SYSTEM FOR ONLINE MONITORING POWDER-BASED 3D PRINTING PROCESSES AND METHOD THEREOF

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

14/803,679

專利證號

US 10,086,559 B2

專利獲證名稱

SYSTEM FOR ONLINE MONITORING POWDER-BASED 3D PRINTING PROCESSES AND METHOD THEREOF

專利所屬機關 (申請機關)

財團法人國家實驗研究院

獲證日期

2018/10/02

技術說明

一種即時監控三維粉末成型式列印的系統及其方法，其主要是在進行電腦三維圖案之三維粉末成型式列印的逐層列印過程中，由系統提供均勻且具單一波長之光源對列印時每一層塗覆膠水前、後的模型分別進行照射，再藉由塗覆膠水前、後模型反射光所呈現的光強度資訊進行影像處理以取得即時的模型輪廓，再與電腦中的三維圖案比對後確認逐層列印時不會產生/或出現超過比例的輪廓缺陷，以達到即時監控、避免浪費時間以及耗損列印資源的技術功效。 A system for online monitoring powder-based 3D printing processes and method thereof are disclosed. A uniform light source having a single wavelength provided by the system is irradiated onto the powder layer before and after applied with glue. Intensities of such reflected images are obtained and subtracted from each other in an image process procedure. A difference obtained through the subtraction is compared with an original 3D model in a computer. If any defect is found such as being larger than a threshold value, the powder-based 3D printing processes will be terminated. Therefore, the technical effects of online printing processes monitoring, time saving and printing resources saving will be achieved.

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