Additec launches the first commercially available laser wire deposition 3D Printer

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Summary

Additec launches a new Desktop size metal 3D printer called the μPrinter. The μPrinter processes both wire and-or powder feedstock with our LMD-WP Process. Processing wire is advantageous because material cost is low, availability is high, and it is safe and clean to handle. Closed loop process control is a standard feature on the μPrinter, ensuring high reliability. The μPrinter is very efficient using modern direct diode lasers as the energy source. It features a controlled atmosphere enclosure, allowing for large material variety. The complete system has a very low price point, starting at 90 000 dollars.

Desktop 3D Printer with closed-loop process control

Additec Advances Directed Energy Deposition AM with the μPrinter, a desktop machine capable of producing complex metallic components from both, wire and powder feedstock using Additec´s unique LMD-WP (Laser Metal Deposition-Wire Powder) Process. The ability to produce parts from wire feedstock makes operation and material handling very clean, as well as ensuring 100% material efficiency. Being also able to process powder closes the gap to conventional LMD and brings the ability to mix alloys on the fly. Switching between wire and powder is fast, does not require a nozzle change and can be done automatically on the same part. The Process works by having multiple high-power diode laser sources arranged around the central axis of the deposition head. The wire is fed through a central wire guide, while powder is fed through an annular gap nozzle around the wire guide.

Process stability was the most important aspect for the development of the μPrinter. Because wire based coaxial deposition is not as common as powder LMD, we developed our own process control structure, that not only adjusts the processing parameters on the fly, but also measures the height of the individual layers, and adjusts the nozzle to part distance automatically. Further, to grant users maximum flexibility, as all process parameters can be set in g-code. To easily change parameters for certain sections of a build, a macro utility is provided. As a welcomed side-effect of the closed-loop control, the print quality is very high, both in wire and powder mode. The printer can be controlled either via a locally hosted web interface or through USB. Find more 3D Printing Manufacturers here.

Despite the compact outer dimensions, the print envelope is 120x160x450mm (XYZ) making the μPrinter useful beyond research applications. The build chamber is fully inert, and the small volume makes filling quick, affordable and safe. In addition to Additive manufacturing, it is also suitable for Cladding and Repair work on small components.

The μPrinter is based on Additec’s patented LMD-WP process, launched two years ago. Previously offered as a retrofit package that could be used to turn existing CNC platforms into metal 3D printers or hybrid manufacturing systems. In order to lower the barrier of entry, Additec now offers complete systems, starting with the μPrinter.

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Source: The article was gently conceded by Additec and was re-edited by Phil Brito/Additive News on Jan11, 2019;

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