METHOD FOR ADDITIVE PRODUCTION OF POROUS TITANIUM NICKELIDE IMPLANTS WITH CONTROLLED MECHANICAL CHARACTERISTICS AND BIOCOMPATIBILITY Russian patent published in 2025 - IPC B22F10/28 B22F10/34 B22F10/38 C22C1/08 

FIELD: performing operations.

SUBSTANCE: invention relates to additive manufacturing. Disclosed is a method for the additive production of porous titanium nickelide implants with controlled mechanical characteristics and biocompatibility, including a selective laser melting (SLM) process for constructing articles layer by layer using titanium nickelide powder, wherein titanium nickelide powder is preliminarily subjected to air-centrifugal classification and pneumatic circulation grinding, using a porous lattice with a given variable porosity from 35% to 52%, while adjusting the radius of the mesh cells from 0.25 to 0.40 mm, mesh cell height from 0.5 to 0.8 mm and mesh thread radius from 25 to 32 mcm, using optimized parameters of laser action at laser power from 135 to 165 W, scanning speed of 1000 mm/s and distance between melting points of 0.012 mm.

EFFECT: invention provides a method for additive production of porous implants from titanium nickelide alloys (TiNi), which enables to control porosity and mechanical characteristics of implants, ensuring their compliance with requirements for structural compatibility with patient's bone tissue.

1 cl, 7 dwg