Miniature DMLS Prints Tiny Metal Parts

A joint venture between 3D-Micromac AG and EOS Gmbh has created a new micro-laser sintering technology (MLS) that can be used to create miniature metal components.

While the two firms have been developing MLS technology since 2006 under the name of 3D MicroPrint, it was only last year that the technology was mature enough the begin operations in a research setting.

According to Han J. Langer, CEO of EOS, “Demand for very small parts which are difficult to manufacture using conventional processes is rising tremendously. Micro Laser Sintering provides solutions for three major trends: individualization, functional integration, and miniaturization.”

Mirroring the fundamental technology used in DMLS additive manufacturing systems, MicroPrint’s machine employs an extremely fine metal powder that is spread across consecutive layers and sintered with a laser.

While MicroPrint’s new technology can build parts with a reliable layer thickness of 5 micrometers, even smaller resolutions are possible. “Working with layer thicknesses of ≤ 5 µm, focus diameters of ≤ 30 µm and powder particle size of ≤ 5 µm, the MLS technology opens up new dimensions. With MLS it is even possible to produce moveable component assemblies,” said Joachim Göbner, a business manger with 3D MicroPrint.

As MLS continues to mature into a fully-functional 3D printing technology it might grow to encompass the production of MEMS systems, greatly expanding 3D printing’s reach. In the near-term, however, MicroPrint believes the technology could be used to build automotive nozzles, medical devices and custom tailored jewelry.

Images Courtesy of 3DMicroPrint