Abstract: The quadratic curve was investigated as an approximation of the streamline in the steady-state shear zone during metal cutting. Experimentally, a very fine grid of parallel lines (spacing 25 ...

Abstract: Investigations of the incipient cutting process have mainly used ductile materials (lead/brass) at low speeds (≤5 m/s). The present study is more realistic as it uses mild steel (0.45 percent ...

Abstract: Various aspects of the plastic deformation of metals adjacent to the surfaces of tools or dies are discussed. The influence of thermal conduction between the thin plastic layer and the hot ...

Abstract: In order to calculate the stress state at any point in the shear zone, a new method has been developed which incorporates the effects of strain—hardening, strain-rate and temperature. Previous ...

Abstract: The power and forces required to fill a corner cavity in closed-die forging depend on the amount of transient thermal conduction from the heated billet into the cold die. The amount of this ...

Abstract: The pressures required to drive overflow material into a flash gap of annular shape and ever-decreasing thickness are calculated in the presence of thermal conduction into the die. The behavior ...

Abstract: The peak junction temperature has a profound effect on the operational lifetime and performance of high powered microwave devices. Although numerical analysis can help to estimate the peak junction temperature, it can be ...

Abstract: All current analytical methods for calculating junction temperature of field effect transistor (FET) and monolithic microwave integrated circuits (MMIC) devices have assumed a constant uniform temperature at the base of ...

Abstract: An Fe-rich soil from the site of a former leather tannery, heavily polluted with Cr, was studied using a combination of wet chemical analysis, high gradient magnetic separation (HGMS), and electron probe microanalysis ...