iRubric: Open Root Welding Rubric

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Open Root Welding Rubric

SMAW Welding Rubric

Students will use SMAW welding techniques to weld 1/4" plate with a 1/8" - 1/4" open root followed by a cover pass.

Rubric Code: LXW7884

By sosborneccsd

Ready to use

Public Rubric

Subject: Vocational

Type: Project

Grade Levels: 9-12

Welding Joints
	Advanced 4 pts	Proficient 3 pts	Basic 2 pts	Below Basic 1 pts	Total Points (N/A)
Tack Welds: 100 % Tack welds are placed at each end to hold the proper gap.	Advanced Tack welds are uniform in size and are found at each end. The gap is a consistent width the entire length of the pieces. The tack welds are not welded over.	Proficient Gap is of the correct width throughout but the tack welds are not uniform or are welded over.	Basic Tack welds are not uniform or are welded over. The gap is inconsistent in size.	Below Basic No gap for the root bead.	Total Points
Weld Appearance 100 % Smooth with uniform dense ripples, doesn’t show the bead traveling to fast or slow	Advanced Weld shows a constant speed and uniformity the entire length	Proficient Weld shows a constant speed with some blemishes that are minimal	Basic Weld shows definite areas of speeding up and slowing down. Ripples tend to be coarse	Below Basic Weld has been done to fast or to slow. Weld is not complete	Total Points
Cover Bead: 100 % Convex, free of voids and high spots, shows uniformity throughout the bead	Advanced Has a nice rounded look. Is not overly high, or low. Bead covers a wide area of each weld.	Proficient Bead is well rounded, mostly uniform over the length of the weld. Shows some high spots and low spots	Basic Bead shows many high and low area's. Total lack of uniformity throughout the weld	Below Basic Weld does not blend into one single bead.	Total Points
Root Bead 100 % Good penetration but no blow through.	Advanced The root bead fills in the entire depth of the gap. At least 1" of the root bead remains. The root bead had all slag removed with a clean appearance.	Proficient The root bead fills in the entire depth of the gap but was entirely covered by the cover bead.	Basic Unclean root bead caused slag inclusion in the cover bead.	Below Basic Metal is burned through. Weld has no connection to metal.	Total Points
Beginning and ending full size 100 % Crater well filled	Advanced End of each weld is complete, the line doesn't taper off	Proficient Weld ending is full but shows some tapering and a craterpresent	Basic Crater distinctly present at the end of the bead.	Below Basic Metal is burned through at the end	Total Points
Surrounding Plate 10 % Welding surface free of spatter	Advanced Spatter is kept to a minuimum.	Proficient Some spatter is present but not displeasing	Basic Spatter is in large amounts	Below Basic Spatter takes away from the integrity of the weld.	Total Points
Metal Pieces 100 % Proper directions were followed when prepping the metal	Advanced Pieces were cut to exactly 6". All pieces were cleaned with a wire brush or wire wheel prior to welding.	Proficient Metal was properly cleaned but the sizes were off by up to 1/4".	Basic Metal was properly cleaned but for at least one of the pieces the size was off by up to 1/2".	Below Basic Metal was not properly cleaned and at least one of the pieces size was off by more than 1/2".	Total Points
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Subjects:

Vocational

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