The formulas for calculation of tool life for maximum production rate and tool life for minimum cost are expanded to include multitool operations and cases in which the total cycle time controlled by the spindle speed is greater than the cutting time. A modification is made to avoid use of conventional overhead rates, which are shown to be invalid in this instance.
Economics of Multitool Lathe Operations
E. M. McCullough
Materials Engineering Department, Deere & Company, Moline, Ill.
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McCullough, E. M. (November 1, 1963). "Economics of Multitool Lathe Operations." ASME. J. Eng. Ind. November 1963; 85(4): 402–404. https://doi.org/10.1115/1.3669908
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