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UA Welder Certification Program. WELD TEST COUPON VISUAL REJECTS. The following photographs are of weld test coupons that were visually accepted by Local Union Authorized Testing Representatives.

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ua welder certification program
UA Welder Certification Program

WELD TEST COUPON VISUAL REJECTS

slide2

The following photographs are of weld test coupons that were visually accepted by Local Union Authorized Testing Representatives.

However, the coupons were subsequently rejected visually for gross weld defects by the UA’s Independent Testing Laboratory.

slide4

Excessive Grinding

Trapped Slag

slide5

Undercut

Trapped Slag

slide6

Cold Lap

Porosity

Underfill

slide7

Uneven Bead Profile

Cold Lap

Underfill

slide8

Uneven Bead Profile

Joint Edge Plainly Visible

Underfill

slide9

Uneven Bead Profile

Porosity

Trapped Slag

slide10

Trapped Slag

Excessive Grinding

Underfill

slide11

Undercut

Porosity

Underfill

slide12

Uneven Bead Profile

Trapped Slag

Underfill

slide13

Trapped Slag

Cold Lap

Underfill

slide15

Trapped Slag

Underfill

slide19

Stainless Steel Coupon

Overheated

Concavity

slide21

Trapped Slag

Underfill