Ball burnishing is a cost-effective finishing method to generate a decorative luster on work pieces made from steel, stainless steel and non-ferrous metals. Contrary to high gloss polishing it does not generate a mirror finish but an “orange peel” appearance typical for this kind of mass finishing process.
In the literal sense of the word ball burnishing is not really a mass finishing process. For, the spheres, pins or satellites made from steel, used in place of grinding media, do not have a grinding effect but are masking surface deficiencies by closing them with a hammering effect. That’s why this finishing method is also called “pressure deburring”.
Because of its high bulk density the steel media is slightly peening the surface of the work pieces making them more resistant against fatigue and corrosion.
The specially developed, slightly acidic compounds, generate a relatively bright surface finish.
Ball burnishing is frequently used for treating components for appliances, light metal automobile wheels, bicycle components, coin blanks and many more.
The ball burnishing equipment:
- Rotary vibrators:
Ideal for small to midsize work pieces. Rotary vibrators are highly efficient finishing machines. They can be used as stand-alone systems or as part of automated manufacturing processes.
- Tub vibrators:
Tub vibrators are generally used for work pieces, which are too big to be treated in rotary vibrators. The work pieces are usually loosely tumbling in the tub. Delicate work pieces can be individually mounted to special fixtures. Or they can be individually treated in separate processing chambers created with dividing plates inserted into the tub.
- Centrifugal disk finishing machines:
Turbotron centrifugal disk finishing machines have a 10 times higher processing intensity than rotary vibrators. This makes them particularly efficient. Your work pieces are treated in processing bowls equipped with a rotating bottom. Generally, centrifugal disk finishing machines require short cycle times and are, therefore, highly cost-efficient. With special process technologies these machines can also be used for fine grinding, surface smoothing and polishing.