Warm compression and extrusion tests of aluminium

The effects of temperature and low strain rate on warm compression and extrusion of aluminium over a temperature range of 30–250 °C were experimentally investigated. For the compression and extrusion tests investigated, the respective true stress–true strain curves and the extrusion pressures were o...

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Veröffentlicht in:Journal of materials processing technology 2003-05, Vol.136 (1), p.7-11
Hauptverfasser: Onawola, O.O, Adeyemi, M.B
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Adeyemi, M.B
description The effects of temperature and low strain rate on warm compression and extrusion of aluminium over a temperature range of 30–250 °C were experimentally investigated. For the compression and extrusion tests investigated, the respective true stress–true strain curves and the extrusion pressures were obtained that are empirically related by power-law and exponential-law equations, respectively. The ratio extrusion pressure/yield stress with die extrusion temperature is found to be higher for circular-shaped opening die than for square-shaped opening die of equal reduction in area. The effect of die temperature on the mechanical properties of extruded aluminium products is also presented.
doi_str_mv 10.1016/S0924-0136(02)00462-4
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subjects Aluminium
Extrusion tests
Warm compression
title Warm compression and extrusion tests of aluminium
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