Microstructure and Properties of Cobalt-and Zinc-Containing Magnetic Magnesium Alloys Processed by High-Pressure Die Casting

2015 ◽  
pp. 451-454
Author(s):  
Christian Klose ◽  
Christian Demminger ◽  
Hans Jürgen Maier
Keyword(s):  
High Pressure ◽  
Magnesium Alloys ◽  
Die Casting ◽  
High Pressure Die Casting ◽  
Microstructure And Properties ◽  
Pressure Die Casting

A Development of Virtual Manufacturing System for Magnesium High Pressure Die Casting Processes

Materials ◽  
2003 ◽  
Author(s):  
Weilong Chen
Keyword(s):  
High Pressure ◽  
Magnesium Alloys ◽  
Die Casting ◽  
Virtual Manufacturing ◽  
Mold Design ◽  
High Pressure Die Casting ◽  
Molten Magnesium ◽  
Pressure Die Casting ◽  
Soft And Hardware ◽  
Free Magnesium

In recent years, high-pressure die-casting magnesium components have been gaining currency worldwide because of the excellent properties that magnesium alloys can offer to meet new product requirements. With the increasing application of magnesium parts worldwide, many research and development projects have been carried out to advance HPDC technology. However, truly optimized mold design and production of defect free castings remains a challenge for die casters. For many HPDC magnesium products, especially those specified for porosity-free and high cosmetic requirement, the challenge not only comes form a lack of a deeper understanding of how molten magnesium alloys fill the mold cavity and form defects, but also from improper preliminary part design. This study proposes a virtual prototyping system that integrates several effective soft and hardware tools for both the part and mold-design engineer to evaluate part manufacturability. Also, investigated in this study are the major causes of those defects that are the predominant cause of rejection of thin walled, leak-free magnesium parts requiring highly cosmetic finishes.

Development of a Magnesium Alloy Rotor with a Pin-Point Gate Mold

2010 ◽  
Vol 654-656 ◽  
pp. 1460-1463
Author(s):  
Young Cheol Lee ◽  
Hyung Ho Jo ◽  
In Deok Park
Keyword(s):  
High Pressure ◽  
Magnesium Alloys ◽  
High Efficiency ◽  
Die Casting ◽  
Casting Process ◽  
Good Alternative ◽  
High Pressure Die Casting ◽  
Steel Sheets ◽  
Die Casting Process ◽  
Pressure Die Casting

The rotor is a key determinant of the performance of a compressor and many attempts have been made to improve the efficiency of compressors by optimising rotor design. Rotors are usually made of several layers of steel sheets with thin cavities through the steel sheets, and aluminium alloys are used to fill the cavities by high pressure die casting process, and so bind the steel sheets together. Because of their high fluidity and good damping ability, magnesium alloys can be a good alternative for a high efficiency rotor. In this study, magnesium alloys were used for manufacturing rotors by high pressure die casting process using pin-point gate mold. By adopting a pin-point gate system, additional machining was eliminated and casting defects were reduced due to good castability of magnesium alloys.

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.

scholarly journals Novel Magnesium Based Materials: Are They Reliable Drone Construction Materials? A Mini Review

2021 ◽  
Vol 8 ◽  
Author(s):  
Daniel Höche ◽  
Wolfgang E. Weber ◽  
Eugen Gazenbiller ◽  
Sarkis Gavras ◽  
Norbert Hort ◽  
...  
Keyword(s):  
High Pressure ◽  
Aluminum Alloys ◽  
Magnesium Alloys ◽  
Elevated Temperatures ◽  
Construction Material ◽  
Die Casting ◽  
Next Generation ◽  
High Pressure Die Casting ◽  
Aerial Vehicles ◽  
Pressure Die Casting

Novel magnesium-based materials are ideal candidates for use in future aviation vehicles because they are extremely light and can therefore significantly increase the range of these vehicles. They show very good castability, are easy to machine and can be shaped into profiles or forgings to be used as components for next generation aerial vehicle construction. In the case of a large number of identical components, high-pressure die casting of magnesium alloys is clearly superior to high-pressure die casting of aluminum alloys. This is due to the lower solubility of iron in magnesium and thus tool/casting life is significantly longer. In addition, the die filling times for magnesium high-pressure die casting are approximately 30% shorter. This is due to the lower density: aluminum alloys are approximately 50% heavier than magnesium alloys, which is a significant disadvantage for aluminum alloys especially in the aerospace industry. There are cost-effective novel die casting alloys, besides AZ91 or AM50/60 such as DieMag633 or MRI230D, which show very good specific strength at room and elevated temperatures. In the case of magnesium-based wrought alloys, the choice is smaller, a typical representative of these materials is AZ31, but some new alloys based on Mg-Zn-Ca are currently being developed which show improved formability. However, magnesium alloys are susceptible to environmental influences, which can be eliminated by suitable coatings. Novel corrosion protection concepts for classical aerial vehicles currently under development might suitable but may need adaption to the construction constraints or to vehicle dependent exposure scenarios. Within this mini-review a paradigm change due to utilization of new magnesium materials as drone construction material is briefly introduced and future fields of applications within next-generation aerial vehicles, manned or unmanned, are discussed. Possible research topics will be addressed.

Sign in / Sign up

Export Citation Format

Share Document