A novel combined MCDM approach for parametric optimization of friction stir lap welding of dissimilar polycarbonate to nylon-6

A novel combined MCDM approach for parametric optimization of friction stir lap welding of dissimilar polycarbonate to nylon-6 | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article A novel combined MCDM approach for parametric optimization of friction stir lap welding of dissimilar polycarbonate to nylon-6 Nisith K. Goswami, Tarakeswar Barik, Kamal Pal, Raj Ku. Bisoyi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7404325/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract The fabrication of dissimilar thermoplastic polymers are often essential for wings and fuselage panels in aircraft and lighting systems of automobile parts. Several solid state welding procedures are generally recommended for the joining of amorphous and semi-crystalline unlike polymers. The present work addresses the influence tool motion and its positioning on dissimilar bonding of polycarbonate to nylon-6 by using different tool pin profiles such as hexagonal, square and cylindrical in friction stir lap welding. The optimal process variables to achieve high joint strength with adequate ductility and hardness in the weld was found through different multi-criteria decision making (MCDM) approaches. The weld undercut towards advancing and hardness deviation over rear side along dissimilar joint interface at very high or low tool revolving speed, respectively were the primarily indicators of the weld quality. The weld strength was 31 MPa (i.e. joint efficiency 67.5%) at high tool revolving speed (2400 rpm), low traverse speed (15 mm/min) and low plunge depth (0.1 mm) using cylindrical tool pin due to greater stirring torque. In contrary, it was marginally improved (joint efficiency 68%) even at low tool spinning speed (1600 rpm) because of necessary material flow using higher swept ratio hexagonal pin. The evaluation using three MCDM approaches such as CoCoSo, MABAC, and GRA revealed intricate relationships and varying degrees of agreement. CoCoSo and GRA exhibited moderate similarity, indicating a noteworthy alignment in their outcomes. A comparative analysis showed some noteworthy accomplishments with significant correlation (0.988) between CoCoSo and MABAC approaches. FSLW joint strength tool thrust stirring torque polycarbonate nylon-6 MCDM CoCoSo MABAC GRA Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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