SHOT PEENING
This process
has the purpose of increasing resistance to fatigue and corrosion of mechanical
parts. Essentially, it consists of submitting the most exposed areas of a
mechanical part to the bombardment of steel or ceramic spheres of suitable
diameter. The transformation of part of the kinetic energy possessed by the
spheres into plastic deforming energy on the surface material induces a state
of tensional compression that notably increases resistance capacity to cyclical
loads. This control of induced stress, using X Ray diffraction, optimises
the process parameters and considerably improves performance.
Mechanical parts
usually submitted to shot peening:
| - sprocket wheels |
| - transmission shafts |
| - gas turbine blades |
| - steam turbine blades |
| - gas turbine discs |
| - engine shafts |
| - connecting rods |
| - equalisers |
| - springs |
| - wheels |
 |
For
doing the process of shot peening 2 Effe engineering uses anthropomorphous
robots with six robotis arms.
2 Effe engineering is able to undertake shot peening on the premises on members
of big dimensions, as Pelton, Kaplan and Francis wheels, using the methodology
of ultrasonic shot peening; it allows to intervene rapidly in a clean and
organised way.
Particular of Pelton Wheel
Shot Peening
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