| Journal: | Informador técnico |
| Database: | PERIÓDICA |
| System number: | 000363798 |
| ISSN: | 0122-056X |
| Authors: | Martínez Aneiro, Federico2 Vidal, Miguel2 Sánchez, Teresa2 Moreno, Luis Henry1 Prieto, Pedro3 |
| Institutions: | 1Servicio Nacional de Aprendizaje, Centro Nacional de Asistencia Técnica a la Industria, Cali, Valle del Cauca. Colombia 2Instituto Superior Politécnico "José Antonio Echeverría", Facultad de Ingeniería Mecánica, La Habana. Cuba 3Universidad del Valle, Centro de Excelencia de Nuevos Materiales, Cali, Valle del Cauca. Colombia |
| Year: | 2010 |
| Number: | 74 |
| Pages: | 23-28 |
| Country: | Colombia |
| Language: | Español |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| Spanish abstract | Dado que la evaluación física de los recubrimientos no brinda suficiente información sobre el comportamiento de insertos recubiertos durante el maquinado, en el presente estudio se han analizado insertos de carburo de tungsteno (WC) recubiertos con multinanocapas de [TiN/TiAlN]n (200 y 300 capas) con un espesor de 4 μm utilizando la técnica de deposición física reactiva en fase vapor (PVD) y se compararon con insertos recubiertos tipo monocapa de TiCN-Al2O3-TiN (TINAL) producidos de forma industrial. Mediante esta técnica las capas depositadas están en el rango de los nanómetros. Se realizaron ensayos de temperatura, mediciones de rugosidad superficial en la pieza, huella de contacto y se mostraron resultados de desgaste. Los ensayos se llevaron a cabo sobre probetas de acero AISI 4340 endurecido 50HRc aplicando altas velocidades de corte (HSC). Los valores de temperatura fueron inferiores. Así, para los insertos de 300 capas la disminución fue de 520 °C y para los de 200 capas de 770°C. Los resultados de los ensayos de desgaste demostraron que los insertos recubiertos con 200 y 300 capas alcanzaron valores de vida útil mayores en un 44% y 57 % respectivamente, comparados con el valor obtenido (7600m) por el inserto de TINAL |
| English abstract | The physics evaluation of the coating inserts don’t give enough information about the results during the machining, the present paper presents a study of tungsten carbide inserts (WC), coated with multinanolayers of [TiN/TiAlN]n. The coating has a 4μm thickness and contains 200 or 300 layers. This has been obtained by using a Plasma Assited Physical Vapor technique (PVD). The results obtained during the experiments were compared with the monolayer coated inserts (TiCN- Al2O3 -TiN) produced in an industrial way. This technology enables layers thickness to be in the order of nanometers. Tool life, temperature, roughness of the surface on the workpiece and in the inserts, and the print of contact were the variables measured during experimentation. The tests were carried out using AISI 4340 steel workpiece with 50 HRc and using High Speeds Cutting (HSC). The physics evaluation of the coating inserts don’t give enough information about the results during the machining, the present paper presents a study of tungsten carbide inserts (WC), coated with multinanolayers of [TiN/TiAlN]n. The coating has a 4μm thickness and contains 200 or 300 layers. This has been obtained by using a Plasma Assited Physical Vapor technique (PVD). The results obtained during the experiments were compared with the monolayer coated inserts (TiCN- Al2O3 -TiN) produced in an industrial way. This technology enables layers thickness to be in the order of nanometers. Tool life, temperature, roughness of the surface on the workpiece and in the inserts, and the print of contact were the variables measured during experimentation. The tests were carried out using AISI 4340 steel workpiece with 50 HRc and using High Speeds Cutting (HSC) |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Recubrimientos de multicapa, Desgaste, Nitruro de titanio, Nitruro de titanio-aluminio, Carburo de tungsteno, Rugosidad superficial, Pulverización catódica |
| Keyword: | Engineering, Materials engineering, Multilayer coatings, Wear, Titanium nitride, Titanium-aluminum nitride, Tungsten carbide, Surface roughness, Magnetron sputtering |
| Full text: | Texto completo (Ver HTML) |
