{"id":196309,"date":"2026-01-23T00:00:00","date_gmt":"2026-01-23T00:00:00","guid":{"rendered":"https:\/\/facfox.com\/news\/obayashi-corporation-advances-waam-for-architectural-possibilities-additive-manufacturing\/"},"modified":"2026-01-23T00:00:00","modified_gmt":"2026-01-23T00:00:00","slug":"obayashi-corporation-advances-waam-for-architectural-possibilities-additive-manufacturing","status":"publish","type":"post","link":"https:\/\/facfox.com\/news\/obayashi-corporation-advances-waam-for-architectural-possibilities-additive-manufacturing\/","title":{"rendered":"Obayashi Corporation advances WAAM for architectural possibilities Additive Manufacturing"},"content":{"rendered":"<p><span style=\"font-weight: 400\">Obayashi Corporation, one of Japan\u2019s leading construction companies<\/span><span style=\"font-weight: 400\">, has further underlined its reputation as a pioneer in the construction and <a href=\"https:\/\/facfox.com\/news\/topics\/architecture\" target=\"_blank\">architecture<\/a> space, with the installation of the three-meter high metal 3D printed <\/span><span style=\"font-weight: 400\">\u201cthe br\u00e6nch\u201d at its Technology Research Institute in Kiyose, Tokyo.<\/span><\/p>\n<p><span style=\"font-weight: 400\">A portmanteau of branch and bench, the br\u00e6nch is a continuation of the company\u2019s quest to advance AM at construction scale. It follows <\/span><span style=\"font-weight: 400\">its pioneering \u201c3dpod\u201d in 2023, claimed to be Japan\u2019s first e<a href=\"https:\/\/facfox.com\/news\/topics\/art\" target=\"_blank\">art<\/a>hquake-resistant 3D printed building<\/span><span style=\"font-weight: 400\">, and which was made with cement-based materials.<\/span><\/p>\n<p><span style=\"font-weight: 400\">The <\/span><span style=\"font-weight: 400\">br\u00e6nch was delivered by a cross-disciplinary team with the aim of developing in-house expertise in Wire Arc Additive Manufacturing (WAAM). The process offers plenty of promise for the <a href=\"https:\/\/facfox.com\/news\/topics\/architecture\" target=\"_blank\">architecture<\/a>, engineering, and construction (AEC) sector thanks to its greater deposition rates, lower material costs, and compatibility with large structural components.<\/span><\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"\/wp-content\/uploads\/2026\/01\/452572226133415883.jpg\"><\/p>\n<p><span style=\"font-weight: 400\">Until now, WAAM\u2019s <a href=\"https:\/\/facfox.com\/news\/topics\/insights\/applications\" target=\"_blank\">application<\/a> to construction\u2011grade carbon steel has been complicated \u2013 slag accumulation and print\u2011accuracy limitations have meant the process has focused more on non-ferrous metals. To tackle the associated issues, Obayashi developed a proprietary metal 3D printer that optimizes material combinations and welding parameters to eliminate slag formation and ensure stable, high\u2011precision deposition.<\/span><\/p>\n<p><span style=\"font-weight: 400\">The result was structural members with high strength and excellent surface integrity, validated through extensive <a href=\"https:\/\/facfox.com\/news\/topics\/mechanics\" target=\"_blank\">mechanic<\/a>al testing.<\/span><\/p>\n<div style=\"background-color: #eaeaea7a;padding: 15px 30px;align-items: center;border-radius: 4px;box-shadow: -1px 4px 20px 0px #dedede;margin-top: 1em;margin-bottom: 1em\">\n<div style=\"flex: 1;padding-right: 30px\">\n<h4 style=\"margin-bottom: 14px\">Manufacturing on Demand<\/h4>\n<div>Realize your creation with full capabilities, expand your business from prototyping to mass production.<\/div>\n<\/div>\n<p><a href=\"https:\/\/facfox.com\" target=\"_self\" rel=\"noopener noreferrer\" style=\"background-color: #0baee8;color: white;padding: 10px 20px;border-radius: 4px\"><i aria-hidden=\"true\" class=\"fa-fw auxicon auxicon-cloud-upload\"><\/i> Get Quote<\/a><\/div>\n<p><span style=\"font-weight: 400\">The next step was to apply WAAM capabilities to expressive architectural form. A dedicated semi-automated design system was developed by Obayashi, that connects thousands of potential points in a design space to generate a network of printable paths that satisfy WAAM constraints, such as maximum overhang angle and minimum printable dimensions.<\/span><\/p>\n<p><span style=\"font-weight: 400\">The system then performs structural analysis to optimize load distribution by eliminating inactive members. This gives a form that\u2019s structurally coherent and digitally manufacturable.<\/span><\/p>\n<p><span style=\"font-weight: 400\">The br\u00e6nch\u2019s structure was divided into 30 unique components, each printed individually using WAAM and hollow tubular steel elements to maximize strength\u2011to\u2011weight ratio while minimizing material use. The pieces were welded together on-site \u2013 augmented\u2011reality guidance helped achieve precise alignment of each geometry.<\/span><\/p>\n<\/p>\n<p><span style=\"font-weight: 400\">The top of the steel structure carries additively manufactured decorative parasols made from recycled polycarbonate, and produced by Tokyo-based firm DigitalArchi via robotic arm deposition (<a href=\"https:\/\/facfox.com\/service\/fdm-3d-printing-service\" target=\"_blank\">FDM<\/a>).<\/span><\/p>\n<\/p>\n<blockquote style=\"font-size: 16px;border-left: 4px solid #cdcdcd;border-radius: 4px;background-color: #f9f9f9;font-weight: 500;color: dimgrey\">\n<h5 style=\"margin-bottom: 6px\">You might also like:<\/h5>\n<p><a href=\"https:\/\/www.voxelmatters.com\/iit-bombay-inaugurates-3d-printed-concrete-security-cabin\/\" target=\"_blank\">IIT Bombay inaugurates 3D printed concrete security cabin: <\/a>\u201cThis innovative cabin, designed and fabricated entirely using 3D concrete printing technology, demonstrates the Institute\u2019s commitment to leveraging cutting-edge research for real-world infrastructure solutions. The project showcases the integration of digital fabrication, sustainable materials, and automated construction methods, enabling rapid, cost-effective, and environmentally-conscious building solutions,\u201d said Prof. Shireesh Kedare, Director of IIT Bombay.<\/p><\/blockquote>\n<p style=\"font-size: 14px;color: grey\">* This article is reprinted from <a href=\"https:\/\/www.voxelmatters.com\/obayashi-corporation-advances-waam-for-architectural-possibilities\/\" target=\"_blank\">3D Printing Media Network<\/a>. If you are involved in infringement, please contact us to delete it.<\/p>\n<p><i class=\"far fa-fw fa-user\"><\/i> Author:&nbsp;Joseph Caron-Dawe<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Obayashi Corporation, one of Japan\u2019s leading construction companies, has further underlined its reputation as a pioneer in the construction and architecture space, with the installation of the three-meter high metal 3D printed \u201cthe br\u00e6nch\u201d at its Technology Research Institute in Kiyose, Tokyo.<\/p>\n","protected":false},"author":3,"featured_media":196311,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"fifu_image_url":"https:\/\/facfox.com\/wp-content\/uploads\/2026\/01\/452572226133415883.jpg","fifu_image_alt":"","footnotes":""},"categories":[204],"tags":[5473],"class_list":["post-196309","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-architecture","tag-construction-3d-printingjapanmetal-additive-manufacturing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - 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