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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- Experimental analysis of high productivity multivariable cutting tools in milling operations towards the machining of composite material (CFRP/TiAl6V4)(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2021-02-02) Carrasco Mendoza, Heber Nahum; Olvera Trejo, Daniel; puelquio, emimayorquin; Puma Araujo, Santiago Daniel; Elías Zúñiga, Alex; School of Engineering and Information Technology; Campus Monterrey; Urbikain Pelayo, GorkaDuring the last years, there has been an increased interest in the study of composites, but more specifically in Carbon Fiber Reinforced Polymer with Titanium matrix (CFRP/TiAl6V4). Since the machining of composites is different and more complicated than other materials like metals, the cutting theories of metals cannot be used for the machining of composites. This research aims to develop an analytical/mechanistic method that can describe the high productivity multivariable cutting tools and predict the best cutting parameters to avoid chatter using stability lobes; towards the machining of CFRP/TiAl6V4. One outcome is developing and validating a new design for a multivariable cutting tool based on experimental data analysis. The study will be done in a practical and modeling environment to be optimized with a computational approach. Different modeling and optimization techniques will be explored to evaluate the performance of the design cutting tool. To obtain the ideal cutting coefficients, edge characterization was performed. Stability lobes were explored with the multivariable tools to get the best boundaries. Also, time-domain simulations based on the Continuous Wavelet Transform (CWT) graphs, Power Spectral Density (PSD) charts, and Poncairé Maps were used to validate the stability lobes boundaries found by using the first-order EMHPM for the multivariable tools.
- A proof of concept system for the implementation of path planning strategies in the context of additive manufacturing of composites(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2020-06-05) Salinas Sáenz, Sergio Alejandro; Ahuett Garza, Horacio; ilquio/tolmquevedo; Orta Castañón, Pedro; Urbina, Pedro; School of Engineering and Sciences; Campus MonterreyIn recent years, the use of additive manufacturing (AM) technologies has increased significantly in industrial applications. In AM processes, which can produce complex shapes layer by layer, the end-product presents anisotropic properties that depend mostly on the deposition trajectory. The problem is that there is a bottleneck in research and improvement of these properties, due to limitations on the deposition trajectory control. In the case of commercial systems, the end-product mechanical properties are not taken into consideration, and the limited selectable options impedes the designer’s tool-path strategies to be implemented. This thesis presents a proof of concept system integrated by an adapted machine system and a software framework that allows the designer to implement and test the path planning strategies for the deposition trajectory control. An overview of the hardware conditioning is explained, and a proof of concept strategy is proposed for increasing the deposition trajectory continuity, as a proof of use of the system in the context of additive manufacturing of composites.
- Evaluation of Forged composite on 3D Carbon Fiber composites for exoskeletons(Instituto Tecnológico y de Estudios Superiores de Monterrey) Pérez Salazar, Miguel Alejandro; MARTINEZ ROMERO OSCAR; 2278430; Martínez Romero, Oscar; puelquio, emipsanchez; Elías Zuñiga, Alex; Olvera Trejo, Daniel; Ramírez Herrera, Claudia Angélica; School of Engineering and Sciences; Campus Monterrey; Jimenez Cedeño, Isaac HumbertoComposite materials have been widely used in recent years for their outstanding mechanical properties in different industries, especially aerospace and automotive. However, the use of these materials has impacted the development of Exoskeletons to increase physical performance to complete specific tasks or movements in the human body. Exoskeletons have been developed using aluminum and different alloys, but it has been migrated to the composite material. The evolution of the composite material to 3D woven has shown good out-of-plane mechanical properties. In most cases, composites are developed by infusion processes even though compaction has proven an increase the mechanical properties. The research aims to create an infusion and compression manufacturing system to produce 3D composite materials, delivering stable and better mechanical properties for exoskeletons components. Several experiments and tests were developed to define the best manufacturing process based on the resin distribution and the mechanical properties obtained. The mechanical properties of 3D woven composites were improved using infusion and compression molding by ensuring better impregnation and distribution of the resin through the composite and increase the mechanical properties significantly for tension and flexion. Finally, it was applied in designing a component of an exoskeleton, obtaining a saving in weight and reduction of volume.