Root Penetration
The distance the weld metal extends into the joint root.
Related Links
“Penetration” or “Fusion”?
Root penetration in deep soil layers stimulates mineralization of millennia-old organic carbon – ScienceDirect
Root penetration | Article about root penetration
A review of the causes and acceptance of shape imperfections – TWI
Weld Fusion vs. Weld Penetration
Related Videos

1G TIG on a 3/8 Plate (root, hot, cap)

3g TIG Plate Open Root

Lack of Root Penetration

Tips for Good Welding Penetration - Kevin Caron
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1G TIG on a 3/8 Plate (root, hot, cap)
-
3g TIG Plate Open Root
-
Lack of Root Penetration
-
Tips for Good Welding Penetration - Kevin Caron