الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The factors affecting the behavior of metals under plastic deformation process and the literature related to hot extrusion have been reviewed with special reference to alamunum the different theoretical and empirical approaches to the extrusion problem haercial purity aluninium and as cast aluminum billets”e been also discussed a sub-press is designed to withst and 2 extrusion-pressures up to job kg/w a special electric heater included around the sub-press to heat it to the required extrusion temperatures up to 600 c the effects of the extrusion temperature and extrusion ratio on the extrusion pressure the metal flow and the properties of the extrlied product are studied two types of materials are tested namely c.