3. The Advanced Manufacturing Process of Powder Metallurgy The creation of a tungsten carbide ring is an engineering feat that diverges entirely from the traditional jewelry-making methods of casting or tungsten bands forging soft metals like gold and silver. Because tungsten carbide has an impractically high melting point, far exceeding that of a standard jeweler's torch, it cannot be melted and poured into a mold. Instead, the process relies on a highly specialized technique known as Powder Metallurgy or sintering. The journey begins with ultra-fine tungsten metal and carbon powders, which are meticulously measured and blended, tungsten bands often with a nickel binder, wedding rings to ensure a uniform composition.