4g Welding Position Jun 2026

In this video, you will learn: The Gravity Factor: Why vertical and overhead welds are the ultimate test of puddle control . 3G Te... YouTube Show all Gap & Land: Often set at a 1/8" gap and 1/8" land for standard 3/8" plate tests. Electrode Motion: Maintain a tight arc and use a slight "step and pause" or "whipping" motion (for 6010 rods) to ensure penetration without burning through. Arc Length: Keep it extremely short to maintain puddle stability. YouTube +3 2. Fill and Cap Passes Heat Management: Use slightly lower amperage than you would for flat welding (e.g., ~85-95 amps for a 3/32" 7018 rod). Weave Technique: A tight "Z-motion" or slight weave helps tie in the sidewalls and prevents the center from sagging. Rod Angle: Maintain a 10–15° travel angle (pushing) and a 90° work angle. YouTube +3 ⚠️ Critical Challenges Visibility: Sparks and slag fall directly toward the welder, often obstructing the view. Fatigue: Holding your arms overhead for long periods can lead to instability; try to brace your body or use a "dry run" to check your range of motion. Safety: Full leather jackets, bandanas, and high-quality respirators are essential to protect against falling molten metal. YouTube +5 📈 4G vs. 4F: What’s the difference? Feature 4G (Overhead Groove) 4F (Overhead Fillet) Joint Type Butt or Groove joints (V-prep) T-joints, Lap joints, or Corners Common Use Structural plates, bridge beams Mounting brackets, gussets Test Focus Full penetration and root tie-in Leg size and throat thickness If you're prepping for a specific test, could you tell me: Which

While flat and horizontal welding allow gravity to assist the process, the 4G position pits the welder directly against gravity. This guide covers the definition, challenges, techniques, and best practices for overhead welding. 4g welding position

According to AWS terminology, the code breaks down as follows: In this video, you will learn: The Gravity