Infrared measurement and simulation of mag-nesium alloy welding temperature field

Liu, Liming; Chi, Mingsheng; Huang, Runsheng; Song, Gang; Zhou, Yang

doi:10.1360/102005-201

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…Attempts to measure superficial temperature of the weld pool exist in literature review. Most of this works concerns feasibility studies of IR thermography sensing with the aim to control cooling rate near the weld pool, [7][8][9][10][11][12][13][14] for detecting contaminant/impurities on the molten pool surface, [15] for penetration sensing, [16,17] or for monitoring the size of the weld pool. [18] Few works concerns absolute temperature measurement on the weld pool surface.…”

Section: Introductionmentioning

confidence: 99%

Weld pool surface temperature measurement from polarization state of thermal emission

Coniglio

Mathieu

Aubreton

et al. 2016

Quantitative InfraRed Thermography Journal

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This paper presents a passive polarimetry method using a division of aperture optical device in order to measure the temperature distribution at the weld pool surface. Thermal emission from a hot liquid metal was investigated at a near-infrared wavelength corresponding to a blind spectral window of a helium plasma generated during gas tungsten arc welding process. The refractive index of liquid metal and the surface radiance are deduced from the polarisation state of thermal emissions. Based upon the knowledge of both characteristics, the temperature distribution can be calculated.

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Section: Introductionmentioning

confidence: 99%

Weld pool surface temperature measurement from polarization state of thermal emission

Coniglio

Mathieu

Aubreton

et al. 2016

Quantitative InfraRed Thermography Journal

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Effects of submerged convective cooling in the turning of AZ31 magnesium alloy for tool temperature and wear improvement

Zakaria

Mustapha

Azmi

et al. 2022

Int J Adv Manuf Technol

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Low melting point and material adhesion attributed by the magnesium alloy led to extreme built-up edge (BUE) and built-up layer (BUL) formations. Dry machining is favourable for machining magnesium alloy; however, this strategy in icts excessive adhesive wear on the cutting tool. Therefore, this current work focuses on innovative cooling technique known as submerged convective cooling (SCC) for the turning of the AZ31 magnesium alloy. Prior to cutting experiment, a computational uid dynamics (CFD) simulation was conducted to evaluate internal structure of cooling module. Based on the CFD simulation, small inlet/outlet diameter signi cantly contribute to reduction of tool temperature because of effective heat transfer coe cient of cooling uid in the SCC. Experimental results revealed that SCC has effectively reduced the tool temperature by 50% and contributed to 37% improvement in surface roughness when compared to dry cutting. Finally, both BUE and BUL were observed in dry and SCC conditions, but the severity of these wear mechanisms improved or decreased remarkably under SCC conditions.

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Enhanced surface integrity of AZ31B Mg alloy by cryogenic machining towards improved functional performance of machined components

Outeiro

Batista

et al. 2012

International Journal of Machine Tools and Manufacture

196

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Infrared measurement and simulation of mag-nesium alloy welding temperature field

Cited by 5 publications

References 10 publications

Weld pool surface temperature measurement from polarization state of thermal emission

Weld pool surface temperature measurement from polarization state of thermal emission

Effects of submerged convective cooling in the turning of AZ31 magnesium alloy for tool temperature and wear improvement

Enhanced surface integrity of AZ31B Mg alloy by cryogenic machining towards improved functional performance of machined components

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