Technology and equipment for ICE crankshaft pneumodynamic strengthening

It's used for pneumodynamic strengthening of crankshaft fillets in diesel engines D-240 and D-260, restored by thermal spraying coatings.

Competitive advantages:

  • increase in the depth of the cold working layer by 30...38%
  • increase in the tensile strength of the crankshafts of diesel engines when bending by 1.7...2.0 times
  • reduction of the crankshaft shift factor by 2.0 times
  • increased durability of restored and strengthened crankshafts by 2.0 times

Features of the development:

The equipment allows to use a steel ball as a working material for increasing the maximum unit pressure of the rolling by 26...32%, which leads to the increase in the depth of the cold working layer by 30...38%.

 

A set of equipment for pneumodynamic strengthening of ICE crankshafts:

  • pneumodynamic installation
  • pneumodynamic rolling machine

 

Application

Instrument and mechanical engineering In the Republic of Belarus - gear welding, in Russian Federation - electron beam welding installations, coatings, liquid, and solid-state hardening, composite material sintering.

 

Performance:

  • rolling machine working medium - steel ball ?3
  • the pressure of the pneumatic circuit, MPa - 0.6
  • rolling speed, m/s-26.5
  • the depth of the cold working layer, mm-0.55...0.65
  • maximum unit pressure of the rolling, MPa - 500...650
  • the cost of strengthening one crankshaft D-240 when reaching the design capacity, thousand BYN/ USD-201.7/ 93.8
  • development costs payback period - 1.8 years

 

Application:

Manufacturing and introduction into the repair production of JSC "Vitebsk Motor Repair Plant".

 

Suggestions:

  • development of design and technological documentation for the implementation of the pneumodynamic crankshaft fillets strengthening in diesel ICE
  • participation in co-production with the transfer of technology (knowledge)
  • research and production co-operation in the implementation of pneumodynamic strengthening of diesel ICE crankshaft fillets

 

Contact information:

Aleksandr Kirienko
Sergei Zavistovsky
211440, Belarus, Vitebsk region, Novopolotsk, 29 Blokhin Street, "Polotsk State University"
Telephone: +375 214 53 97 13;
Fax: +375 214 53 06 79;
E-mail: .