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Effects of select parameters on electron beam welding of Al6061-T6 alloy
Yost, Thomas E.
Yost, Thomas E.
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2015
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Abstract
Electron beam welding was used for joining Al6061-T6, precision machined, cylindrical sections. The welded assembly exhibited a minimum amount of distortion, but a better understanding of the effects of several key welding parameters on the structural integrity of the weld was required. The contents of this document describe the relative importance and interaction between welding speed, volume of filler, and beam pattern on the microstructural and mechanical properties of the welded joint. Understanding of the relationship between welding parameters and weld properties was accomplished by macrophotography and microstructural examination, microhardness testing, energy dispersive spectroscopy (EDX), and mechanical tensile testing of weld coupons. The results of this study will help quantify the robustness of the EBW process for this common aerospace material and joint geometry and will help determine the impacts of process deviations on weld fidelity in the production environment.
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