To produce high quality components throughout selective laser melting (SLM), a new stable, inert gas atmosphere within the building chamber of the machine in addition to a specified temperature range are necessary. It is also essential to remove metal splash and smoke developing through melting process.
At Formnext, Gebr. Becker will show two blower types produced for such applications. The key factor within these blowers is their gas-tight design that enables the precise control of gas flow and also removal of contamination through process. Used together together with gas-tight heat exchangers, which often Gebr. Becker also offers, these blowers provide that conditions for exact temperatures control in additive manufacturing processes.
For plants together with small building chambers, the perfect blower is the gas-tight, speed-controlled Vasf side-channel model within the size 1. 50. Based on the company, this model is known for a very compact construction and can be easily integrated such plants to allow regarding inert gas flow management while in the closed circuit. Moreover, this kind of blower has low-energy operations requirements. For larger plants in additive manufacturing along with the correspondingly higher volume comes of inert gas, the gas-tight side station blower Variair SV 300 must be used. The speed-controlled, energy-efficient drive on this model allows for the delivery rate that they are adapted to actual specifications.
Both blowers are created for 24/7 industrial operations and are reported to be well proven in a number demanding applications. Thanks to their gas-tight designs, they are well suited for the requirements of preservative manufacturing processes with high-grade atmospheres.

https://www.rexchipblower.com/Three-Phase-Ring-Blower-pl3463475.htm...