A REVIEW ON WIRE ARC ADDITIVE MANUFACTURING FOR INDUSTRIAL COMPONENT REPAIR AND RESTORATION

Tóm tắt

This review paper summarizes recent advancements in wire arc additive manufacturing (WAAM) for repairing and restoring industrial components under harsh conditions. WAAM, a directed energy deposition process with a wire feed system, offers rapid production, high material efficiency, and a sustainable alternative to conventional repair methods. Key studies on process optimization, surface preparation, shielding gas selection, thermal management, and post-deposition heat treatments are discussed. Additionally, hybrid approaches combining WAAM with precision machining for complex components, such as forging dies and aerospace parts, are examined. The review also identifies current challenges and outlines future research directions in WAAM-based repair and restoration.