METHOD OF PRODUCING BIMETALLIC OSTEOINTEGRATED IMPLANTS Russian patent published in 2025 - IPC B32B15/02 B22F3/105 B22F10/28 A61F2/02 

FIELD: metallurgy.

SUBSTANCE: invention relates to powder metallurgy and additive manufacturing and concerns a method of producing bimetallic osteointegrated implants from titanium alloys and unalloyed titanium. Method involves making, using bimetallic 3D printing, a central inner part of an implant from a metal powder composition based on a high-strength titanium alloy and an outer part of the implant in contact with bone tissues, from a metal-powder composition based on undoped titanium in one technological process of layer-by-layer laser fusion, wherein both metal-powder compositions are characterized by fluidity of not more than 25 s, the outer part of the implant has thickness of 1 to 1.5 mm, process is carried out in high-purity argon gas using a fibre laser with radiation wavelength of 1064 nm at platform preheating temperature for metal powder composition based on unalloyed titanium 150 °C and for metal powder composition based on high-strength titanium alloy 180 °C.

EFFECT: invention provides biocompatibility of the implant with preservation of high mechanical characteristics of the product and simplification of the technology of manufacturing such medical products.

4 cl, 1 tbl