General

Before starting the examination, the surface must be cleaned: coating, welding spatter, grease and dirt should be removed. For the determination of the residual wall thickness, in most cases the coating may remain.

Inaudible sound waves will be introduced into the object by means of a sound generator (probe/transducer). These sound waves will be reflected at the location of a defect or geometry. When the sound waves come back to the probe they will be detected, this is called a reflector. In the probe, the received sound will be transformed into an electric signal. Which will be displayed on a screen. The position, shape and height of the signal on the screen will be interpreted by the operator. The assessment will be made on the basis of the required standard and/or specification. The reflector shall be assessed in accordance with the required standard, resulting in acceptable or unacceptable (in case of wall thickness measurement, the wall thickness will be reported).

Ultrasonic testing can be done using different types of probes. A distinction is made between straight and angled probes. In case of angled probes, the generated sound will be directed into the material at a certain angle, whereas for the straight probes the generated sound will be directed into the material perpendicular to the surface. Both groups of probes can be fitted with a combined transmitter and receiver or with separate transmitter and receiver (SE or TR probe).

The most common testing is carried out by transmitting the sound and absorbing the reflection (pulse echo). It is also possible to irradiate an object, in which case transmitter and receiver are (must be) placed on opposing sides of the object. For each application, the best probe choice must be made in order to perform an optimal test.

If the operator has detailed knowledge of the object, knows the manufacturing process and/or is familiar with the conditions of use, this will have a positive effect on the ultrasonic test.

Scope/Products/Sectors

Ultrasonic testing of objects made of various materials for surface and internal defects, (de-) laminations, (fatigue) cracks, determination of (wall) thickness and/or welding defects.

The testing has many application possibilities, but is specifically applied to the following products:

• Cast and forged parts made of aluminium, steel and brass;
• Weld joints of materials with a homogeneous fine structure;
• Plate material of aircraft hull and industrial semi-finished products;
• (Wall) thickness determination in petrochemistry, shipbuilding, aircraft construction and/or food industry;
• De-laminations and deformations in composite parts occurring in aircraft construction, petrochemistry, shipbuilding, windmills, water/gas pipelines and automotive industry;

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Training Information Level 1

For whom

The training is set up and intended for (oncoming) NDT inspectors/operators for whom a qualification and/or certification is required. The course also provides an insight into the working methods of the examination, so that the student can perform the work under the supervision of a level 2 or 3 inspector/operator.

The following components are recommended for course participants:

• A VMBO/LTS prior education or similar.
• Basic knowledge of mathematics.
• Interested in engineering.
• Technical English, to be able to read work instructions.

Structure

The training includes both a theoretical and a practical part. The training time will be divided 40/60 between the theoretical and practical part. During the training, under the supervision of experienced NDT specialists, the student will lay a foundation for future work.

The objectives

• Familiarize the student with the basic principles and the pros and cons of ultrasonic testing.
• Be able, under supervision, to perform ultrasonic testing using different techniques and report the findings.
• Reading and interpreting work instructions and/or detailed procedures (mainly in English).
• Drafting of test reports (test parameters and findings).

Content of the training

Basic knowledge of the NDO methods | Material defects (Defectology) | The certification process-system | Basic principle of ultrasonic testing | Generating & behaviour of ultrasonic sound in material | Test techniques and Image interpretation | Calibration techniques | Equipment and probes while performing ultrasonic testing | Interpretation of obtained notes on the object | Process and quality controls | Safety, environment and health

Practical information

Training duration ISO 9712:
12 days including exam, certification process via Hobéon SKNDO.

Training duration SNT-TC-1A or EN 4179:
10 days including exam, exam report only. Final certification will have to be done by the company through its own Written Practice.

Exams:
The training meets and can be completed with an exam(-s) in accordance with the requirements of ISO 9712 or according to the requirements of the Written Practice of the own company (SNT-TC-1A and/or EN4179). The exam consists of a theoretical (general and specific) part and a practical part. Both the training and the exam(-s) are tailored to the relevant industrial sectors (e.g.: Testing before and during use (including manufacturing), aviation or railway maintenance.)

Costs (Excluding VAT):

In order to be able to provide you as well as possible, we believe that a suitable quotation is desirable. Below is an overview of the different options:

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Training Information Level 2

For whom

The training is set up and intended for (oncoming) NDT inspectors/operators for whom a qualification and/or certification is required. In addition, the training gives a detailed insight into the research, this is supporting information for each work planner, QC/QA & quality manager.

The following components are recommended for course participants:

• A MBO-4 prior education or similar.
• Basic knowledge of mathematics.
• Interested in engineering.
• Technical English, to be able to read standards, specifications & procedures.

Structure

The training includes both a theoretical and a practical part. The training time will be divided 40/60 between the theoretical and practical part. During the course, the student will lay a foundation for his future work under the guidance of experienced NDO specialists.

The objectives

• Familiarize the student with the basic principles and technical background of ultrasonic testing.
• Be able to perform ultrasonic testing using different techniques and interpreting test results.
• Determine the best test technique for conducting the test.
• Be able to draft a thorough work instruction in order to direct a level 1 operator.
• Reading and interpreting procedures and/or specifications (mainly in English).
• Assess whether the identified indications meet the acceptance criteria.
• Drafting of test reports.

Content of the training

Basic knowledge of the NDO methods | Material defects (Defectology) | The certification process | system | Physical basic principle of ultrasonic testing | Generating & behaviour of ultrasonic sound in material | Research techniques and image interpretation | Calibration techniques | Equipment and probes while performing ultrasonic testing | Interpretation of obtained test results | Process and quality controls | Safety, environment and health

Practical information

Training duration ISO 9712:
Full Training (UT2): 17 days including exam, certification process via Hobéon SKNDO.
Measuring wall thickness (UT2-WDCD): 11 days including exam, certification is done via Hobéon SKNDO.

Training duration SNT-TC-1A or EN 4179:
11 days including exam, exam report only. Final certification will have to be done by the company through its own Written Practice.

Exams:
The training meets and can be completed with an exam(-s) in accordance with the requirements of ISO 9712 or according to the requirements of the Written Practice of the own company (SNT-TC-1A and/or EN4179). The exam consists of a theoretical (general and specific) part and a practical part. Both the training and the exam(-s) are tailored to the relevant industrial sectors (e.g.: Testing before and during use (including manufacturing), aviation or railway maintenance.)

Costs (Excluding VAT):

In order to be able to provide you as well as possible, we believe that a suitable quotation is desirable. Below is an overview of the different options:

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Training Information Level 3

For whom

The course is set up and intended for (the oncoming) NDT specialist for whom a qualification and/or certification is required. The course also provides an insight into the working methods of the testing.

The following components are recommended for course participants:

• An MBO-4/HBO prior education or similar.
• Knowledge of mathematics and physics.
• Interested in engineering.
• Technical English, to be able to interpret standards.
• Preferably having already completed the BASIC module with a positive result or be in possession of a level 3 certificate in another method.

Structure

The training includes both a theoretical and a practical part (writing a technical procedure). The training time will be divided 80/20 between the theoretical and practical part. During the training, under the supervision of experienced NDT specialists, the student will lay a foundation for future work.

The objectives

• Familiarity with in-depth physical knowledge of ultrasonic testing.
• Distinction and possibilities of the various test techniques, (e.g.: Pulse echo, tandem, immersion, etc.).
• Basic knowledge of Phased Array and ToFD.
• Application possibilities of special probes, e.g. SEL, RTT, LLT-probes.
• Special/new applications within the field of ultrasonic testing.
• Reading and interpreting certification related standards and/or procedures (mainly in English).
• Able to draft a thorough procedure in order to direct a level 2 operator.

Content of the training

Physical principle of ultrasonic testing | Generating & behaviour of ultrasonic sound in material (including non homogeneous materials) | Behaviour of sound bundles at interfaces | Test techniques and image interpretation | Calibration techniques | Equipment and probes while performing ultrasonic testing (including specific and special applications) | Application possibilities & Latest techniques (Total Focus Method) | Interpretation of codes, standards and/or specifications | Process and quality controls | Safety, environment and health

Practical information

Training duration ISO 9712:
10 days including exam, certification process via Hobéon SKNDO.

Exams:
The training meets, and can be completed with an exam(-s) compliant with the requirements of ISO 9712. The theoretical exam consists of 3 parts:

• Part D: Principles, general knowledge level 3 of the method
• Part E: Techniques & Specifications
• Part F: Procedure Writing

Both the training and the exam(-s) are tailored to the relevant industrial sectors (e.g.: Testing before and during use (including manufacturing), aviation or railway maintenance.)

Costs (Excluding VAT):

In order to be able to provide you as well as possible, we believe that a suitable quotation is desirable. Below is an overview of the different options:

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