FIELD: medicine.
SUBSTANCE: invention relates to method of obtaining products from titanium-based material with coating, representing semi-spherical head of medical semi-spherical cutter. Workpiece from unalloyed titanium is made by cold sheet-stamping stamping and drilling holes with countersinking. Hole centres are placed on two spiral lines with left approach, converging in dome, with obtaining semi-spherical head of medical cutter. External head surface is polished to roughness Ra not more than 0.1 mcm and cutting elements are made by flanging sharpened edges from left side of holes outwards and their sharpening. Nitration with vacuum ion-plasma method to the depth not less than 50 mcm is carried out. Titanium nitrade TiN layers are precipitated until total thickness of said layers is 4-7 mcm with microhardness more than 7000 MPa.
EFFECT: high cutting properties of semi-spherical head of medical cutter and its wear resistance are ensured with preservation of corrosion resistance and biological inertness.
1 dwg, 1 ex
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