Eventos Anais de eventos
COBEF 2017
Congresso Brasileiro de Engenharia de Fabricação
Development of welding procedure for T-joint by means of Serial coupled Plasma-GMAW process.
Submission Author:
Danilo Ribeiro , SC
Co-Authors:
Regis Henrique Goncalves e Silva, Hellinton Direne Filho, Alberto Bonamigo Viviani
Presenter: Hellinton Direne Filho
doi://10.26678/ABCM.COBEF2017.COF2017-0384
Abstract
Nowadays the continuous improvement of welding manufacturing processes is needed due to the fast technological advancing and industry demands. As each process has its own advantages and limits, the usage of hybrid welding processes is on the rise to optimize results by combining the advantages of each welding process. A new process that has been quoted and already has a commercial version is the Serial coupled Plasma-GMAW. This process attempts to combine the benefits of Plasma (high current density) and GMAW processes (satisfactory material deposition rate), for superior productivity, flexibility and robustness. Serial coupled Plasma-GMAW process has been used to join thin sheets with increased speed and to weld thick sheets without bevel with only one weld bead, which increases the overall work speed. This paper describes the welding procedures for T-joint with 5/16”, 3/8” and 1/2” thick SAE 1020 steel sheet using a Serial coupled Plasma-GMAW. A high-current pulsed GMAW process has been implemented aiming to maximize penetration and torch’s positioning parameters were improved. With the employment of Serial coupled Plasma-GMAW process for T-joint, greater penetration became possible compared to the most advanced GMAW process variants. The process also increases welding speed up to 35%, which is very appropriate while the strongest objective is to apply this technology to Brazilian industries.
Keywords
Hybrid welding, High current pulsed MIG/MAG, Thick steel sheets, High penetration welding
