Formación de rebabas y su control para el micro-fresado de polímeros: Un caso de estudio con refrigeración por tubo vortex

Publicado

2017-10-01

Burr formation and control for polymers micro-milling: A case study with vortex tube cooling

Formación de rebabas y su control para el micro-fresado de polímeros: Un caso de estudio con refrigeración por tubo vortex

Palabras clave:

Micro-milling, Burr, Polymer machining, Vortex cooling (en)
Micro-fresado, Rebaba, Maquinado de polímeros, Refrigeración con tubo vortex (es)

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Autores/as

Michael Miranda Giraldo Universidad del Norte https://orcid.org/0000-0002-6795-076X
David Alfonso Serje Universidad del Norte https://orcid.org/0000-0001-9963-9231
Jovanny Alejandro Pacheco Bolívar Universidad del Norte https://orcid.org/0000-0001-7632-7227
Jorge Luis Bris Cabrera Universidad del Norte https://orcid.org/0000-0003-2009-8044

Resumen (en)
Resumen (es)

Micro-machining of different polymer based components often require high precision and excellent surface quality at high production rates with low costs. Micro-milling is a cost-efficient micro-machining process capable of generating complex shapes in a wide range of materials. Challenges based on size effect, burr formation and adequate chip removal must be faced and are addressed in this research. Material removal mechanisms, as well as its impact on burr formation and control are reviewed, followed by a case study through the application of gaseous cooling based on vortex tubes. Different vortex generator configurations were tested, proving to be fast response an economically-friendly alternative for burr reduction while micro-milling biopolymers. Configurations, as mentioned above, were used for biopolymer micro-milling towards burr measurement after each test; achieving as a result, a burr reduction while cooling temperature decreases.

El micro-maquinado de diferentes componentes basados en polímeros a menudo requiere de gran precisión y un excelente acabado superficial a unas tasas elevadas de producción con un bajo costo. El micro-fresado es un proceso costo-efectivo de micro-maquinado capaz de generar formas complejas en una amplia variedad de materiales. Retos basados en el efecto tamaño, formación de rebabas y una adecuada remoción de la viruta deben ser enfrentados y son tratados en la presente investigación. Los mecanismos de remoción de material, al igual que su impacto en la formación de rebabas y su control, son revisados, acompañados de un caso de estudio a través de la aplicación de refrigeración gaseosa basada en tubos vortex. Diferentes configuraciones de generadores de vortex son probados, demostrando ser una alternativa de respuesta rápida, económica y amigable para la reducción de rebabas mientras se micro-fresan biopolímeros. Dichas configuraciones se utilizaron en el micro-mecanizado de un polímero bio-compatible, midiendo el tamaño de rebaba que se genera en cada prueba, dando como resultado la disminución de estas a media que baja la temperatura de refrigeración.

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Citas

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