Carbide tipped cutting tools are manufactured by powder metallurgy
techniques and have a composition of
(A) 90% tungsten carbide and 10% cobalt
(B) 70% aluminium oxide & 30% silica
(C) 30% nickel, 15% chromium & 55% tungsten
(D) 65% tungsten & 35% zirconium

1 Answer

Answer :

Option A

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