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Laptop shell made by Magnesium Die Casting Company

Magnesium alloys are well-known for being the lightest structural alloys [1].

They are made of magnesium, the lightest structural metal, mixed with other metal elements to improve the physical properties. These elements include manganese, aluminium, zinc, silicon, copper, zirconium, and rare-earth metals [2].

Some of magnesium’s favourable properties include low specific gravity and a high strength-to-weight ratio. As a result, the material lends itself to a range of automotive, aerospace, industrial, electronic, biomedical, and commercial applications

Properties and advantages Applications

Magnesium alloys cover a wide array of applications, from automotive and aerospace applications to electronic and biomedical uses.

Structural applications Automotive, aerospace, industrial, and commercial applications are examples of structural applications. The advantage of magnesium alloys to be used in such applications is their light weight, high strength-to-weight ratio, high stiffness-to-weight ratio, castability, machinability, and great damping [4].

Automotive: support brackets for brakes and clutch, housing for transmission

Aerospace: landing wheels, helicopter rotor fittings, gearbox housings

Industrial: high-speed operating machinery, such as textile machines

Commercial: luggage, hand tools, computer housings, ladders

Electronic applications Electronic applications include electronic packaging, hard drive arms, cell phone and portable media device housings. Magnesium alloys are being used instead of plastics due to their light weight, strength and durability. They also are relatively better for heat dissipation and protection against electromagnetic and radio frequency interference [5].

Medical applications Portable medical equipment and wheelchairs that require light material make good use of magnesium alloys. Also, cardiovascular stents and orthopaedic devices are potential applications of some magnesium alloys due to magnesium’s biocompatibility and bioabsorbability [4].

Laptop shell made by Magnesium Die Casting Company

Magnesium alloys have excellent corrosion resistance. As mentioned earlier, magnesium is widely used in the manufacture of mobile phones, laptops, cameras and other electronic components due to its light weight and good mechanical and electrical properties. Magnesium alloys feel a bit like plastic. Rest assured, there will be plenty of other PC makers coming out with Blue Magnesium laptops. Moving to magnesium alloys makes you more concerned about weight and feel. Die-cast magnesium parts generally outperform plastic: stronger and more wear-resistant than plastic. Excellent stiffness like plastic usually requires significant reinforcement.

Process analysis: Laptop case made of magnesium alloy ME20. This part has a complex structure and high dimensional accuracy requirements, so it is integrally milled from a magnesium alloy plate. Magnesium machining is very different from traditional aluminum alloy machining in terms of tool selection, cutting parameter selection, cutting plan selection, cutting fluid selection, anti-corrosion measures, and chip treatment.

Laptop shell made by Magnesium Die Casting Company Products

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