Pot metal the caster adds other metals to the mix to strengthen the cast part, improve flow of the molten metal, or to reduce cost. With a low melting point of 419 °C (786 °F), zinc is often alloyed with other metals including lead, tin, aluminium, and copper. Pot metal is generally used for parts that are not subject to high stresses or torque. Items created from pot metal include toys, furniture fittings, tool parts, electronics components, automotive parts, inexpensive jewelry and improvised weaponry. It is also used in inexpensive electric guitars and other budget priced musical instruments. Pot metal Pot metal
Bench jeweler same for jewelry casting. The cast pieces will likely need a variety of work done to them, including filing to remove the skin left from casting and prepare for polishing, straightening parts, rounding and sizing rings, and assembling many various parts together using solder. Although the method used is called soldering, it is actually a form of brazing, using "solders" of the metal being worked, i.e. gold solders for gold pieces, silver solder for silver pieces, etc. All of this is the work of bench jewelers, who at this level are sometimes known as production workers in some arenas. In