In this paper, stability and internal dynamics for a gas metal arc welding (GMAW) process will be studied. GMAW process is considered as a nonlinear MIMO system and input-output feedback linearization method will be applied for control purposes. Internal dynamics is the unobservable part of the system dynamics; its stability analysis is a vital step in the investigation of the system stability ...

In this work, the thin wall components of TC4 titanium alloy were produced by using external magnetic field hybrid gas metal welding (EM-GMAW). The effect on forming, microstructure, and property wire arc additively manufactured was studied in detail. results showed that height average deposition layer EM-GMAW less than GMAW decreased with increase excitation current, width greater GMAW. micros...

OBJECTIVES Ultraviolet radiation (UVR) emitted during arc welding frequently causes keratoconjunctivitis and erythema in the workplace. The degree of hazard from UVR exposure depends on the welding method and conditions. Therefore, it is important to identify the UVR levels present under various conditions. METHODS We experimentally evaluated the UVR levels emitted in gas metal arc welding (G...

Welding is an important manufacturing process that can be automated and optimized. This paper focuses on the development of a robotic arc welding system, wherein a three-degreeof-freedom Selective Compliance Assembly Robot Arm (SCARA) is interfaced to a Gas Metal Arc Welding (GMAW) process. The entire system is composed of a robot linked to a GMAW system. Set points are derived using the desire...

/ Vol. XXVI, No. 1, January-March 2004 ABCM 28 D. S. Correia, C. V. Gonçalves, Sebastião S. C. Junior and V. A. Ferraresi Federal University of Uberlândia Faculty of Mechanical Engineering Av. João Naves de Ávila, 2.121 38400-902 Uberlândia, MG. Brazil [email protected] [email protected] [email protected] [email protected] GMAW Welding Optimization Using Genetic A...