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iRubric: Elcho GMAW Welding Rubric 1G position

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Elcho GMAW Welding Rubric 1G position 
GMAW Welding Rubric
Students will use GMAW welding techniques to weld butt weld, t-weld, lap weld, in the 1G position.
Rubric Code: MX7X976
By ttgoeks
Ready to use
Public Rubric
Subject: Vocational  
Type: Assessment  
Grade Levels: 9-12

Powered by iRubric Welding Joints
  Level 4

4 pts

Level 3

3 pts

Level 2

2 pts

Level 1

1 pts

Total Points

(N/A)

Weld width and height:
100 %

Uniform width and thickness throughout the entire length of each weld.
Level 4

Bead is uniform width all along the length of each welld. Has a smooth appearance
Level 3

Bead maintains width and length. Shows some small blemishes along the weld
Level 2

Not a uniform thickness through out the weld. Thickness goes to extremes
Level 1

Weld is cut off in places, not uniform along the weld. Shows bare spots
Total Points
Appearance
100 %

Smooth with uniform dense ripples, doesn’t show the bead traveling to fast or slow
Level 4

Weld shows a constant speed and uniformity the entire length
Level 3

Weld shows a constant speed with some blemishes that are minimal
Level 2

Weld shows definite areas of speeding up and slowing down. Ripples tend to be coarse
Level 1

Weld has been done to fast or to slow. Weld is not complete
Total Points
Face of bead:
100 %

Convex, free of voids and high spots, shows uniformity throughout the bead
Level 4

Has a nice rounded look. Is not overly high, or low. Bead covers a wide area of each weld.
Level 3

Bead is well rounded, mostly uniform over the length of the weld. Shows some high spots and low spots
Level 2

Bead shows many high and low area's. Total lack of uniformity throughout the weld
Level 1

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

Good fusion, no overlapping or undercutting
Level 4

Sides and edges are smooth blending into each weld. Undercutting is kept to a minimum, Weld does not float on surface
Level 3

Moderately smooth blending. Undercutting and float are present. Stength of the weld is still strong
Level 2

Float and undercut are very apartent. Weld lacks strength and flow
Level 1

Metal is burned through. Weld has no connection to metal,
Total Points
Beginning and ending full size
100 %

Crater well filled
Level 4

End of each weld is complete, the line doesn't taper off
Level 3

Weld ending is full but shows some tapering and a craterpresent
Level 2

Crater distinctly present at the end of the bead.
Level 1

Metal is burned through at the end
Total Points
Surrounding Plate
10 %

Welding surface free of spatter
Level 4

Spatter is kept to a minuimum.
Level 3

Some spatter is present but not displeasing
Level 2

Spatter is in large amounts
Level 1

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

Complete without burn through
Level 4

Weld penetrates deep into the metal and adds strength and fusion to the edges and depth.
Level 3

Weld pentetrates deep but does not re surface through the bottom of a jointed welds
Level 2

Weld is uneven in depth, lacks uniformity along weld length.
Level 1

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

Measurements and layout procedure was followed.
Level 4

The length and drill hole measurement was followed to tolerance.
.
Level 3

The length and drill hole measurement tolerance was out by a 1/16th of an inch.
.
Level 2

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

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

The students were instructed by a diagram how to layout their test pieces.
Level 4

The layout was followed as instructed
Level 3

The layout was followed by two of the test pieces
Level 2

The layout was followed by one of the test pieces
Level 1

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




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