Page 17 - Liquid Penetration Inspection

Diploma in Mechanical Engineering (Material)

LIQUID PENETRATION INSPECTION

www.pis.edu.my

Principles of liquid penetrant inspection

1. Steps for liquid penetrant

2. Common uses for liquid penetrant

3. Advantages and disadvantages
1. It offers flexibility in performing inspection

because it can applied in a large variety of

applications ranging from automotive spark plugs

to critical aircraft components.

2. It can be used to inspect for flaws that break the

surface of the sample: fatigue cracks, quench

cracks, grinding cracks, impact fractures, porosity,

pin holes in welds and lack of fusion along the

edge of the bond line.

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