Fillet Weld Position ((new))

In welding qualification (WPS/PQR), the position determines the range of qualification. A welder qualified in is usually qualified to weld 1F and 2F as well, but a welder qualified only in 1F (Flat) cannot weld 2F, 3F, or 4F. Mastering the 3F and 4F positions creates a more versatile welder.

Welders and inspectors, make sure to remember: fillet weld position matters! fillet weld position

| Position | Difficulty | Travel Speed | Current (vs. Flat) | Weld Size Control | | :--- | :--- | :--- | :--- | :--- | | | Easy | Fast | 100% | Easy | | 2F (Horizontal) | Medium | Medium | -5% to 10% | Tricky (top undercut) | | 3F (Vertical Up) | Hard | Slow | -10% to 15% | Moderate (weave pattern) | | 4F (Overhead) | Very Hard | Medium-Fast | -10% to 15% | Critical (keep small) | Welders and inspectors, make sure to remember: fillet

Here is a breakdown of each position, its challenges, and how to succeed. Note: Percentages are approximate

Note: Percentages are approximate. Always adjust based on material thickness and process (SMAW, GMAW, FCAW).

: The joint is positioned so the weld face is level with the ground. The workpiece is often tilted at a 45° angle to create a "V" shape, allowing the molten metal to flow naturally into the root.

1F Description: The weld is made on the upper side of the joint, with the weld face approximately horizontal.