Cutting oil with vegetal oil

Abstract

Methods and compositions relating to a cutting oil including vegetal oil such as Pinhao Manso vegetal oil, which may be applied to a metal such as aluminum or gray cast iron during milling, tapping, and/or drilling operations.

We claim: 
     
         1 . A cutting oil comprising Pinhao Manso vegetal oil in an amount of at least about 30 Wt % of the cutting oil. 
     
     
         2 . The cutting oil of  claim 1 , wherein the cutting oil comprises about 40 wt % to about 70 wt % Pinhao Manso vegetal oil. 
     
     
         3 . The cutting oil of  claim 1 , comprising synthetic esters in an amount of about 5 wt % to about 20 wt % of the cutting oil. 
     
     
         4 . The cutting oil of  claim 1 , comprising saturated and/or unsaturated fatty acids in an amount of about 10 wt % to about 30 wt % of the cutting oil. 
     
     
         5 . A method of metal processing, comprising:
 applying a cutting oil to a metal, wherein the cutting oil comprises Pinhao Manso vegetal oil in an amount of at least about 30 wt % of the cutting oil.   
     
     
         6 . The method of  claim 5 , wherein the cutting oil comprises Pinhao Manso vegetal oil in an amount of about 40 wt % to about 70 wt % of the cutting oil. 
     
     
         7 . The method of  claim 5 , wherein the cutting oil is applied to a metal for milling, tapping, and/or drilling operations. 
     
     
         8 . The method of  claim 7 , wherein the metal is aluminum. 
     
     
         9 . The method of  claim 7 , wherein the metal is gray cast iron.