Optimization of EBW Parameters for 2219 AL-Alloy Using Grey Relation Method

Sobih, M.; Elseddig, Zuhair; Almazy, Khalid; Youssef, Amro M.; Sallam, M.

doi:10.4028/www.scientific.net/amr.591-593.507

Cited by 7 publications

(8 citation statements)

References 19 publications

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“…A single-pass weldment of the prepared specimens was conducted using 60 kW Seo TECH-60 electron beam machine at vacuum of 10 −5 mbar. The specimens were welded using the optimal parameters obtained from previous study [13]; these parameters are welding speed 10 mm/s; beam current 18 mA; focus current 909 mA; and sweep size 6. These parameters lead to maximizing hardness, tensile strength, and penetration depth and minimizing bead width.…”

Section: Methodsmentioning

confidence: 99%

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Experimental Evaluation and Characterization of Electron Beam Welding of 2219 AL-Alloy

Sobih

Elseddig²,

Almazy

et al. 2016

Indian Journal of Materials Science

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Aiming to reduce the weight of components, thus allowing a profit in terms of energy saving, automotive industry as well as aircraft industry extensively uses aluminum alloys. The most widely used joining technology in aircraft industry is riveting, while welding seems to be used in the car industry in the case of aluminum alloys. However, welding technology is characterized by many defects, such as gas porosity; oxide inclusions; solidification cracking (hot tearing); and reduced strength in both the weld and the heat affected zones which could limit its development. Many techniques are used for aluminum alloys welding, among them is electron beam welding (EBW), which has unique advantages over other traditional fusion welding methods due to high-energy density, deep penetration, large depth-to-width ratio, and small heat affected zone. The welding parameters that yield to optimal weld joint have been previously obtained. These optimal parameters were validated by welding a specimen using these parameters. To evaluate this optimal weld joint, complete, microstructural observations and characterization have been carried out using scanning electron microscopy, optical microscopy, and energy dispersive X-ray analysis. This evaluation leads to description and quantification of the solidification process within this weld joint.

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Section: Methodsmentioning

confidence: 99%

“…This work followed an optimization process using Taguchi method with grey relational analysis to find out the optimal weld bead geometry and mechanical properties of 2219 aluminum alloy [13]. Thus, the objective of this study is to clarify the appropriate welding conditions for good welds.…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation and Characterization of Electron Beam Welding of 2219 AL-Alloy

Sobih

Elseddig²,

Almazy

et al. 2016

Indian Journal of Materials Science

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“…Zhao et al [239] studied the microstructure and mechanical properties of welding joints of components made of 5A06 alloy obtained using double-sided double-arc welding DSAW and laser-TIG LADSW double-sided welding joints. They found that the energy efficiency of LADSW exceeded that of DSAW.…”

Section: The Laser -Mig Hybrid Welding Seems To Be Particularly Usefu...mentioning

confidence: 99%

“…According to [239] Electron beam welding (EBW) is advantageous compared to the other traditional fusion welding methods due to its high-energy density, deep penetration, large depth-towidth ratio and very small HAZ. The authors, using Taguchi method with grey relational analysis, optimized EB welded joint of 2219 alloy, from the yield strength, hardness, and bead geometry.…”

Section: Electron Beam Weldingmentioning

confidence: 99%

Studies on Quality of Joints and Phenomena Therein for Welded Vehicle Components Made of Aluminium Alloy – a Review

Derbiszewski,

Obraniak,

Rylski

et al. 2024

Preprint

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To fulfil a need of limitation automotive emissions the reduction of vehicle weight is widely recommended and achieved in many ways, both by the construction of individual elements of the vehicle, and by the selection of light materials including Al alloys. Connecting these elements with each other and with elements made of iron alloys can be realized, inter alia, by welding or stir welding. However, the quality of the welds obtained varies widely and depends on many design, operational and environmental factors. The present study focused on a review of various welding technics used to joint both similar and dissimilar Al alloys utilized in automotive industry, the effect of various process parameters on welds quality, and phenomena appeared in such welds..

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“…Oscillation sizes designated as 0, 3, and 6 were utilized. The experiment found the following optimal welding parameters: beam current of 18 mA, focusing current of 909 mA, welding speed of 10 mm/s, and oscillation size of 6 [31]. Extensive research on numerical analysis of fluid transport phenomena and spiking formation of 20 mm thick electron beam welded AA2219 alloy was conducted by Liu et al Beads with partial penetration to base material were fabricated to compare the experimental and numerical simulation results.…”

Section: Introductionmentioning

confidence: 99%

The influence of focusing current on the microstructure of 2219 high-strength aluminum alloy electron beam welded joints

Sahul,

Rusynyk

et al. 2024

Preprint

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The paper concerns the analysis of the influence of the focusing current on the microstructure of aluminum alloy welded joints produced by electron beam welding. 2219 high-strength aluminum copper alloy was used as the base material. 2219 aluminum alloy is extensively used in the aerospace industry due to its excellent mechanical properties, high strength-to-weight ratio, and good corrosion resistance. Fuselage skins, wing panels, and rocket fuel tanks are some of the applications of the mentioned alloy. Bead-on-plate welded joints were produced within the study. Focusing currents of 629, 634, 639, 644, and 649 mA were utilized. Focusing current 639 mA ensures a sharp focus. The higher focusing current resulted in the production of a smoother weld bead. The narrowest weld was recorded when 629 mA focusing current was used. In the case of focusing currents 639, 644, and 649 mA, it can be stated that the higher the focusing current, the narrower the weld root. Except for a slight deviation in the case of the 629 mA focusing current application, the higher the focusing current, the larger the cross-sectional area of weld metal. Furthermore, the higher the focusing current, i.e., set up the focus position above the surface of materials to be welded, the larger the dendrite size. The finest dendrites were observed in the case of 629 mA focusing current (under focusing of the electron beam). Contrarily, the coarsest dendrites were documented when the highest focusing current, i.e., 649 mA, was used (over-focusing of the electron beam).

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Optimization of EBW Parameters for 2219 AL-Alloy Using Grey Relation Method

Cited by 7 publications

References 19 publications

Experimental Evaluation and Characterization of Electron Beam Welding of 2219 AL-Alloy

Experimental Evaluation and Characterization of Electron Beam Welding of 2219 AL-Alloy

Studies on Quality of Joints and Phenomena Therein for Welded Vehicle Components Made of Aluminium Alloy – a Review

The influence of focusing current on the microstructure of 2219 high-strength aluminum alloy electron beam welded joints

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