EXPERIMENTAL INVESTIGATION OF CUTTING FORCES GENERATED DURING TURNING OF QUENCHED AND UNQUENCHED CU-AL-BE ALLOYS

Francisco Valdenor Pereira da Silva (1) , José Paulo Vogel (1) , Rodinei Medeiros Gomes (1) , Tadeu Antonio de Azevedo Melo , Anna Carla Araujo (2) , Silvio DE BARROS (1)

1 CEFET/RJ - Centro Federal de Educação Tecnológica Celso Suckow da Fonseca [Rio de Janeiro]
2 UFRJ - Universidade Federal do Rio de Janeiro [Brasil] = Federal University of Rio de Janeiro [Brazil] = Université fédérale de Rio de Janeiro [Brésil]

This work aims to study the machining cutting forces acquired during dry turning with different cutting parameters in quenched and not quenched sample. Three workpiece materials are used in this study:Cu-11.8%Al-0.60%Be, Cu-11.8%Al-0.55%Be and Cu-11.8%Al-0.55%Be-0.50%Nb-0.27%Ni. The heat treatment was carried out in orderto obtain samples with DO3 and/or martensitic structures. The cutting forces were measured with a 3-component dynamometer and it was extracted ten sequential revolutions for each tested sample. For each alloy tested, three replicates were performed with quenched workpieces and three samples without heat treatment. It was found out that the resultant forces were higher in tempered alloys due to the presence of the shape memory effect. Among these, the resulting forces were higher for samples with lower percentage of Be. However, for the additional Nb alloys were obtained the lower resultant forces.

Mots clés: Metal Casting; Cutting Forces; Shape memory alloy; Cu-Al-Be Alloy

Domaines: Mécanique [physics.med-ph]

Francisco Valdenor Pereira da Silva, José Paulo Vogel, Rodinei Medeiros Gomes, Tadeu Antonio de Azevedo Melo, Anna Carla Araujo, et al.. EXPERIMENTAL INVESTIGATION OF CUTTING FORCES GENERATED DURING TURNING OF QUENCHED AND UNQUENCHED CU-AL-BE ALLOYS. 22nd International Congress of Mechanical Engineering (COBEM 2013), 2013, Ribeirão Preto, Brazil. ⟨hal-03214828⟩