C.J. Van Tyne

TL;DR: In this paper, an adaptable die design method is used to determine streamlined die shapes, which will minimize the pressure required for the extrusion process by using a Legendre polynomial series for representation of the die surface.

TL;DR: In this paper, the softening rate of three different hot and warm forging die steels (FX, 2714, and WF) was determined by the change in room temperature hardness.

TL;DR: In this paper, six kinematically admissible velocity fields are developed for use in upper bound models for axisymmetric extrusion through various dies, including adaptable dies.

TL;DR: In this article, induction dilatometry was performed on 5150 steel with ferrite-pearlite and tempered martensite initial microstructures to assess effects of experimentally controlled prior microstructure and heating rate on austenitization kinetics.

TL;DR: In this article, a parametric analysis of the bending of oval tubes without a mandrel is presented, where the deformation characteristics such as wall thinning, strain, side-bulge, flattening, and hoop-buckle for both circular and oval tubes are examined.