Study of process window development for high deposition-rate laser material deposition by using mixed processing parameters

2015 ◽  
Vol 27 (3) ◽  
pp. 032008 ◽  
Author(s):  
Chongliang Zhong ◽  
Andres Gasser ◽  
Jochen Kittel ◽  
Thomas Schopphoven ◽  
Norbert Pirch ◽  
...  
Keyword(s):  
Deposition Rate ◽  
Processing Parameters ◽  
Process Window ◽  
High Deposition Rate ◽  
Laser Material ◽  
Material Deposition

Experimental study of porosity reduction in high deposition-rate Laser Material Deposition

2015 ◽  
Vol 75 ◽  
pp. 87-92 ◽  
Author(s):  
Chongliang Zhong ◽  
Andres Gasser ◽  
Thomas Schopphoven ◽  
Reinhart Poprawe
Keyword(s):  
Experimental Study ◽  
Deposition Rate ◽  
High Deposition Rate ◽  
Laser Material ◽  
Porosity Reduction ◽  
Material Deposition

scholarly journals Investigation of High-Depostition-Rate Additive Manufacturing of Ti-6Al-4V via Laser Material Deposition

2021 ◽  
Author(s):  
Rebar Hama-Saleh ◽  
Kerim Yildirim ◽  
Susanne Hemes ◽  
Andreas Weisheit ◽  
Constantin Leon Häfner
Keyword(s):  
Additive Manufacturing ◽  
Hot Forging ◽  
Scanning Speed ◽  
Inert Atmosphere ◽  
High Deposition Rate ◽  
Beam Diameter ◽  
Deposition Rates ◽  
Laser Material ◽  
Aerospace Applications ◽  
Material Deposition

Ti-6Al-4V is the most prominent titanium alloy widely used e.g. for aerospace applications. Conventionally, many Ti-6Al-4V aerospace components are produced by a multi-stage hot forging process followed by subsequent machining which often generates a high amount of scrap. Additive manufacturing (AM), such as powder-based laser material deposition (p-LMD), enables parts to be made with geometric freedom and near-net-shape, but so far lacks high deposition rates. The present study proposes high-deposition-rate laser material deposition manufacturing using a large laser beam diameter and increased scanning speed to achieve deposition rates up to 5 kg/h. As Ti-6Al-4V is prone to oxygen pick-up, the process was performed in an inert atmosphere. We determined suitable process windows for tracks without fusion defects and low porosity and investigated microstructure and hardness.

Influence of Processing Parameters on Microstructure of Pulsed Laser Deposited Au Thin Films

2006 ◽  
Vol 979 ◽  
Author(s):  
Andreas Kulovits ◽  
John Leonard ◽  
Jorg Wiezorek
Keyword(s):  
Deposition Rate ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Grain Morphology ◽  
Processing Parameters ◽  
Deposition Flux ◽  
High Deposition Rate ◽  
Process Maps ◽  
Fundamental Parameters ◽  
Au Thin Films

AbstractIt has long been recognized that thin film polycrystalline microstructures are determined by the thermodynamics and kinetics associated with physical vapor deposition, but it is quite process dependent and not easily quantified. We have examined the microstructure in polycrystalline Au films obtained by pulse laser deposition (PLD) under various conditions and interpret the results in terms of three fundamental parameters common to all physical vapor deposition: Flux kinetic energy, substrate temperature, and deposition rate. With this model, it is predicted that nanocrystalline films are formed in the limits of low temperature, flux, and high deposition rate. The deposited films are analyzed with X-ray diffraction and SEM to determine texture and grain morphology, which are found to fit well within the process maps.

Particle velocity measurement in powder gas jets of coaxial powder nozzles for laser material deposition

2021 ◽  
Vol 33 (1) ◽  
pp. 012019
Author(s):  
Jonathan Schaible ◽  
Luis Andrea Hau ◽  
David Weber ◽  
Thomas Schopphoven ◽  
Constantin Häfner ◽  
...  
Keyword(s):  
Particle Velocity ◽  
Velocity Measurement ◽  
Laser Material ◽  
Gas Jets ◽  
Material Deposition ◽  
Particle Velocity Measurement

Parameter Optimization of High Deposition Rate Laser Cladding Based on the Response Surface Method and Genetic Neural Network Model

2021 ◽  
Vol 48 (6) ◽  
pp. 0602112
Author(s):  
庞祎帆 Pang Yifan ◽  
傅戈雁 Fu Geyan ◽  
王明雨 Wang Mingyu ◽  
龚燕琪 Gong Yanqi ◽  
余司琪 Yu Siqi ◽  
...  
Keyword(s):  
Neural Network ◽  
Response Surface ◽  
Response Surface Method ◽  
Deposition Rate ◽  
Network Model ◽  
Parameter Optimization ◽  
Neural Network Model ◽  
High Deposition Rate ◽  
Surface Method ◽  
Genetic Neural Network

Low-loss fibre prepared under high deposition rate by modified c.v.d. technique

1977 ◽  
Vol 13 (20) ◽  
pp. 608 ◽  
Author(s):  
K. Yoshida ◽  
Y. Furui ◽  
S. Sentsui ◽  
T. Kuroha
Keyword(s):  
Deposition Rate ◽  
High Deposition Rate ◽  
Low Loss
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