The Use of Additive Manufactured Plastic in Small-Scale Poppet Valves and Pressure Vessels

• DOI: 10.1115/fpmc2022-88614
• Publication Date: 2022-11-16T20:29:36Z
• Authors: Brendan Deibert; Sophia Scott; Allan Dolovich; Travis Wiens
• Keywords: 3d printed; Acrylonitrile butadiene styrene; Stereolithography

Abstract Small-scale (< 100 W), low-pressure (4 MPa), low-cost hydraulic components, such as pumps and cylinders, have recently become more available. These components potential uses in demanding applications a pump-controlled electrohydrostatic actuators (EHA)s. This is limited by the fact that unbalanced flows of single-rod cylinder require valve to reconcile imbalance, which commercially unavailable this size price range. We hypothesized it would be feasible produce component using additive manufactured (3D printed) plastic. Such system relatively low cost with high specific power, could hand tools, prosthetics, robotics, more. paper focuses on some challenges use 3D printed plastic for small-scale poppet valves pressure vessels. The objectives research include investigations sealing performance mechanical strength Experimental results included reveal effects surface finish seat geometry performance. influences print process, material, orientation vessel are examined can inform casing design considerations. Mechanical tensile testing fused deposition modelling (FDM) polyethylene terephthalate glycol (PETG) stereolithography (SLA) acrylonitrile butadiene styrene (ABS)-like test specimens provided insight corresponding burst material process. work presented advances state-of-the-art construction components.