16 research outputs found
Influenza della tecnica di alimentazione “piatto unico” sulle caratteristiche del latte, sulla tecnologia di caseificazione e sulla qualità e tipicità del Parmigiano-Reggiano
Composizione e proteolisi del Parmigiano-Reggiano dal 1° al 24° mese di età: centro e periferia della forma.
Variazione della composizione e andamento della proteolisi del Parmigiano-Reggiano nel corso della maturazione in riferimento al profilo (centro e periferia) della forma.
Kinetic and Mechanistic Investigations of Oxidation of Pentoxifylline Drug by Alkaline Permanganate
Kinetic, mechanistic and spectral investigation of ruthenium (III)-catalysed oxidation of atenolol by alkaline permanganate (stopped-flow technique)
Avaliação de carga de trabalho em alunos de pós-graduação em engenharia de produção: um estudo exploratório
Numerical Simulation and Experimental Validation of MIG Welding of T-Joints of Thin Aluminum Plates for Top Class Vehicles
The integration of experiments with numerical simulations can efficiently support a quick evaluation of the welded joint. In this work, the MIG welding operation on aluminum T-joint thin plate has been studied by the integration of both simulation and experiments. The aim of the paper is to enlarge the global database, to promote the use of thin aluminum sheets in automotive body industries and to provide new data. Since the welding of aluminum thin plates is difficult to control due to high speed of the heat source and high heat flows during heating and cooling, a simulation model could be considered an effective design tool to predict the real phenomena. This integrated approach enables new evaluation possibilities on MIG-welded thin aluminum T-joints, as correspondence between the extension of the microstructural zones and the simulation parameters, material hardness, transient 3D temperature distribution on the surface and inside the material, stresses, strains, and deformations. The results of the mechanical simulations are comparable with the experimental measurements along the welding path, especially considering the variability of the process. The results could well predict the welding-induced distortion, which together with local heating during welding must be anticipated and subsequently minimized and counterbalance