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\[ \text{Tonnage} = \frac{{\text{Projected Area} \times \text{Injection Pressure}}}{2000} \]

3. Material Properties Zinc is known for its outstanding mechanical properties. It has a relatively low melting point, which means it requires less energy to cast compared to aluminum or magnesium. This property not only reduces energy consumption but also prolongs the lifespan of the molds, as zinc does not erode tools as quickly as some other metals.

Precision aluminum casting has emerged as a key technique in the manufacturing sector, offering unparalleled accuracy, surface finish, and mechanical properties. As industries demand components that not only meet stringent tolerances but also exhibit lightweight characteristics, aluminum casting processes have evolved to meet these challenges. This article delves into the intricacies of precision aluminum casting, its benefits, applications, and the future of this innovative manufacturing method.