Cutting Tests With Cemented-Tungsten-Carbide Lathe Tools

This investigation was made for the purpose of developing a method of testing cemented-tungsten-carbide lathe tools under heavy duty and to extend to the new cutting material some of the laws originally developed by Taylor and his associates for cutting with carbon- and high-speed-steel tools. Relations were determined between the speed, feed, depth of cut, and tool life for a selected form and size of tool. All tests were made dry in cutting 3.5 per cent nickel-steel forgings, heat-treated to give tensile strengths within the range of 85,000 to 110,000 lb. per sq. in. The results are presented in both graphic and tabular forms.