3D printing – TechConnect Briefs

Fabrication of a Lower Weight, All 3D Printed Graphene Supercapacitor

Yu Z., Dobbs S., Anderson K., Sun P., Zhu B., Nair A., Wu S., California State Polytechnic University, Pomona, US

Graphene is under intensive study for energy storage devices, such as batteries and supercapacitors, due to its energy density and ability to recharge. These properties make graphene well suited for electric powered UAVs with the [...]

Post-Processing Effects on 3D Dynamic Models Created from Additive Manufacturing

Fedorishin D., Stone A., Eadie N., Christie L., Schneider P., Oh K., University at Buffalo, US

Recent advancements in 3D printing have made it a more viable option for rapid and inexpensive modeling of three dimensional (3D) dynamic systems. This shift in modeling techniques comes with inherent issues. The rough finish [...]

Tolerances Consideration in 3D Printing

Williams J., Wade A., Frostburg State University, US

The additive manufacturing laboratory at Frostburg State University utilizes three different 3D printers, studied and leaned the error in tolerance, and develop a method to approach parts with minimal tolerance error, and successfully produce the [...]

RF passive structures via low temperature direct ink writing of annealing-free composite alloy

Koo B., Dang H.W., Yang Y.-S., ETRI, KR

Recent advances in the field of additive manufacturing have utilized electronic circuits to develop high-valued functional devices. Here we present a novel approach to fabricate viscoelastic polymer-free metal ink and RF passive structures via material-extruded [...]

Mechanical Properties of 3D Printed PLA Specimens with Various Infill Shapes and Volumes

Subeshan B., Rahman M.M., Asmatulu E., Arifa K., Wichita State University, US

Traditional manufacturing methods contain removing excess materials by trimming, cutting and sanding to get the projected shapes; however, additive manufacturing contain direct manufacturing of the objects utilizing computer assisted design model by adding a layer [...]

Towards 3D Printing of Any Alloy

Eckel Z., HRL Laboratories, US

Towards 3D Printing of Any Alloy Authors: Zak C. Eckel [1], John H. Martin [1], William B. Carter [1], Tobias A. Schaedler [1], Brennan D. Yahata [1], Justin A. Mayer [1], Jacob M. Hundley [1] [...]

3D-printed Optical Devices with Refractive Index Control for Microwave Applications

Isakov D., Wu Y., Allen B., Stevens C.J., Grant P.S., University of Warwick, UK

Achieving sub-wavelength spatial variations in the relative permittivity εr and permeability μr to control the propagation of the electromagnetic radiation opens up many opportunities for the development of new devices with improved or novel functionality [...]

The impact of the “4d-Rheoprinting” additive manufacturing technique on molecular orientation and thermal properties of polymeric parts

Duhduh A., Coulter J.P., Lehigh University, US

This paper discusses a novel additive manufacturing technique that was developed in order to 3D print polymeric parts with tunable properties. This technique, known as 4D-Rheoprinting, can be applied to a number of common additive [...]

High power electron gun for metal additive manufacturing based on superconducting technology

Thangaraj J., Fermi National Accelerator Laboratory, US

E-beam additive manufacturing is a rapidly growing industry. Electron guns capable of reaching higher energies and higher average power can enable larger melt pools, higher production speed, and permit broader range of materials for metal [...]

Additive Manufacturing of Microfluidic Components via Wax Extrusion

Schneider P., Sukhotskiy V., Christie L., Siskar T., Karampelas I.H., Furlani E.P., Oh K.W., University at Buffalo's Sensors & MicroActuators Learning Lab (SMALL), US

Fused deposition modelling (FDM) has been extensively applied in the fields of rapid prototyping and 3D printing, but typically this technique has mostly been used for the fabrication of low melting point plastics. This paper [...]