High Pressure Autoclave for Additive Manufacturing

用于增材制造的高压釜

• 批准号: 426832116
• 金额: --
• 依托单位: Hochschule Kaiserslautern
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/426832116?language=en
• 关键词: Pressure; Autoclave; Additive; Manufacturing

It is intended to perform additive manufacturing of plastic parts by means of a FDM-printer (FDM - Fused Deposition Modeling) under significantly increased ambient pressure to manufacture parts with mechanical properties comparable to those of injection moulded parts. Currently, the mechanical properties of printed parts are in the region of just 50% of the injection moulded ones. This is due to a lack of shear during the print process, an insufficient preheating of already printed filaments, and of course of a substantially lower process pressure. The first two factors will be surveyed in a ZIM-project and are already part of current research. Raising the ambient pressure during 3D-printing is a completely new approach which has not been mentioned in scientific publications yet. To perform this process, a conventional FDM-printer shall be placed in an autoclave. The printing shall be done under a pressure up to 120 bar. The high pressure autoclave is necessary to develop the printing process (e.g. modifications of the 3d-printer) and the determination of the processing window.

其旨在通过FDM打印机（FDM -熔融沉积成型）在显著增加的环境压力下进行塑料部件的增材制造，以制造机械性能与注塑成型部件相当的部件。目前，打印部件的机械性能仅为注塑部件的50%。这是由于在印刷过程中缺乏剪切力、已经印刷的长丝的预热不足以及当然是由于显著较低的工艺压力。前两个因素将在ZIM项目中进行调查，并且已经是当前研究的一部分。在3D打印过程中提高环境压力是一种全新的方法，尚未在科学出版物中提及。为了执行该过程，应将常规FDM打印机放置在高压灭菌器中。印刷应在最高120 bar的压力下进行。高压灭菌器对于开发打印过程（例如3D打印机的修改）和确定处理窗口是必要的。