6533b85dfe1ef96bd12be864

RESEARCH PRODUCT

Enhancing formability of aluminium alloys by superimposing hydrostatic pressure

Fabrizio MicariLivan FratiniLuigino Filice

subject

FEMMaterials scienceUpsettingMaterial formabilityMetallurgyHydrostatic pressureMicrovoidTitanium alloychemistry.chemical_elementForming processesMechanical engineeringForgingEngineering (all)chemistryAluminiumDamage mechanicsFormabilityDuctilityForgingDamage mechanic

description

Publisher Summary One of the strategic topics in manufacturing engineering is represented by the reduction of components weight. This aim is pursued by utilizing accurate and effective design tools and using lightweight metals such as aluminum, magnesium, and titanium alloys. Unfortunately, such materials often show a poor ductility, and thus enhancing formability is nowadays one of the most relevant research focus, as well as the development of effective and reliable predictive models of defects insurgence during forming processes. In this scenario, forming by means of superimposed hydrostatic pressure represents a promising alternative manufacturing technique. The chapter discusses the simple upsetting process of AA6082-T6 cylindrical specimens under sticking conditions at the punch-specimen interface. The process is simulated and experimentally carried out both with and without a superimposed hydrostatic pressure. The experimental equipment is designed with the aim to achieve an assigned fluid pressure value inside the chamber during the upsetting process.

10.1016/b978-008044046-0.50065-8http://hdl.handle.net/10447/295425