Abstract
Turning tests on pure aluminum 1100-H14 and seven aluminum alloys were made to develop the formula for the tangential cutting force as a function of the material constant, the feed in inches per revolution, and the depth of cut in inches, when cutting dry, with a solid high-speed steel tool ground for turning aluminum. Equations for each metal have been developed and it is shown that the constants and exponents vary for each metal. Unit net power at the cutter has been computed for several sizes of cut for each metal and the values for a light cut and a medium-size cut have been plotted against each of the mechanical properties of the materials. These data show that knowing the Brinell hardness, the ultimate or yield strength of the metal or the shear strength, values of the unit net horsepower at the cutter can be computed with considerable accuracy.
