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10 Cards in this Set

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Describe the steps involved in a dye penetrant inspection
Surface is cleaned, and then penetrant is applied and allowed to dwell for a specified time. The penetrate is then removed with an emulsifier or cleaner. Once remove, the part is dried then developer is applied. The results are then inspected and interpreted.
Name some tools that are commonly used to assist in making visual inspections of welds
Magnifying glass, flashlight, mirror and possibly a borescope
What are some of the non-destructive testing methods that may be used on aluminum parts?
Visual, dye penetrate, eddy current, ultrasonic testing and radiography.
What process occurs during the preparation stage of a dye penetrant inspection when the penetrating liquid is applied, and then removed from a cracked part?
The penetrant enters the crack by capillary action and remains there until made visible by the developer
A correctly made butt weld will have what bead width and how much penetration?
The bead width should be 3 to 5 times the thickness of the base metal, and there must be 100 % penetration
What are evidence of a cold weld?
A cold weld has rough, irregular edges that are not feathered into the base metal and has variations in penetration amounts
The penetration of a fillet weld should be what percentage of the thickness of the base metal
25 to 50 percent
Describe the basic steps for conducting a magnetic particle inspections
Magnetize the part, then coat the surface with ferromagnetic particles. If a defect or discontinuity is present, the particles align with the discontinuity forming a visible pattern
What is suitable nondestructive method for detecting surface cracks in aluminum castings and forgings?
The dye penetrant inspection method detects surface cracks with equal success on aluminum,
magnesium, brass, copper, and titanium. It can also be used on ceramics, plastics, and glass.
Name some types of non-destructive testing used on non-ferrous materials.
Eddy current, dye penetrant, x-ray, and visual inspection