High-performance green binders for ink-jetting advanced additive manufacturing of metallic structures (continued)

粘结剂喷射是一种先进的增材制造技术，能够3D打印金属结构。它的工作原理是将粘合剂配方打印到金属粉末床上，使该层固化并添加下一层。一旦3D零件成型，它就会被放入高温烤箱中燃烧掉粘合剂并烧结金属颗粒。Les Industries Sautech Inc.开发了一种粘合剂喷射技术，可以非常快速地制造3D金属结构（比竞争对手快500倍），但它面临着与所使用的粘合剂有关的问题。具体来说，粘合剂是不可再生的，并且在燃烧后会对环境和最终产品质量产生不利影响。Sautech与Polytechnique**Montreal合作，通过Engage资助进行合作研究。在此期间，提交了一份CRD补助金申请（正在审查中），以及一份匹配的Prima申请（已授予）。“参与+”赠款旨在继续开展“参与”赠款期间启动的开发工作，同时我们等待长期支持（以CRD赠款的形式）的开始。具体而言，本项目将重点关注最初研究中确定的两种候选药物（液体粘合剂和粉末粘合剂），旨在解决CRD资助中未计划研究的问题。通过这个Engage Plus项目，液体粘合剂的流体特性将被量化，以防止打印头堵塞的问题，以及粘合剂成分如何影响打印部件的机械性能。此外，将评估粉末粘合剂系统中吸湿性**的影响，以制定绿色印刷**部件的加工和存储窗口。该项目的完成将继续我们的努力，使加拿大成为先进增材制造的领导者，使Sautech能够在这个不断发展的领域进行创新并保持竞争力。

Binder jetting is an advanced additive manufacturing technique capable of 3D printing metallic structures. It**works by printing a binder formulation onto a bed of metal powder, allowing that layer to solidify and adding a**subsequent layer. Once the 3D part is formed, it is placed in a high-temperature oven to burn off the binder and**sinter the metal particles. Les Industries Sautech Inc. has developed a variant of binder jetting that allows for**the very rapid fabrication of 3D metallic structures (500 times faster than its competitors), but it is faced with**issues pertaining to the binders used. Specifically, the binders are non-renewable, and can have detrimental**effects on the environment and final product quality following burn-off. In collaboration with Polytechnique**Montreal, Sautech conducted collaborative research through an Engage grant. During this period, a CRD grant**application was submitted (under review), along with a matching Prima application (awarded). The Engage**Plus grant aims to pursue the developments efforts initiated during the Engage grant, while we await the**beginning of longer-term support (in the form of the CRD grant). Specifically, the present project will focus on**the 2 candidates identified during the initial study (a liquid binder and a powder binder), aiming to resolve**issues that are not projected for study in the CRD grant. Through this Engage Plus project, the fluid**characteristics of the liquid binder will be quantified to prevent the issue of printhead blockages and how**binder composition affects mechanical properties of printed components. Further, the effect of moisture uptake**in the powder binder systems will be assessed to formulate a processing and storage window for green printed**parts. The completion of this project will continue our efforts to situate Canada as a leader in advanced additive**manufacturing, allowing Sautech to innovate and stay competitive in this evolving field.