对于定向能源沉积（DED）3D打印空间来说，本周是一个令人兴奋的一个，有两个来自系统制造商的新公告WAAM3DandSciaky。
Cranfield Universityspin-out WAAM3D has launched an all-new large-format 3D printer operating on the firm’s Wire Arc Additive Manufacturing (WAAM) technology. NamedRoboWAAM, the metal printer sports a huge build volume of 2 x 2 x 2m and is packed full of new sensing hardware to serve customers in aerospace, defense, energy, and more.
另一方面，Sciaky的专有电子束添加剂制造（EBAM）工艺已设法超过40磅以上的沉积率。（每小时18.14公斤）使用钛。根据该公司的说法，这使其成为世界上最快的工业金属3D打印过程。
Multi-meter printing with RoboWAAM
Equipped with its own robotic arm, the RoboWAAM is designed to be a turnkey metal 3D printing system capable of processing “virtually any material” available in wire form. It’s suitable for fabricating both new components and repairs on existing metal parts.
Included in the list of novel hardware additions is ShapeTech, a new interferometric sensor technology that extracts the layer height values of every point in the part as it’s being printed. This eliminates the need for any additional laser scans or tedious touch-probe quality checks once the build is complete.
还有一个新的双点温度测量功能，可以控制沉积打印参数，并检查参数的原位可靠性。现在以电子方式进行电线定位，以实现出色的过程稳定性。
On the safety side of things, RoboWAAM features a dedicated Fume Management System for containment, filtration, and treatment. The machine is also fully shielded for safely processing reactive materials with automatic purging, atmosphere maintenance, and evacuation cycles.
WAAM3D has integrated a process camera for remote melt-pool monitoring, as well as CCTV for supervision purposes. The machine has a large material spool capacity of 70kg.
Robowaam还配备了该公司的内部软件套件，包括四个程序。这包括高级工具路径计划者Waamplanner；Waamkeys，消除缺陷并自动计算打印参数；Waamsim，用于打印环境可视化的仿真程序；以及Waamctrl，具有运营商仪表板，数字双胞胎功能和用于构建记录的数据库的综合操作系统。
Sciaky的沉积记录
Sciaky’s 40lbs. per hour EBAM deposition record was set by theSaintExupéry技术研究所（IRT），法国，在制作航空金属高级材料（MAMA）项目时。妈妈于2019年推出，目的是通过模具锻造和金属3D打印来开发新的钛飞机组件生产过程。
作为妈妈项目的一部分，迄今为止，研究人员使用EBAM在三种不同的应用中存入了150公斤钛。制造商AirbusandAubert & Duval一直是这一点的关键因素。还计划了2022年及以后的其他项目。
“Sciaky is excited about EBAM’s new deposition rate milestone,” said Scott Phillips, President and CEO of Sciaky. “We are committed to discovering new applications for EBAM that will help manufacturers save significant time and money on part production, as well as improve part quality.”
Although usually relatively quiet, the DED 3D printing sector can yield some very interesting developments. Earlier this year, researchers fromNOVA University Lisbon开发了一种新形式专为小零件设计的WAAMand fine feature details. Named µ-WAAM, the high-precision 3D printing technology utilizes metal wire materials with a diameter of just 250µm.
别处，MX3D, a developer of wire-based metal DED technology, recently unveiled its partly3D printed ‘WAAM Clamp’。混合工业部分是管道夹的一个示例，该夹具用于密封化学和油和天然气部门的高压泄漏。
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Featured image shows WAAM3D’s RoboWAAM 3D printer. Photo via WAAM3D.
