Determining the Optimal Mode of the Inconel 718 Alloy Deposition at a Direct Laser Deposition Plant

2021 ◽  
Vol 1037 ◽  
pp. 3-12
Author(s):  
Maxim Oleynik ◽  
Alexander I. Khaimovich ◽  
Andrey V. Balaykin
Keyword(s):  
Tensile Strength ◽  
Energy Density ◽  
Target Function ◽  
Laser Deposition ◽  
Steep Ascent ◽  
Inconel 718 Alloy ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Optimal Mode ◽  
Deposition Mode

The paper describes determining the optimal direct laser deposition mode when processing the results of a two-factor experiment by the steep ascent method. The dependence of the ultimate tensile strength on the volumetric energy density and the lateral pitch was chosen as the target function.

A high strength low alloy steel fabricated by direct laser deposition

Vacuum ◽  
2019 ◽  
Vol 161 ◽  
pp. 225-231 ◽  
Author(s):  
Qiang Wang ◽  
Song Zhang ◽  
Chunhua Zhang ◽  
Jianqiang Wang ◽  
M. Babar Shahzad ◽  
...  
Keyword(s):  
Alloy Steel ◽  
High Strength ◽  
Laser Deposition ◽  
Low Alloy Steel ◽  
Direct Laser Deposition ◽  
Direct Laser

Self-Sufficient Modeling of Single Track Deposition of Ti–6Al–4V With the Prediction of Capture Efficiency

2018 ◽  
Vol 141 (1) ◽  
Author(s):  
Christopher Katinas ◽  
Shunyu Liu ◽  
Yung C. Shin
Keyword(s):  
Molten Pool ◽  
Deposition Process ◽  
Capture Efficiency ◽  
Laser Deposition ◽  
Single Track ◽  
Profile Error ◽  
Track Geometry ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Traditional Manufacturing

Understanding the capture efficiency of powder during direct laser deposition (DLD) is critical when determining the overall manufacturing costs of additive manufacturing (AM) for comparison to traditional manufacturing methods. By developing a tool to predict the capture efficiency of a particular deposition process, parameter optimization can be achieved without the need to perform a costly and extensive experimental study. The focus of this work is to model the deposition process and acquire the final track geometry and temperature field of a single track deposition of Ti–6Al–4V powder on a Ti–6Al–4V substrate for a four-nozzle powder delivery system during direct laser deposition with a LENS™ system without the need for capture efficiency assumptions by using physical powder flow and laser irradiation profiles to predict capture efficiency. The model was able to predict the track height and width within 2 μm and 31 μm, respectively, or 3.3% error from experimentation. A maximum of 36 μm profile error was observed in the molten pool, and corresponds to errors of 11% and 4% in molten pool depth and width, respectively. Based on experimentation, the capture efficiency of a single track deposition of Ti–6Al–4V was found to be 12.0%, while that from simulation was calculated to be 11.7%, a 2.5% deviation.

Dual-gradient bainite steel matrix composite fabricated by direct laser deposition

2019 ◽  
Vol 238 ◽  
pp. 210-213 ◽  
Author(s):  
Yanchuan Tang ◽  
Haichao Yang ◽  
Daosi Huang ◽  
Longzhi Zhao ◽  
Dejia Liu ◽  
...  
Keyword(s):  
Matrix Composite ◽  
Laser Deposition ◽  
Steel Matrix ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Bainite Steel ◽  
Dual Gradient ◽  
Steel Matrix Composite

Investigation of gum metal coating on Ti6Al4V plate by direct laser deposition

2019 ◽  
Vol 363 ◽  
pp. 161-169 ◽  
Author(s):  
Hao Xu ◽  
Hui Xing ◽  
Anping Dong ◽  
Dafan Du ◽  
Donghong Wang ◽  
...  
Keyword(s):  
Metal Coating ◽  
Laser Deposition ◽  
Direct Laser Deposition ◽  
Direct Laser ◽  
Gum Metal
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