A5039259767- Additive Manufacturing and 3D Printing Technologies
- Manufacturing Process and Optimization
- Additive Manufacturing Materials and Processes
- Innovations in Concrete and Construction Materials
- Advanced Sensor and Energy Harvesting Materials
- Injection Molding Process and Properties
- Interactive and Immersive Displays
- Modular Robots and Swarm Intelligence
- Bone Tissue Engineering Materials
- Ferroelectric and Piezoelectric Materials
- Antenna Design and Analysis
- Dielectric materials and actuators
- Advanced Antenna and Metasurface Technologies
- 3D IC and TSV technologies
- High Entropy Alloys Studies
- 3D Printing in Biomedical Research
- Nanomaterials and Printing Technologies
- Adhesion, Friction, and Surface Interactions
- Microwave Engineering and Waveguides
- Anatomy and Medical Technology
- Industrial Vision Systems and Defect Detection
- Metal and Thin Film Mechanics
- Robot Manipulation and Learning
- Thermography and Photoacoustic Techniques
- Advanced ceramic materials synthesis
The University of Texas at El Paso
2015-2024
W. M. Keck Foundation
2020-2022
In new product development, time to market (TTM) is critical for the success and profitability of next generation products. When these products include sophisticated electronics encased in 3D packaging with complex geometries intricate detail, TTM can be compromised - resulting lost opportunity. The use advanced printing technology enhanced component placement electrical interconnect deposition provide electronic prototypes that now rapidly fabricated comparable frames as traditional 2D...
This 38-page document is a part of Wohlers Report 2016-2022 and was created for its readers. The chronicles the history additive manufacturing (AM) 3D printing, beginning with initial commercialization stereolithography in 1987 to April 2015. Developments from 2015 through March 2016 are available complete version report. An analysis AM, earliest inventions 1960s 1990s, included final several pages this document.
Purpose The purpose of this paper is to investigate the use medical‐grade polymethylmethacrylate (PMMA) in fused deposition modeling (FDM) fabricate porous customized freeform structures for several applications including craniofacial reconstruction and orthopaedic spacers. It also aims examine effects different fabrication conditions on porosity mechanical properties PMMA samples. Design/methodology/approach building parameters procedures properly consistently extrude filament FDM 3D were...
Purpose – The purpose of this paper is to investigate a build process variation for fused deposition modeling (FDM) in which contours and rasters (also referred as internal fill patterns) are built using different layer thicknesses road widths. In particular, the examines effect on surface roughness, production times mechanical properties. Additionally, unique FDM was developed that enabled discrete multiple materials at layers regions within layers. Design/methodology/approach A...
The purpose of this paper is to evaluate the capability five desktop additive manufacturing (AM) machines based on ability produce a standard component. This work also developed model/method for evaluating and ranking AM technologies select criteria that can facilitate purchasing decisions. A part was designed printed each machine, evaluated dimensional accuracy surface finish. Additionally, were compared build time single multiple parts as well material consumption unit cost. research...
Material properties in radio frequency and microwave regimes are limited due to the lack of molecular resonances at these frequencies. Metamaterials an attractive means realize a prescribed permittivity or permeability function, but often prohibitively lossy use ine-cient metallic resonators. All-dielectric metamaterials ofier excellent potential overcome losses, they provide much weaker interaction with applied wave. Much design freedom can be realized from all-dielectric structures if...
Today, the use of material extrusion processes, like fused deposition modeling (FDM), in aerospace, biomedical science, and other industries, is gaining popularity because access to production-grade thermoplastic polymer materials. This paper focuses on how modifying process parameters such as build orientation, raster angle (RA), contour width (CW), (RW), raster-to-raster air gap (RRAG) can improve ultimate tensile strength (UTS), Young's modulus, strain. was assessed using three methods:...
Advances in the field of extrusion based 3-D printing have recently allowed incorporation embedded electronics and interconnects, order to increase functionality these structures. This paper builds on previous work area fine-pitch copper mesh wire capacitive sensors encapsulated within a printed structure. Three varieties were fabricated tested, including small sensor (320-μm width), large (2 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
This research focused on extending the applications of fused deposition modeling (FDM) by extrusion and low melting temperature metal alloys to create three-dimensional structures single-layer contacts which may prove useful for electronic interconnects. Six commercially available solder (Bi36Pb32Sn31Ag1, Bi58Sn42, Sn63Pb37, Sn50Pb50, Sn60Bi40, Sn96.5Ag3.5) were tested creation a metals (FDMm) system with special attention given Sn–Bi solders. An existing FDM 3000 was used two successfully...
Recent advances in the field of 3D printing have utilized embedded electronic interconnects order to construct advanced devices. This work builds on these and characterize arbitrarily formed capacitive sensors using fine-pitch copper mesh wires. Three varieties were fabricated tested, including a small area wire sensor (320μm width), large (2cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ), fully demonstration model. In test FDM...
2-D printed electronics have been the focus of intense research for past two decades primarily focused on implementing electrical interconnect by dispensing conductive binder-based inks. More recently, traditional processes leveraged within 3-D structures where components and are introduced during fabrication interruptions. The dielectric performance materials compares well with circuit board (PCB) dielectrics but one remaining challenge is low conductivity ink traces. degradation due to...
Abstract With recent advances of additive manufacturing technology, direct ink write (DIW) printing has allowed to incorporate multi-material various materials with freedom design and complex geometric shapes complete functional sensors in a one-step fabrication. This paper introduces the use DIW 3D polydimethylsiloxane (PDMS) barium titanate (BTO) filler as stretchable composites tunable piezoelectric properties that can be used for force applications. To improve bonding between electrodes,...
This research presents a simple method to additively manufacture Cone 5 porcelain clay ceramics by using the direct ink-write (DIW) printing technique. DIW has allowed application of extruding highly viscous ceramic materials with relatively high-quality and good mechanical properties, which additionally allows freedom design capability manufacturing complex geometrical shapes. Clay particles were mixed deionized (DI) water at different ratios, where most suitable composition for 3D was...
Fused deposition modeling (FDM) technology, one of the most commonly used by 3D printers, builds parts layer-by-layer heating and extruding thermoplastic filament. However, building failures such as nozzle clogging, substrate deformation, etc. often occur when using FDM systems. All these are unpredictable undetectable, resulting in lost time money. The present research studies a methodology to detect material status solve this crux printing sensing inner pressure change liquefied material....