Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551039
Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- Modular design of the tibial insert for cruciate-retaining and posterior-stabilized total knee prosthesis(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2025-06-18) Cíntora González, Alejandra Marión; López Botello, Omar Eduardo; emipsanchez; Vázquez Lepe, Elisa Virginia; Sandoval Robles, Jesús Alejandro; School of Engineering and Sciences; Campus Monterrey; Pérez Santiago, RogelioThe increase in the prevalence of knee osteoarthritis has resulted in an increased demand for total knee arthroplasty surgeries. This has created challenges in the efficient manufacture of its components, particularly the tibial insert. The demand for different sizes and thicknesses of materials necessitates a complex system for managing inventory, resulting in an inefficient allocation of resources. Confronted with this challenge, the conception of a modular tibial insert configuration that is compatible with cruciate-retaining and posterior- stabilized knee prostheses was proposed. This initiative aimed to reduce the inventory of components, enhance the efficiency of the manufacturing process, and optimize the utilization of materials.To address this challenge, an iterative approach grounded in the principles of Design Thinking and Lean Startup methodology was employed to engineer the mechanical anchoring mechanism. Consequently, CAD models, finite element analysis simulations, and three-dimensional fabricated prototypes were developed, along with CNC milling production tests.Preliminary results suggest that the modular approach could reduce machining times by optimizing cutting parameters, reducing the volume of components in a company's and hospital's inventory, and reducing material waste. Despite the study's limitations, including the lack of dynamic testing and ISO standards, the functional feasibility of the assembly through a press-fit anchoring system provides a foundation for future development of definitive modular knee implants.
- Production feasibility of bimetallic components via two additive manufacturing approaches(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2024-11-19) Juárez Mendoza, Juan Edgar; López Botello, Omar Eduardo; emipsanchez; Vázquez Lepe, Elisa Virginia; García López, Erika; School of Engineering and Sciences; Campus Monterrey; Sandoval Robles, Jesús AlejandroLocalized property behavior has been on the upside in recent years regarding aerospace, automotive, and machinery industries, and thus it set the motivation for joining two dissimilar materials. Six bimetallic components were manufactured through two laser metal additive manufacturing (MAM) methodologies. Laser powder bed fusion (LPBF) was employed to engineer bullet shape Inconel 718 substrates. Afterwards, stainless steel 316L was poured over them via blown powder direct energy deposition (DED). Preliminary studies were carried out to optimize the samples volumetric integrity to favor good mechanical bonding based on volumetric and linear energy density. 37.3 J/mm3 and between 21.5 and 26.2 J/mm for LPBF and DED, respectively, generated the least porosity. A reasonable 81.44% junction integrity was reached with a columnar to planar transition. Intermetallic compound (IMC) diffusion was noticed yet Vickers microhardness values were in accordance with literature. Inherent discrepant thermal properties remained a challenge though. The analysis of other formed IMCs and further processes optimization are forthcoming work. The described findings are meant to set the basis for joining unrelated metals for producing components without the need of external joining components or complementary procedures
- Design and simulation of a metal additive manufacturing system by means of diode area melting technique(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022) Berni Rios, Gerardo; López Botello, Omar Eduardo; dnbsrp; Rodríguez González, Ciro Ángel; Vázquez Lepe, Elisa Virginia; School of Engineering and Sciences; Campus MonterreyMetal additive manufacturing is a field of advanced manufacturing which consists in the building of a component layer by layer based on a 3D digital model. A vast variety of technologies had been researched in different types of additive manufacturing leading to very well standardized and established processes for the industry. Even though metal additive manufacturing presents lots of benefits, there still exists problems to be solved like the residual stresses generated due to the thermal cycle the piece is exposed to during the printing, the low energy absorption efficiency for specific materials, or the long duration of the process compared to a traditional manufacturing process. The work presented in this thesis developed a finite element model for the purpose of investigating the development of the thermal distributions along x-direction and y-direction of stainless steel 316L powder by applying the Diode Area Melting (DAM) technique to a Selective Laser Melting (SLM) additive manufacturing process. ANSYS Mechanical APDL software was utilized in performing coupled thermal-structural field analysis. This work is based on the design and simulation on a metal additive manufacturing system by powder bed fusion based on the technique of Diode Area Melting, which uses an array of multiple low power diode lasers that works at shorter wavelengths as is it accustomed. This approach has the intention of tackling the problems of time production, energy efficiency and residual stresses in the part. A thermal simulation experiment is done in order to determine the best configuration parameters for the powder fusion and the stresses generated by this new printing technique.