To prevent undercutting, you can weld in the flat position by using multiple instead of single passes, change the shield gas, and improve manipulative techniques to fill the removed base metal along the toe of the weld bead.

Question

Quizplus · Accepted Answer

Welding in the flat position using multiple passes, changing the shield gas, and improving manipulative techniques can all help to prevent undercutting along the toe of the weld bead.

To Prevent Undercutting, You Can Weld in the Flat Position