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All Journal Mechanical Engineering for Society and Industry
Rathod, Dinesh Wasudeo
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Exploring the feasibility of SS316L fabrication via CMT-based WAAM: A Comprehensive study on microstructural, mechanical and tribological properties Lone, Saboor Fayaz; Rathod, Dinesh Wasudeo; Ahmad, Sheikh Nazir
Mechanical Engineering for Society and Industry Vol 4 No 2 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.11848

Abstract

Additive manufacturing (AM) is revolutionizing production, enabling the customization of components for specific applications while promoting sustainable and on-demand manufacturing. This innovative method is especially valuable for producing intricate and custom parts from metallic materials like SS316L. Known for its excellent corrosion resistance and high strength, AISI 316L austenitic steel is widely utilized in aerospace, medical, automotive, and marine industries. This study explores the deposition of multi layered SS316L wall using the Cold Metal Transfer (CMT)-based Wire Arc Additive Manufacturing (WAAM) technique. The resultant multilayered wall exhibited seamless fusion devoid of macroscopic defects. A comprehensive analysis of its morphology, microstructure, mechanical properties, and tribological performance was conducted. Microstructural examination revealed a progression from fine equiaxed grains with ferrites in the lower sections to coarser columnar grains with acicular ferrites in the upper sections. Vickers microhardness and Charpy impact tests indicated a decline in hardness and impact energy from lower to upper sections. Uniaxial tensile tests demonstrated decreasing yield and ultimate tensile strengths, alongside significant ductility and toughness. The coefficient of friction and wear rate escalated with higher loads and from lower to upper sections, predominantly displaying abrasive wear mechanisms. These results validate the efficacy and durability of the SS316L CMT-based WAAM process in fabricating high-quality structures with tailored mechanical and tribological properties.
A Review on challenges and opportunities in wire arc additive manufacturing of aluminium alloys: Specific context of 7xxx series alloys Rathod, Dinesh Wasudeo
Mechanical Engineering for Society and Industry Vol 5 No 1 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12711

Abstract

Wire arc additive manufacturing (WAAM) has emerged as a promising and cost-effective method for producing components made from aluminum alloys, particularly in industries like aviation and aerospace. This process enables the fabrication of high-performance parts while minimizing manufacturing complexities. The demand for aluminum 7xxx series alloys is significant in these sectors due to their outstanding material properties. Efficient production methods, such as WAAM, are essential for utilizing these high-demand materials effectively. Despite the advantages of the WAAM process, challenges remain, particularly when layer-by-layer deposition of Al 7xxx (Al-Zn-Mg) alloys is considered. The high heat density generated during the arcing process can lead to issues such as zinc evaporation, hydrogen formation, and oxidation of the alloys. Additionally, the WAAM technique faces hurdles like delamination, porosity, hot cracking, and complex thermal cycles, all of which can adversely affect the performance of the components produced. This study aims to tackle the challenges associated with the WAAM process by employing Gas Metal Arc Welding techniques, while also exploring opportunities for further research in this area.
Co-Authors Ahmad, Sheikh Nazir Lone, Saboor Fayaz