The summary of ‘3G GAS SHIELDED FLUX CORE with a Backer’

The video showcases welding demonstrations focusing on flux core welding, welding techniques using stringers, and achieving three passes to complete a plate. Key points include specific welding settings, proper technique for different welding stages, maintaining contact tip to work distance, using stringers for better performance, and ensuring proper weld reinforcement. The importance of letting slag cool before removal and achieving optimal cap placement are highlighted. The welders emphasize the significance of continuous learning and improvement in welding skills while thanking viewers for watching and encouraging engagement on social media.

00:00:00

In this segment of the video, the welder demonstrates flux core welding on a 3G plate using ASTM A36 steel. The process involves running the root, interpass, fills, and caps using specific settings including the Esab Rebel 285 welder, Select Arc 730 wire, .045 diameter wire, 350 inches per minute, 26 volts, and 75/25 gas at 30 CFH. The welder explains the technique of starting at the bottom and working upwards, focusing on the sides and maintaining a 3/4 to 1-inch contact tip to work distance. The importance of letting the slag cool before chipping it off is also highlighted to protect the weld from impurities. The welder provides guidance on restarting the weld and emphasizes the contact tip to work distance throughout the process.

00:03:00

In this segment of the video, the welders are demonstrating how to perform welding with stringers as opposed to weaves. They emphasize manufacturers testing rods with stringers for better performance. The key points include placing the first interpass strategically, ensuring welds are centered and equal on the toe, achieving 50% coverage into the plate and weld, using slight oscillation to manipulate the puddle, pausing at the top to build the foundation for the next pass, and staying 1/16 below the plate edge for optimal cap placement.

00:06:00

In this segment of the video, the welder demonstrates welding techniques, aiming for three passes to reach the other side of the plate. They emphasize keeping the weld reinforcement under 1/8 inch and ensuring each pass ties into the previous weld. The final pass should tie into the right-hand side of the plate to maintain the desired weld profile.

00:09:00

In this segment of the video, the male welders discuss the issue of not pausing long enough during welding, leading to flatter and better tie-ins on the right side. They mention using a gauge to ensure weld reinforcement is under 1/8 inch. The welders thank viewers for watching, encourage engagement on social media platforms, and urge continuous improvement in welding skills.