3.3. Are my work pieces so dry after the processing with MQL that they can be further processed without washing?

This mainly depends on the medium used and the quantity applied. In most cases, the parts processed with MQL show a film of moisture at the direct processing areas maximum. In case of some media, these remaining quantities volatilise, and in others, they remain present. Whether this remaining quantity must be washed off or not depends on the requirements of the further processing. In any case, the quantity of foreign matters entering the washing bath is reduced, which extends its lifetime.