Evaluation of vegetable oils as pre-lube oils for stamping

摘要

Typical compositions of prelube oils are based on mineral oils or synthetic esters, with a wide range of additives to enhance corrosion inhibition and boundary layer lubrication. Vegetable oils can offer a valuable alternative to mineral or synthetic oils as a source for manufacturing prelube oils for stamping. They are biodegradable and have better intrinsic BL lubricant properties, due to the presence of long chain fatty acids in their composition. This work was aimed at evaluating the performance of some of these vegetable oils under the typical BL conditions found during stamping of car body parts.