scholarly journals Powder Flux Regulation in the Laser Material Deposition Process

2016 ◽  
Vol 83 ◽  
pp. 743-751 ◽  
Author(s):  
Jon Iñaki Arrizubieta ◽  
Maximiliam Wegener ◽  
Kristian Arntz ◽  
Aitzol Lamikiz ◽  
Jose Exequiel Ruiz
Keyword(s):  
Deposition Process ◽  
Laser Material ◽  
Material Deposition

Modeling of the geometry built-up by coaxial laser material deposition process

2013 ◽  
Vol 70 (5-8) ◽  
pp. 843-851 ◽  
Author(s):  
I. Tabernero ◽  
A. Lamikiz ◽  
E. Ukar ◽  
S. Martínez ◽  
A. Celaya
Keyword(s):  
Deposition Process ◽  
Laser Material ◽  
Material Deposition

Development of a high-speed laser material deposition process for additive manufacturing

2021 ◽  
Vol 33 (1) ◽  
pp. 012021
Author(s):  
Jonathan Schaible ◽  
Lennart Sayk ◽  
Thomas Schopphoven ◽  
Johannes Henrich Schleifenbaum ◽  
Constantin Häfner
Keyword(s):  
Additive Manufacturing ◽  
High Speed ◽  
Deposition Process ◽  
Laser Material ◽  
Material Deposition

scholarly journals Evaluation of the relevance of melt pool dynamics in Laser Material Deposition process modeling

2017 ◽  
Vol 115 ◽  
pp. 80-91 ◽  
Author(s):  
Jon Iñaki Arrizubieta ◽  
Aitzol Lamikiz ◽  
Fritz Klocke ◽  
Silvia Martínez ◽  
Kristian Arntz ◽  
...  
Keyword(s):  
Process Modeling ◽  
Deposition Process ◽  
Laser Material ◽  
Melt Pool ◽  
Material Deposition

Evaluation of efficiency and mechanical properties of Inconel 718 components built by wire and powder laser material deposition

2017 ◽  
Vol 23 (6) ◽  
pp. 965-972 ◽  
Author(s):  
Jon Iñaki Arrizubieta ◽  
Fritz Klocke ◽  
Nils Klingbeil ◽  
Kristian Arntz ◽  
Aitzol Lamikiz ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Inconel 718 ◽  
Deposition Process ◽  
Tensile Tests ◽  
Ultimate Tensile Stress ◽  
Layer By Layer ◽  
Laser Material ◽  
Content Type ◽  
Material Deposition ◽  
Process Reliability

Purpose The purpose of this paper is to evaluate and compare powder and wire laser material deposition (LMD) processes. Design/methodology/approach In the present paper, Inconel 718 tensile test probes were built layer by layer using a longitudinal strategy, and the quality of the deposited material was characterized for both wire and powder LMD processes. The measured data during the deposition tests have been used for comparing the efficiency of both powder and wire LMD processes. Afterwards, to evaluate the mechanical properties of the parts generated by means of both processes, standard tensile tests were carried out. Furthermore, other factors have been evaluated, such as process reliability or presence of residual material, after the deposition process. Findings Results show a higher efficiency of the wire LMD process, and even similar ultimate tensile stress values were reached for both processes; powder LMD parts resulted in a more brittle nature. Originality/value In the present paper, a thorough analysis that compared both processes has been carried out. The results obtained will help in the future when choosing between wire and powder LMD. The main points of the wealth of knowledge generated with these research efforts are highlighted herein.

scholarly journals Numerical approach for the estimation of the deposited material on the laser material deposition process

Procedia CIRP ◽  
2018 ◽  
Vol 74 ◽  
pp. 785-789
Author(s):  
A. Lamikiz ◽  
J.I. Arrizubieta ◽  
E. Ukar ◽  
S. Martínez ◽  
J.E. Ruiz ◽  
...  
Keyword(s):  
Deposition Process ◽  
Numerical Approach ◽  
Laser Material ◽  
Material Deposition

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

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.

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