The processes of metal additive manufacturing (AM) are no longer confined to rapid prototyping applications and seeing increasing use in many fields for the production tools finished products. ability design parts with practically zero waste, high precision, complex geometry, on-demand fabrication among advantages this approach. One drawbacks technique is productivity rate, as made layer by lay...

Associated to the weld quality, the weld bead geometry is one of the most important parameters in welding processes. It is a significant requirement in a welding project, especially in automatic welding systems where a specific width, height, or penetration of weld bead is needed. This paper presents a novel technique for real-time measuring of the width and height of weld beads in gas metal ar...

The heating and impact of arc droplet acting on the weld pool lead to transfer mass, heat, momentum, which affects dynamic behavior microstructure in P-GMAW process. In this paper, an image processing program is used extract characteristics transition high-speed photography. influence current waveform pressure quantitatively analyzed with different parameters. under conditions are further studi...

The symmetrical nature in the case of wall fabrication by wire arc additive manufacturing (WAAM) has been observed literature, but it not studied as a source knowledge. This paper focuses on comparative study three drop transfer methods employing Gas Metal Arc Welding (GMAW) technology, one most reported for manufacture aluminum alloys. modes are well-known pulsed GMAW, cold arc, and newer AC. ...

The arc welding process is widely used in industry but its automatic control is limited by the difficulty in measuring the weld bead geometry and closing the control loop on the arc, which has adverse environmental conditions. To address this problem, this work proposes a system to capture the welding variables and send stimuli to the Gas Metal Arc Welding (GMAW) conventional process with a con...