FIELD: oil-and-gas production.
SUBSTANCE: group of inventions related to rock cutting tools, particularly to boring bit with static cutting tools manufacturing methods. Case of boring bit with static cutting tools made of sintered material of metallurgical dust. The metallurgical dust includes hard particles, containing at least one of the following materials: carbide, nitride, boride, silicide, oxide, and their solid solutions and bundle consisting up to 35% of metallurgic dust weight and including at least on of the following metals: cobalt, nickel, iron and their alloys. Method of bit with static cutting tools case manufacturing, includes the following stages: packing of metallurgical dust, for forming raw not sintered blank of packed dust and forming bit case with static cutting tools, actually consisting of composition material of the sintered blank.
EFFECT: equipment production life time increase, because of increase in endurance, strength and bit case viscosity.
50 cl, 18 dwg
