Estudio de la influencia de la presión del bruñido hidrostático por bola en la rugosidad superficial del Inconel® 718 y del Ti6AL4V
- P. FERNÁNDEZ-LUCIO 1
- G. GÓMEZ-ESCUDERO 1
- A. DEL OLMO 1
- F. MARIN 2
- A. RODRÍGUEZ 2
- L.N. LÓPEZ DE LACALLE 2
- 1 Universidad del País Vasco (UPV/EHU) Escuela de Ingeniería de Bilbao, Departamento Ingeniería Mecánica
- 2 Universidad del País Vasco (UPV/EHU) Centro de Fabricación Avanzada Aeronáutica (CFAA)
ISSN: 1137-2729
Argitalpen urtea: 2021
Alea: 25
Zenbakia: 2
Orrialdeak: 21-28
Mota: Artikulua
Beste argitalpen batzuk: Revista iberoamericana de ingeniería mecánica
Laburpena
Superfinishing processes, such as hydrostatic ball burnishing, improve the surface quality of components and generate compressive residual stresses that can increase the performance and service life of parts to which these technologies are applied. One of the main advantages of hydrostatic ball burnishing technology is that it can be integrated directly into machining centres. In this way, time and errors arising from clamping changes or the need for specific tooling are reduced. Moreover, as this is a process in which a ball rolls over a surface, the feed speed that can be reached is very high (even the maximum allowed by the machine), considerably reducing machining and finishing times. This study has analysed the burnishing parameters that minimise surface roughness on components made of the heat-resistant superalloys Inconel® 718 and Ti6Al4V. The influence of the hydrostatic pressure of burnishing on the material was evaluated. For this purpose, the tests were carried out with two levels of hydrostatic pressure. It was found that with the use of 30 MPa it is possible to improve the surface quality Sz by up to 51% for Inconel® 718 and 81% for the titanium alloy