{"id":10992,"date":"2014-02-07T16:07:56","date_gmt":"2014-02-07T16:07:56","guid":{"rendered":"https:\/\/staging.asminternational.org\/hts-new\/aerospace-sustainability-study-of-industrial-3d-printing\/"},"modified":"2023-02-23T22:43:06","modified_gmt":"2023-02-23T22:43:06","slug":"aerospace-sustainability-study-of-industrial-3d-printing","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/hts\/aerospace-sustainability-study-of-industrial-3d-printing\/","title":{"rendered":"Aerospace sustainability study of industrial 3D printing"},"content":{"rendered":"<p>\n\tEOS, Krailling, Germany, collaborated with Airbus Group Innovations (previously EADS Innovation Works), of Filton, Bristol, to complete an environmental lifecycle comparison of two key production technologies, rapid investment casting and direct metal laser sintering (DMLS).<\/p>\n<p>\n\tThe Airbus Group Innovations-EOS eco-assessment, applied to an Airbus A320 nacelle hinge bracket (a highly standardized part), strove to include detailed aspects of the overall lifecycle: from the supplier of the raw powder metal, to the equipment manufacturer (EOS), and to the end-user (Airbus Group Innovations). Adapted from Airbus&#8217; streamlined lifecycle assessment (SLCA) and ISO 14040 series requirements data, the testing will serve as the basis for continued &#8220;Cradle-to-Cradle&#8221; study into other aerospace parts, processes and end-of-life strategies.<\/p>\n<p>\n\t&#8220;We worked in a bold, new collaboration with Airbus Group Innovations on integrating business and ecological sustainability from sourcing through to product development,&#8221; said Nicola Knoch, environmental and sustainability consultant to EOS. &#8220;There is now a valuable, holistic baseline established on our technology regarding the measurable costs, benefits and impacts of DMLS. This sets the groundwork for future technology developments in additive manufacturing and further studies.&#8221;<\/p>\n<p>\n\tAs a first step, the SLCA was conducted on a generic bracket benchmarking the DMLS process with a conventional casting process used as the baseline. Comparing the lifecycle of a steel bracket (casting process) with the lifecycle of a design-optimized titanium bracket (DMLS):<\/p>\n<ul>\n<li>\n\t\tThe use phase has by far the biggest impact in terms of energy consumption and CO<sub>2<\/sub> emissions over the whole lifecycle of the bracket.<\/li>\n<li>\n\t\tCO<sub>2<\/sub> emissions over the whole lifecycle of the nacelle hinges were reduced by nearly 40% via weight saving that resulted from an optimized geometry, which is enabled by the design freedom offered by the DMLS process and the use of titanium.<\/li>\n<li>\n\t\tMost significantly, using DMLS to build the hinge may reduce the weight per plane by 10 kg, a noteworthy saving when looking at industry buy-to-fly ratios.<\/li>\n<\/ul>\n<p>\n\tThe second phase of the analysis focused on the manufacturing process for the design-optimized bracket using titanium as an ideal, common material\u2014and, this time, benchmarking the manufacturing process of investment casting against that of DMLS via the EOSINT M 280 system:<\/p>\n<ul>\n<li>\n\t\tThe total energy consumption for creating the initial raw powder metal, then producing the bracket in DMLS, was slightly smaller than the equivalent cast process steps (with the higher energy use of DMLS limited to the melt and chill cycle of its manufacturing profile and offset at the same time by a significantly reduced build time). Casting in this comparison was burdened with the furnace operation of burning an SLA (stereolithography) epoxy model, which uses considerable energy and generates greenhouse gases.<\/li>\n<li>\n\t\tThe DMLS process itself used only the material actually needed to make the part\u2014thereby eliminating waste from secondary machining and reducing consumption of titanium by 25% over the cast application.<\/li>\n<\/ul>\n<p>\n\t&nbsp;<\/p>\n<p>\n\t&#8220;DMLS has demonstrated a number of benefits, as it can support the optimization of design and enable subsequent manufacture in low-volume production,&#8221; said Jon Meyer, Additive Layer Manufacturing Research Team Leader, in his final report. &#8220;In general, the joint study revealed that DMLS has the potential to build light, sustainable parts with due regard for the company&#8217;s CO<sub>2<\/sub> footprint.&#8221;<\/p>\n<p>\n\tMore information:<br \/>\n\t<a href=\"http:\/\/www.eos.info\/press\/customer_case_studies\/eads%20or%20http:\/tinyurl.com\/l2hsgl3.\" target=\"_blank\" rel=\"noopener\">Airbus Group Innovations-EOS study<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>EOS collaborated with Airbus Group Innovations to complete an environmental lifecycle comparison of two key production technologies, rapid investment casting and DMLS.<\/p>\n","protected":false},"author":63103,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[444,439,445,440,441,1],"tags":[],"class_list":["post-10992","post","type-post","status-publish","format-standard","hentry","category-aerospace-and-defense","category-general","category-materials-testing-and-evaluation","category-news","category-news-articles","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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