The invention relates to the technical field of
cutting fluids for metals, especially to an environmental-friendly water-based
cutting fluid. The environmental-friendly water-based
cutting fluid comprises a water-based basic solution, a
cleaning agent, an oiliness agent, an antirust agent, a dimeric acid
rare earth compound, a
copper alloy corrosion inhibitor, an anticorrosive agent, a defoaming agent, an aluminum
alloy corrosion inhibitor and a stabilizing agent of the aluminum
alloy corrosion inhibitor. The
cutting fluid provided by the invention has good versatility, is applicable to a plurality of metals and
processing of aluminum alloy parts, exerts an excellent corrosion resistance effect on a
copper alloy and an aluminum alloy and can effectively prevent the color of a sensitive aluminum alloy from changing; the
cutting fluid has an excellent lubricating property, thereby ensuring
processing precision and the service life of a cutter; the
cutting fluid has an excellent antirust property, thereby preventing a workpiece and expensive
machine tool equipment from rusting; the cutting fluid has protruding anticorrosion capability and
hard water resistance; and the cutting fluid can be cyclically used for a long time, does not contain poisonous and harmful substances like
nitrous acid, is beneficial for the environment and health, has good
liquid waste disposal performance and can be treated as common
industrial waste water.