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3D Printing Certification

Bilsing Automation adopts Fraunhofer ILT’s DED 3D printing technologies


The Turkish division of gripper manufacturer Bilsing Automation has declared the implementation of DED 3D printing certification engineering from the Fraunhofer Institute for Laser Technological know-how (ILT) into its workflow. The highly developed procedure, aptly named extraordinary large-velocity Laser Product Deposition (LMD), is presently staying made use of by industrial companions in international locations this kind of as Germany, China, and the Uk, with Turkey now making the most current addition.

Coating a brake disc using LMD. Photo via Fraunhofer ILT.
Coating a brake disc utilizing LMD. Photograph by means of Fraunhofer ILT.

Laser materials deposition

LMD is a variant of direct strength deposition, whereby a nozzle feeds powder to an intersection place with a significant electricity laser – in this scenario, up to 20kW. The laser melts the powder as it is remaining deposited, fusing it the area of the element straight underneath. Fraunhofer ILT has been functioning on its possess model of this due to the fact 2012 and has managed to attain layers as skinny as 25 microns with speeds of up to 8m/s.

The Institute’s machine also has an component of modularity to it, as the nozzle can be swapped out for a far more lateral one particular or a far more coaxial one particular, dependent on the kind of powder feed demanded for the application. What definitely pushed Bilsing to adopt the technological innovation, nonetheless, was the new HighNo (high-high quality powder nozzle).

The HighNo was made in collaboration with Harald Dicker, and directs a cone-formed powder jet onto the workpiece at a pretty exact definable length. It is made of a proven copper alloy and is able of powder efficiencies of up to 95%. The within of the nozzle characteristics two distinctive cones that guideline the powder all the way to the idea. Users can regulate these cones to modify the powder movement of the nozzle, enabling customizability for apps that call for it.

The HighNo. Photo via Fraunhofer ILT.
The HighNo. Image by way of Fraunhofer ILT.

Higher precision grippers

Because opting for the technologies, Bilsing has employed LMD and the HighNo to produce a amount of its proprietary products and solutions, like versatile grippers, handling units, and forming tools. The business has also worked collaboratively with Fraunhofer to make Ti64 plane parts for Turkish Airways, specially repairing the O-rings found in landing equipment.

Within its own services, Bilsing decided to mount the LMD processing head onto a cellular robotic with tracks, producing the total thing resemble a miniature tank (comprehensive with the fatal laser beam). It now roams the shop ground, aiding the manufacturing traces that require the additive raise.

Salih Ersungur, a Controlling Director at Bilsing Automation, states: “The exchangeable nozzle recommendations of the new nozzle technology are mounted with three screws that can be loosened in purchase to then insert a diverse nozzle idea. The HighNo nozzle will make the method more reliable and faster and reduces set-up periods. We strongly think in it.”

Bilsing's LMD rover. Photo via Bilsing Automation.
Bilsing’s LMD rover. Photograph via Bilsing Automation.

Quite a few corporations in the additive marketspace have formulated their have types of DED 3D printing certification. Optomec, acknowledged for its LENS method, recently declared an improvement in the capabilities of its LENS steel 3D printers. The processing heads are now in a position to deposit any aluminum alloy, extending the range of attainable applications in industries this sort of as transportation and aerospace.

Past 12 months, in Las Vegas, Additec also produced its debut with the start of the μPrinter – featuring the company’s personal spin on laser metallic deposition. The additive manufacturing certification method is a desktop equipment, which is pretty unconventional for this variety of engineering. It also retails at all-around $90,000, producing it one of the far more expense-productive metal 3D printers on the current market.

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Featured graphic shows brake disc being coated via LMD. Image through Fraunhofer ILT.