Abrasive Wear in Hard Thin Films Coated Dies in Hot Extrusion Aluminum

Autores/as

  • J. Herrera Universidad Autónoma de Nuevo León
  • D. Martínez Universidad Autónoma de Nuevo León
  • J. Rodríguez Universidad Autónoma de Nuevo León
  • R. González Universidad Autónoma de Nuevo León

DOI:

https://doi.org/10.29105/qh2.2-135

Palabras clave:

Wear, hard coatings, extrusion, nano indentation

Resumen

Abrasive wear resistance ofhot extrusion AISI H 13 coated dies used to produce extruded aluminum micro multivoid tubes was studied. In this process, aluminum and dies are constantly under high friction conditions producing premature die wear; aluminum or lubricant adherence on die surface !ayer, is caused by this phenomenon with product rejection as a consequence. The hot extrusion dies most important properties are hot hardness, wear resistant and surface finishing. Extrusion dies coated with hard thin film coatings by physical vapor deposition, PVD and chemical vapor deposition, CVD, were utilized and thermal diffusion treatment asan altemative. The thin film coatings mechanical properties, nano indentation, and SEM surface analysis were performed to characterize coatings and dies. The wear mechanism was determined and it is affected by the die contact surface !ayer finished by electropolishing and the dies coated with thermal diffusion treatment was the most resistan! condition to the wearprocess dueto the presence ofV and Nb carbonitrures.

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Biografía del autor/a

J. Herrera , Universidad Autónoma de Nuevo León

Facultad de Ingeniería Mecánica y Eléctrica

J. Rodríguez, Universidad Autónoma de Nuevo León

Facultad de Ingeniería Mecánica y Eléctrica

R. González, Universidad Autónoma de Nuevo León

Facultad de Ingeniería Civil

Citas

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Publicado

2012-03-31

Cómo citar

Herrera , J. ., Martínez , D., Rodríguez, J. ., & González, R. (2012). Abrasive Wear in Hard Thin Films Coated Dies in Hot Extrusion Aluminum. Quimica Hoy, 2(2), 1–5. https://doi.org/10.29105/qh2.2-135

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