stem body, location error is forecast which will have at least one element of the set at drill stem body not completely sintered. At sintering the drill stem body not completely sintered to preset final density, at least one element is formed at the location at least partially defined by forecast location error which will exist in an least one element of the set, to sinter drill stem body not sintered completely to required final density.
EFFECT: higher efficiency.
20 cl, 14 dwg
