| KEYWORD |
Studio dell'applicabilitą di termografia a infrarossi come tecnica non distruttiva per i giunti saldati di uso ferroviario
Tesi esterna in azienda
Parole chiave NDT, SALDATURA, SPERIMENTAZIONE
Riferimenti MANUELA DE MADDIS, FRANCO LOMBARDI, RAFFAELLA SESANA
Tipo tesi MODELLISTICA-SPERIMENTALE, SPERIMENTALE IN LABORATORIO
Descrizione The welding process has a detrimental effect on joints of train aluminum components because of the formation of improper microstructures and/or of defects (e.g. cracks, incomplete penetration, and pores), both at a microscopic and macroscopic scale.
nondestructive inspections are needed to be time and cost effective, thus they should be suited for an automatic inspection.
Infrared thermography is one of the most promising thermal nondestructive technique (NDT) to detect defects in fusion joints.
This technique could be effectively used to detect defects in lasers welding joints in train components with the aim of improving quality and, hence, mechanical properties of fusion joint.
The thesis aims at defininig the detection procedure and quantify the detection resolution of the thermographic technique in assessment of defects in welded joints and the simulation of the joining process.
The thesis will be held in ALSTOM (Savigliano, Torino)
Conoscenze richieste meccanica di base, principi di processo
Scadenza validita proposta 20/01/2021
PROPONI LA TUA CANDIDATURA