Development of a Multi-Material Selective Laser Sintering Process

传统的选择性激光烧结（SLS）固体自由曲面制造技术是基于烧结过程中只有一种粉末。该奖项资助了一个工业/大学合作研究项目，以开发一种多材料SLS，可以制造由多种材料组成的零件。该研究项目包括：(1)设计和开发多材料选择性激光烧结机，该激光烧结机能够制造含有材料梯度的部件；(2)具有形状优化的高刚度密度比部件和具有混合界面的金属陶瓷部件的制造和测试。最终目标是开发一台原型机，以进一步了解基于多材料的SLS的粉末输送物理原理。该技术有潜力制造出许多独特的部件，其中包含改进的刚度-密度比或复杂的金属-陶瓷部件。该技术的优点包括大大缩短了制造时间和成本，并且能够在一次操作中实现多种材料组件的制造。该项目将与工业界合作，以确定实施的可量化需求。

9622287 Beaman The traditional Selective Laser Sintering (SLS) solid freeform fabrication technology is based on only one powder in the sintering process. This award funds a collaborative industry/university research project to develop a multi-material SLS which can fabricate parts composed of multiple materials. The research project consists of (1) design and development of a multi-material selective laser sintering machine capable of fabricating components containing material gradients; and (2) fabrication and testing of high stiffness-to-density ration components possessing shape optimization and metal-ceramic components possessing blended interfaces. The ultimate goal is to develop a prototype machine for further understanding of the physical principles of powder delivery for multi-materials based SLS. The technique has the potential to allow the creation of many unique components containing improved stiffness-to-density ratios or the creation of complex metal-ceramic components. The benefits of this technology include greatly reduced fabrication time and cost, and the capability to achieve in making multi-materials component in one operation. The project will be in partnership with industry to identify quantifiable requirements for implementation.