S wie Schaumbildung und Compound (foaming and compound)

Foaming during vibratory finishing does not occur at all in some processes and occurs to varying degrees in others. Sometimes foaming is desirable, while in other cases unwanted foaming impairs the machining result.

Foaming depends on factors such as the compound itself, but also on water hardness, the amount of water-compound mixture supplied and other attributes.

Grinding – compounds with low foaming:

Low foaming results in shorter processing times and rougher surfaces.

Polishing – Compounds with high foaming:

High foaming results in longer processing times and finer surfaces. The workpieces are better embedded in the abrasive mixture and the intensity of the

workpiece contact is greatly reduced.

With a low supply of water and compound, we generally have less foam, but rougher surfaces and a shorter processing time.

An increased water supply leads to longer processing times and finer, brighter surfaces. If you want finer surfaces but not as much foaming, you can reduce foaming with a defoamer.