BURNISHING
ABSTRACT
Burnishing process is one of the fine finishing operation. It involves plastic deformation of surface layer to enhance the surface integrity and function utility of a component. Burnishing can perform either with ball or roller.
Burnishing process is classified into two categories, based on deformation elements and based on motion of the tool, namely ball burnishing, roller burnishing, impact burnishing, vibratory burnishing, ultrasonic burnishing and normal burnishing.
To obtain the best surface finish, the optimal principle process parameters must be ascertained. The burnishing force is the main process parameter other process parameters are feed rate ball material and diameter.
This seminar report deals with various types of tools, its constructions and working principles, speed and feed rate charts, surface finish and stock allowance charts, advantages and disadvantages of process, its application in mechanical fields.
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