Synergistic effects in hydrodynamic cavitation abrasive finishing for internal surface-finish enhancement of additive-manufactured components

作者: Arun Prasanth Nagalingam , Hemanth Kumar Yuvaraj , Swee Hock Yeo , None

DOI: 10.1016/J.ADDMA.2020.101110

关键词:

摘要: Abstract Surface finishing additive-manufactured (AM) internal channels is challenging. In this study, a novel hydrodynamic cavitation abrasive (HCAF) technique proposed and its feasibility for surface analyzed. performed using controlled erosion microparticle abrasion phenomena. Various surface-finishing conditions were employed to investigate material removal finish enhancement via synergistic effects in the HCAF process. To quantify contributions from each mechanism, additively manufactured AlSi10Mg finished isolated of a) liquid impingement, b) absolute erosion, c) abrasion, d) cavitation-assisted abrasion. The rate total thickness loss established as measurands intensity finish. yielded 80% higher over 90% (Ra) surface-finish than those pure A synergy map contribution finishing. material-removal mechanism explained morphology observations. Hydrodynamic gradually removed loosely attached asperities AM channels. microabrasives present cavitating flow enhanced favorably, creating effect that resulted significantly improved quality. findings suggest are effective enhancing quality components.

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