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iRubric: GMAW Welding Rubric

iRubric: GMAW Welding Rubric

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GMAW Welding Rubric 
GMAW Welding Rubric
Students will use GMAW welding techniques to weld butt weld, t-weld, lap weld.
Rubric Code: R23ABW4
By Michaelstanley
Ready to use
Public Rubric
Subject: Vocational  
Type: Assessment  
Grade Levels: 9-12

Powered by iRubric Welding Joints
  Advanced

4 pts

Proficient

3 pts

Emerging

2 pts

Beginning

1 pts

Weld width and height:
100 %

Uniform width and thickness throughout the entire length of each weld.
Advanced

Bead is uniform width all along the length of each welld. Has a smooth appearance
Proficient

Bead maintains width and length. Shows some small blemishes along the weld
Emerging

Not a uniform thickness through out the weld. Thickness goes to extremes
Beginning

Weld is cut off in places, not uniform along the weld. Shows bare spots
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
Emerging

Weld shows definite areas of speeding up and slowing down. Ripples tend to be coarse
Beginning

Weld has been done to fast or to slow. Weld is not complete
Face of 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
Emerging

Bead shows many high and low area's. Total lack of uniformity throughout the weld
Beginning

Weld does not blend into one single bead.
Edge of bead
100 %

Good fusion, no overlapping or undercutting
Advanced

Sides and edges are smooth blending into each weld. Undercutting is kept to a minimum, Weld does not float on surface
Proficient

Moderately smooth blending. Undercutting and float are present. Stength of the weld is still strong
Emerging

Float and undercut are very apartent. Weld lacks strength and flow
Beginning

Metal is burned through. Weld has no connection to metal,
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
Emerging

Crater distinctly present at the end of the bead.
Beginning

Metal is burned through at the end
Surrounding Plate
10 %

Welding surface free of spatter
Advanced

Spatter is kept to a minuimum.
Proficient

Some spatter is present but not displeasing
Emerging

Spatter is in large amounts
Beginning

Spatter takes away from the integrity of the weld.
Penetration
100 %

Complete without burn through
Advanced

Weld penetrates deep into the metal and adds strength and fusion to the edges and depth.
Proficient

Weld pentetrates deep but does not re surface through the bottom of a jointed welds
Emerging

Weld is uneven in depth, lacks uniformity along weld length.
Beginning

Weld floats on top of the metal. Has no strength
Measurement
100 %

Measurements and layout procedure was followed.
Advanced

The length and drill hole measurement was followed to tolerance.
.
Proficient

The length and drill hole measurement tolerance was out by a 1/16th of an inch.
.
Emerging

The length and drill hole measurement tolerance was out by 1/8th in.
.
Beginning

The length and drill hole size measurement tolerance was over a 1/4in. out as specified.
layout
100 %

The students were instructed by a diagram how to layout their test pieces.
Advanced

The layout was followed as instructed
Proficient

The layout was followed by two of the test pieces
Emerging

The layout was followed by one of the test pieces
Beginning

The layout was not followed by any of the test pieces.




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