1G Plate Stick Welding | SMAW

WeldTube

18 Apr 202212:59

Summary

TLDRIn this instructional video, Roscendo Rodriguez from South Coast Welding Academy in Houston, Texas, demonstrates the process of welding on a one-inch plate in a 1G position using a 332 liner. He emphasizes the importance of cleaning the plate, proper tack welding, and maintaining a consistent angle and technique throughout the process. Rodriguez provides detailed instructions on starting the root pass, hot pad, hub pass, and fill pass, highlighting the need for attention to detail and practice for achieving a high-quality weld. He concludes with tips on capping the weld and offers resources for further learning and discounts on welding supplies.

Takeaways

🛠️ Clean the back and front of the one-inch plate, ensuring a half-inch clean area around the edges.
🔥 Use a 332 liner with 7018 332 for welding on thick plates like the one-inch plate, which retains a lot of heat.
💺 Position the 332 liner as a spacer, ensuring a proper landing on both plates.
📐 Tacking is crucial; apply tacks at the corners of the plates, being mindful of the arc length and puddle connection.
🔧 Quarter your tacks to prevent uneven pulling during the welding process.
🌐 Start the root pass by warming up the metal from a distance and then move forward, using a stitch technique.
📐 Maintain a 60/10/18 angle while welding, adjusting as necessary to keep the keyhole centered.
🔄 Zigzag technique is used for the hot pass at 130 amps, ensuring full coverage from wall to wall.
🚫 Avoid rushing and ensure proper stacking by continuously feeding during the welding process.
💡 If imperfections occur, they can be evened out without worry, as long as the overall technique is followed correctly.
🌟 Cap the weld carefully, either slightly under flush or perfectly flush, and grind any high spots for a clean finish if allowed.

Q & A

What is the main topic of the video?
-The main topic of the video is demonstrating the process of welding on a one-inch plate in a 1G position using stick out technique.
Where is Roscendo Rodriguez welding taking place?
-Roscendo Rodriguez welding is taking place at South Coast Welding Academy in Houston, Texas.
What type of liner is recommended for welding on a one-inch plate?
-A 332 liner is recommended for welding on a one-inch plate.
How should the 7018 332 liner be prepared for use?
-The 7018 332 liner should be bent to be used as a spacer, and care should be taken to ensure a good 332 landing on both plates.
What is the purpose of tacking the plate?
-Tacking the plate helps to secure it in place before starting the welding process, ensuring stability and accuracy.
What is the key technique for warming up the metal during the welding process?
-The key technique for warming up the metal is to start from the back and move forward, using a stitching motion and maintaining a consistent angle throughout.
How should the keyhole be managed during welding?
-The keyhole should be managed by adjusting the angle of the rod if it starts to shift, ensuring it remains centered and maintaining proper penetration and fusion.
What is the recommended amperage range for the hot pass?
-The recommended amperage range for the hot pass is 130 amps, plus or minus, indicating a very hot process that requires care.
What is the welding technique used for the hot pass?
-The welding technique used for the hot pass involves zigzagging from wall to wall, feeling both walls with the tip of the rod, and maintaining a consistent speed and angle.
How should the final cap of the weld be done?
-The final cap of the weld should be done by following a guideline, ensuring the puddle is in the center of the guideline, and maintaining a consistent speed and angle without rushing or bouncing.
What advice is given for dealing with imperfections in the welding process?
-Imperfections can be managed by evening them out, and if grinding is allowed, any high spots can be ground down for a cleaner finish. Practice is emphasized for improvement.

Outlines

00:00

🛠️ Welding on a One-Inch Plate: Introduction and Setup

In this introductory paragraph, Roscendo Rodriguez, a welding instructor at South Coast Welding Academy in Houston, Texas, welcomes viewers back and sets the stage for a tutorial on welding a one-inch plate in the 1G position. He emphasizes the simplicity of the process and encourages viewers to pay attention to the details. Rodriguez instructs on cleaning the plate, placing a 332 liner with caution due to the plate's heat retention, and using a 7018 332 as a spacer. He also provides tips on checking the landing, tacking the plate, and the importance of proper arc and puddle management during the welding process.

05:06

🔥 Performing the Root Pass and Hot Pad

This paragraph details the execution of the root pass and the subsequent hot pad. Rodriguez instructs on grinding the root pass clean and preparing for the hot pad at 130 amps, which requires careful handling due to the high heat involved. He explains the zigzag technique for the hot pad, emphasizing the need to touch both walls with the tip of the rod and maintain a consistent speed. The paragraph also covers the fail pass at 130 amps, where the zigzag pattern is continued, and the importance of monitoring the gap and keyhole to ensure proper penetration and fusion. Adjustments to amperage are discussed to address issues with the keyhole and gap width.

10:06

🏗️ Finishing the Fill and Capping the Weld

The final paragraph focuses on completing the fill pass and the capping process of the weld. Rodriguez guides through the process of adding layers and ensuring a tight and even fill without slag or lack of fusion. He addresses potential imperfections and provides solutions for evening out the weld. The capping process is described with attention to maintaining a consistent angle and speed, ensuring proper fusion, and checking for porosity or inclusions. The importance of practice and patience is highlighted, and Rodriguez invites viewers to visit the store for quality welding supplies, offering a discount code for a 10% discount on welding flight.

Mindmap

Keywords

💡Welding

Welding is a fabrication process that joins materials, usually metals, by causing coalescence through the application of heat with or without pressure, and with or without filler material. In the video, the host demonstrates the process of welding on a one-inch plate in a 1G position, which is a horizontal fixed position where the weld is applied from the bottom.

💡1G Position

The 1G position refers to a specific welding position where the weld is performed on a horizontal surface, with the welder standing above the work and welding downwards. This position is common for applications such as pipeline welding. The video script describes this position as the setup for the welding demonstration.

💡Stick Out

Stick out, in the context of welding, refers to a technique where the electrode is held at an angle and slightly away from the workpiece to ensure proper penetration and fusion. It is a critical aspect of the welding process that affects the quality of the weld.

💡332 Liner

A 332 liner is a type of welding filler material used in the process of gas tungsten arc welding (GTAW or TIG). It is a tungsten electrode that is used to create the arc and fill the weld pool. In the video, the 332 liner is used as a spacer to ensure the correct gap and landing during the welding process.

💡Tacking

Tacking is the process of making small, temporary welds to hold parts in place before completing the full weld. It is used to secure the position of the workpieces to be joined and to stabilize the assembly during the welding process. In the video, tacking is used to hold the one-inch plate in place before starting the main weld.

💡Root Pass

The root pass is the initial weld pass that is made in a multi-pass welding process. It is the first layer of metal applied to the joint and is critical for establishing a solid base for subsequent passes. The root pass is designed to provide penetration and fusion between the base materials without creating excessive buildup.

💡Hot Pass

A hot pass in welding is a subsequent weld pass that follows a root pass, typically used to fill the joint and prepare the surface for the final passes. It is performed while the base material is still hot, hence the term 'hot pass', and is meant to ensure proper fusion and minimize the risk of porosity.

💡Fail Pass

The fail pass, also known as the fill pass, is a weld pass used to fill the joint between the root pass and the final cap pass. It ensures that the joint is completely filled with weld metal, eliminating any gaps or voids that could compromise the integrity of the weld.

💡Cap Pass

The cap pass is the final weld pass applied to a weld joint. It is used to smooth and finish the weld, ensuring a clean and uniform appearance. The cap pass is critical for both the aesthetic and functional integrity of the weld, as it can help to seal out contaminants and provide a protective surface.

💡Zigzag Technique

The zigzag technique is a method used in welding where the welder moves the electrode in a zigzag pattern to fill the joint or to make the final pass on a weld. This technique helps to ensure even distribution of weld metal and promotes better fusion between the base material and the filler.

💡Keyhole

The keyhole is a term used in laser and plasma cutting, as well as in welding, to describe the small hole that forms at the center of the weld pool due to the intense heat. In welding, controlling the keyhole is crucial for maintaining a stable arc and ensuring proper penetration and fusion.

Highlights

Roscendo Rodriguez demonstrates welding on a one-inch plate in a 1G position.

The process involves cleaning the back and front of the plate, as well as the walls, about half an inch onto the plate.

A 332 liner is used, with caution advised not to have too much of a landing due to the heat retention of the thick plate.

The 7018 332 is used as a spacer, with emphasis on checking the landing to ensure a good 332 landing on both plates.

Tacking the plate involves small tacks at the corners on each side of the plate, with a long arc and careful attention to the puddle connection.

The welding technique involves stitching forward, warming up the metal from the back, and using a keyhole technique with pressure and dragging.

The welding rod is angled at 10-15 degrees towards the welder and to the right for proper keyhole control.

Monitoring the keyhole is crucial, with adjustments made to the angle if it shifts to ensure it remains centered.

The root pass is performed with attention to the gap and keyhole, adjusting amperage if necessary for proper penetration.

After the root pass, the weld is cleaned before proceeding to the hot pass at 130 amps, using a zigzag technique from wall to wall.

The fail pass involves a similar zigzag technique, ensuring full coverage and even distribution of metal.

Stringers are placed with care to avoid slag or lack of fusion, maintaining a tight and even stack.

The final pass, capping, is done with attention to the guideline, ensuring a flush or slightly under-flush finish.

Post-weld grinding is recommended for a good-looking cap, following the bevel and checking for imperfections.

The importance of practice and patience is emphasized, with the process being long and requiring careful attention to detail.

A discount code for the store is provided for a 10% off on welding supplies.