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Special Issue “Laser Powder Bed Fusion, Direct Energy Deposition and Hybrid Manufacturing of Metals and Alloys”

Description: Article describes hybrid additive manufacturing processes involve the use of different manufacturing techniques to fabricate net shape or near-net shape parts, with enhanced capabilities of heat dissipation, such as those needed in conformal molding, or requiring internal cooling systems, such as, for example, those seen in turbine blades, and for developing other components demanding free form fabrication methods. The combination of these AM processes with material removal processes, such as m… more
Date: October 8, 2022
Creator: Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Anthropo-fidelic behavior of elastic-plastic lattice structures

Description: Article discusses how vat photopolymerization is used to construct triply periodic minimal surfaces (TPMS) to match human heel pad stiffness. This work substantiates the suitability of latticed models to reach the stiffness of the heel pad chambers.
Date: February 24, 2023
Creator: Haney, Christopher W. & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Study of the fabrication of AISI 316L microneedle arrays

Description: Article describes a study in which a micro milling process was used to manufacture AISI 316L stainless steel needles arrays with a conical geometry (i.e., a base diameter and height of 1 mm by 1 mm, respectively), and an analysis of tool wear on ball nose micro end milling tools with a diameter of ~200 μm was performed to evaluate the use of lubricant in the manufacture of those conical surfaces.
Date: August 3, 2018
Creator: García-López, Erika; Siller Carrillo, Héctor Rafael & Rodríguez, Ciro A.
Partner: UNT College of Engineering
open access

Xurography as a Rapid Fabrication Alternative for Point-of-Care Devices: Assessment of Passive Micromixers

Description: This article evaluates the viability of xurography as a rapid fabrication tool for the development of ultra-low cost microfluidic technology for extreme Point-of-Care (POC) micromixing devices.
Date: May 16, 2016
Creator: Martínez-López, J. Israel; Mojica, Mauricio; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Adaptive Control Optimization of Cutting Parameters for High Quality Machining Operations based on Neural Networks and Search Algorithms

Description: This book chapter presents an Adaptive Control with Optimization (ACO) system for optimising a multi-objective function based on material removal rate, quality loss function related to surface roughness, and cutting-tool life subjected to surface roughness specifications constraint.
Date: October 1, 2008
Creator: Abellan, J. V.; Romero, F.; Siller Carrillo, Héctor Rafael; Estruch, A. & Vila, C.
Partner: UNT College of Engineering
open access

Optical method for distance and displacement measurements of the probe-sample separation in a scanning near-field optical microscope

Description: This article presents an alternative optical method to determine the probe-sample separation distance in a scanning near-field optical microscope.
Date: April 14, 2016
Creator: Santamaria, L.; Garcia-Ortiz, C. E.; Siller Carrillo, Héctor Rafael; Cortes, R. & Coello, V.
Partner: UNT College of Engineering
open access

Extended CT Void Analysis in FDM Additive Manufacturing Components

Description: This article provides an extended analysis of void shape by means of X-ray computed tomography (CT) applied to fused deposition modeling (FDM) samples. Furthermore, a relation between the tensile mechanical properties and digital void measurements is established. The results lead to the formulation of a novel criterion that predicts the mechanical behavior of AM components.
Date: August 30, 2020
Creator: Hernandez-Contreras, Adriana; Ruiz-Huerta, Leopoldo; Caballero-Ruiz, Alberto; Moock, Verena & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Stress-Softening and Residual Strain Effects in Suture Materials

Description: This article focuses on the formulation of a constitutive equation to predict Mullins and residual strain effects of buna-N, silicone, and neoprene rubber strings subjected to small transverse vibrations.
Date: September 4, 2013
Creator: Elías-Zúñiga, Alex; Baylón, Karen; Martínez-Romero, Oscar; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Experimental Determination of Residual Stresses Generated by Single Point Incremental Forming of AlSi10Mg Sheets Produced Using SLM Additive Manufacturing Process

Description: This article focuses on investigating the residual stress values associated with a part fabricated by Selective Laser Melting technology (SLM) when this is subjected further to forces on single point incremental forming (SPIF) operation of variable wall angle.
Date: December 13, 2018
Creator: López, Cecilio; Elías-Zúñiga, Alex; Jiménez, Isaac; Martínez-Romero, Oscar; Siller Carrillo, Héctor Rafael & Diabb, José
Partner: UNT College of Engineering
open access

Rapid Fabrication of Disposable Micromixing Arrays Using Xurography and Laser Ablation

Description: This article presents a novel split-and-recombine (SAR) array design adapted for interfacing standardized dispensing (handheld micropipette) and sampling (microplate reader) equipment.
Date: May 4, 2017
Creator: Martínez-López, J. Israel; Betancourt, H. A.; García-López, Erika; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

A dimensional assessment of small features and lattice structures manufactured by laser powder bed fusion

Description: This article presents a detailed investigation on the influence of building orientation and feature dimensions in laser powder bed fusion (L-PBF) parts.
Date: February 28, 2022
Creator: López-García, Carlos; García-López, Erika; Siller Carrillo, Héctor Rafael; Sandoval-Robles, Jesús A. & Rodríguez, Ciro A.
Partner: UNT College of Engineering
open access

Evaluation of Superficial and Dimensional Quality Features in Metallic Micro-Channels Manufactured by Micro-End-Milling

Description: This article focuses on a set of experiments in the micro-milling of channels made of aluminum, titanium alloys and stainless steel.
Date: April 3, 2013
Creator: Monroy-Vázquez, Karla P.; Attanasio, Aldo; Ceretti, Elisabetta; Siller Carrillo, Héctor Rafael; Hendrichs-Troeglen, Nicolás J. & Giardini, Claudio
Partner: UNT College of Engineering
open access

Study of performance of high speed turning using the volumetric dimension coefficient of resultant cutting force

Description: This article describes the experimental study of the resultant cutting force evolution of two coating carbide and a cermet inserts, during the dry turning of AISI 1045 steel with 400, 500, and 600 m/min cutting speeds.
Date: July 2013
Creator: Hernández-González, L. W.; Pérez-Rodríguez, R.; Zambrano-Robledo, P. C.; Siller Carrillo, Héctor Rafael & Toscano-Reyes, H.
Partner: UNT College of Engineering
open access

Experimental Study of Back Wall Dross and Surface Roughness in Fiber Laser Microcutting of 316L Miniature Tubes

Description: This article uses extensive experimentation to evaluate the effect of fiber laser micro-cutting parameters over average surface roughness and back wall dross in AISI 316L stainless steel mixture tubes.
Date: December 26, 2017
Creator: García-López, Erika; Medrano-Tellez, Alexis G.; Ibarra-Medina, Juansethi R.; Siller Carrillo, Héctor Rafael & Rodríguez, Ciro A.
Partner: UNT College of Engineering
open access

Surface Finish and Back-Wall Dross Behavior during the Fiber Laser Cutting of AZ31 Magnesium Alloy

Description: Study examines the effect of cutting conditions on wall surface roughness and back-wall dross by carrying out fiber laser cutting of AZ31 magnesium alloy tubes.
Date: September 24, 2018
Creator: García-López, Erika; Ibarra-Medina, Juansethi R.; Siller Carrillo, Héctor Rafael; Lammel-Lindemann, Jan A. & Rodríguez, Ciro A.
Partner: University of North Texas
open access

Parametric Modeling of Biomimetic Cortical Bone Microstructure for Additive Manufacturing

Description: This articles presents a novel algorithm for generating in-silico biomimetic models of a cortical bone microstructure towards manufacturing biomimetic bone via additive manufacturing. The software provides a tool for physicians or biomedical engineers to develop models of cortical bone that include the inherent complexity of the microstructure.
Date: March 19, 2019
Creator: Robles Linares-Alvelais, José; Ramírez-Cedillo, Erick; Siller Carrillo, Héctor Rafael; Rodríguez, Ciro A. & Martínez-López, J. Israel
Partner: UNT College of Engineering
open access

Establishing a Journey of Inclusion, Identity and Intersectionality through Guided Pathways to Enhance Latinx Success in Engineering and Computer Science

Description: Data management plan for the grant, "Establishing a Journey of Inclusion, Identity and Intersectionality through Guided Pathways to Enhance Latinx Success in Engineering and Computer Science." This project will bring together the University of North Texas (UNT) and North Central Texas College (NCTC) to decrease the time to graduation for transfer students in engineering and computer science (ECS) and better meet the needs of Latinx students. Three research questions will guide the project effor… more
Date: 2021-10-15/2024-09-30
Creator: D'Souza, Nandika Anne, 1967-; Quintanilla, John; Huffman, Debbie; Siller Carrillo, Héctor Rafael & Ro, Hyun
Partner: UNT College of Engineering
open access

Permeability Study of Austenitic Stainless Steel Surfaces Produced by Selective Laser Melting

Description: In this article, permeability properties and surface roughness of stainless steel (SS316L) surfaces were evaluated through experimentation with three different laser scanning patterns (chessboard, meander, and stripe), and different sloping angles between the fabricated surface and the laser beam incident on the process. Results showed that for each scanning pattern, the roughness decreased as the sloping angle increased consistently in all experimental trials.
Date: November 24, 2017
Creator: Segura-Cardenas, Emmanuel; Ramírez-Cedillo, Erick; Sandoval-Robles, Jesús Alejandro; Ruiz-Huerta, Leopoldo; Caballero-Ruiz, Alberto & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Process planning guidelines in selective laser melting for the manufacturing of stainless steel parts

Description: Article presents several process planning guidelines as a result of a selective laser melting (SLM) process calibration for a selected material (stainless steel 316L), with the intention of contributing in process parameters selection in net shape manufacturing.
Date: August 3, 2018
Creator: Ramírez-Cedillo, Erick; Sandoval-Robles, Jesús A.; Ruiz-Huerta, Leopoldo; Caballero-Ruiz, Alberto; Rodríguez, Ciro A. & Siller Carrillo, Héctor Rafael
Partner: UNT College of Engineering
open access

Study of PVD AlCrN Coating for Reducing Carbide Cutting Tool Deterioration in the Machining of Titanium Alloys

Description: This article studies a thin nanocomposite film made out of AlCrN (aluminum-chromium-nitrite) to show experimental work in the deposition process and its characterization.
Date: May 24, 2013
Creator: Cadena, Natalia L.; Cue-Sampedro, Rodrigo; Siller Carrillo, Héctor Rafael; Arizmendi-Morquecho, Ana M.; Rivera-Solorio, Carlos I. & Di-Nardo, Santiago
Partner: UNT College of Engineering
open access

Polymeric Materials Reinforced with Multiwall Carbon Nanotubes: A Constitutive Material Model

Description: This article discusses the modification of an existing material model to take into account softening and residual strain effects observed in polymeric materials reinforced with carbon nanotubes when subjected to loading and unloading cycles.
Date: July 16, 2013
Creator: Córdova, René K.; Elías-Zúñiga, Alex; Elizalde, Luis E.; Siller Carrillo, Héctor Rafael; Sánchez, José Antonio; Rodríguez, Ciro A. et al.
Partner: UNT College of Engineering
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