Multi3D Manufacturing: 3D Printing of Geometrically-Complex Aerospace Structures with Embedded Electronics

2015 ◽  
Vol 2015 (DPC) ◽  
pp. 000301-000327
Author(s):  
Eric MacDonaldd ◽  
David Espalin ◽  
Slade Culp ◽  
Ryan Wicker
Keyword(s):  
3D Printing ◽  
Research Effort ◽  
El Paso ◽  
University Of Texas ◽  
Additional Manufacturing ◽  
Embedded Electronics ◽  
End Use ◽  
Material Fabrication ◽  
Manufacturing Technologies ◽  
The University

Recent efforts have concentrated on 3D printing for use not only in creating conceptual models but functional end-use products as well and the expiration of many of the additive manufacturing process patents of the 1980s has led to lower cost systems in general. The freedom of 3D printing along with the change in economics is leading to the democratization of manufacturing, where products will soon be fabricated locally and with requirements specified individually by the end user. However, currently 3D printing is limited to single material fabrication and consequently can only create mechanical structures. For additively manufactured end-use products to be relevant, additional features will need to be incorporated into the complex structures in terms of electronic, electromechanical, electromagnetic and thermal composition. Recent research has been reported of embedding electronic components and electrical interconnect into 3D printed structures either by interrupting the process or by inserting the additional content after the structure has been built. However, only until recently with an investment from the presidential initiative on manufacturing � America Makes � has there been a focused research effort on technology that produces multi-functionality with enhanced 3D printing, where additional manufacturing technologies are leveraged. This presentation will describe the development and status of the Multi3D Manufacturing System underway at the University of Texas at El Paso.

3D Printing of High Voltage Printed Wiring Boards

2016 ◽  
Vol 2016 (DPC) ◽  
pp. 000542-000565
Author(s):  
Eric MacDonald ◽  
Ryan Wicker ◽  
David Espalin ◽  
Andy Kwas ◽  
Peter Ruby Craig Kief
Keyword(s):  
3D Printing ◽  
Attitude Control ◽  
Conceptual Models ◽  
Low Cost ◽  
El Paso ◽  
Pulsed Plasma ◽  
University Of Texas ◽  
Supply Chain Logistics ◽  
End Use ◽  
Materials Used

In the last decade, research has focused on 3D printing for not only creating conceptual models but functional end-use products as well. As patents for 3D printing expire, new low cost desktop systems are being adopted more widely. This trend is leading to products being fabricated locally and improving supply chain logistics. However, currently low cost 3D printing is limited in the number of materials used simultaneously in fabrication and consequently is confined to fabricating enclosures and conceptual models. For additively manufactured end-use products to be useful, supplementary features and functionalities will need to be incorporated in to the final structures in terms of electronic, electromechanical, electromagnetic, thermodynamic, and optical content. The University of Texas at El Paso has recently been reporting on embedding electronic components and electrical interconnect into 3D printed structures either by interrupting the process or by inserting the additional content after the structure has been built. However, only until recently and with an investment from the presidential initiative on Additive Manufacturing “America Makes” has there been a concentrated research focus on developing technology that produces multi-functionality. This presentation will describe a project in which copper wires were used to supply a short burst of energy at high voltages in order to activate electro-propulsion. Pulsed Plasma Thursters provided by Busek were demonstrated where one joule of energy was supplied at 2000 volts in order to ablate the thruster in a vacuum and provide precise micro-newton-levels of force - as required for attitude control in small and nano satellites.

scholarly journals Editorial

2013 ◽  
Vol 55 (Supl.4) ◽  
pp. 447
Author(s):  
Xóchitl Castañeda
Keyword(s):  
El Paso ◽  
The United States ◽  
University Of California ◽  
National Council ◽  
Special Edition ◽  
Editorial Committee ◽  
University Of Texas ◽  
Health Initiative ◽  
The University ◽  
Migration And Health

On behalf of the editorial committee of this special edition of the Migration and Health Research Program (Programa de Investigación en Migración y Salud or PIMSA, for its Spanish acronym), the Mexico´s Ministry of Health (SSa), the National Council of Science and Technology of Mexico (Conacyt), the Health Initiative of the Americas (HIA) at the School of Public Health of the University of California at Berkeley, and The University of Texas at El Paso, we are pleased to introduce this special publication on migration and health between Mexico and the United States...

Peer Leader Essays from the Desert Southwest: The Practice of Leading Learning

2021 ◽  
Vol 1 (1) ◽  
pp. 68-91
Author(s):  
Keyword(s):  
El Paso ◽  
Faculty Members ◽  
Peer Leaders ◽  
Permian Basin ◽  
University Of Texas ◽  
Desert Southwest ◽  
The University ◽  
Personal Advice ◽  
Peer Leader

At semester’s end at the University of Texas at El Paso and at the University of Texas of the Permian Basin, faculty members directing the PLTL Programs invite Peer Leaders to reflect on their experience, to describe their challenges, and to offer their personal advice. For the benefit of future Peer Leaders, here are their stories, reflections, observations, and advice about leadership and the practice of leading.

Criteria for Opening Expedited Bonded Concrete Overlays to Traffic

1997 ◽  
Vol 1574 (1) ◽  
pp. 103-108 ◽  
Author(s):  
N. J. Delatte ◽  
D. W. Fowler ◽  
B. F. McCullough
Keyword(s):  
El Paso ◽  
Test Strip ◽  
Mix Design ◽  
Traffic Loading ◽  
University Of Texas ◽  
Concrete Overlays ◽  
Texas Department ◽  
Bonded Concrete Overlay ◽  
Transportation Research ◽  
The University

For rehabilitation of concrete pavements, resurfacing with a bonded concrete overlay (BCO) may provide significantly longer life and reduced maintenance costs. Two important issues to consider in rehabilitation are bonding and rapid reopening of resurfaced sections. The purpose of accelerated or expedited concrete paving is to limit the duration of lane closure and inconvenience to the public. Expedited BCOs offer an economical method for substantially extending rigid pavement life. Research for expedited BCOs in El Paso and Fort Worth, Texas, has been carried out for the Texas Department of Transportation by the Center for Transportation Research at the University of Texas. Results of previous expedited BCO construction are reviewed. Laboratory testing for this project included a high-early-strength mix design, bond development of that mix design, and early-age fatigue strength of half-scale BCO models. A 122-m-long test strip was cast with eight different expedited BCO designs, and accelerated traffic loading was imposed at 12 hr. Recommendations are made for construction and quality control of BCOs for early opening to traffic.

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