WebInvestment casting(also known as the lost wax process) is commonly used to manufacture hip and knee implants. This process begins by creating a dimensionally accurate mold into which melted wax is poured to create a wax positive. WebIt is a byproduct of the ferrous and nonferrous metal casting industry, where sand has been used for centuries as a molding material because of its unique engineering properties. In modern foundry practice, sand is typically recycled and reused through many production cycles. Industry estimates are that approximately 100 million tons of sand ...
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