A.V. Luikov Institute of Heat and Mass Transfer

220072 Minsk, Brovki str. 15

Technology and equipment for magnetorheological finishing










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Svetlana Skuratova
The A.V. Lykov Institute of Heat and Mass Transfer of the NAS of Belarus A Belarus is offering ready to use technology and equipment for the final treatment of flat, spherical, and aspherical surfaces of optical parts and substrates with root mean square accuracy of the shape up to λ / 150 and surface roughness up to 0.07 nm. They are looking for industrial partners or R&D organizations for commercial agreement with technical assistance or joint venture agreement.
The A.V. Lykov Institute of Heat and Mass Transfer of the NAS of Belarus specializing in research of industrial technologies has developed technology and equipment for magnetorheological finishing (MRF).

MRF is a method of surface treatment based on the rheological properties of magnetorheological polishing fluids (MPF) that is used to produce high-quality parts. In a magnetic field, the MPF becomes a viscoplastic medium, which acts as a polishing pad.

Main advantages of proposed technology and equipment:
- Precision, possibility to conduct treatment of surface without overheating and destruction of the material
- Dimensions of treated components: from 3 mm to 2.5 meters.

The equipment is multi-purpose and allows performing the following technological operations:
- Polishing - removing of the uniform layer from the surface
- Retouching - local surface treatment
- Form change from spherical to aspherical.

The equipment includes MRF computer numerical control (CNC) machines, modules, and liquids for surface treatment:
- 3-5 coordinate CNC machines for MRF, made of natural stone, using linear drives
- 1-2 coordinate modules for modification of machines and coordinate systems
- Magnetorheological liquids on the aqueous and non-aqueous basis.

Examples of MRF use:
- Superfinishing of the surface after traditional polishing or diamond grinding
- Planarization of wafers and thin films processing
- Replacement for the chemical etching process
- Removal of defective surface layers
- Forming of an aspherical surface
- Production of segmented aspherical metal-optical elements.

Treated materials:
- Optical materials (glass, quartz, glass ceramics)
- Optical ceramics (astropyroceramics, Zerodur)
- Laser crystals, including water-soluble (BBO, LiF, KDP, CaF2, MgF2)
- Super hard crystalline materials (SiC, Si3N4, SixNyOz, WC)
- IR materials (zinc chalcogenides ZnS and ZnSe; Ge)
- Semiconductor materials (Si, Ge, GaAs)
- Non-magnetic metals and alloys (Cu, Al, Cr, Ni, stainless steel)
- Ceramic materials
- Thin films and coatings.

The R&D institute from Belarus is looking for a commercial agreement with technical assistance or a joint venture agreement with industrial partners or R&D organizations from EU or non- EU countries (except the US) interested in buying or joint production of the equipment.
Advantages and Innovations
The technology and equipment developed by the Belarus R&D institute allows to achieve accuracy of the shape up to
λ / 150 and surface roughness up to 0.07 nm, while equipment of other companies allows to achieve only accuracy of the shape up to λ / 50 and surface roughness up to 5 nm.
Stage of development
Already on the market
Funding source
State budged
IPR status
Patents granted
Secret know-how
Comments regarding IPS status
Patents of the Republic of Belarus: No. 5845 and No. 17339.

Patent Russian Federation №68409.
Sector group
Aeronautics, Space and Dual-Use Technologies
Nano and micro technologies

Client information

R&D institution
Year established
NACE keywords
C.28.99 - Manufacture of other special-purpose machinery n.e.c.
M.72.19 - Other research and experimental development on natural sciences and engineering
Turnover (in EUR)
Already engaged in transnational cooperation
Additional comments
The R&D Institute is the largest academic institution in the Republic of Belarus, which is engaged in solving fundamental and applied problems of heat/mass transfer, fluid dynamics, power engineering, thermal engineering, etc. and in developing energy-efficient and environmentally friendly technologies and equipment, facilities for power engineering and engineering, agro-industrial complex and construction industry, medicine, as well as for chemical, electron, radio, food, space industry.
Languages spoken

Information about partnership

Type of partnership considered
Commercial agreement with technical assistance
Joint venture agreement
Type and role of partner sought
Type of partner sought: company or R&D organization.

Industrial partner interested in the production of the equipment under joint venture agreement.

Industrial partner or R&D organization interested in using the equipment under a commercial agreement with technical assistance.
Type and size of partner sought
> 500 MNE
> 500
SME 51-250
R&D Institution


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