The Influence of Friction Stir Welded Process Parameters of Aa2519-T62 on Joint Quality Defined by Non-Destructive Laser Amplified Ultrasonic Method and by Microstructure Analysis
Abstract:The presented research contains a description of a non-destructive laser ultrasound internal structure analysis of aluminium joints made by friction stir welding. In the research, four selected technological parameter groups were taken into account. Modifications used in different parameter groups included changing tool traverse speeds and also its rotation speeds. The most important goal of this research was to determine the joint quality using a non-destructive laser amplified ultrasound method To verify ob… Show more
“…Application of optimization procedure is also planned to define the optimal geometrical parameters of the final product. The authors recently have carried out a series of studies aimed at testing and simulation of various structures manufactures using additive technologies [60,63,[68][69][70][71][72]73]. In Fig.…”
“…Application of optimization procedure is also planned to define the optimal geometrical parameters of the final product. The authors recently have carried out a series of studies aimed at testing and simulation of various structures manufactures using additive technologies [60,63,[68][69][70][71][72]73]. In Fig.…”
“…The in-situ heating and the heat generated by the IAFSW tool enhance the material flow and lead to the partial annealing on the X12Cr13 SS area, which considerably improves the elongation and produces a sound joint with improved tensile strength. Besides, specimens one and three exhibit brittle fracture due to insufficient and over material flows, respectively, and show some unmixed bimetallic structure [23]. Fractography image of IAFSW tensile specimen performed by scanning electron microscope (SEM) is showed in Figure 8.…”
Section: Mechanical Properties Of Iafsw Jointsmentioning
confidence: 99%
“…Figure 2a shows the induction in-situ heating coil leading FSW tool made of sintered tungsten carbidecobalt. A hexagonal profiled tool pin with a flat shoulder was adopted for this experiment [12,13]. Figure 2b shows the schematical image of the tool with dimensions.…”
This research aimed to study the induction in-situ heated hybrid friction stir welding (IAFSW) method to join AA5052 aluminium alloy with X12Cr13 stainless steel (SS) to enhance joint strength. The potency of this method on the mechanical properties and microstructural characterizations were also investigated. The results show that the transverse tensile strength gained was 94% of the AA5052 base metal that is 229.5 MPa. This superior strength was achieved due to the annealing that happened to the AA 5052 region and elevated plastic flow in the weld zone by the in-situ induction heating, which resulted in the elongation of the weld region. The microstructure characterization indicates that a refined grain structure was gained in the nugget zone without defects.
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