A Tungsten Carbide blank is a pre-formed, semi-finished piece of sintered carbide that has not yet undergone its final machining or grinding to become a finished product. Think of it as a rough diamond or a block of marble for a sculptor—it possesses the core material properties but hasn't been shaped to its precise final dimensions or tolerances.
These blanks are typically produced through a process of powder metallurgy: tungsten carbide powder is mixed with a cobalt binder (usually 6-12%), pressed into a desired green form under high pressure, and then sintered in a furnace at extremely high temperatures. This process creates a incredibly dense and hard structure, but the sintering process causes the part to shrink and requires a final machining step to achieve pinpoint accuracy.
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