Welding metallurgy of magnesium alloys. L. Liu, in Welding and Joining of Magnesium Alloys, 2010 2.1 Introduction. Mg alloy, as a light metal, has specific physical and chemical characteristics that affect its welding property significantly, especially its boiling and melting temperatures, surface tension, corrosion potential and expansion coefficient, which will directly influence its welding
Die casting is a customized manufacturing method for producing OEM aluminum and zinc parts by forcing molten aluminum and zinc through high pressure into sol With a specific gravity of approximately 2.7g/cc, aluminum alloys are amongst the lightweight structural metals. It’s also often the most economical die casting metal. In fact, the majority of castings, worldwide, are aluminum alloys. Aluminum alloys typically involve six other elements: silicon, copper, magnesium, iron, manganese, and zinc. die cast (US DOE, 1999). Die cast aluminum parts are in demand by many industries, and its relatively low cost and light weight ensure that it will be the dominant metal in the field for years to come. Al 78% Mg 5% Zn 17% Figure 4. Metal distribution of US die casting in 2003. The total amount of die cast metal was 2.03 million tons. Source Disadvantages of aluminum die castings. – Low hardness and poor wear resistance; – The volume shrinkage during solidification is relatively large, about 6.6%; – The linear expansion coefficient is relatively high; – The iron content of the easy adhesive mold shall be strictly controlled within the range of 0.8% – 0.9%; ISO 3522 was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee SC 7, Aluminium and cast aluminium alloys. This fourth edition cancels and replaces the third edition ( ISO 3522:2006 ), of which Table 1 has been technically revised concerning the chemical composition of AlSi9Cu3(Fe). . 99 206 395 87 382 297 344 192