Procedure for Dye Penetration test on welded joints
Dye penetrant inspection finds hairline cracks
The visible dye penetrant inspection process detects surface connected cracks and other defects, such as circles and holes in all metals.
FIVE BASIC OPERATIONS
Clean the surface
Apply the Dye Penetrant(generally it is pink/red color)
Remove excess Dye penetrant
Apply Developer( Generally it is in white color)
Inspect the surface
In case of porosity in the welding the pink color penetrant shall be oozing above the developer indicating the porosive location.
As you find out the porosive location , make the “v”groove in the porosive area and re do the welding as a corrective method.
Detailed presentation on dye penetration test on welding is attached below.
Dye penetrant inspection finds hairline cracks
The visible dye penetrant inspection process detects surface connected cracks and other defects, such as circles and holes in all metals.
FIVE BASIC OPERATIONS
Clean the surface
Apply the Dye Penetrant(generally it is pink/red color)
Remove excess Dye penetrant
Apply Developer( Generally it is in white color)
Inspect the surface
In case of porosity in the welding the pink color penetrant shall be oozing above the developer indicating the porosive location.
As you find out the porosive location , make the “v”groove in the porosive area and re do the welding as a corrective method.
Detailed presentation on dye penetration test on welding is attached below.
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