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Investigation of extrudability of different aluminum alloys by using the method of hot extrusion

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dc.contributor Graduate Program in Mechanical Engineering.
dc.contributor.advisor Altıntaş, Sabri.
dc.contributor.advisor Yılmaz, Metin.
dc.contributor.author Çıtak, Hasan Cem.
dc.date.accessioned 2023-03-16T11:18:02Z
dc.date.available 2023-03-16T11:18:02Z
dc.date.issued 2005.
dc.identifier.other ME 2005 C58
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/15188
dc.description.abstract Aluminum extrusion is a very important forming process in metal industries. Byusing different dies and technologies, high variety of products can be produced byusing the method extrusion. Extrudability is an important parameter for extrusion processes. For evaluating extrudability of a material not only force and energyrequirements must be investigated but also surface quality and mechanical properties ofproduct must be considered properly.In this study, by using the method hot extrusion, extrudabilities of AA 6063 andAA 7075 aluminum alloys are investigated. Furthermore, by using die-bearing angled dies with relief and choke systems, effect of die-bearing angle on the extrudability ofthese alloys is tried to be evaluated. Three different choke dies with die-bearing angleof 1.5o choke , 1o choke , 0.5o angle, one type of relief die with die-bearing angle of 0.3o relief adding to all these a standard extrusion die, with no angle system is used forexperiments. During experiments, AA 6063 and AA 7075 alloys are used as billetswith 30 mm diameter and 80 mm length. A special designed hydraulic hot extrusionpress with 350 bars of maximum extrusion pressure is used for extruding the billets. Inorder to discuss results of experiments properly, SEM images of samples are obtained, for detecting surface qualities of samples roughness test is conducted and for evaluatingmechanical properties of samples, tensile test and hardness test are made. Also forinvestigating flow behaviours of samples during extrusion a special microstructuralstudy is made.
dc.format.extent 30cm.
dc.publisher Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2005.
dc.subject.lcsh Aluminum alloys -- Mechanical properties.
dc.subject.lcsh Aluminum alloys -- Heat treatment.
dc.title Investigation of extrudability of different aluminum alloys by using the method of hot extrusion
dc.format.pages xvii, 108 leaves;


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