The extrusion process is limited to manufacturing objects with only a fixed cross-sectional profile. It is typically used to make straight metallic parts or tubes of varying lengths. Some of the common profiles that are used in extrusion are a solid circle, rectangular, T-shape, L-shape, and tubular profile.
Invest casting is a famous manufacturing technique that uses a wax pattern which is coated with refractory ceramic materials. The technique is based on the ancient process of lost-wax-casting. The ceramic material that is poured which then hardens and takes the shape of the wax pattern.
Sand casting is one of the most successful manufacturing techniques in the world. Sand casting uses temporary sand molds which are used to manufacture complex metallic or alloy parts. The sand mold is destroyed in the process, and the metallic component is subsequently extracted.