Laser/Powder bed interaction with multiple tracks [350]
Analysis of laser–melt pool–powder bed interaction during the selective laser melting of a stainless steel
... a powder denudation effect near the melt-pool after laser ...varying laser conditions and ambient gas ...the laser spot, provoking entrainment of powder ...the laser scanning ...
9
Benchmarking of Laser Powder Bed Fusion Machines
... of laser powder bed fusion (LPBF) machines conducted across five top machine producers and two end ...from multiple perspectives, in order to assess the current capabilities and limitations of ...
30
Denudation of metal powder layers in laser powder bed fusion processes
... Understanding laser interaction with metal powder beds is critical in predicting optimum processing regimes in laser powder bed fusion additive manufacturing of ...the ...
10
Additive manufacturing of glass with laser powder bed fusion
... the laser beam restricted the process to ele- mentary shapes with limited design ...freedom. Powder bed fu- sion methods have also been investigated for quartz, 10,11 soda lime silica, 12,13 and ...
5
Additive manufacturing of glass with laser powder bed fusion
... the laser beam restricted the process to elementary shapes with limited design ...freedom. Powder bed fusion methods have also been investigated for quartz, 10,11 soda lime silica, 12,13 and ...
5
Additive manufacturing of glass with laser powder bed fusion
... the laser beam restricted the process to elementary shapes with limited design ...freedom. Powder bed fusion methods have also been investigated for quartz, 10,11 soda lime silica, 12,13 and ...
5
Construction of Cellular Substructure in Laser Powder Bed Fusion
... 4. Conclusions The substructure in SS316L fabricated by LPBF can grow in the form of an oriented array in 3D. For such substructure, a model is built to calculate its growth direction from the 2D morphology. The three ...
9
Consolidation phenomena in laser and powder-bed based layered manufacturing
... (RM). Laser and powder bed based manufacturing ...selective laser sintering/melting or its variants) holds a special place within the variety of LM processes: no other LM techniques allow ...
30
The process atmosphere as a parameter in the Laser-Powder Bed Fusion process
... the Laser-Powder Bed Fusion Gas Density and Thermal Properties on the Produced Ti-6Al-4V Parts” is addressed in Section ...the powder feedstock is transferred to the built ...during ...
52
Laser Powder Bed Fusion of Ultrahigh Strength Steel AerMet 100
... of laser power and scanning speed on the melt pool, which are shown in Figure ...the multiple influence of high VED, laser parameters which yield keyhole geometry is not recommended for LPBF ...Thus, ...
65
Manufacturability of AlSi10Mg overhang structures fabricated by laser powder bed fusion
... Fig. 7 shows the simulated total displacement of full-circle and half- circle overhang structures under both the WPS and PSF conditions. For full-circle structures, the effect of part support was found to be more in- ...
16
Using laser ultrasound to detect sub surface defects in metal laser powder bed fusion components
... [email protected] Laser powder bed fusion offers many advantages over conventional manu- facturing methods, such as the integration of multiple parts that can result in ...
6
Feature based characterisation of signature topography in laser powder bed fusion of metals
... weld tracks and thus isolate the ripple texture, a three-step process is applied: ...weld tracks) is the small scale of the FOV, where the fitting is ...
17
Titanium Alloys Manufactured by In Situ Alloying During Laser Powder Bed Fusion
... The estimated time of direct interaction of the laser beam with the surface of the solid material under a laser spot size of 80 lm and scanning speed V = 1.0 m/s was 80 ls (Eq. 2). This was enough ...
8
Process Monitoring and Uncertainty Quantification for Laser Powder Bed Fusion Additive Manufacturing
... as powder bed integrity, melt pool characteristics, and chamber ...layer. Multiple algorithms are available in the EOS proprietary software that require threshold parameters from the user, ...
134
Interaction of pure tungsten powder with processing conditions in selective laser melting
... single tracks dimensions on the energy density and this was decisive in the selection of the range of the energy density to ...solid tracks and at the bottom of the melt pools ...
11
Process-property-microstructure relationships in laser-powder bed fusion of 420 stainless steel.
... fine powder contained ~ 20 ± 10 % retained austenite, in comparison to 16 ± 5 % for the L-PBF parts using the coarse ...coarse powder, the average distance between the laths were found to be 120 µm, equal ...
206
Study and characterisation of different metal alloys processed through Laser Powder Bed Fusion
... yield strength (210 ÷ 240 MPa) of the specimens while it influenced the elongation at break, resulting in an 25 % ductility increment when low laser power was employed. Moreover, it was evinced that three main ...
264
Qualification of Ti6Al4V ELI Alloy Produced by Laser Powder Bed Fusion for Biomedical Applications
... by interaction of the crack with microstructural features and interfaces in the LPBF ...orientation. Interaction of a crack with internal interfaces therefore can result in crack deviation, thus decreasing ...
21
Multi-Scale Multi-Physics Modeling of Laser Powder Bed Fusion Additive Manufacturing
... the laser powder bed fusion (LPBF) process, the material undergoes multiple rapid heating-cooling cycles, leading to complex microstructures with nonuniform ...the laser processing ...
180