Rob Pistor
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View article: Direct energy deposition via arc manufacturing using ultra-low heat input gas metal arc welding
Direct energy deposition via arc manufacturing using ultra-low heat input gas metal arc welding Open
The use of advanced pulsed waveform control during gas metal arc welding is evaluated for additive manufacturing, also known as 3D printing. This investigation used a water-cooled base and a modified wave shape, operating in the short-circ…
View article: On the Visualization of Gas Metal Arc Welding Plasma and the Relationship Between Arc Length and Voltage
On the Visualization of Gas Metal Arc Welding Plasma and the Relationship Between Arc Length and Voltage Open
In this article, the camera settings for high-speed imaging of the arc, metal transfer, and weld pool in gas metal arc welding (GMAW) are investigated. The results show that by only changing camera exposure times and the selection of narro…
View article: Pulse profile and metal transfer in pulsed gas metal arc welding: droplet formation, detachment and velocity
Pulse profile and metal transfer in pulsed gas metal arc welding: droplet formation, detachment and velocity Open
The influence of current profile and pulse parameters on droplet formation and transfer was investigated. One profile has an exponential ramp up and down in the current pulse shape, while the second is nearly square shaped. High-speed phot…