Low-cost Spatial Beam Combination enabling UV Laser Diode Arrays for Stereolithography

增材层制造（ALM）彻底改变了航空航天、汽车和医疗设备等行业精密部件和先进蜂窝和微晶格材料的近净形状制造。激光是ALM机器的主要部件和费用，但尽管成本很高（50英镑至2.5万英镑），但当前激光源的成本和性能，特别是立体光刻的成本和性能导致制造成本仅支持原型。应用材料技术公司和Euriscus有限公司寻求通过一种新的立体光刻激光技术来解决这一要求，该技术在成本、功率密度、紧凑性、稳定性、开关速度、可靠性、寿命、可调性、紧凑性和电效率方面都有根本性的改进。激光立体光刻在费用、功能、性能和尺寸上的逐步变化将显著提高激光扫描速度，提高零件质量，并为引入高速光栅扫描系统带来机会，以促进ALM作为新组件和先进材料的工业生产技术。

Additive layer manufacturing (ALM) has revolutionised the near-net-shape fabrication of precision componentsand advanced cellular and microlattice materials in industries such as aerospace, automotive & medicaldevices. The laser is the primary component and expense in ALM machines but despite high costs (>£25k), thecost and performance of current laser sources particularly for stereolithography result in manufacturingcosts only supporting prototyping. Applied Materials Technology and Euriscus Ltd seek to address thisrequirement through a novel enabling laser technology for stereolithography with a radical improvements tothe cost, power density, compactness, stability, switching speed, reliability, longevity, tuneability, compactnessand electrical efficiency. The step change in the expense, functionality, performance and size of lasers forstereolithography will significantly improve laser scanning speeds, improve part quality and bring opportunitiesto introduce high speed raster scanning systems to promote ALM as an industrial production technology fornovel components and advanced materials.