O.V. Roman Powder Metallurgy Institute offers customers an equipment for selective laser sintering for the production of three-dimensional products from metal and polymer powders in a step-by-step synthesis mode under a manufacturing agreement and is looking for partners interested in a distribution services agreement.

The equipment for selective laser sintering is designed to produce three-dimensional (3D) products from metal and polymer powders in a step-by-step synthesis mode, including for producing individual medical implants of complex shape from spherical titanium powder, and also allows for the engraving of stamps and commemorative signs, marking, microwelding, perforation and shaped cutting of sheet materials.

The process of synthesizing three-dimensional products consists of sequential sintering using pulse-periodic laser radiation of individual layers of powder particles over an area of ​​a given configuration and subsequent sintering of such layers to each other.

The process takes place on a vertically moving process platform placed in a working chamber with a protective argon atmosphere. The optical system of the selective laser sintering unit allows for scanning with a laser beam in a horizontal plane along a given trajectory, monitoring the sintering zone using a video camera, and monitoring the temperature in the laser exposure zone using a sintering process control system.

Technical characteristics of the equipment for selective laser sintering:

laser radiation wavelength	1.06 μm
laser pulse repetition rate	50 Hz
average laser pulse power	150 W
laser pulse duration	3-6 ms
maximum product dimensions	200x200x50 mm
optical system movement speed	100-1000 mm/min
positioning accuracy	20 μm
lens focal length	250 mm
focal spot diameter	200-500 μm

More information on the Institute's website.

The virtual model of the product is prepared in CADCAMPDM systems that support the solid-state (3D-solid) modeling mode. Software control of the installation operation, setting of technological modes and their monitoring in real time is carried out using a control computer.

The Institute's areas of activity.

Fundamental research:
- development of scientific principles for controlling the properties of metal-based composite powder materials with inclusions of a hard (soft) phase using computer modeling of the features of their macrostructure and behavior under external force and temperature effects;
- development of scientific principles for the creation and methods for controlling the structure and properties of nanostructured composite materials for various functional purposes;
- development of scientific foundations for creating permeable materials with an organized structure obtained by powder metallurgy methods for combustion, filtration and catalysis processes;
- study of heat and mass transfer processes in porous powder materials with an irregular pore structure;
- development of scientific foundations for obtaining composite powders of a given chemical and phase composition by mechanical alloying, granulation, self-propagating high-temperature synthesis (SHS) and application of functional protective coatings from powder materials;
- study of the strengthening mechanism of thermally sprayed composite coatings when treated with highly concentrated energy flows;
- mathematical modeling of the process of deformation and stress formation in a welded structure;
- development of theoretical and technological foundations for obtaining economically alloyed welding materials and components for their production;
- study of metallurgical, thermal deformation processes during high-speed plastic deformation of materials for obtaining welded joints and materials (friction stir welding);
- conducting fundamental scientific research on the impact of pulsed processes on various materials, the interaction of compact and discrete powder bodies at various loading rates, including due to the energy of explosives;
- development of a mathematical and computer model of the interaction of a melt particle with a solid surface under conditions of changing environmental parameters and properties of the formed coatings;

Applied research:
- development and implementation of new technological processes, materials and equipment in the field of creating functional ceramics, porous materials for various purposes, layered and cast composite materials using high pressures and various loading rates;
- development of low-alloy powder steels with a nanosized dispersed structure of the ferrite-martensite type, obtained using the mechanisms of interparticle and intergranular sliding in the processes of pressing and heat treatment, and the production of products from them;
- production of nanosized additives based on aluminum, copper, silicon, manganese, chromium, phosphorus, carbon and other elements by mechanical activation, SHS, hydrothermal synthesis;
- production of capillary-porous powder materials with an irregular pore structure based on copper, nickel, titanium, aluminum to intensify heat and mass transfer processes in the cooling systems of new electronic devices, components of personal computers, laptops;
- production of highly efficient porous and highly porous cellular materials with functional coatings due to the creation of a composite microstructure of the metal-ceramic, polymer-ceramic, ceramic-ceramic type (filter elements, membranes) for energy-saving processes of cleaning liquids and gases;
- production of hard alloys with the introduction of nanocrystalline carbides and oxides of transition metals for the manufacture of forming tools;
- development of technologies for the production of carbon-carbon materials and products made from them;
- study of processes of high-speed plastic deformation of materials during friction stir welding;
- development of new composite powder materials with high performance properties: high-density, capillary-porous, wear-resistant, radio-absorbing, heat-shielding, etc.

Consumers interested in purchasing a selective laser sintering system for the step-by-step synthesis of three-dimensional products from metal and polymer powders under a manufacturing agreement.

Partners interested in purchasing a selective laser sintering system for the step-by-step synthesis of three-dimensional products from metal and polymer powders under a distribution services agreement.