Burnishing
The process of finishing a metal surface by contact with another harder metal to improve it. To make smooth or glossy by or as if by rubbing. Specifically without the use of abrasives.
Ball Burnishing
The smoothing of surfaces by means of tumbling parts in the presence of hardened steel balls, without abrasives.
Barrel Burnishing
The smoothing of surfaces by means of tumbling a part in rotating barrels in the presence of metallic or ceramic shot, without abrasives.
See also: Buff.
Subjects: Mechanical Engineering