3D printing metal is also referred to as metal additive manufacturing. This is a manufacturing technology used for the production of complex structures and smaller designs. The introduction of 3D printing metal has helped manufacturers to design and develop complex structures with ease which would have not been possible without the use of conventional manufacturing techniques. 3D printing metal is a manufacturing technology in which manufacturing is done layer by layer and hence, the accuracy of the production is also increased to a higher level. This technique, most commonly, requires only metal powder which can be used to manufacture various parts and components as per the requirement of the producers. There are special machines which are capable of manufacturing such complex structures. However, they must be operated under human supervision. The use of powder metals for the manufacturing of products has enabled manufacturers to use several types of metals and their alloys. Thus, the permutation and combination of several metals has enabled industries to produce products which are more durable, economical and suitable to be used for various industrial and commercial applications.