Brief History of DMLS
DMLS was developed by the German company Elextrolux Rapid Development (ERD) and EOS companies. First commercialized in 1996 but invented and laboratory tests are based on earlier dates.
How DMLS Works
- By means of the software, the CAD data is decomposed into layers to determine the way the 3D printer head moves.
- Direct Metal Laser Sintering (DMLS) uses a precision, high-voltage laser for micro-welding powder metals and alloys to create fully functional metal parts from CAD data.
- A layer of powder on the production table is laid by the action of a mechanism.
- The high-voltage laser travels rapidly over the pre-determined paths on the layer, and the granules sinter the material dusts in the process and adhere to each other, and one of the layers forming the model geometry is completed in this way.
- This solidified layer forms the basis for the new layer to be covered, resulting in a unit (as much layer thickness) motion of the head or the production table.
- This process continues until all the layers that make up the model are formed.
Advantages of DMLS Technology
- DMLS removes time consuming molds from the middle,
- It can produce complex geometries that are not possible with other metal production processes,
- DMLS parts made of materials such as Inconel, Aluminum, Stainless Steel and Titanium are strong, resistant and heat resistant,
- As a result, you get a finished metal product without dealing with mold processes.
In DMLS technology, it is necessary to pay attention to the selection of suitable equipment and appropriate material. For this reason it is important to get the support of specialist teams in the business. Removal of support materials at some points can be difficult. For this reason, the proper use of 3D printers and proper positioning during prototyping are of great importance. Device investments and consumables will have much more to play in production as they arrive at the desired price range.