arXiv:2501.14306cs.CVphysics.app-ph2025-01被引 5

用AI分析X光数据,自动预测3D打印最佳参数,准确率达99.3%。

Additive Manufacturing Processes Protocol Prediction by Artificial Intelligence using X-ray Computed Tomography data

  • 通过AI图像分割结合无损检测数据,自动优化打印参数。
  • AI模型准确率99.3%,远超传统方法的83.44%。
  • 适合需要自动化质量控制的增材制造研发人员。

增材制造(AM)零件质量取决于工艺参数,需优化以保证精度。本文提出一种无需人工干预的非迭代参数设定方法,利用人工智能(AI)实现全流程自动化,并可自主学习新数据。研究基于三种商用材料挤出(MEX)3D打印机,针对六组不同层高与喷嘴速度参数进行打印实验。创新点在于在决策阶段引入基于AI的图像分割,使用无损检测(NDT)验证的训练数据。训练后的神经网络(ANN)模型准确率达99.3%,优于现有商业阈值法的83.44%。模型整体拟合优度R为0.82,MEX工艺相对设计产生22.06%的孔隙率误差。两个经NDT数据训练的AI模型串联集成,经经典优化与力学测试验证,可有效推荐最优工艺参数。

原文摘要 · Abstract (English)

The quality of the part fabricated from the Additive Manufacturing (AM) process depends upon the process parameters used, and therefore, optimization is required for apt quality. A methodology is proposed to set these parameters non-iteratively without human intervention. It utilizes Artificial Intelligence (AI) to fully automate the process, with the capability to self-train any apt AI model by further assimilating the training data.This study includes three commercially available 3D printers for soft material printing based on the Material Extrusion (MEX) AM process. The samples are 3D printed for six different AM process parameters obtained by varying layer height and nozzle speed. The novelty part of the methodology is incorporating an AI-based image segmentation step in the decision-making stage that uses quality inspected training data from the Non-Destructive Testing (NDT) method. The performance of the trained AI model is compared with the two software tools based on the classical thresholding method. The AI-based Artificial Neural Network (ANN) model is trained from NDT-assessed and AI-segmented data to automate the selection of optimized process parameters. The AI-based model is 99.3 % accurate, while the best available commercial classical image method is 83.44 % accurate. The best value of overall R for training ANN is 0.82. The MEX process gives a 22.06 % porosity error relative to the design. The NDT-data trained two AI models integrated into a series pipeline for optimal process parameters are proposed and verified by classical optimization and mechanical testing methods.

3D打印AI质检图像分割工艺优化

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