xingyu
A Tungsten Carbide Blank is a pre-formed, semi-finished piece of tungsten carbide that has been pressed and sintered but has not yet undergone its final machining or grinding into a specific, finished product. Think of it as a rough, ultra-strong "billet" or "slug" of material, ready to be custom-shaped.
The manufacturing process is fascinating:
Milling: Tungsten and carbon powders are mixed with a cobalt binder in a precise ratio.
Pressing: This powder mixture is compacted in a die under high pressure to form a "green" part, which is very fragile at this stage.
Sintering: The "green" blank is then heated in a vacuum furnace at temperatures near 1,400°C. This process causes the cobalt to melt and cement the tungsten carbide particles together, resulting in a dense, near-indestructible solid blank that is then ready for further processing.
