Process of Burnishing

  What is Burnishing ?

Roller Burnishing is a Super-finishing process. It is a Cold Working process which produces a fine surface finish by the planetary rotation of hardened rollers over a bored or turned metal surface. Since all machined surfaces consist of a series of peaks and valleys of irregular height and spacing, the plastic deformation created by roller burnishing is a displacement of the material in the peaks which cold flows under pressure into the valleys. The result is a mirror-like finish with a tough, work hardened, wear and corrosion resistant surface. Lapping and Honing is eliminated.

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Advantages of Roller Burnishing
  • Mirror Finish in One Pass,  Accurate Sizing, Close Tolerances, Eliminates Lapping & Honing
  • Improved Metallurgical Properties - Work Hardened Surface, Increase in fatigue strength, 
  • No Additional Machine Investment - attachable to any Standard Machine Tool Already Present in the Shop 
  • Long Tool Life No Operator Skill Required Low Torque & Power Requirements Maximum Parts Interchangeability
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