ABSTRACT

Multi-material additive manufacturing provides a new route for fabricating components with tailored physical properties. Laser-based powder bed fusion (L-PBF), also known as selective laser melting, is a powder bed-based additive manufacturing technology. This technology affords the advantage of manufacturing metallic and non-metallic materials with high geometrical resolution. An emerging field relevant to the foregoing is multi-material L-PBF. This paper reviews the latest progress in this field including multiple material powder deposition mechanisms, molten pool behaviour, process characteristics of printing metal–metal, metal–ceramic, and metal–polymer multiple material components, and potential applications. Finally, scientific and technological challenges are presented.

摘要

多材料增材制造为制造具有定制物理特性的组件提供了一条新途径。基于激光的粉末床熔化（L-PBF），也称为选择性激光熔化，是基于粉末床的增材制造技术。该技术具有制造具有高几何分辨率的金属和非金属材料的优势。与前述相关的新兴领域是多材料L-PBF。本文回顾了该领域的最新进展，包括多种材料粉末沉积机理，熔池行为，印刷金属-金属，金属-陶瓷和金属-聚合物多种材料组分的工艺特性以及潜在的应用。最后，提出了科学技术挑战。