Effect of different additives in metal working fluids for tribological performance of stamping

Different types of additives used added in two different base metal working fluids were tested in metal sheet-tool (WC-Co) contact. The results show that certain additives can significantly reduce coefficient of friction, while for others the effect is very limited or even negligible. In addition to additive type/group the important role plays also the presence of active sulfur as well as the base metal working fluid used. The AFM study further reveals differences in boundary film properties that prevail over base metal working fluid properties and govern friction performance. It is also shown that certain additives can reach the same friction performance as full-formulated straight oils.

This contribution has been presented on WTC (World Tribology Conference) in Lyon.

The abstract can be found here.