scholarly journals Experimental investigations on the influence of temperature for Laser Metal Deposition with lateral Inconel 718 wire feeding

Procedia CIRP ◽  
2020 ◽  
Vol 94 ◽  
pp. 29-34 ◽  
Author(s):  
Thomas Bergs ◽  
Sebastian Kammann ◽  
Gabriel Fraga ◽  
Jan Riepe ◽  
Kristian Arntz
Keyword(s):  
Inconel 718 ◽  
Metal Deposition ◽  
Experimental Investigations ◽  
Laser Metal Deposition ◽  
Influence Of Temperature ◽  
Wire Feeding

scholarly journals Laser Metal Deposition as Repair Technology for a Gas Turbine Burner Made of Inconel 718

2016 ◽  
Vol 83 ◽  
pp. 761-768 ◽  
Author(s):  
Torsten Petrat ◽  
Benjamin Graf ◽  
Andrey Gumenyuk ◽  
Michael Rethmeier
Keyword(s):  
Gas Turbine ◽  
Inconel 718 ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Repair Technology ◽  
Gas Turbine Burner

scholarly journals Influence of Process Conditions on the Local Solidification and Microstructure During Laser Metal Deposition of an Intermetallic TiAl Alloy (GE4822)

2021 ◽  
Vol 52 (3) ◽  
pp. 1106-1116
Author(s):  
Silja-Katharina Rittinghaus ◽  
Jonas Zielinski
Keyword(s):  
Heat Treatment ◽  
Additive Manufacturing ◽  
Process Parameters ◽  
Titanium Aluminides ◽  
Metal Deposition ◽  
Experimental Investigations ◽  
Process Conditions ◽  
Laser Metal Deposition ◽  
Melt Pool ◽  
Temperature Regimes

AbstractTemperature-time cycles are essential for the formation of microstructures and thus the mechanical properties of materials. In additive manufacturing, components undergo changing temperature regimes because of the track- and layer-wise build-up. Because of the high brittleness of titanium aluminides, preheating is used to prevent cracking. This also effects the thermal history. In the present study, local solidification conditions during the additive manufacturing process of Ti-48Al-2Cr-2Nb with laser metal deposition (LMD) are investigated by both simulation and experimental investigations. Dependencies of the build-up height, preheating temperatures, process parameters and effects on the resulting microstructure are considered, including the heat treatment. Solidification conditions are found to be dependent on the build height and thus actual preheating temperature, process parameters and location in the melt pool. Influences on both chemical composition and microstructure are observed. Resulting differences can almost be balanced through post heat treatment.

scholarly journals Comparison of laser metal deposition of Inconel 718 from powder, hot and cold wire

Procedia CIRP ◽  
2018 ◽  
Vol 74 ◽  
pp. 206-209 ◽  
Author(s):  
Markus Bambach ◽  
Irina Sizova ◽  
Frank Silze ◽  
Michael Schnick
Keyword(s):  
Inconel 718 ◽  
Metal Deposition ◽  
Laser Metal Deposition ◽  
Cold Wire
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