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

用于金属结构喷墨先进增材制造的高性能绿色粘合剂（续）

• 批准号: 533892-2018
• 负责人: Tavares, JasonRobert
• 金额: $ 0.44万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=666586
• 关键词: performance; green; binders; ink; jetting

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.

粘合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印刷到金属粉末床上，使该层固化并添加**后续层。 3D 零件形成后，将其放入高温烘箱中以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变体，可以非常快速地制造 3D 金属结构（比竞争对手快 500 倍），但它面临着与所用粘合剂有关的问题。具体来说，粘合剂是不可再生的，并且在烧掉后会对环境和最终产品质量产生有害的影响。 Sautech 与蒙特利尔理工学院合作，通过 Engage 资助进行了合作研究。在此期间，提交了 CRD 拨款**申请（正在审核中）以及匹配的 Prima 申请（已授予）。 Engage**Plus 赠款旨在继续在 Engage 赠款期间发起的开发工作，同时我们等待**长期支持（以 CRD 赠款的形式）的开始。具体来说，本项目将重点关注**初步研究期间确定的两种候选材料（液体粘合剂和粉末粘合剂），旨在解决**CRD 拨款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，以防止打印头堵塞问题以及**粘合剂成分如何影响打印组件的机械性能。此外，还将评估粉末粘合剂系统吸湿**的影响，以制定绿色打印**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**制造领域的领导者，使 Sautech 能够在这个不断发展的领域进行创新并保持竞争力。