Magnesium alloys combine low component weight with cost competitive manufacturing. Thin walls, net shapes, high casting rates and long die lives are typical advantages to be gained from using magnesium die castings.
Other advantages include excellent machinability, good damping capacity and electromagnetic interference (EMI) shielding properties. High purity alloys and modern design techniques to avoid galvanic corrosion qualify magnesium in corrosive environments.
Differents alloys
AZ91 :
The most commonly used magnesium based alloy for pressure die casting, having excellent castability and good strength.
Typically used for automobile and cumputer parts, mobile telephones, sporting goods, housings and covers, brackets, chain saw parts, handheld tools, household equipment,ect.
AM50 and AM60 : Alloys with outstanding ductility and energy absorbing properties, combined with good strength and castability.
Typical uses are automotive seat frames, steering wheels, instrument panels, brackets, fans,…
AM20 :
An alloy recognized by high ductility and impact strength.
Typical uses are automotive safety parts where the highest possible ductility is required
AS41, AS21 and AE42 :
Alloys with good creep properties up to about 150°C. Decreased aluminium content in AS21 compared to AS41 results in increased creep resistance and ductility, and in some decrease in tensile strength and castability. The properties of alloy AE42 are comparable to those of AS21. All three alloys offer good mechanical properties at room temperature
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