منابع مشابه
Extrusion of 7075 aluminium alloy through double-pocket dies to manufacture a complex profile
Low-temperature incipient melting and high deformation resistance of aluminium alloy AA7075 place extraordinary demands on extrusion die design and process optimization, especially when the shape of the extrudate is complex. The present case study was aimed at combining the considerations on die design and process optimization for the alloy to manufacture a complex solid profile with large diff...
متن کاملImproving Mechanical Properties of PVPPA Welded Joints of 7075 Aluminum Alloy by PWHT
In this study, 7075 aluminum alloy with a thickness of 10 mm was successfully welded with no obvious defects by pulsed variable polarity plasma arc (PVPPA) welding. The mechanical properties of PVPPA welded joints have been researched by post weld heat treatment (PWHT). The results indicate that the heat treatment strongly affects the mechanical properties of the welded joints. The tensile stre...
متن کاملTENSILE AND FRACTURE CHARACTERISTICS OF A SIC- PARTICLE-REINFORCED 7075 ALUMINIUM ALLOY
Fracture behavior of a 7075 aluminium alloy reinforced with 15 Vol%. SiC particles was studied after T6 and annealing heat treatments under uniaxial tensile loading at room temperature. The scanning electron microscopy of fractured surfaces and EDS analysis showed:, that fracture mechanism changed from due mainly to fractured particle in T6 condition to interface decohesion in samples in anneal...
متن کاملevaluation of fatigue life of friction stir welded 7075-t651 aluminum alloy joints
abstract – aluminium 7075- t651 alloys are widely used in the production of light weight structures requiring a high strength to weight ratio and high corrosion resistance. the effect of processing parameters on fatigue life of 7075- t651 aluminium joints produced by friction stir welding was investigated in the present study. welding samples were made by employing rotating tool speed of 770, 9...
متن کاملThe Effects of Surface Pretreatment on the Cyclic-Fatigue Characteristics of Bonded Aluminium-Alloy Joints
The present work has used an accelerated test method, based upon cyclic-fatigue testing using a fracture-mechanics approach, to study the durability of organosilanepretreated joints which were adhesively-bonded using a hot-cured epoxy-film adhesive. The silane primer investigated was γ-glycidoxypropyltrimethoxysilane (GPS). The cyclic-fatigue tests were mainly conducted in (a) a ‘dry’ environme...
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ژورنال
عنوان ژورنال: Scientific Bulletin of Valahia University - Materials and Mechanics
سال: 2017
ISSN: 2537-3161
DOI: 10.1515/bsmm-2017-0011