{"id":3138,"date":"2023-11-28T11:18:52","date_gmt":"2023-11-28T10:18:52","guid":{"rendered":"https:\/\/www.mics.tech\/archivio\/?post_type=projects&#038;p=3138"},"modified":"2024-02-23T14:30:18","modified_gmt":"2024-02-23T13:30:18","slug":"6-02-development-of-additive-techniques-for-the-repair-regeneration-and-life-extension-of-machinery","status":"publish","type":"projects","link":"https:\/\/www.mics.tech\/archivio\/en\/projects\/6-02-development-of-additive-techniques-for-the-repair-regeneration-and-life-extension-of-machinery\/","title":{"rendered":"6.02 Development of additive techniques for the repair, regeneration and life extension of machinery"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">This project is based on additive manufacturing techniques for Repairing\/Remanufacturing, as opposed to recycling or reuse. These methods now offer the best value-added, resource-efficient approach to end-of-life product recovery.<br><br>To repair a component, surface and shape defects may need to be eliminated using traditional subtractive techniques, and then material is added to the surface. Material characteristics are restored by following conditioning, such as heat treatment or surface hardening. To meet dimensional tolerances, surfaces are then finished.<br>Automation employing of Additive Manufacturing (AM) technologies helps improve repair.<br><br>Issues in normal remanufacturing approach are: difficulties or challenges encountered when manually repairing and restoring components. Drawbacks of traditional techniques in the repair and restoration process (i.e dependency on skilled workers and issues related to inconsistency in the output quality).<br><br>The project will be articulated in:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Direct Energy Deposition and Cold Spray solutions for repair and life extension.<\/li>\n\n\n\n<li>Repair of metal components with Wire Arc AM technology and analysis of the environmental benefits associated to life extension.<\/li>\n\n\n\n<li>Use of hybrid sources to improve the deposition process and characteristics.<\/li>\n\n\n\n<li>Development of process chains for the repair of components based on the adoption of AM processes, reverse engineering, and conventional technologies (chip removal).<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>DED has many potentialities: some activities of repair and restoration could be automated using DED; DED deployed in repair and restoration could enhance remanufacturing efficiency. Among the DED processes, Laser Metal Deposition with powder and wire repair will be investigated. The use of wire as filler material allows for a 100% yield, in favour of responsible use of the material and energy required to melt it, as well as enabling ease of storage and overcoming the safety and health issues associated with powder. As regards Cold Spray (CS), it is a solid state deposition process where the adhesion of the powder is obtained by exploiting the kinetic energy obtained by accelerating the powder flow up to supersonic speed. Cold spray allows is particularly attractive for the high deposition rate, the lack of dimensional limits and the high deposition efficiency (up to 99%). With ductility as unique property requested to the materials, cold spray can be used with almost every powder\/substrate combination, making possible upgrading of repaired parts and it is attractive also for in-situ repairs.<br><\/li>\n\n\n\n<li>WAAM will be applied for repairing structural elements made lo lightweight alloys, selected from made-in-Italy top-notch sectors, like the space one. The requirements in the space field are very stringent and even small defects\/failures that occur during the manufacturing, testing or integration of the main structural elements could lead to discarding the part with the consequences of waste of resources and investment. WAAM technology could be used to repair or reinforce the structure to recover from such defects or failures as WAAM has the great advantage of allowing material deposition while preserving shell continuity for pressure containment. This project could also help to acquire know-how on this new technology which can also pave the way, not only for the repair, but also to produce large space structures in a more innovative way and with a lower consumption of resources and lower environmental impact.<br><\/li>\n\n\n\n<li>Laser sources that take advantage of a different wavelength respect the Infrared (IR) one can reduce energy losses, increasing process efficiency. The test of advanced laser technologies, therefore, will lead to an improvement in the state of the art for processing high reflective materials, which are increasingly in demand for applications of manufacturing and repairing of automotive and aerospace parts.<br><\/li>\n\n\n\n<li>For all AM processes selected will developed specific digital process chains for the repair of components based on the adoption reverse engineering to detect and measure the defects (or wear), conventional machining technologies (chip removal) to remove the defects, additive repair end final finishing again based on machining, generating the g-code for the movement of the heads and tools.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"parent":0,"template":"","class_list":["post-3138","projects","type-projects","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>6.02 Development of additive techniques for the repair, regeneration and life extension of machinery - MICS - Made in Italy Circolare e Sostenibile<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mics.tech\/archivio\/en\/projects\/6-02-development-of-additive-techniques-for-the-repair-regeneration-and-life-extension-of-machinery\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"6.02 Development of additive techniques for the repair, regeneration and life extension of machinery - MICS - Made in Italy Circolare e Sostenibile\" \/>\n<meta property=\"og:description\" content=\"This project is based on additive manufacturing techniques for Repairing\/Remanufacturing, as opposed to recycling or reuse. 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