Tribological Performance of Rosin Acid Additives in Water Based Lubricants

Tribological Performance of Rosin Acid Additives in Water Based Lubricants

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Lubricants for metalworking applications make extensive use of water-soluble additives to reduce friction and wear.In order to do such task, these additives must form a lubricating film that Egg Chalk separates the contact surfaces thus imparting good surface finish to the worked parts.This paper presents a study on the tribological performance of aqueous solutions of rosin acids.

Tests were carried out on a pin-on-disk tribometer for a steel-aluminum contact CINNAMON while keeping load, entrainment speed, sliding distance, temperature and concentration of the additive constant to study the lubrication effect of the additive-containing solutions.Chemical analysis of the wear track indicates the in-contact formation of an organic film caused by the additive interaction and aluminium surface.A substantial friction and wear reduction is observed.