Metal Additive Manufacturing Technology works：

1. Selective Laser Melting (SLM) is a manufacturing technology developed from Selective Laser Sintering (SLS), which uses metal powder as the raw material for processing and uses a high energy density laser beam to fuse and build up the powder on the metal substrate layer by layer to form metal parts;
2. The principle of Electron Beam Selective Melting (EBSM) is similar to that of SLM, except that EBSM uses an electron beam as the output heat source in a vacuum environment. Compared to lasers, electron beams are more readily available and can reduce some of the processing costs accordingly, while the vacuum environment also ensures that many active metals, including titanium and aluminium alloys, are not easily oxidised during the heating process;
3. Wire Arc Additive Manufacture (WAAM) uses the electric arc generated by welding machines such as MIG, TIG and PA as a heat source, and the addition of metal wire, controlled by a program, builds up layers on the substrate in a set forming path, layer by layer until the metal part is nearly net formed.