Metal processing oil in the tool surface between workpiece and form a layer of lubrication film can reduce or avoid direct contact with the workpiece, reducing the level of friction and cohesion, which reduces tool wear, improve the surface quality of the workpiece.
Cutting metal machining oil outflow in the section in the process took a lot of heat, thus reducing the temperature of the workpiece and the tool, tool durability, reduced thermal deformation, improving processing accuracy. But metal machining oil had little effect on tool-chip interface, tests showed that metal working oils can reduce the temperature of the tool-chip interface area, does not reduce the maximum temperature, general method for casting cooling chips. Metal machining oil injection tool behind the Deputy, the cooling effect of the tool and the workpiece will be better.
In turning, milling, grinding, drilling and other processing, often pouring and spraying of metal processing oils to clean the machine chips and debris and cuttings and debris away.
Joined the antirust additives in metal machining oil, it can react to form a protective film on the metal surface, thus play the role of rust.