Parameter optimisation and failure load prediction of resistance spot welding of aluminium alloy 57547

Đurić, Aleksija; Klobčar, Damjan; Milčić, Dragan; Marković, Branislav

doi:10.1088/1757-899x/659/1/012042

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…With samples created under variable welding currents I, electrode forces F, welding times T, preheating currents IA, single-predictive optimization and spot break load estimation can be performed. Signal-to-Noise (S/N) ratio analysis and response surface modeling can be performed using RSM (response surface methodology) for optimization and prediction by Duric et al [5].…”

Section: Introductionmentioning

confidence: 99%

Building Up Mathematical Modeling Using Spot Welding Parameters and Prediction Weld Nugget by Minitab

Çekiç

Çavdar

2021

European Mechanical Science

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In serial production, problems are constantly encountered in the selection of welding parameters due to the excess of welding parameters and variations. In order to compensate for these variations, mostly high energy flux is used. In this study, an approach developed in order to estimate weld nugget diameter in determining the welding parameters for sheets with a thickness of 0.6-3 mm is introduced. Sheet is an iron-based material that has been given certain mechanical and chemical properties in standards, turned into sheets from thick plates by rolling processes. Minitab statistical program was used to create experimental data and mathematical operations. First of all, 7 source parameters were selected and experimental study was carried out for 64 experiments using the ½ partition factorial method of disegn of experiments(DOE) in Minitab software. With the experiments, real weld nugget diameters were obtained. These results were transferred to the Minitab software and the mathematical model of the system was established. Weld nugget diameter estimation procedures were carried out using the datas of factorical disegn of experiments(DOE). Test and prediction data were transferred to Minitab software, regression graph was drawn and R-Sq and R-Sq (adj) values were calculated. In addition, samples were created with randomly selected data for verification and comparison was made by transferring them to Minitab. According to the results of this study, remarkable accuracy rates have been achieved in the weld nugget diameter estimation with Minitab.

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Section: Introductionmentioning

confidence: 99%

Building Up Mathematical Modeling Using Spot Welding Parameters and Prediction Weld Nugget by Minitab

Çekiç

Çavdar

2021

European Mechanical Science

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Vibration and low velocity impact behavior of hybrid and nano composite materials

Abid,

Abdulsamad

2024

Electromechanical Engineering and Its Applications

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Study of Vibration Strength of D16 Aluminum Alloy Joints Welded Applying Resistance Spot Welding

Balashov

Zezyulya

Bulychev

et al. 2023

Proceedings of the SWSU

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Purpose of research is to develop and test a technique and perform an experimental study of the vibration strength of D16 aluminum alloy joints welded applying resistance spot welding.Methods. Test coupons were made from 1 mm thick D16 aluminum alloy sheet blanks applying resistance spot welding. A feature of the proposed test is the implementation of a symmetrical loading cycle. During the tests, the number of cycles to failure depending on the range of vibrations was recorded. Annealing and thermomechanical straightening were carried out to exclude helical bending after cutout. After deburring and root facing, the surface of the coupons was prepared for welding using chemical etching. The coupons were welded using a TECNA 8214N spot welding machine. The welding current was 30 kA, the welding duration was 0.1 s, the electrodes force was 180 daN. The static shear strength of the welded joint was studied using a UTS 110M-5 1-U tensile testing machine. The breaking force was 3.66 kN. The peculiarity of the proposed test is the implementation of a symmetrical loading cycle. During the tests, the number of cycles to failure depending on the range of vibrations was recorded.Results. As a result of the statistical analysis of the study results, a linear mathematical relationship between the logarithms of the number of cycles to failure and the amplitude of vibrations was obtained. Depending on the range of vibrations, characteristic zones of destruction were revealed. To provide the possibility of comparing the results of vibration obtained under different conditions of fixing the samples, it is proposed to use the range of vibration displacement per unit length of the work[iece as the ordinate.Conclusion. A technique or studying the vibrational strength of joints welded by resistance spot welding under conditions of a symmetrical loading cycle is proposed and tested. For the studied coupons, the equality of the welded joint to the base metal is achieved at the value of the logarithm of the ratio of the range of vibration displacement per unit length of the coupons equal to 0.01.

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Parameter optimisation and failure load prediction of resistance spot welding of aluminium alloy 57547

Cited by 3 publications

References 4 publications

Building Up Mathematical Modeling Using Spot Welding Parameters and Prediction Weld Nugget by Minitab

Building Up Mathematical Modeling Using Spot Welding Parameters and Prediction Weld Nugget by Minitab

Vibration and low velocity impact behavior of hybrid and nano composite materials

Study of Vibration Strength of D16 Aluminum Alloy Joints Welded Applying Resistance Spot Welding

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