Hot Isostatic Pressing of Additively Manufactured Space-Use Components in Aluminum and Titanium

Burloak Technologies是一家精密工程组件和支持服务供应商。它最近创建了一个世界领先的添加剂制造设施，专注于空间部门的零部件。在航天工业中，热等静压(HIP)是铸造和添加剂制造(AM)部件的重要后处理工序。在热等静压过程中，金属被保持在高温和高压下，以消除内部气孔并改善材料性能。航天工业目前正在使用为低性能铸件建立的相同的基本热等静压工艺和控制定义。对于高度关键和高性能的AM硬件来说，这些做法远非最佳选择。这限制了AM对航天工业可能的创新。Burloak将很快在其奥克维尔工厂完成加拿大唯一的商业HIP船的安装。该联盟提案的目标是在Burloak和McMaster之间建立合作伙伴关系，以开发“以空间为中心”的热等静压工艺规范，重点关注航天工业的两种战略合金：Al10SiMg和Ti-6Al-4V。拟议的工作将确定由上述材料添加制造的部件的最佳时间-温度-压力循环。它还将利用Burloak最先进的HIP船的气体淬火能力，开发更有效的处理方法，涉及更少的处理步骤。拟议的工作将致力于开发专门为利用AM工艺和Burloak HIP船的特定能力而设计的新型铝合金。这将允许Burloak省去几个昂贵的热处理步骤。拟议中的工作将巩固Burloak在AM航天工业中的地位。它还将填补加拿大航天零部件供应链中的一个关键缺口。目前，由于缺乏在热等静压方面的当地设施和专业知识，加拿大所有的空间部件都被运往海外进行加工。这对与空间有关的管制物品构成安全风险，并导致成本和准备时间大幅增加。因此，该提案将有助于加拿大航天工业的发展。它还将在这一关键和不断扩大的部门培训3名HQP。

Burloak Technologies is a supplier of precision engineered components and support services. It recently created a world leading additive manufacturing facility which is focused on components for the space sector. In the space industry, Hot Isostatic Pressing (HIP) is a vital post-process operation for cast and Additive Manufactured (AM) components. During HIP the metal is held at high temperatures and pressures to eliminate internal porosity and improve the material properties. The space industry is currently using the same basic HIP processes and control definitions established for low performance castings. These practices are far from optimum for highly critical and high-performance AM hardware. This limits the innovation possible with AM for the space industry. Burloak will soon complete installing Canada's only, commercial HIP vessel at its Oakville facility. The goal of this Alliance proposal is to create a partnership between Burloak and McMaster to develop "space-centric" HIP process specifications focusing on two strategic alloys for the space industry; Al10SiMg and Ti-6Al-4V. The proposed work will identify the optimal time-temperature-pressure cycles for components that are additively manufactured out of the above materials. It will also exploit the gas quenching capabilities of the state-of-the-art HIP vessel at Burloak to develop more efficient treatments that involve fewer processing steps. The proposed work will pursue the development of new Al alloys that are specifically designed to take advantage of AM processes and the specific capabilities of the Burloak HIP vessel. This would permit Burloak to eliminate several expensive heat-treatments steps. The proposed work will solidify Burloak's position in AM for the space industry. It will also fill a critical gap in Canada's space component supply chain. Presently, the absence of local facilities and expertise on HIP results in all Canadian space components being shipped overseas for processing. This poses a security risk to space-related controlled goods, as well as, resulting in a substantial increase in cost and lead times. The proposal will, therefore, aid the development of Canada's space industry. It will also train 3 HQP in this critical and expanding sector.