Friday, October 16, 2020

Fraunhofer fusion factory (3d fusion)

My slef Athul kumar A this article is about the comapny using 3d printing technology and also other technology together in the factory and its called Frayhofer fusion factory. This idea will help in more efficient use of materials like 100% metals in the filament ends up inside the part. So this is done using 3 steps but before discussing tge 3 steps first lets see whats this all about.

The Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM) in collaboration with XERION BERLIN LABORATORIES has shown off their new Fusion Factory system in Dresden, Germany. The serial production system will find its home in IFAM’s Innovation Center Additive Manufacturing (ICAM) department.

The Fusion Factory is based on filament deposition and has three main modules (3D printing, debinding, and densification) which are used for production of metallic and ceramic parts. The system can also be upgraded with extra modules to facilitate serial production.

The system was developed between IFAM and XERION, and has since been brought to market maturity, meaning this technology will presumably be ready for public consumption very soon.

This is done by 3 steps 

Step 1

In the first step (3D printing) the process is a familiar filament deposition process, using thermoplastic binder with ceramic or metallic powder additives passed through a heated nozzle.

Step 2

The second step, and the next station along the process is the debinding stage where the part is passed into a fluid filled reactor and heated until the binder is reduced. This is where XERION has added a lot of their own value, as much of their history as a company has been focused on the development and manufacture of high temperature vessels (such as furnaces) for manufacturing applications.

Step 3

The final stage is the densification step, also known as sintering. By this stage, most of the debinder has been removed, leaving a little to aid with maintaining structure during sintering.

As the furnace heats up, the parts begin to sinter and the remainder of the binder is burned away.

The furnace is a double walled steel construction, with water cooling to ensure safety and thermal management. The furnace can reach temperatures of up to 1500°C and is a multi-atmosphere furnace, enabling use of different gases for sintering a range of different metals.

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