Combined use of blackbody and infrared radiation for accurate measurement of temperature field of aluminum alloys

Ni, Nan; Zhang, Kaiyue; Hu, Jiang; Li, Linying; Mi, Songtao; Zhang, Yucun; Zhang, Yungang

doi:10.1016/j.ijleo.2022.169763

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…Studying the theoretical analysis of welding heat generation and the impact of different welding process parameters on weld quality is of great significance. [18][19][20] By establishing a welding heat generation model and analyzing the overall heat generation mathematical model during the welding process, a theoretical basis is provided for the optimization of welding process parameters.…”

Section: Heat Generation Model Of Static Shoulder Friction Stir Weldingmentioning

confidence: 99%

Intelligent optimization of non-rigidly supported stationary shoulder friction stir welding parameters

Jin,

Miao,

Cui

et al. 2024

Advances in Mechanical Engineering

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During the online welding of railway aluminum alloy trucks using fixed shoulder stirring friction welding technology, defects such as flying edges, cracks, and tunnels may occasionally occur due to poor coordination of the welding process parameters. This inconsistency can compromise the success rate of the welding. To enhance the quality and efficiency of the welding repairs, an optimization of the welding process parameters of the developed equipment was undertaken. An intelligent prediction model for welding parameters was established based on the BSO-BP neural network. The model was trained with 17 sets of authentic welding data, and its accuracy was validated through a comparison of predictive outputs with actual welding outcomes. The BSO-BP neural network demonstrated a maximum error of 1.85% and a relative error of 1.27%, showing a marked improvement over traditional BP neural network predictions. Utilize the optimized welding process parameters obtained from a trained predictive model to conduct welding experiments under actual working conditions. During the experiment, the deformation of the test plates was minimal. The resulting welds were smooth, free of defects such as flash and grooves, and the overall welding quality was good. The tensile strength of the welds, at 262.95 MPa, was close to the predicted results and reached 78.49% of the base material’s tensile strength. In the microstructure of the weld, sporadically distributed dimples of varying sizes can be observed, indicating the presence of second phase particles which contribute to enhancing the tensile strength of the weld, thereby meeting the strength requirements of the aluminum alloy car body. The parameter optimization method used has certain reference value and can provide guidance for similar research.

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Section: Heat Generation Model Of Static Shoulder Friction Stir Weldingmentioning

confidence: 99%

Intelligent optimization of non-rigidly supported stationary shoulder friction stir welding parameters

Jin,

Miao,

Cui

et al. 2024

Advances in Mechanical Engineering

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“…The well-known industrial light metal aluminum alloy, which has the advantages of low density, high specific strength, ease of processing, and excellent corrosion resistance, is extensively employed in ships, automobiles, aerospace, and hydraulic machinery. [1][2][3] In these hydraulic systems, cavitation occurs due to local pressure fluctuations that induce bubbles to form in the fluid. The growth and collapse of cavitation bubbles can cause surface erosion and material loss 4 due to shock waves 5,6 or microjets, 7,8 which restricts engineering applications of aluminum alloy material.…”

Section: Introductionmentioning

confidence: 99%

A study on surface microgrooves in cavitation test of 6061 aluminum alloy

Wang

Cheng

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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Microgrooves of different widths and microgrooves structures with varying widths were engraved on the surface of 6061 aluminum alloy using fiber laser marking equipment. In order to investigate the influence of the width of microgrooves on its cavitation behavior, cavitation tests on the microgroove structure were performed using an ultrasonic vibration apparatus. The hardness, the surface roughness, and the microscopic morphology of the samples were examined with a digital microhardness tester, a digital three-dimensional video microscope, and a scanning electron microscope, respectively. The results demonstrated that, increasing microgroove size was conducive to inhibition of cavitation erosion while decreasing microgroove size had an opposite effect. The surface microgrooves group elongated the incubation period of aluminum alloy in the cavitation tests, and noticeably increased the cavitation resistance of the aluminum alloy. It was also concluded that, the microgrooves group could transform microjets aiming at the alloy surface to the inside of microgrooves, and absorbed the impacted energy from microjets, leading to a remarkable anticavitation effect.

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Effects of wick structure and installation angles on the heat transfer characteristics of concentric annular heat pipes: Experimental investigation

Sun,

Yang,

Zhou

2024

Case Studies in Thermal Engineering

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Combined use of blackbody and infrared radiation for accurate measurement of temperature field of aluminum alloys

Cited by 6 publications

References 26 publications

Intelligent optimization of non-rigidly supported stationary shoulder friction stir welding parameters

Intelligent optimization of non-rigidly supported stationary shoulder friction stir welding parameters

A study on surface microgrooves in cavitation test of 6061 aluminum alloy

Effects of wick structure and installation angles on the heat transfer characteristics of concentric annular heat pipes: Experimental investigation

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