RD Mathis Company - AVS 64th International Symposium ...
Apr 24, 2017 ... Cutting tools, such as drill bits, produce great heat from friction. Tungsten, added to steel in amounts varying from 2 to 18 percent (along with small amounts of molybdenum and vanadium), maintains the metal's strength at high temperatures . Called high-speed steel, it goes into making drill bits, milling bits, ...
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