Influences of process parameters on rare earth magnets produced by laser beam melting

2017 ◽  
Author(s):  
Nikolaus Urban ◽  
Florian Huber ◽  
Jorg Franke
Keyword(s):  
Rare Earth ◽  
Laser Beam ◽  
Process Parameters ◽  
Laser Beam Melting

Laser Beam Melting of NdFeB for the production of rare-earth magnets

2016 ◽  
Author(s):  
Tobias Kolb ◽  
Florian Huber ◽  
Basri Akbulut ◽  
Christoph Donocik ◽  
Nikolaus Urban ◽  
...  
Keyword(s):  
Rare Earth ◽  
Laser Beam ◽  
Laser Beam Melting

Efficient near Net-Shape Production of High Energy Rare Earth Magnets by Laser Beam Melting

2017 ◽  
Vol 871 ◽  
pp. 137-144 ◽  
Author(s):  
Nikolaus Urban ◽  
Alexander Meyer ◽  
Sven Kreitlein ◽  
Felix Leicht ◽  
Jörg Franke
Keyword(s):  
Rare Earth ◽  
Laser Beam ◽  
Permanent Magnets ◽  
High Energy ◽  
Parameter Study ◽  
Efficient Production ◽  
Rare Earth Magnet ◽  
Laser Beam Melting ◽  
Near Net Shape ◽  
The Impact

In this publication we report on our progress in investigating the energy efficient production of rare earth permanent magnets by Laser Beam Melting in the powder bed (LBM). This innovative additive manufacturing process offers the potential to produce magnets of complex geometries without an energy intensive oven sintering step. Another advantage that increases the efficiency of this possible new process route is the high degree of material utilization due to a near net shape production of the magnets. Hence only little material is wasted during a post processing machining step. The main challenge in processing rare earth magnet alloys by means of LBM is the brittle mechanical behavior of the material and the change in microstructure due to the complete remelting of the magnet powder. We therefor expanded the parameter study presented in previous work in order to further increase relative density and magnetic properties of the specimens. In this context process stability and reproducibility could also be increased. This was achieved by investigating the impact of different exposure patterns and varying laser spot sizes. Simultaneously to the experiments the energy consumption of the LBM process was measured and compared with conventional rare earth magnet production routes.

A Smoothed Particle Hydrodynamics Model for Laser Beam Melting of Ni-based Alloy 718

2019 ◽  
Vol 78 (7) ◽  
pp. 2377-2394 ◽  
Author(s):  
Johannes Weirather ◽  
Vladyslav Rozov ◽  
Mario Wille ◽  
Paul Schuler ◽  
Christian Seidel ◽  
...  
Keyword(s):  
Laser Beam ◽  
Smoothed Particle Hydrodynamics ◽  
Alloy 718 ◽  
Laser Beam Melting ◽  
Particle Hydrodynamics ◽  
Smoothed Particle
Sign in / Sign up

Export Citation Format

Share Document