Abstract: Tough-pitch copper was drawn and extruded in multi-pass operations to effective strains of 1.53 or area reductions of 80 percent. It appears that residual stresses and mean pressure did not ...

Abstract: Annealed OFHC copper and SAE 1018 steel were reduced by multipass drawing from diameters of 25.4 mm (and smaller) to 11.8 mm. A comparison was made of the experimental draw stresses and those ...

Abstract: Oxygen-free copper was extruded in the form of short solid cylinders (25 mm dia × 25 mm long) with reductions of approximately 20 percent and then followed by a compression test restoring ...

Abstract: The orthogonal metal-cutting process has been studied. It was found that the Ernst and Merchant solution, through the application of the limit-load theorems, appears to be a limiting solution ...

Abstract: The orthogonal metal-cutting process was reanalyzed and the several existing theories are discussed. Alternate methods of presentation of the theories were derived in terms of energy ratios and ...

Abstract: Metal-cutting studies were made with free-cutting steel SAE 1112 and alloy steel SAE 4135 in the as-received condition with artificially controlled tool-chip contact areas and flank contact areas ...

Abstract: It is suggested that a metal-cutting test can be utilized as a high-strain-rate property test at strains larger than those normally achievable in conventional tests. The strain and strain-rate ...

Abstract: The Dorn maximum load criterion and the Swift criterion for plastic tensile instability of a flat sheet stretched by in-plane forces are discussed. Both hypotheses are applicable when an initial ...