US Patent 10946490 Method for supplying cutting oil

A method for supplying cutting oil which is able to attain the above object by adopting the following processes in a machine tool for cutting work pieces.a. setting of individual cutting times to each work piece and selection of cutting oil to be used,b. setting of a quantity of the cutting oil supplied per unit time to a cutting area where the cutting oil selected by the process a is used,c. supplying the cutting oil to a cutting-oil tank, with a state kept that the cutting oil remains in the cutting-oil tank, andd. supplying the cutting oil to the cutting area on cutting each of the work pieces by setting a quantity of the cutting oil as a quantity obtained by multiplying individual cutting times according to the process a with a cutting quantity per individual unit times according to the process b.