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

scholarly journals FUNCTIONAL MODELING IN THE DESIGN OF ADDITIVELY MANUFACTURED COMPONENTS

2020 ◽  
Vol 1 ◽  
pp. 877-886
Author(s):  
E. Garrelts ◽  
D. Roth ◽  
H. Binz
Keyword(s):  
Additive Manufacturing ◽  
Laser Beam ◽  
Functional Modeling ◽  
Modeling Methods ◽  
Laser Beam Melting

AbstractThis contribution investigates how methods for functional modeling support designers with additive manufacturing. Therefore, two methods for functional modeling are examined. In this contribution a study with 32 participants is presented. The participants solved two consecutive design tasks, in which some participants were supported by functional modeling methods in the second task. The study shows that students have the most difficulties in dealing with the geometric restrictions of Laser Beam Melting (LBM). Furthermore, the support value of functional modeling was not able to be assessed.

Laser beam melting process based on complete-melting energy density for commercially pure titanium

2019 ◽  
Vol 45 ◽  
pp. 455-459 ◽  
Author(s):  
Hyung Giun Kim ◽  
Won Rae Kim ◽  
Ohyung Kwon ◽  
Gyung Bae Bang ◽  
Min Ji Ham ◽  
...  
Keyword(s):  
Energy Density ◽  
Laser Beam ◽  
Pure Titanium ◽  
Melting Process ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Complete Melting ◽  
Laser Beam Melting

scholarly journals Spatter formation during laser beam melting of AlSi10Mg and effects on powder quality

Procedia CIRP ◽  
2018 ◽  
Vol 74 ◽  
pp. 33-38 ◽  
Author(s):  
M. Lutter-Günther ◽  
M. Bröker ◽  
T. Mayer ◽  
S. Lizak ◽  
C. Seidel ◽  
...  
Keyword(s):  
Laser Beam ◽  
Laser Beam Melting
Sign in / Sign up

Export Citation Format

Share Document