scholarly journals The effect of slow shot speed and casting pressure on the 3D microstructure of high pressure die casting AE44 magnesium alloy

2021 ◽  
Author(s):  
Chaosheng Ma ◽  
Wenbo YU ◽  
Tongtong Zhang ◽  
Zihua Zhang ◽  
Yihu Ma ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnesium Alloy ◽  
Die Casting ◽  
High Pressure Die Casting ◽  
3D Microstructure ◽  
Pressure Die Casting ◽  
Casting Pressure

Greenhouse Gas Emissions Attributable to High Pressure Die Casting

2009 ◽  
Vol 618-619 ◽  
pp. 21-26 ◽  
Author(s):  
Ambavalavanar Tharumarajah ◽  
Dayalan R. Gunasegaram ◽  
Paul Koltun
Keyword(s):  
High Pressure ◽  
Magnesium Alloy ◽  
Greenhouse Gas ◽  
Process Parameters ◽  
Die Casting ◽  
Ghg Emissions ◽  
High Pressure Die Casting ◽  
Cycle Times ◽  
Die Castings ◽  
Pressure Die Casting

In spite of die castings being amongst the highest volume items manufactured by the metalworking industry, the influence of high pressure die casting (HPDC) process parameters on greenhouse gas (GHG) emissions remains largely unreported. In this article, the authors discuss the effect of some HPDC process parameters on GHG emissions using cradle-to-gate life cycle assessment (LCA) for both aluminium and magnesium alloys. Although the impacts reduced with increasing yields in both cases, it was determined that the GHG impact of magnesium alloy HPDC was more sensitive to HPDC yield irrespective of the ratio of primary/secondary alloys in the melt charge. The reasons for this include a greater dependence of magnesium alloy HPDC on high-emitting primary processing and the use of the highly potent GHG SF6 for melting. For magnesium alloy HPDC, a decrease in quality assurance (QA) rejects and cycle times also reduced GHG emissions, although their influences were found to be an order lower than that of yield.

scholarly journals Mg-Al-RE Magnesium Alloys for High-Pressure Die-Casting

2014 ◽  
Vol 14 (2) ◽  
pp. 49-52 ◽  
Author(s):  
K.N. Braszczyńska-Malik
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
Magnesium Alloy ◽  
Intermetallic Compound ◽  
Rare Earth Elements ◽  
Magnesium Alloys ◽  
Die Casting ◽  
High Pressure Die Casting ◽  
Cold Chamber ◽  
Pressure Die Casting

Abstract Experimental Mg-Al-RE type magnesium alloys for high-pressure die-casting are presented. Alloys based on the commercial AM50 magnesium alloy with 1, 3 and 5 mass % of rare earth elements were fabricated in a foundry and cast in cold chamber die-casting machines. The obtained experimental casts have good quality surfaces and microstructure consisting of an α(Mg)-phase, Al11RE3, Al10RE2Mn7 intermetallic compound and small amount of α+γ eutectic and Al2RE phases.

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