iRubric: SMAW/GMAW/GTAW 1-4G joint Assessment Rubric

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SMAW/GMAW/GTAW 1-4G joint Assessment Rubric

Used to evaluate students performance welding beads in all positions. Covers penetration, bead width, bead height, appearance, and instruction and dimensions of plate

Rubric Code: WX8275A

By LSC_WLDG_CRED

Ready to use

Public Rubric

Subject: Vocational

Type: Exam

Grade Levels: Undergraduate

SMAW/GMAW/GTAW
	Failed 5 pts	Bad 10 pts	Better 15 pts	Best 20 pts
Penetration	Failed Weld/filler metal is on top of the base metal, or to one side Burn through of base metal. Hole(s) in root or blow out. Large icicles present in root No penetration, or excessive penetration. No prep. on stop and start. Holes filled with out prep.	Bad Some evidence of no penetration in some of the Root weld. Suck-back present Holes present some excess root reinforcement	Better Evidence of good penetration in the root weld.	Best Weld bead has sufficient buildup and no burn through with consistent weld penetration to or under the the standard of 1/8th inch reinforcement. Very Clean
Width of Bead	Failed The width of the weld bead over 3/8 to 1/2 in. in most areas throughout. Weld beads under 1/4 inch in most areas through.	Bad The width of the weld bead slightly above or below 1/4.	Better The width of the weld bead mostly 1/4 of an inch but toes of the weld are sloppy and have many inlets or other deficiencies.	Best The width of weld bead consistent 1/4 of an inch. Toes are tight and lack other notable deficiencies.
Height of bead	Failed Not consistent and very uneven. Lots of Highs and lows. Indication of lack of surface preparation between beads.	Bad Some areas show weld bead too high or too low. Stop and Start show to excessively.	Better 1 section or of weld bead too high or too low.	Best The weld bead is within the standard of flush to 1/8th in height throughout.
Apperance	Failed Ripples uneven and rough. An abundance of: Porosity, Undercut Under fill, Cold roll Slag inclusion, not clean, Welds overrun parameters. Can't distinguish between welds. Not to standard.	Bad Most of the weld is rough and has uneven ripples. Most of the weld has one or all of these items present: Valleys, porosity, undercut, under fill, cold roll, slag present.	Better Some of the weld is rough and has uneven ripples. But is consistent and has little to none of the following: Valleys, porosity, undercut, under fill, cold roll, slag present.	Best Weld is smooth and ripples are evenly spaced. None of the following are present: Valleys porosity, undercut, under fill, cold roll, slag
Instructions/Dimention	Failed Name, Date, Fit up, and plate dimensions: Were not adhered to. Did not follow provided instructions. The student used the wrong material or welded in the wrong position	Bad Name, Date, Fit up, and plate dimensions: Name and info. are in the proper location Fit up needs work not level and gap not consistent. Stagger wrong	Better Name, Date, Fit up, and plate dimensions: Fit up is within the parameters provided, level but the gap is inconsistent.	Best Name, Date, Fit up, and plate dimensions: Are all exact to the instructions and dimensions provided.

Keywords:

SMAW

Subjects:

Vocational

Types:

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