Category: Welding and Casting

Welding is a fabrication process whereby two or more parts are fused together by means of heat, pressure or both forming a join as the parts cool. Welding is usually used on metals and thermoplastics but can also be used on wood. The completed welded joint may be referred to as a weldment.

In addition to the cost component, investment casting can be advantageous for improved part strength and uniformity, particularly with hard-to-weld alloys. Part appearance is also improved, since there will no longer be visible weld lines as welded and fastened parts can be cast as one piece.

Welding is a fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperature to melt the parts together and allow them to cool, causing fusion.

Casting processes involve the use of molten material, usually metal. This molten material is then poured into a mould cavity that takes the form of the finished part. The molten material then cools, with heat generally being extracted via the mould, until it solidifies into the desired shape.

Casting is used to form complete parts and fusion welding creates bonded joints between parts. Nevertheless, these processes have a great deal in common. Their material properties and the physics of the processes are quite similar.

These are casting processes, material removal processes (machining), Fabrication processes (joining: welding, mechanical fasteners, epoxy, etc.), and forming processes. • Casting process exploit the fluidity of a metal in liquid state as it takes shape and. solidifies in a mould. It’s the primary manufacturing process