Australia's magnesium alloy deep processing technology
With the suspension of the Australian magnesium smelting project, there is only a small amount of magnesium alloy component production, making the research institutions of magnesium alloys in Australia face severe challenges. However, Australia's magnesium deep processing technology research and development is very active.
Research institutes in Australia have always had strong government support for the study of magnesium deep processing technology and there are nine universities involved. The CSIRO's Light Metals Flagship project uses AUD 34 million annually for the production and processing of aluminum, magnesium and titanium to advance new industries in Australia.
Magnesium alloy casting process
The magnesium alloy casting process is a new type of casting process developed by the “Light Metal Flagship†project of the Commonwealth Scientific and Industrial Research Organization and is called T-MagTM technology. This is a kind of gravity permanent mold low pressure magnesium melting and die casting integrated process, featuring high quality, high output (95%) and low covering gas, which creates conditions for application in highly integrated automotive parts, such as In the car engine body, motorcycle cantilever and so on. The T-MagTM technology does not require pressure or vacuum to inject the magnesium alloy into the mold. The liquid magnesium alloy is smoothly injected into the bottom. During the casting process, turbulence, oxidation, and gas entrapment are minimized. The current 4 kg casting capacity of intermediate test equipment can reach a maximum capacity of 15 kg.
T-MagTM's organization has established a joint venture and partnership with the "Federal Scientific and Industrial Research Organization," and is operating commercially. Its joint venture has been supported by the Australian government's A$1.95 million funding.
Magnesium alloy plate double roll casting process
The Foundry Center of the "Federal Scientific and Industrial Research Organization" has successfully developed a new process for the double roll casting of magnesium alloy sheets. The use of conventional slab casting and rolling produces high magnesium alloy sheet costs, which limits the use of magnesium alloy sheets. Double roll casting process technology (TRC) enables magnesium alloy plates to be closer to the final size, reducing rolling costs, significantly lowering secondary heating energy and greenhouse gas emissions. This process has already been applied by some companies in the world. , notebook computers and cameras, etc., amount of several hundred tons per year, automotive magnesium alloy plate began to manufacture automotive interior door panels. With the US USAMP and USCAR in the United States and some European organizations, magnesium alloy plates have been used for project evaluation. The magnesium alloy plate casting process technology research began in 2001. The intermediate pilot plant can produce magnesium alloy plate rolls with a width of 600 mm, a thickness of 3 mm, and a coil weight of 100 kg, which have been provided to several markets for the evaluation of processed parts. And qualitative analysis.
Magnesium alloy extrusion billet
Direct cold hard top casting mold
T-MagTM, CSlR0 and CSAT and researchers from the University of Queensland developed Aircast, a direct chill hard hot top casting mold for magnesium alloy extrusion billets. Magnesium alloy extrusions can be produced without stripping and with superior quality. This technology has been exclusively licensed to ODt Engineering and installed at a research institute in Taiwan.
Magnesium alloy anti-corrosion and coating technology
The AURO research institutes CSIRO, CAST and CEDLM have already obtained A$2.1 million in funds under the “Light Metal Flagship†project to work on vehicle weight reduction and the use of deep processing of powder metal raw materials. The topics include the deep corrosion resistance of magnesium alloy wheels and magnesium, A new coating technology for Novel Coating has been developed for the no-juice of automotive lightweight suspensions that optimize the performance and cost of aluminum alloy processing components.
Connection technology
The Australian scientific research institute Auto CRC is improving the registered patented magnesium alloy component connection technology of American General Motors, and has successfully collaborated with its partner Henrob to develop a very specialized self-tapping rivet connection technology.
Self-tapping rivet connection technology is a promising connection technique compared to spot welding, and brittle intermetallic compounds tend to form at the spot weld.
Using laser connection technology, its crackless joints are completed in less than 5 seconds and development work is still underway, further reducing warm-up time and energy requirements. Anti-fatigue and anti-corrosion properties are being evaluated.
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