#metal engineering

Casting

Casting is the process of pouring hot metal into a mould or die, allowing it to cool, harden, and take the desired shape. The mass manufacture of parts using the same mould repeatedly to produce similar goods is suitable for the metal fabrication process. There are numerous casting variations. Die-casting is the process of forcing liquid metal into a die rather than a mould, where the pressure retains the metal in place as it cures. The fast applications that this approach provides are its main selling point. Pouring molten metal into a mould is a permanent mould casting technique.

Cutting

Cutting a workpiece to divide it into smaller portions is a relatively typical method of metal production. While sawing is still the most common way to cut, more recent techniques include laser, waterjet, power scissors, and plasma arc cutting. Cutting might be the first step of a more involved fabrication process, or it might be the sole one.

Another method of cutting metal that employs a die is die cutting. In rotary die cutting, the material is cut using a rotating cylindrical die that is fed via a press. On thicker metal materials, flatbed die cutting is employed. When the die stamps down on the metal, it cuts out shapes.

Drawing

Tensile power is used in drawing to draw metal bending into and through a tapered die. The metal is thinned by the die's stretching action. Drawing is typically done at normal temperature and is known as "cold drawing," however the metal workpiece can be heated to lessen the effort needed.

When the finished result has a depth that is equal to or more than its radius, the procedure is referred to as deep drawing. It is typically used in conjunction with sheet metal fabrication to create hollow cylinder- or box-shaped vessels from sheets of metal.

Folding