Graphics Reference
In-Depth Information
Laser Engineered Net Shaping (LENS):
(Directed Energy Deposition)In the LENS pro-
cess metal powder is delivered in a gas stream into the focus of a high-power laser. The
metal powder is fully melted. LENS can be used both for repairing parts and production.
The process was invented at US Sandia National Laboratories and has been commercial-
ized by Optomec (LENS was based on Directed Light Fabrication (DLF) which was inven-
[ii]
ted by Los Alamos National Laboratory
).
Direct Metal Deposition (DMD):
(Directed Energy Deposition) In this process a laser
beam is focused onto a workpiece, producing a melt pool into which a small amount of
metal powder is injected. Metal wire can also be used, instead of metal powder. DMD is
often used for repair and coating, but can also be used for manufacturing. DMD machines
might be stationary or in the form of robot arms, the latter which might be used in the field.
Another name for DMD is Laser Cladding.
Other terms that you might run into when dealing with 3D printing are: Laminated Object
Manufacturing (LOM) (Sheet lamination), 3DP (Binder Jetting), Laser Additive Manufac-
turing (LAM), Laser Deposition Welding (LDW) etc.
