Consequences of the rotational speed and profile of tool pin in microstructure and mechanical properties of AA8011/ZrO2 composite produced by FSW

Naik, L. Srinivas; Boda, Hadya

doi:10.1007/s12008-023-01295-8

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…For single-objective optimization problems, the Taguchi method is more appropriate (Mohamed et al, 2015). In the case of multiple responses optimization, the utility concept based on Taguchi is utilized (Tong et al, 1997;Gaitonde et al, 2009;Akin & Fedai, 2018;Lonavath & Boda, 2023;Anantha et al, 2023a). Applying Taguchi method concepts, a reliable multi-objective optimization technique has been used.…”

Section: Optimal Solutionmentioning

confidence: 99%

Optimal Constrained Groove Pressing Process Parameters Applying Modified Taguchi Technique and Multi-Objective Optimization

Anantha,

Koneru,

Pyatla

et al. 2024

JST

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Most engineering problems are complicated, and developing mathematical models for such problems requires understanding the phenomena through experiments. It is well known that as processing parameters with assigned levels increase, so does the number of experiments. By minimizing the number of experiments, Taguchi’s method of experimental design will help to furnish the idea of full factorial experimental design. Taguchi’s method is more appropriate for single-objective optimization problems and needs modifications while dealing with multi-objective optimization problems. Aluminum alloys are in great demand in today’s automotive and aerospace sectors due to their low density, good corrosion resistance, and excellent machinability. The material is subjected to a constrained groove pressing (CGP) process to obtain microstructural grain refinement with enhanced mechanical behavior. This paper considers AA6061 material having major alloys such as silicon and magnesium. For this work, 3 CGP process parameters (viz., displacement rate, plate thickness and number of passes) are assigned 3 levels to each parameter, acquired the test data, viz., grain size (gs), micro hardness (hs), and tensile strength (ult) based on L9 orthogonal array of Taguchi. Using a modified version of Taguchi’s methodology, it is possible to estimate the range of grain size (gs), micro hardness (hs), and tensile strength (σult) for effective combinations of the CGP processing parameters and validate the results with existing test data. A more dependable and simpler multi-objective optimization procedure is used to choose the optimal CGP processing parameters.

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Section: Optimal Solutionmentioning

confidence: 99%

Optimal Constrained Groove Pressing Process Parameters Applying Modified Taguchi Technique and Multi-Objective Optimization

Anantha,

Koneru,

Pyatla

et al. 2024

JST

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“…But sometimes HAZ can be absent depending on the peak temperature reached during welding. In addition to being subjected to plastic deformation, the HAZ is also subjected to thermal influence, which modifies the HAZ and causes the grains to become coarser (Meyghani and Wu, 2020) (Naik and Hadya, 2023). Rotational and welding (transverse) speeds, as well as tilt angle and geometry, all have a role in determining how the materials flow during a process involving friction (Milagre et al , 2019; Moraitis and Labeas, 2010; Shahraki et al , 2013).…”

Section: Introductionmentioning

confidence: 99%

Characterization and optimization of weld properties due to the effect of different pin profiles for AA8011 – based friction stir welding

Naik

Boda

2023

WJE

Self Cite

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Purpose This Friction stir welding study aims to weld thick AA8011 aluminium plates, and the interface joints created with a variety of tool pin profiles were examined for their effects on the welding process. Design/methodology/approach Scanning electron microscopy and optical microscopy and X-ray diffraction were used to examine the macro and micro-structural characteristics, as well as the fracture surfaces, of tensile specimens. The mechanical properties (tensile, hardness tests) of the base metal and the welded specimens under a variety of situations being tested. Additionally, a fracture toughness test was used to analyse the resilience of the base metal and the best weldments to crack formation. Using a response surface methodology with a Box–Behnken design, the optimum values for the three key parameters (rotational speed, welding speed and tool pin profile) positively affecting the weld quality were established. Findings The results demonstrate that a defect-free junction can be obtained by using a cylindrical tool pin profile, increasing the rotational speed while decreasing the welding speeds. The high temperature and compressive residual stress generated during welding leads to the increase in grain size. The grain size of the welded zone for optimal conditions is significantly smaller and the hardness of the stir zone is higher than the other experimental run parameters. Originality/value The work focuses on the careful examination of microstructures behaviour under various tool pin profile responsible for the change in mechanical properties. The mathematical model generated using Taguchi approach and parameters was optimized by using multi-objectives response surface methodology techniques.

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Effect of Al2TiO5 Particle on the Temperature Distribution of Friction Stir Welded Dissimilar Aluminium Composites Using Response Surface Methodology

Senthilraj,

Rajamurugan

2024

Trans Indian Inst Met

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Consequences of the rotational speed and profile of tool pin in microstructure and mechanical properties of AA8011/ZrO2 composite produced by FSW

Cited by 3 publications

References 31 publications

Optimal Constrained Groove Pressing Process Parameters Applying Modified Taguchi Technique and Multi-Objective Optimization

Optimal Constrained Groove Pressing Process Parameters Applying Modified Taguchi Technique and Multi-Objective Optimization

Characterization and optimization of weld properties due to the effect of different pin profiles for AA8011 – based friction stir welding

Effect of Al2TiO5 Particle on the Temperature Distribution of Friction Stir Welded Dissimilar Aluminium Composites Using Response Surface Methodology

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