STUDY OF THE INFLUENCE OF PICUAL OLIVE OIL ON THE FORMABILITY AND SURFACE QUALITY OF PARTS MACHINED BY INCREMENTAL FORMING OF AEROSPACE ALUMINIUM ALLOYS
LIDIA-DIANA COPOT(1*), ALBERTO MARTÍNEZ-MARTÍNEZ(2), ENRIQUE GARCIA-MARTÍNEZ(2), DANIELA MONICA IORDACHE(3), NICOLAE CATALIN TAMPU(4), EUGEN HERGHELEGIU(4), LUMINITA GROSU(4), MARIA-CRINA RADU(4*)
1. School of Doctoral Studies of the “Vasile Alecsandri” University of Bacau, Calea Marasesti 157, 600115 Bacau, Romania
2. Regional Development Research Institute, University of Castilla-La Mancha, 02071 Albacete, Spain
3. National University of Science and Technology POLITEHNICA Bucharest, Pitesti University Center, 110040 Pitesti, Arges, Romania
4. “Vasile Alecsandri” University of Bacau, Faculty of Engineering, Calea Marasesti 157, 600115 Bacau, Romania
* Corresponding authors: copot.lidia@ub.ro, radu.crina@ub.ro
Abstract
The current study aims to evaluate the impact of lubrication at the tool-workpiece interface on material formability, surface roughness of the machined part, and residual stresses in superficial layer in single point incremental forming of 6061-T4 and 2024-T3 aluminum alloys. Picual olive oil was used as a lubricant. The findings indicate that lubricated machining consistently produced superior outcomes compared to dry machining as it simultaneously increased part depth, improved surface roughness, and minimized residual stresses.