用于测量熔丝制造工艺中部件附着力的装置。

Device for measuring part adhesion in FFF process.

作者信息

Laumann Daniel, Spiehl Dieter, Dörsam Edgar

机构信息

Technical University of Darmstadt, Department of Mechanical Engineering, Institute for Printing Science Technology, Magdalenenstraße 2, 64289 Darmstadt, Germany.

出版信息

HardwareX. 2022 Jan 7;11:e00258. doi: 10.1016/j.ohx.2022.e00258. eCollection 2022 Apr.

DOI:10.1016/j.ohx.2022.e00258

PMID:35509946

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9058659/

Abstract

The adhesion of parts to the build surface plays a central role in the Fused Filament Fabrication (FFF) process. Without sufficient adhesion, the part will deform (so called warping) due to thermal shrinkage, so that no defined geometries can be created. Nevertheless, there is no established method to measure the adhesion of printed parts and therefore it is not possible to targeted improve it. This article presents a measurement method based on the DIN EN 28510-1 standard and a corresponding test device which makes it possible to identify the optimum build surface for a filament and also to improve the process parameters in a targeted manner. The test device combines a FFF printer with a measuring unit so that all common filaments can be tested close to the process up to a processing temperature of 400 °C in the nozzle and around 150 °C on the build platform. The test device uses only open-source parts and software and costs about 1700€.

摘要

在熔融长丝制造（FFF）过程中，部件与成型表面的附着力起着核心作用。如果没有足够的附着力，部件会因热收缩而变形（即所谓的翘曲），从而无法创建出确定的几何形状。然而，目前尚无既定方法来测量打印部件的附着力，因此无法有针对性地对其进行改进。本文介绍了一种基于DIN EN 28510-1标准的测量方法以及相应的测试装置，该装置能够确定适合某种长丝的最佳成型表面，还能有针对性地改进工艺参数。该测试装置将一台FFF打印机与一个测量单元相结合，这样在接近实际工艺的条件下，能够对所有常见长丝进行测试，喷嘴处的加工温度可达400°C，成型平台上的温度约为150°C。该测试装置仅使用开源部件和软件，成本约为1700欧元。