体积增材制造的实时3D测量
On-the-fly 3D metrology of volumetric additive manufacturing
摘要：
增材制造技术通过实现从设计到制造的快速周转，正在彻底改变产品开发。然而，快速成型流水线的吞吐量仍然受到打印优化的限制，需要多次迭代的制造和非原位计量。尽管需要合适的技术，但整个印刷品的稳健的原位形状测量目前还不可用于任何增材制造模式。在这里，我们通过演示完全同步的3D测量和打印来解决这个缺点。我们利用光致树脂在凝胶化过程中光散射的急剧增加，在断层扫描体积增材制造过程中对印刷品进行实时3D成像。对构建体中的光散射密度进行断层扫描成像，可生成固化物体的定量、无伪影的3D +时间模型，精确度低于打印尺寸的1%。通过将形状测量集成到打印过程中，我们的工作为具有实时缺陷检测和校正的下一代快速成型铺平了道路。
英文摘要：
Additive manufacturing techniques are revolutionizing product development by enabling fast turnaround from design to fabrication. However, the throughput of the rapid prototyping pipeline remains constrained by print optimization, requiring multiple iterations of fabrication and ex-situ metrology. Despite the need for a suitable technology, robust in-situ shape measurement of an entire print is not currently available with any additive manufacturing modality. Here, we address this shortcoming by demonstrating fully simultaneous 3D metrology and printing. We exploit the dramatic increase in light scattering by a photoresin during gelation for real-time 3D imaging of prints during tomographic volumetric additive manufacturing. Tomographic imaging of the light scattering density in the build volume yields quantitative, artifact-free 3D + time models of cured objects that are accurate to below 1% of the size of the print. By integrating shape measurement into the printing process, our work paves the way for next-generation rapid prototyping with real-time defect detection and correction.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
