What’s the Manufacturing Process of Lost Wax Casting?

Investment casting is also called lost wax casting. The pattern is made of wax or other substance that is melted, leaving behind a cavity which is filled with the material of the part being produced. Investment casting/lost wax casting process provides an excellent dimensional accuracy and surface finish. Below is the detail of manufacturing process.
In lost wax casting, a sacrificial detailed wax pattern of the desired finished part is created and mounted onto a wax “tree”, which includes the metal delivery system (gates and risers). The tree is alternately dipped into a ceramic slurry and sprinkled with stucco material, and is allowed to dry. This process is repeated until a thick shell is created over the wax pattern. The wax pattern is melted out leaving a cavity in the shape of the pattern. The cavity is filled with molten metal. After solidification, the shell is broken away, the gating material removed, and the finished part remains.
By lost wax casting technology, SEBON can produced non-symmetrical parts, smaller parts with fine details, parts that have internal structures with tight tolerance and thin walls like high performance thrust chamber, oil pipe clamp and ignition inlet guide vane.