scholarly journals Laser beam melting 3D printing of Ti6Al4V based porous structured dental implants: fabrication, biocompatibility analysis and photoelastic study

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Fei Yang ◽  
Chen Chen ◽  
QianRong Zhou ◽  
YiMing Gong ◽  
RuiXue Li ◽  
...  
Keyword(s):  
3D Printing ◽  
Laser Beam ◽  
Dental Implants ◽  
Photoelastic Study ◽  
Laser Beam Melting

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 Integrating CAD and 3D-Printing Techniques to Construct an In Vitro Laser Standard Treatment Platform for Evaluating the Effectiveness of Sterilization by Er:YAG Laser in Peri-Implant Intra-Bony Defects

2020 ◽  
Vol 10 (10) ◽  
pp. 3431
Author(s):  
Shih-Hao Chang ◽  
Hsiang-I Mei ◽  
Chun-Li Lin
Keyword(s):  
Escherichia Coli ◽  
3D Printing ◽  
Laser Irradiation ◽  
Dental Implants ◽  
Bacterial Adhesion ◽  
Er:Yag Laser ◽  
Bony Defect ◽  
Mandibular Incisor ◽  
Printing Techniques

This study established an in vitro model mimicking clinical peri-implant intra-bony defects. We investigated the effect of access limitation and the bactericidal effectiveness of erbium-doped yttrium, aluminum and garnet (Er:YAG) laser irradiation in shallow and deep peri-implant defects at different tooth positions. Reverse engineering, computer-aided design (CAD), and 3D-printing techniques were integrated to establish physical peri-implant intra-bony defect models at mandibular central incisor, first premolar, and first molar positions with shallow (2 mm depth) or deep (6 mm depth) defects and with 1.5 mm and 1.8 mm widths at the bottom and crestal portions of the alveolar process, respectively. Three-dimensional printed suites at the corresponding implant sites replaced experimental implant specimens for the investigation of bacterial adhesion in individuals. Dental implants with diameters of 3, 4 and 5 mm were utilized at the mandibular incisor, premolar, and molar positions, respectively. Bacterial adhesion of Gram (–) Escherichia coli on the exposed implant surfaces prior to sterilization was assessed. Sterilization with shallow and deep intra-bony defects was investigated by measuring the reduction of residual viable bacteria on implants after 60 s of irradiation with an Er:YAG laser. The adhesion rate of Gram (–) Escherichia coli on the investigated implant surfaces ranged from 1% to 3% (1.76 ± 1.25%, 2.19   ±   0.75% and 2.66   ±   1.26% for 3, 4, and 5 mm implants, respectively). With shallow peri-implant bony defects, the Er:YAG laser sterilization rates were 99.6 ± 0.5%, 99.3   ±   0.41% and 93.8 ± 7.65% at mandibular incisor, premolar, and molar positions, respectively. Similarly, sterilization rates in deep peri-implant defects were 99 ± 1.35%, 99.1 ± 0.98% and 97.14 ± 2.57%, respectively. A 3D-printed model with replaceable implant specimens mimicking human peri-implant intra-bony defects was established and tested in vitro. This investigation demonstrated effective sterilization using Er:YAG laser irradiation in both shallow and deep peri-implant intra-bony defects at different positions and diameters of dental implants.

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

scholarly journals Numerical modelling and experimental validation of thermal history of titanium alloys in laser beam melting

Procedia CIRP ◽  
2018 ◽  
Vol 74 ◽  
pp. 92-96 ◽  
Author(s):  
O. Illies ◽  
G. Li ◽  
J.-P. Jürgens ◽  
V. Ploshikhin ◽  
D. Herzog ◽  
...  
Keyword(s):  
Numerical Modelling ◽  
Laser Beam ◽  
Titanium Alloys ◽  
Thermal History ◽  
Experimental Validation ◽  
Laser Beam Melting ◽  
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