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00:00:00 – 00:12:56
The video showcases welding techniques focusing on maintaining a tight arc, proper rod angle, and sufficient amperage for improved weld quality. It emphasizes arc control, bead placement, and avoiding undercut for successful welding. The importance of clean mill scale removal, practice, proper rod storage, and efficient restart techniques are highlighted. Techniques for overhead welding with a 7018 rod, filling in grooves, and using partial rods for structural steel applications are demonstrated. The video also promotes Weldmonger.com for welding products and DVDs covering various welding topics like steel, stainless steel, chromoly, aluminum, and titanium welding.
00:00:00
In this part of the video, the speaker demonstrates the importance of maintaining a tight arc while welding overhead with 70 18 rods. They highlight the consequences of not using a tight arc, such as excessive sparks and a messy weld. By tightening the arc, adjusting the rod angle, and ensuring sufficient amperage, the weld quality significantly improves. The speaker also discusses techniques for welding thick metal, stacking multiple beads, and managing undercut. They emphasize the use of minimal rod angle and steady movements for successful weld stacking and proper weld finish. Additionally, the speaker shows that welding on hot rolled steel with mill scale without cleaning can still produce successful practice welds.
00:03:00
In this segment of the video, the focus is on welding techniques involving mill scale removal and bead overlapping. The presenter explains that it is better to clean off mill scale for improved welding performance and to prevent undercut. Demonstrating a multi-pass welding process and emphasizing consistent arc length and rod angle, the video showcases bead placement and the importance of avoiding undercut. The presenter mentions the need for practice to improve welding skills. Amp-set penetration is highlighted as a crucial factor, leading to a cut and etch test to ensure welding quality. Additionally, the video addresses the use of leftover rods and restart techniques as part of the learning process.
00:06:00
In this segment of the video, the focus is on overhead welding techniques with a 165-amp setting for a 5/32-7018 rod. The rule of thumb is to set the amperage high enough so the rod won’t stick when holding a tight arc. Maintaining a slight drag angle and avoiding extreme angles is essential to prevent issues such as slag running ahead or the bead crowning up. Efficient restart techniques are demonstrated to avoid arc strikes, which are considered defects. The importance of proper rod storage in a rod oven for low hydrogen rods like the 7018 is highlighted. The process involves overlapping the first bead by two-thirds to three-quarters for the second bead, maintaining a steady hand, and using the toes of the weld as a guideline for a straight bead.
00:09:00
In this segment of the video, the welder is using partial rods, resulting in multiple restarts to cover the distance. Each restart involves welding over the previous restart trash. The welder ensures they have enough rod to complete the weld and adjusts the rod angle for the final bead to prevent undercut on the top member. A slower travel speed is used to fill in a groove and create an even fillet. The welder demonstrates a slight rod oscillation technique and mentions the importance of fine-tuning the arc force setting. This welding process is common for structural steel applications. The video is sponsored by Weldmonger.com, where new products are regularly added, and DVDs on welding techniques are available.
00:12:00
In this segment of the video, the speaker highlights the quality of a particular DVD they have made, emphasizing its usefulness for tackling challenging welding tasks such as routing a pipe uphill or downhill. They mention that the DVD covers a variety of welding topics, including steel, stainless steel, chromoly, aluminum, and titanium welding. The speaker encourages viewers to visit weldmonger.com to explore the DVD further.