Main Sector of relevance\IRC classification 8. Industrial Manufacturing, Material and Transport Technologies

8.23 Resource-saving technologies and transverse wedge-type rolling

Developers’ contact information

State Scientific Institution “The Physical-Engineering Institute of the National Academy of Sciences of Belarus”, Metal Science Department, Laboratory for Microcrystalline and Amorphous Materials
10 Academician V.F.Kuprevich Street, Minsk BY-220141

V.Y. Schukin, Candidate of Engineering Science
Tel.: +375 (17) 267-45-85

Summary

Transverse wedge-type rolling is a high-performance resource saving technology of under-pressure metal treatment with metal recovery (MR) amounting to 0.8-0.98. One part rolling mill designed by State Scientific Institution “Physics and Technology Institute of the Academy of Sciences of Belarus” substitutes not less than 5 turner units and when used in dual shift mode saves up to 800 tons of metal a year. The equipment is compact and requires only small working area, no special rooms or foundations.

Description

Transverse wedge-type rolling (TWR) is a high-performance resource saving technology of under-pressure metal treatment with metal recovery (MR) amounting to 0.8-0.98. The TWR method is used to manufacture prolonged axis parts rotation body type formed by metal redistribution along the stock axis carried out during axis transversal movement of a flat wedge-type tool. There are a lot of different part configurations: cylinder, cone and spheroidal surfaces with various grooving and overhangs. The resulting parts are characterized by good lasting and durability operating qualities.
Transverse wedge-type rolling designed by State Scientific Institution “Physics and Technology Institute of the Academy of Sciences of Belarus” is available in a number of standard size versions, diameter and length ranges being 5 to 120mm and 30 to 1000mm, accordingly.

Transverse wedge-type rolling mill designed by SSI “Physics and Technology Institute of the Academy of Sciences of Belarus” PM 5.150 was put into operation at “BELCARD” (Grodno propeller-shaft plant) in 2006.

Technology type

• Process
• Other:
  Equipment.

Technical advantages and economic benefits

• easy to produce and low in cost flat wedge-type tool replacement parts which can be manufactured with any general-purpose milling or grinding machine;
• high precision (±0,01…±0,5 mm) of rolled parts sizes;
• long-lasting operation of flat wedge-type tools (up to 500,000 parts);
• low metal consumption;
• low self-cost of rolled parts;
• easy operation and adjustment of the rolling mill;
• fast equipment realignment for production of new types of parts, completely automated process.

Technology differentiation and uniqueness

Payoff period is less than one year.

Context in which technology was identified

Hannover industrial fair, Moscow International Salon of Innovations and Investments, “Belpromexpo”, “Vietnam EXPO”, International Indian trade fair.

Technological keywords

Plastic deformation, transverse wedge-type rolling.

Development Stage

• Currently in use/production

Intellectual property rights

• Patent pending
• Specific Patent Information:
  
  • Patented useful model 4213 RB, IPC В21 H 1/18. Flat tool mill for transverse wedge-type rolling/ G.V. Kozhevnikova, N.V. Susha, Kwon Se Her, Je Sung Her − u 20070470; Application 26.06.07; Issued 28.02.2008 // Official bulletin / State Patent Committee of the Republic of Belarus. − 2008. − No 2. − p. 96.
  • Patent 11025 RB, IPC В21 H 1/00. Transverse wedge-type rolling mill for heated stock/ V.Y. Schukin, G.V. Kozhevnikova, Kwon Se Her, Je Sung Her – a20060119 Application 14.02.06, Issued 22.05.2008 // Official bulletin / State Patent Committee of the Republic of Belarus. − 2008. − No 4. − С. 167.
  • Patented useful model 4577 RB, IPC В21 H 1/00. Transverse wedge-type rolling mill for heated stock/ Schukin V.Y., Kozhevnikova G.V. –u20080040; Application 22.01.08; Issued 02.05.2008 // Official bulletin / State Patent Committee of the Republic of Belarus. − 2008. − No 4. − p. 167.

Range of applications

It is applied in manufacturing of parts for motor-vehicle construction, machine-tool building, instrument-making industry, agricultural machine-building, tractor and aircraft, motor and cycle, mining and nuclear power industries. It allows processing of almost every construction steel as well as brass, titanium, zirconium and nickel.

Classifier Used at the EU Innovation Relay Centres

• Industrial Manufacturing, Material and Transport Technologies

Preferable Regions

• North America
• Europe
• Asia
• Australia

Practical experience

State Scientific Institution “Physics and Technology Institute of the Academy of Sciences of Belarus” carries out fundamental research on plasticity and endurance theory, constitutional and structural changes in metals and alloys, impulse and electrophysical metal treatment methods, develops new production and treatment processes for engineering materials and products. Theoretical foundation of the transverse wedge-type rolling method and design of proper tools and equipment is the main activity of the Department for process-oriented deformability. The institute created a school of transverse wedge-type rolling specialist which is recognized as leading all over the world. Innovative cooperation activities engage universities and research institutes in Russia, the USA, China, Poland, Germany, Turkey, Brazil, India, South Korea, Vietnam, Rumania, and the Czech Republic.

Environmental impact

Minimal.

Type of collaboration sought

• Other:
  
  • Equipment supply, including second-hand.
  • Transfer of drawings for tools and equipment.
  • Specialist training.
  • Servicing.
  • Know-how transfer.

Terms and restrictions

—

Available technical assistance

• Documentation
• Personnel