Aluminum is commonly accessible light weight, low melting temperature non-ferrous metal. Many industries, including aerospace, medical, automotive, and home and personal care, use aluminum and its alloys. A wide range of applications and material substitutes are influenced by aluminum's unique high strength-to-weight ratio. The aluminum alloy blend with silicon carbide ceramic particles and high modulus e-glass fiber form hybrid composites an advantage over alloys. Using a traditional stir casting process, the current work primarily focuses on fabricating composite materials (AA2024, AA6061, and AA7075). These materials are then joined using friction stir welding, where various welding parameters are used, including spindle speed (600, 900, and 1200 rpm) and feed rates (40, 80, and 120 mm/min) utilizing an ETA manufacturing FSW machine. Weld nugget zone machined as an ASTM fretting specimen and subjected to a fretting wear test to evaluate tribological properties with varying stoke length. The addition of reinforcements significantly reduced fretting wear compared to the base AA2024, AA6061, and AA7075 and the fretting wear increased with increased welding feed rate and the wear was found to be maximum at feed rate of 120 mm/min and minimum at feed rate of 40 mm/min and tabulated the fretting results among three base and composite plates.

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A Comprehensive Analysis and Experimental Investigation of Tribological Characteristics of Friction Stir Welded Aluminum-Based Metal Matrix Composite Plates

  • R. Shwethasree,
  • J. T. Thirukrishna,
  • M. Sadashiva,
  • S. G. Spandana

摘要

Aluminum is commonly accessible light weight, low melting temperature non-ferrous metal. Many industries, including aerospace, medical, automotive, and home and personal care, use aluminum and its alloys. A wide range of applications and material substitutes are influenced by aluminum's unique high strength-to-weight ratio. The aluminum alloy blend with silicon carbide ceramic particles and high modulus e-glass fiber form hybrid composites an advantage over alloys. Using a traditional stir casting process, the current work primarily focuses on fabricating composite materials (AA2024, AA6061, and AA7075). These materials are then joined using friction stir welding, where various welding parameters are used, including spindle speed (600, 900, and 1200 rpm) and feed rates (40, 80, and 120 mm/min) utilizing an ETA manufacturing FSW machine. Weld nugget zone machined as an ASTM fretting specimen and subjected to a fretting wear test to evaluate tribological properties with varying stoke length. The addition of reinforcements significantly reduced fretting wear compared to the base AA2024, AA6061, and AA7075 and the fretting wear increased with increased welding feed rate and the wear was found to be maximum at feed rate of 120 mm/min and minimum at feed rate of 40 mm/min and tabulated the fretting results among three base and composite plates.