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FABRICATION METHODS (TECHNOLOGIES)
Principle fabrication methods and technologies used in manufacturing:
- Mechanical treatment
- Metal forming
- Electro-erosion treatment
- Casting
- Heat treatment
- Thermochemical treatment
- Galvanization
- Nondestructive testing
- Carbon and enamel removing, units and assemblies repairing
- Videotape recording
Currently available metal-cutting equipment provides the following types of high-alloy steel and nonferrous alloy treatment:
MECHANICAL TREATMENT
- Turning up to 1000 mm diameter, including the NC (numerical controlled) machine processing, as well as 3 and 4 coordinate turning centers.
- Milling, boring machines up to 1000 mm, including 3, 4, and 5 coordinate NC machine centers processing.
- Tooth milling machines and tooth slotting machines
- Grinding, tooth grinding and coordinate grinding machines
- Round and plane finishing machines
PRESSURE TREATMENT
- Hot die forging
- Separation sheet die forging
- Bending
ELECTROERROSION TREATMENT
- NC cutting processing of workpieces with sizes 350õ250õ250 mm
- Sewing including NC processing
CASTING
- Aluminum and magnesium alloys casting in metallic (chill) and sand forms
- Steel casting in sand forms and by melting models
- Iron sand casting
- Bronze chill casting using directional crystallization technology
HEAT TREATMENT
- Constructional steel type Ç0KHGSA, Ç0KHZVA
- Corrosion-resistant (stainless) steel type 13KH15N4AMÇ-SH (EP310)
- Tool steel type KH12F1-SH
- Heat-resistant roller-bearing steel brands type EI347-SH, SHKH15
THERMOCHEMICAL TREATMENT
- Nitration, carburization, carbonitriding of the alloy constructional steel type
16KH3NVFMB-SH
(DI39-SH), 20KHÇMVF-SH (EI415-SH), Ç0KHÇVA - Nitration of stainless steel type 12KH18N10T, EI961-SH
- Heat treatment of aluminum cast alloys and strained aluminum alloys
- Diffusion welding: steel + bronze (Z0KH3VA + BrO10S2NZ) and (20KHZMVF + VB24N)
GALVANIZATION
- Cyanic copper coating, silver plating, cadmium coating
- Cathodic chrome coating of steel
- Coating cooper-silver–cadmium (3-layers coating)
- Chrome plating
- Anodic oxide coating of aluminum alloy parts, hard anodic oxide coating of aluminum alloys
- Anodic oxide coating in difluorid ammonium of the magnum alloys processed parts
- Chemical passivating and electrolytic polishing of corrosion-resistant steel
- Chemical and electrochemical nickelizing
NONDESTRUCTIVE INSPECTION TECHNICS
- X-ray inspection of cast body parts and workpieces processed of bronze and welding seams
- Magnetic powder inspection of steel parts made from ferromagnetic alloys
- Eddy current inspection of parts made from aluminum and magnesium alloys
- Sorting out of parts and intermediate products into material grades and estimation of quality of heat treatment on base of the electrical conductance
- Supersonic inspection technique of deformable materials and quality estimation of diffusion welding
TECHOLOGIES OF CARBON DEPOSIT CLEANING AND ENAMEL REMOVING, UNITS AND PARTS REPAIRING
Plastic crush is applied for parts cleaning from burns and carbon deposit and maintenance contaminations. Plastic crush is more firm then organic one (crushed fruit kernel). Plastic crush consists of irregular shape sharp small grains produced from the specially selected plastic grades that were tested and are satisfying the technique requirements.
The used repairing technologies provide the formation of residual compression stress in the surface layer.
The repairing technology of parts hardened by surface plastic misshaping minimizes the removal of metal from the surface to the necessary one and to carry out the repeated hardening to the size of the removed layer. This technology increases the number of permissible repairs and decreases the number of delivered group sets of spare parts.
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| Wheel cleaning (two options) |
Carbonized piston and valves cleaning (two options) |
Enamelremoving |
VIDEOTAPE DATA
Simulation of the aborted flight of the airplane TU-204 at the test bench no. 2 OAO AC "Rubin"
vzlet.wmv - 41.2 MB