Out-of-plane geometric error prediction for additive manufacturing
Out-of-plane geometric error prediction for additive manufacturing
复制标题
增材制造的面外几何误差预测
DOI：
10.1109/coase.2015.7294216
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Qiang Huang
中科院分区：
文献类型：
--
作者：
Yuan Jin;S. Qin;Qiang Huang
增材制造 (AM) 是一种很有前途的直接制造技术，增材制造产品的几何精度对于实现增材制造的承诺至关重要。对于增材制造来说，面外或 z 方向几何误差的预测一直是一项艰巨的任务。尽管有限元法仿真已广泛应用于预测 3D 变形和扭曲，但纯粹基于此类仿真来提高零件精度仍需要大量的方法开发。我们一直在建立一种替代策略，该策略可以对特定产品和增材制造流程进行预测且透明。我们之前的工作在预测面内（x-y 平面）几何误差方面已经取得了成功的结果。在这项研究中，我们的目标是将该方法扩展到平面外几何误差预测。我们提供了一种新颖的空间偏差公式，其中面内和面外误差都置于一致的数学框架下。导出的平面外误差预测模型通过使用立体光刻工艺的实验进行了验证。
Additive Manufacturing (AM) is a promising direct manufacturing technology and geometric accuracy of AM built products is crucial to fulfill the promise of AM. The prediction of the out-of-plane or z direction geometric errors has been a daunting task for AM. Although Finite Element Method simulation has been extensively applied to predict 3D deformation and distortion, improving part accuracy purely based on such simulation still needs significant methodology development. We have been establishing an alternative strategy that can be predictive and transparent to specific products and AM processes. Successful results have been accomplished in our previous work to predict the in-plane (x-y plane) geometric errors. In this study we aim to extend the methodology to the out-of-plane geometric error prediction. We provide a novel spatial deviation formulation in which both in-plane and out-of-plane errors are placed under a consistent mathematical framework. The derived predictive model for out-of-plane errors is validated through experimentation using a stereolithography process.