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Burnishing tools are used to impart a gloss or fine surface finish, often in processes that involve the cold working of metal surfaces. Burnishing tools are also used for the sizing and finishing of surfaces. A burnishing tool is used as a finishing tool. A burnishing machine is widely used for tool polishing, metal finishing, and ball burnishing. A burnishing tool develops a finished surface on turned or bored metal surface by performing continuous planetary rotation of hardened rolls. The rotation of the rolls increases the yield point of the soft portion of the metal surface at the point of contact. This point of contact results in the deformation of the metal surface to generate a finished metal surface. There are many different types of burnishing tools. Examples include a roller burnishing tool and external taper shaft burnishing tool. A roller burnishing tool is a cold burnishing working process tool and is used for generating self-feed and non-feed design surfaces. An external taper shaft burnishing tool is a burnishing tool used for generating tape shafts in a workpiece. Other burnishing tools are commonly available.

There are several ways in which burnishing tools function. A burnishing tool works on the principle of planetary system having hardened and tapered rolls, which are placed evenly in a retaining cage of a burnishing machine. A workpiece is tightly held in the burnishing tool and the tool mandrel work applies pressure on the hold piece to finish the workpiece surface. Specifications of a burnishing tool vary depending on the type of the burnishing tool used for workpiece. The normal bore diameter of a burnishing tool can range from 5 mm to 26 mm. The adjustment range of burnishing tools depends on bore diameter. The adjustment range for 5 to 7.50 mm bore diameter ranges from -0.1 to +0.20. The shank size for a ball burnishing should be MT - 1 and the holder number for a burnishing tool should be H1. Burnishing tools are designed and manufactured to meet most industry specifications.

Burnishing tools are used in many applications. Examples of usage of burnishing tools include use in valve guides, valve rods, motor end covers, and fan rotor shafts. In addition, burnishing tools are also used in brake cylinders, hydraulic, pneumatic, and master cylinders. Burnishing tools should adhere to the standard used in the design of COBUM 3050 burnishing machines.

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Tanis Incorporated
Tanis Incorporated
Tanis Incorporated
R. S. Hughes Company, Inc.