Effects of weld pool variables and process parameters on direct laser metal deposition of aerospace alloys (2023)

Salman, A., Pinkerton, A., Shah, K.(2010).Effects of weld pool variables and process parameters on direct laser metal deposition of aerospace alloys.Materials and manufacturing processes,25(12), 1372-1380.

Salman, A; Pinkerton, André; Shah, K. et al. /Effects of weld pool variables and process parameters on direct laser metal deposition of aerospace alloys. Em:Materials and manufacturing processes. 2010; Bd. 25, Nr. 12. S. 1372-1380.

@artigo{9b3ec89324234cac99868ae0cd4bc3ba,

title="Effects of Weld Pool Variables and Process Parameters on Direct Laser Cladding of Aerospace Alloys",

abstract = “Despite significant advances in the optimization of the Laser Direct Metal Deposition (LDMD) process, there are relatively limited reports on the impact of weld pool variables on the properties of the final powder deposit deposit of Inconel 718 on a thin wall Ti-6Al-4V Ein 1.5 -kW diode lasers and an LDMD system are used to fabricate a series of deposits and quantitative results are extracted by image analysis on process parameters, such as carrier gas flow rate, powder mass flow rate, and the mode of operation of the laser (CW and pulsed) and on process variables, such as quantifiable disturbances . Each of the weld pool and end part features are listed and discussed in a correlated manner. Scanning Electron Microscopy (SEM), Electron Backscatter Diffraction (EBSD) and Energy Dispersive X-ray Spectroscopy (EDS) are used to analyze deposited coatings in terms of elemental composition and flow properties in the deposition melt pool. The disturbance of the weld pool is considered to be a crucial parameter to determine the surface roughness of the finished part. An inverse relationship is observed between the average surface disturbance of the weld puddle and the surface roughness of the part, and the carrier gas flow and dust mass flow affect the overall size of the weld puddle. The work has implications for the selection of process parameters for commercial laser deposition processes: the rate at which the powder is delivered to the weld pool may need to be considered, as well as the mass flow rate when calculating the build rate and for a good surface finish, the minimum Rework required, a stable weld pool finish can be the worst case.”

author = "To Salman and Andrew Pinkerton and K Shah and Lin Li",

again="2010",

language = "English",

volume = "25",

pages="1372--1380",

Magazine = "Materials and Manufacturing Processes",

issn = "1042-6914",

Editor = "Taylor & Francis",

number="12",

}

Salman, A., Pinkerton, A., Shah, K2010, 'Effects of weld pool variables and process parameters on direct laser metal deposition of aerospace alloys',Materials and manufacturing processes, Bd. 25, Nr. 12, p. 1372-1380.

Effects of weld pool variables and process parameters on direct laser deposition of aerospace alloy metal./ Salman, A; Pinkerton, André; Shah, K. et al.

Em:Materials and manufacturing processes, Vol. 25, Nr. 12, 2010, p. 1372-1380.

search result:contribution to the magazine›Article›Peer-Review

YOU GOOD

T1 - Effects of weld pool variables and process parameters on direct metal laser deposition of aerospace alloys

DE - Salman, A

Australia—Pinkerton, Andrew

Australia - Shah, K

UE-Li, Lin

AP-2010

Also 1 - 2010

N2 - Despite significant advances in optimizing the Laser Direct Metal Deposition (LDMD) process, relatively limited work has been reported on the impact of melt pool variables on the final deposit properties. This article considers the effects of process parameters and weld pool properties on powder deposition of Inconel 718 on a thin Ti-6Al-4V wall. A 1.5 kW diode laser and LDMD system are used to create a series of depositions. Images of the process are captured using copper vapor laser illumination and a high-speed camera with long-range microscopy optics, and quantitative results are extracted by image analysis. Process parameters such as carrier gas flow rate, powder mass flow rate and laser mode of operation (CW and pulsed) and process variables such as quantized weld pool disturbance and end piece properties are correlated and analyzed. Scanning Electron Microscopy (SEM), Electron Backscatter Diffraction (EBSD) and Energy Dispersive X-ray Spectroscopy (EDS) are used to analyze deposited coatings in terms of elemental composition and flow properties in the weld pool. The disturbance of the weld pool is considered to be a crucial parameter to determine the surface roughness of the finished part. An inverse relationship is observed between the average surface disturbance of the weld puddle and the surface roughness of the part, and the carrier gas flow and dust mass flow affect the overall size of the weld puddle. The work has implications for the selection of process parameters for commercial laser deposition processes: the rate at which the powder is delivered to the weld pool may need to be considered, as well as the mass flow rate, when calculating the build rate and for a good surface finish, the minimum Rework required, a stable weld pool finish can be the worst case.

AB: Despite significant advances in optimizing the Laser Direct Metal Deposition (LDMD) process, fairly limited work has been reported on the impact of melt pool variables on the final properties of the deposit. This article considers the effects of process parameters and weld pool properties on powder deposition of Inconel 718 on a thin Ti-6Al-4V wall. A 1.5 kW diode laser and LDMD system are used to create a series of depositions. Images of the process are captured using copper vapor laser illumination and a high-speed camera with long-range microscopy optics, and quantitative results are extracted by image analysis. Process parameters such as carrier gas flow rate, powder mass flow rate and laser mode of operation (CW and pulsed) and process variables such as quantized weld pool disturbance and end piece properties are correlated and analyzed. Scanning Electron Microscopy (SEM), Electron Backscatter Diffraction (EBSD) and Energy Dispersive X-ray Spectroscopy (EDS) are used to analyze deposited coatings in terms of elemental composition and flow properties in the weld pool. The disturbance of the weld pool is considered to be a crucial parameter to determine the surface roughness of the finished part. An inverse relationship is observed between the average surface disturbance of the weld puddle and the surface roughness of the part, and the carrier gas flow and dust mass flow affect the overall size of the weld puddle. The work has implications for the selection of process parameters for commercial laser deposition processes: the rate at which the powder is delivered to the weld pool may need to be considered, as well as the mass flow rate, when calculating the build rate and for a good surface finish, the minimum Rework required, a stable weld pool finish can be the worst case.

M3 - artillery

VL-25

SP-1372

PE-1380

JO - Materials and Manufacturing Process

JF - Materials and manufacturing processes

Serial number - 1042-6914

ES - 12

Y -

Salman A., Pinkerton A., Shah K, Few.Effects of weld pool variables and process parameters on direct laser metal deposition of aerospace alloys.Materials and manufacturing processes. 2010;25(12):1372-1380.