Optimization of Nd:YAG laser welding parameters for sealing small titanium tube ends

Lee, Hyoung-Keun; Han, Hyon-Soo; Son, Kwang-Jae; Hong, Soon-Bog

doi:10.1016/j.msea.2005.09.059

Cited by 72 publications

(19 citation statements)

References 4 publications

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“…RSM has been applied to the optimisation of laser welding [17][18][19][20] and laser-cutting processes [21], but never before to LIBS hardware optimisation of hardware configuration.…”

Section: Response Surface Methodologymentioning

confidence: 99%

Application of Response Surface Methodology to laser-induced breakdown spectroscopy: Influences of hardware configuration

Cowpe

Astin

Pilkington

et al. 2007

Spectrochimica Acta Part B: Atomic Spectroscopy

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Response Surface Methodology (RSM) was employed to optimise LIBS analysis of single crystal silicon at atmospheric pressure and under vacuum conditions (pressure ~10 -6 mbar). Multivariate analysis software (StatGraphics 5.1) was used to design and analyse several multi-level, full factorial RSM experiments. A Quality Factor (QF) was conceived as the response parameter for the experiments, representing the quality of the LIBS spectrum captured for a given hardware configuration. The QF enabled the hardware configuration to be adjusted so that a best compromise between resolution, signal intensity and signal noise could be achieved. The effect on the QF of 1 simultaneously adjusting spectrometer gain, gate delay, gate width, lens position and spectrometer slit width was investigated, and the conditions yielding the best QF determined.

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“…RSM has been applied to the optimisation of laser welding [17][18][19][20] and laser-cutting processes [21], but never before to LIBS hardware optimisation of hardware configuration.…”

Section: Response Surface Methodologymentioning

confidence: 99%

Application of Response Surface Methodology to laser-induced breakdown spectroscopy: Influences of hardware configuration

Cowpe

Astin

Pilkington

et al. 2007

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…The results indicated that the laser power has the most significant effect on the impact strength. [4] have used the Taguchi method and regression analysis in order to optimize Nd-YAG laser welding parameters (nozzle type, rotating speed, title angle, focal position, pumping voltage, pulse frequency and pulse width) to seal an iodine-125 radioisotope seed into a titanium capsule. The accurate control of the melted length of the tube end was the most important to obtain a sound sealed state.…”

Section: Literaturementioning

confidence: 99%

Analysis of the Effect of Electrode Polarity on Dilution in Submerged Arc Welding Process

singh¹

2017

ijmeit

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“…Hu et al [6] employed a high-precision magnetic sensor to detect the weld defects in aluminium friction stir welds. Lee et al [7] have used the Taguchi method and regression analysis in order to optimize Nd-YAG laser welding parameters.…”

Section: Introductionmentioning

confidence: 99%

Parametric optimization of MIG welding on 316L austenitic stainless steel by Taguchi method

Ghosh¹,

Pal²,

Nandi³

2016

Archives of Materials Science and Engineering

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Purpose: Taguchi design has been adopted in order to identify optimal parametric combination for desired quality of weld. Design/methodology/approach: A plan of experiments based on Taguchi technique has been used. An orthogonal array, signal to noise (S/N) ratio and analysis of variance (ANOVA) are employed to study the welding characteristics of material & optimize the welding parameters. Findings: The welding investigators have always been in search for better quality of weldment. In present work, effect of current, gas flow rate and nozzle to plate distance on quality of weld in metal gas arc welding of Austenitic stainless steel AISI 316L has been studied through experiment and analyses. Butt welded joints have been made by several levels of current, gas flow rate and nozzle to plate distance. The result computed is in form of contribution from each parameter, through which optimal parameters are identified for maximum tensile strength and percentage elongation. Research limitations/implications: The main objective of the present study was to apply the Taguchi method to establish the optimal set of control parameters for the welding. The Taguchi method is employed to determine the optimal combination of design parameters, including: current, gas flow rate and nozzle to plate distance. Practical implications: Weld quality mainly depends on features of bead geometry, mechanical-metallurgical characteristics of the weld as well as on various aspects of weld chemistry and these features are expected to be greatly influenced by various input parameters like current, voltage, electrode stick-out, gas flow rate, edge preparation, position of welding, welding speed and many more in metal inert gas (MIG) welding. Moreover, the cumulative effect of the mentioned quality indices determines the extent of joint strength that should meet the functional aspects of the weld in practical field of application. Therefore, preparation of a satisfactory good quality weld seems to be a challenging job. Originality/value: The result computed is in form of contribution from each parameter, through which optimal parameters are identified for maximum tensile strength and percentage elongation. This paper presents new results of optimization using Taguchi method.

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Optimization of Nd:YAG laser welding parameters for sealing small titanium tube ends

Cited by 72 publications

References 4 publications

Application of Response Surface Methodology to laser-induced breakdown spectroscopy: Influences of hardware configuration

Application of Response Surface Methodology to laser-induced breakdown spectroscopy: Influences of hardware configuration

Analysis of the Effect of Electrode Polarity on Dilution in Submerged Arc Welding Process

Parametric optimization of MIG welding on 316L austenitic stainless steel by Taguchi method

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