High Pressure Autoclave for Additive Manufacturing

它旨在通过FDM打印机（FDM -熔融沉积建模）在显著增加的环境压力下进行塑料零件的增材制造，以制造具有与注塑零件相当的机械性能的零件。目前，打印件的机械性能仅为注塑件的50%。这是由于在印刷过程中缺乏剪切，已经印刷的细丝预热不足，当然还有较低的工艺压力。前两个因素将在一个zimm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到。要执行此过程，传统的fdm打印机应放在高压灭菌器中。印刷应在高达120巴的压力下进行。高压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。

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.