|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||TMS-DGM Symposium on Lightweight Metals: A Joint US-European Symposium on Challenges in Light Weighting the Transportation Industry
||A Novel Flexible SSM and HPDC Equipment to Process Secondary Aluminium Alloys for Decarbonising Lightweight Parts in Automotive Sector
||Fabrizio D'Errico, Guido Perricone, Mattia Alemani
|On-Site Speaker (Planned)
LCA approach guidelines for automotive sector recently introduced [TMS Conference 2015, IMA Conference 2015] highlighted how much important is working on decarbonisation of Al casting processes to produce vehicle components. Broadening use of secondary aluminium alloys, instead of high energy intensive primary aluminium alloys, is key for environment preservation. Unfortunately, primary aluminium alloys are preferred by automotive OEMs because impurities (mainly Fe) present in secondary aluminium alloys can cause mechanical performance decrease. Semisolid-state process route is still thought to drastically reduce some physiologic casting defects, thus positively balancing decrease by impurities. Basing on these premises, a pre-industrial prototype 4-columns 700kN clamping force vertical casting machine has been designed and constructed to cast secondary aluminium in two modes: medium-pressure die casting and semisolid state. Investigation on A356 secondary alloys samples obtained by both process routes have been investigated in order to compare microstructure integrity and key-features impacting on final mechanical properties.
||Planned: Light Metals