Dye penetrant testing is a simple inspection method that may be used on any type of material or shape of component.
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Why Choose Liquid Penetrant Inspection (LPI)
Liquid Penetrant Inspection (LPI), a widely utilized nondestructive evaluation (NDE) technique, stands out due to its simplicity and versatility. It is applicable across a broad range of materials, except for extremely rough or porous surfaces.
Commonly inspected materials include:
Applications and Benefits of LPI
In the accompanying image, visible dye penetrant is applied to a highly stressed connecting point to detect potential fatigue cracking. This demonstrates the precision and efficacy of liquid penetrant inspection in identifying structural irregularities across various applications
LPI is adaptable for diverse settings, from examining automotive spark plugs to scrutinizing critical aircraft components.
The inspection process involves applying penetrant materials using methods such as
- Fatigue cracks
- Quench cracks
- Grinding cracks
- Overload and impact fractures
- Porosity
- Laps
- Seams
- Pinholes in welds
- Lack of fusion or brazing along the bond line edge