Through Burnishing processes workpieces can improve their size’s tolerances, shape, surface finish, or surface hardness, etc. It is essentially a forming operation that occurs on a small scale. The benefits also include: combats fatigue failure, prevents corrosion and stress corrosion, textures surfaces to eliminate visual defects, closes porosity, creates surface compressive residual stress.
Our special machines series have been projected and developed for roller burnishing technology (also called surface rolling), which is used on cylindrical, conical, or disk shaped workpieces. The tool resembles a roller bearing, but the rollers are generally very slightly tapered so that their envelope diameter can be accurately adjusted. The rollers typically rotate within a cage, as in a roller bearing.
Typical applications for roller burnishing include hydraulic system components, shaft fillets, ball pins, sealing surfaces and other components where very strict control of size and very smooth and shiny surfaces are requested.