How can I clean the aluminum foil products when they are punched out?
Quenching oil cold? The same oil, ah, the supply of this quenching cooling oil companies generally sell their corresponding cleaning agent. Just pay attention to the influence of cleaning agent on aluminum products.
There are many kinds of drawing oils, and there are usually special cleaning agents. You can specifically ask your drawing oil supplier, according to the oil purchase.
Personal advice that you use volatile stamping oil, there is no residual worry
