THE INCREASING OF MECHANICAL PROPERTIES （力学性能的提高）.pdf

th 6 International DAAAM Baltic Conference INDUSTRIAL ENGINEERING 24-26 April 2008, Tallinn, Estonia. THE INCREASING OF MECHANICAL PROPERTIES TO ISOSTATICALLY COMPACTED PIECES MADE FROM DURALUMIN ALLOYS BY APPLYING HEAT TREATMENTS Geamăn, V.; Jiman, V. Stoicănescu Maria Abstract: The aluminum alloys are offering especially solid solution supersaturated in the highest degree of hardness by heat copper, is done much efficiently in the treating. The development of the range of case of alloys with good plastic these alloys is determined by the fact that deformability. Besides these alloying is enlarging the possibilities of particularities, when choosing the heat precipitation hardening. treating conditions, it must be considered The particularities of the final heat also the shape and dimensions of the treatment made to pieces from duralumin samples. alloys – obtained through plastic deformation – especially through forging or 2. EXPERIMENTAL PROCEDURE extrusion, are determined by the characteristics of the plastic deformation The particularities of the final heat structure. treating method made to peaces from The paper presents the influence of the heat duralumin alloys are determined by the treatment applied to pieces made from characteristics of the structure as: high duralumin alloys, before and after isostatic granulation, microforging cracks, compaction. There are