General Information on Burnishing Tools

Burnishing is a Cold Rolling Process without actual removal of metal. Roller Burnishing Tools helps to improve surface finish, dimensional accuracy and work hardening can be affected without removing the metal. Burnishing is a finishing operation and done on parts which are turned, bored, reamed or ground. When a component is burnished it gets a mirror finish.

Advantages of  Burnishing Tools:

• Usage of Burnishing Tools is a cost effective method to achieve a good surface finish.
• Burnishing on a CNC lathe can be less expensive than standard grinding.
• Burnishing Tools can provide a surface finish between 2 to 4 micron on a turning or milling machine.
• This removes the need for secondary surface operation like grinding.
• The rolling method also has a work hardening effect for many material types, resulting in increased surface harder.
• A harder surface will resist premature wear and improves corrosion resistance.
• Size control is improved by burnishing.
• Use of a roller burnishing tool has the possibility of consistently attaining 0.0005” tolerance.
• In some situations an improvement in part roundness can also be obtained.
• These tools can be used on non-CNC machines such as automatic chuckers and multi-spindle machines.
• The accuracy of the roller burnishing method is a function of the tool design, not the accuracy of the machine that is holding the tool.
   

Some burnishing tool manufacturers : Abhi Burnishing Tools