iRubric: GMAW/SMAW/FCAW Welding Rubric

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GMAW/SMAW/FCAW Welding Rubric

Students will use welding techniques to weld fillet welds on mild steel plate of the determined thicknesses (1F, 2F, 3F and 4F positions)

Rubric Code: AX9WW5W

By LSC_WLDG_CRED

Ready to use

Public Rubric

Subject: Vocational

Type: Assessment

Grade Levels: Undergraduate

Welding Joints
	Advanced 14.3 x 7 = 100.1 14.3 pts	Proficient 12.6 x 7 = 88.2 12.6 pts	Basic 11.2 x 7 = 78.4 11.2 pts	Below Basic 8.00 x 7 = 56 8 pts	Total Points (N/A)
Weld width and height:	Advanced Bead is uniform width all along the length of each weld. Has a smooth appearance, with ripples in a tightly woven pattern. No excessive build up, and no deviation of the line.	Proficient Bead maintains width and length. Shows some small blemishes along the weld, some inlets at the toe.	Basic Not a uniform thickness throughout the weld. Thickness goes to extremes then diminishes to below standard with. Electrode dictates a	Below Basic Weld is cut off in places, not uniform along the weld toe. Shows bare spots, holes, and discontinuities. Slag in any amount qualifies for this score regardless of the other attributes.	Total Points
Travel and heat input:	Advanced Weld shows a constant speed and correct heat application with acceptable HAZ	Proficient Weld shows a constant speed with some but is run too cold causing excessive height to bead profile.	Basic Weld shows definite areas of speeding up and slowing down. Ripples tend to be coarse and exceed the bead overlap distance. Weld has peaks along the middle ridge of the bead showing excessive heat used or travel speed was to slow, a secondary cause could be lack of cooling between welds. globular appearance is visable.	Below Basic Weld beads are not acceptable, have to many flaws and discontinuities unable to decipher speed, heat input, or cold.	Total Points
Weld Face	Advanced Has a nice con vex or concave look. is not high, nor low. Bead covers proper overlap distance, and tie-ins.	Proficient Bead is well developed and somewhat consistent in profile. Be it round, flat, or concave, mostly uniform over the length of the weld. Shows some high spots and low spots	Basic Bead shows many highs and low area's. Total lack of uniformity throughout the weld, but weld definition still visible.	Below Basic Weld does not blend into any formation of a bead, cannot distinguish between beads one single bead.	Total Points
Toes of Welds	Advanced Sides and edges are smooth blending into each weld. Proper fusion apparent. Undercutting is kept to a minimum, Weld does not float on surface	Proficient Moderately blended. Float in some areas may be present. Enough fusion to believe strength of the weld is not compromised. undercut or under-fill is present in few occurrences.	Basic Float and undercut are very apparent. Weld lacks strength and fusion	Below Basic Metal is burned through, or weld has no connection to metal,	Total Points
Good Start and clean finish	Advanced End of each weld is complete, the line doesn't taper off or stop abruptly proper finishing technique present. No outside weld zone arc strikes.	Proficient Weld ending is full but shows some tapering and a crater present. Re-start is noticeable and lacks in proper connectivity to previous bead.	Basic Crater distinctly present at the end of the bead and arc strikes present, also areas of difficulty with arc strikes are present along with some remaining slag.	Below Basic Complete metal burned through at the end of weld. Also, bay see excess distance between starts and stops.	Total Points
Surrounding Plate	Advanced Spatter not present on weld or plate or weld surroundings.	Proficient Some spatter is present but not displeasing, or hard to remove just lack of motive to remove it.	Basic Spatter is in large amounts, a mix of soft and hard spatter, covering weld and plate.	Below Basic Spatter takes away from the overall appearance of the weld excessive and the weld. May have underlying discontinuities. Problem may be angel of distance to weld surface.	Total Points
Fusion	Advanced Weld toes on all beads present and visible show acceptable fusion and lack discontinuities.	Proficient Weld Fusion appears deep enough although visible due to minor undercut and or under-fill discontinuities.	Basic Weld is uneven in depth, lacks uniformity along weld length. Toes are over run with inlets and slight undercut or under-fill.	Below Basic Weld floats on top of the metal (worm like). Has no strength and lacks almost complete fusion.	Total Points

Subjects:

Vocational

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