Liquid Penetrant Testing-Practical Demonstration

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Bharat Asalpara

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This course format is where trainer will explain you the subject via online live session. Date and time are not decided yet but it will be planned within next 2 weeks after you enroll & pay for this course. Get in touch with our team if any clarification is required.

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What you'll learn

1. Perform LPT examinations on non-porous material.

2. Familiar with different techniques and selection of technique of LPT.

3. Be familiar with the different types of material can be tested by LPT. Understand basic Metallurgy related to NDT and the material tested.

4. Be familiar with equipment, instrument and consumable required for performing LPT.

5. Use the different types of penetrant products available to the industry.

6. Understand and recognize the typical surface discontinuities, flaws, or irregularities can be detected by LPT.

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Key topics covered

- This module covers the Practical Demonstration of LPT.

1. Surface conditions and preparation requirements.

2. Pre-cleaning requirements and pre-cleaning methods.

3. Effects of Surface Temperature, Requirements and Verification.

4. PT Technique selection.

4.1 Nature of material and type of discontinuity to be detected.

4.2 Sensitivity requirements.

4.3 Size of shape part under examination.

4.4 Availability of electricity and water.

5. Comparisons of material using sensitivity block.

6. Use of lux meter for light level check.

7. Practical demonstration for welded joints.

8. Practical demonstration for forgings, casting & rolled products.

9. Interpretation and evaluation of indications.

9.1 Relevant indications.

9.2 Non relevant indications.

9.3 False indications/Geometrical indications.

9.4 Codes, Standards and Acceptance Criteria.

|| PT procedure requirements

1. Post examination Cleaning.

2. Requirements of Batch test certificate, MSDS and PDS from Penetrant material manufacturer.

3. Safety and Health.

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Course Details

Liquid Penetrant Testing or Penetrant Testing (PT) is one of the oldest and widely used non-destructive testing methods. The origin of liquid penetrant testing is generally attributed to the inspection of wheel axles in the railroad industry in the 1890s. It is considered an effective NDT method and capable of detection of very small surface breaking discontinuities which cannot be found by direct visual examination in various non-porous materials. It is well suited to the detection of all types of surface cracks, forging laps, surface porosity, laminations, hot tears, cold shuts and similar discontinuities in various product forms. Penetrant testing can be performed on magnetic and non-magnetic materials, metal or non-metals, ceramics etc but does not work well on porous materials. It is extensively used for the inspection of wrought and cast products of both ferrous and nonferrous metals, powder metallurgy parts, ceramics, plastics, glass objects.