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8 Cards in this Set

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  • Back
describe the steps involved in a Dye penetrant inspection
The surface is Cleaned, and then Penetrant is applied & allowed to dwell for a specified time. Penetrant is then removed with an Emulsifier or Cleaner. once removed, the part is Dried and 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
A magnifying glass, flashlight, mirror and, possibly a boroscope.
what are some of the nondestructive testing methods that may be used on aluminum parts
Visual, Dye penetrant, Eddy Current, Ultrasonic testing & 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 & there must be 100% penetration.
What telltale characteristic 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 %
describe the basic steps for conducting a magnetic particle inspection
Magnetize the part, then COAT the surface with ferromagnetic particles. If a defect is present the particles align with the discontinuity forming a visible pattern