AlSi7Mg (F357) is one of the most widely used aluminum alloys in additive manufacturing (AM). While AlSi10Mg is the more common alloy known from casting, F357 offers some unique capabilities that can be fully utilized by AM. The increased Mg content enables well-balanced mechanical properties, even at elevated temperatures. Furthermore, AlSi10Mg´s higher Si content mainly improves castability, but is not required to achieve optimal part performance in DMLM. Due to the good ratio between strength and density, F357 is typically used in aerospace and automotive applications. Other key characteristics are the low density, good corrosion resistance and high thermal conductivity.

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