Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Experimental Determination of the Parameters for the Rotary Friction Welding Process of Nickel Aluminum Bronze CuAl10Ni5Fe5
Submission Author:
Daniel Pezza Tchernov , SP , Brazil
Co-Authors:
Daniel Pezza Tchernov, Francisco Yastami Nakamoto, Mauro Machado de Oliveira, Gilmar Batalha, Givanildo Santos
Presenter: Daniel Pezza Tchernov
doi://10.26678/ABCM.COBEM2021.COB2021-0767
Abstract
One of the most important processes of solid-state joining is called Rotary Friction Welding (RFW). Its principle refers to a relative movement between two workpieces that works by rotating one against the other while a compressive axial force is applied, which produces coalescence of materials workpieces. Since the process does not form a molten pool, solidification-related problems do not occur, and it is its principal benefit to mechanical applications. This work presents the investigation of solid-state joining processes with Rotary Friction Welding (RFW) of Nickel Aluminum Bronze (CuAl10Ni5Fe5). In order to optimize the welding parameters of the similar joints, the solution was deduced by applying Design of Experiments (DOE) approach based on Factorial Experimental Design with two levels and five factors. Initially, the solid rod work piece under this investigation were welded considering the literature reference and then established the levels of each parameter. Sequentially, the two levels of DOE were conducted by solid state union varying the defined parameters. For the purpose of investigate the thermal history during the process, temperature data has been acquired through infrared thermography to be compared with the temperature distribution obtained from the transient thermal analysis made on Ansys Workbench software. Metallographic, tensile test and micro-hardness measurements were used to determine the mechanical properties of the welded joints and the correlation with the optimal values parameters of the FRW process. As a result, it was found that the mechanical properties during the RFW process are altered by increasing the hardness of the diffusion interface.
Keywords
Rotary Friction Welding, Nickel Aluminum Bronze, Factorial Experiment, Thermography, Finite Element Analysis
