Investment casting—also called lost-wax casting—is a precision casting method used to produce components with intricate geometries and high-quality finishes. It’s especially useful when machining would be too costly or time-consuming.
Process Steps:
Wax Pattern Creation – A wax model is formed to replicate the final part.
Tree Assembly – Multiple wax models are grouped on a sprue to form a wax “tree.”
Shell Building – The tree is dipped in ceramic slurry and layered with fine sand to create a hard shell.
Wax Removal – The assembly is heated, melting the wax and leaving a hollow ceramic mold.
Metal Pouring – Molten metal is poured into the mold cavity.
Shell Removal – After cooling, the ceramic shell is removed to reveal the finished part.
