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Premium AEROTEC certifies multi-laser AM production of aviation titanium components

On a GE Additive Concept Laser M2 system

Premium AEROTEC and GE Additive certified lasers used to additively manufacture titanium components, another milestone in the serial production of metal AM components for the aerospace industry. Premium AEROTEC will use the newly validated system to produce components for the Airbus A320 family.

Since 2019, when the process qualification for titanium components on a GE Additive Concept Laser M2 multi-laser system was successfully validated, the focus of this collaboration has been on increasing the productivity of additive manufacturing. Multi-laser systems such as the Concept Laser M2 promise a significant increase in the build rate.

An AEROTECH Airbus part
A Preimum AEROTEC – Airbus part

However, until recently, qualification had been limited to the parallel assembly of several components in the build chamber of the system – with one laser being assigned to each part. For those components that occupy much of the available space in the machine, due to their dimension, productivity could not be increased by using several lasers in parallel.

This limitation has now been recently removed following the successful validation, by its customer Airbus, of the process using multiple lasers to build one component. The process-critical area is where the exposure zones of the lasers overlap, also known as the stitching zone. The highest precision in the calibration of the optical systems and sophisticated compensation of, for example, the influence of the process heat, is necessary to achieve the desired material properties.

Premium AEROTEC project manager Thomas Bielefeld said that: “With this advanced technology, we are now able to achieve a homogeneous, quasi-isotropic structure with excellent material properties in the overlap area, which does not show any discernible differences from the previous quality standard. At the same time, with our partner GE Additive, we have succeeded in increasing productivity in component production by more than 30 percent.”

The Concept Laser M2 is a dual laser system with a build volume of 250x250x350 cubic millimetres and a 3D optic with variable spot diameter. The current generation of the system was developed to meet the exacting demands of highly regulated industries such as aerospace and medicine in terms of accuracy, uniformity, repeatability and safety.

“We are thrilled and satisfied to have reached this milestone in cooperation with PAG. We owe this success primarily to the teams at PAG and GE Additive, who for many years have worked well and closely together on this project. This was not the first success and it will certainly not be the last”, said Udo Burggraf, senior key account director, GE Additive.

The partners are already planning the next steps to significantly increase achievable build rates and, in turn, make additive manufacturing economically attractive for an expanded range of parts.

Adam Strömbergsson

Adam is a legal researcher and writer with a background in law and literature. Born in Montreal, Canada, he has spent the last decade in Ottawa, Canada, where he has worked in legislative affairs, law, and academia. Adam specializes in his pursuits, most recently in additive manufacturing. He is particularly interested in the coming international and national regulation of additive manufacturing. His past projects include a history of his alma mater, the University of Ottawa. He has also specialized in equity law and its relationship to judicial review. Adam’s current interest in additive manufacturing pairs with his knowledge of historical developments in higher education, copyright and intellectual property protections.

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