Nowadays, 3D Printing constitutes wide arrays of necessity, including the one with Metal 3D Printers. This article elaborates the two major perspectives, which are, the first: The principle of Direct Metal Printing (DMP); and subsequently, the second: the further discussion on Top 5 Best Metal Printers.

The first perspective is originated from source and adapted from https://www.3dsystems.com/how-does-metal-3d-printing-work, while the second perspective, is from https://youtu.be/HT2aodYuKus

First perspective: Principle of Direct Metal Printing (DMP)

Direct metal printing (DMP), also commonly known as direct metal laser sintering (DMLS), is an additive manufacturing technology that builds high quality complex metal parts from 3D CAD data. In the machine, a high precision laser is directed to metal powder particles to selectively build up thin horizontal metal layers one after the other. This cutting edge technology allows for the production of metal parts with challenging geometries, not possible using traditional subtractive or casting technologies. A variety of functional metals are available to print designs, from prototypes to production series of up to 20,000 units.

DMP is a powerful 3D printing technology that shapes any desired metal part geometry by melting metal powder layer by layer. This technology is applied to build up material in layers instead of removing it in different steps. The metal powder particles pinpointed by the laser quickly and fully melt so that the new material properly attaches to the previous layer, without glue or binder liquid. A powerful fiber laser with high energy intensity operates in the inert area inside the machine. This guarantees that the metal parts being built exhibit a dense and homogenous material structure. The CAD design of the parts directly drives the DMP production machines without the need for programming, clamping or tooling.

DMP is an ideal technology for aerospace and defense applications. It allows for the production of small and extremely complex shapes with no need for tooling, and it permits dramatically different part design than conventional processes like machining, stamping or die casting will allow.

 

Second perspective: Top 5 Best Metal 3D Printers

The aforementioned second perspective is illustrated in the following video along with its self explanatory elaboration:

https://www.youtube.com/watch?v=HT2aodYuKus