Click on thumbnail to view enlargement and description of parts.

High definition televisions using DLP technology use mirrors to create the picture on screen. The precise positioning of these mirrors is absolutely critical to the television's function, so magnesium die casting is called upon to manufacture brackets, like the one pictured here, to hold the mirrors in place. This particular housing is 10" x 9" x 3" and die cast in magnesium AZ91D alloy. The dimensional repeatability of die casting is able to produce this close tolerance housing in large quantities with very little secondary machining. Before machining, the part is vibratory deburred and after machining it is powdercoat painted. Not only does magnesium die casting provide this manufacturability to the television manufacturer at a low cost, it also performs another essential function in acting very well as a heat sink for the excessive temperatures created in the functioning of the product.