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Welcome to NDT Inspect's ultrasonic testing (UT) group, a place for professionals to connect and discuss the latest techniques and technologies in ultrasonic inspection.
UT is a non-destructive testing method that uses ultrasonic waves to inspect the condition of components such as pipelines, tanks, and pressure vessels. It is a versatile and widely used method that can be used to inspect a variety of materials and components, including metals, plastics, and composites.
The UT method involves the use of an ultrasonic probe or sensor to transmit ultrasonic waves through the material of the component and detect any reflections or echoes that are returned. The waveform of the echoes is analyzed to determine the presence and location of any flaws, defects, or other abnormalities within the component. UT is commonly used in a variety of industries, including aerospace, automotive, and manufacturing, to ensure the safety and integrity of components.
Our member group offers a platform for sharing knowledge and best practices on UT and its applications in various industries. Join our community of experts from around the world and be a part of the conversation on advancing the practice of ultrasonic testing. Whether you are new to ultrasonic inspection or an experienced professional, you'll find valuable resources and a welcoming community in our UT group.
Updates
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Görkem Çaya posted an update1 month agoHello everyone,
I have to ask questions related ultrasonic testing process guys. i want to check 316L (material thickness=54 mm) with p355gh material(material thickness= 6,80 mm) is it good ut process if ut process doesnt work which process i can do it ?
thank you
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mikecummings posted an update7 months agoCurrently seeking employment anywhere within the San Francisco Bay area certified asnt ISQ level 2 UT
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michaelraj07 replied to a discussion1 year agoBelow 👇 8mm thickness job can't find out the default ( Near field effect) so can't find orignal default above 8mm AWS method 70' probe👍4 -
jameswilson posted an update1 year agoUltrasonic Testing Resource
Check out this useful page covering UT techniques, standards, and services. Great reference for both beginners and professionals!
👉 https://www.vegascg.com/ultrasonic-testing/👍1 -
kishan posted an update1 year agoHi anyone can help me to find UT job please...
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Hi
Can anyone help to find out if there is a procedure that allows a conventional ut control on a thickness below 8mm with standard probes?
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3 years agohi ,
mahmoud is new member
kindlly any one share photo and defect name for UT appear on screen
thx
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NDT-Inspect started the discussion What Ultrasonic thickness testing report should include? in the forum Ultrasonic Testing3 years agoIdentifying information: This should include the name of the company or organization performing the inspection, the name of the individual performing the inspection, and the date of the inspection.
Description of the test object: This should include a detailed description of the object being tested, including its material, dimensions, and any other relevant characteristics.
Inspection method: This should describe the specific ultrasonic thickness testing method used, as well as any equipment or tools used during the inspection.
Test results: This should include a detailed list of the thickness measurements taken, along with the location on the object where each measurement was taken.
Conclusions: This should include any conclusions or observations made by the inspector based on the test results, as well as any recommendations for further action or follow-up.
Images or drawings: If applicable, the report should include photographs or drawings of the object being tested, as well as any relevant details or annotations.
Certification: The report should include a statement indicating that the inspection was performed in accordance with relevant standards and guidelines, and that the results are accurate and reliable.
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3 years ago
What is ultrasonic testing? Ultrasonic testing is a non-destructive testing method that uses high-frequency sound waves to examine the integrity of a material or component.
What are the three main types of ultrasonic testing? The three main types of ultrasonic testing are pulse-echo testing, through-transmission testing, and immersion testing.
What is pulse-echo testing used for? Pulse-echo testing is used to detect surface and near-surface defects in a material or component.
What is through-transmission testing used for? Through-transmission testing is used to detect defects that are deeper within a material or component.
What is immersion testing used for? Immersion testing is used to detect defects in large, flat surfaces or in materials with poor surface conditions.
What is the frequency range of ultrasonic testing? The frequency range of ultrasonic testing is typically between 0.1 and 25 MHz.
What is the speed of sound in steel? The speed of sound in steel is approximately 5,500 meters per second.
How does the temperature of a material affect its ultrasonic testing? The temperature of a material can affect its ultrasonic testing by altering the speed of sound in the material.
What are the three main factors that can affect the accuracy of ultrasonic testing? The three main factors that can affect the accuracy of ultrasonic testing are the skill of the operator, the quality of the equipment, and the condition of the test surface.
What is a couplant used for in ultrasonic testing? A couplant is a liquid or gel that is used to improve the transmission of ultrasonic waves between the transducer and the test object.
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3 years agoAn ultrasonic technique sheet is a document that provides detailed instructions for performing an ultrasonic testing procedure. The technique sheet typically includes information about the test specimen, the test location, the test equipment, and the test parameters that should be used for the specific application.
The technique sheet may also include detailed instructions for setting up the ultrasonic testing equipment, preparing the test specimen, and performing the ultrasonic scan. It may also provide guidance on how to analyze the data collected during the scan and generate a report documenting the results of the test.
Ultrasonic technique sheets are commonly used by operators of ultrasonic testing equipment to ensure that the test is performed correctly and consistently. The technique sheet provides a step-by-step guide to the testing process, allowing the operator to follow the instructions carefully and ensure that the test is performed accurately and reliably.
In addition to providing detailed instructions for performing the ultrasonic test, the technique sheet may also include information about the limitations and limitations of the test, as well as any potential safety hazards that may be associated with the test. This information can help the operator to understand the capabilities and limitations of the ultrasonic testing equipment, and to take appropriate precautions to ensure the safety of the operator and others in the vicinity.
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Douglas started the discussion Ultrasonic Testing Procedure what should be included in it. in the forum Ultrasonic Testing3 years ago
An ultrasonic testing procedure typically includes the following steps:
Preparation: Before starting the ultrasonic testing, the operator must ensure that the test equipment is in good working order and properly calibrated. The operator must also familiarize themselves with the test specimen and the test location, and ensure that the specimen is properly prepared and cleaned.
Setup: The operator must set up the ultrasonic testing equipment, including the transducer, the ultrasonic generator, and any additional probes or accessories. The operator must also select the appropriate test parameters, including the frequency, pulse width, and pulse repetition rate, to ensure that the test is performed correctly.
Coupling: The operator must ensure that the transducer is properly coupled to the test specimen. This may involve the use of coupling gel or other coupling aids to ensure good contact between the transducer and the specimen.
Scanning: The operator must perform the ultrasonic scan of the test specimen, using the transducer to transmit ultrasonic waves into the material and receive the echoes that are reflected back from internal features or defects. The operator must move the transducer in a systematic pattern across the surface of the specimen to ensure that the entire area is covered.
Data analysis: The operator must analyze the data collected during the ultrasonic scan to identify any internal features or defects that may be present in the test specimen. This may involve the use of specialized software or other analysis tools to interpret the data and generate a clear and accurate image of the internal structure of the specimen.
Reporting: The operator must generate a report documenting the results of the ultrasonic testing, including any defects or anomalies that were detected. The report should include detailed information about the test specimen, the test location, the test parameters, and the results of the data analysis.
Overall, the steps involved in an ultrasonic testing procedure are designed to ensure that the test is performed accurately and reliably, and that the results are accurately documented and reported. The specific steps and procedures may vary depending on the specific application and the type of ultrasonic testing being performed.
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NDT-Inspect started the discussion What is minimum defect size Ultrasonic testing can detect? in the forum Ultrasonic Testing3 years ago
The minimum defect size that can be detected using ultrasonic testing depends on a number of factors, including the type of ultrasonic testing method used, the sensitivity of the equipment, the skill of the operator, and the type and condition of the material being tested. In general, ultrasonic testing is capable of detecting defects as small as 0.1 mm in diameter in metals, although smaller defects may be detectable in some cases.
There are several different types of ultrasonic testing methods, each of which has its own capabilities and limitations. Some of the most commonly used ultrasonic testing methods include pulse-echo testing, through-transmission testing, and phased array ultrasonic testing (PAUT).
Pulse-echo testing is the most basic and widely used ultrasonic testing method. It uses a single transducer to both transmit and receive ultrasonic energy, and it is capable of detecting defects that are located on the surface of the material or just below it. Pulse-echo testing can typically detect defects as small as 0.1 mm in diameter in metals.
Through-transmission testing is a more advanced ultrasonic testing method that uses two transducers to transmit and receive ultrasonic energy. This method is capable of detecting defects that are located deeper within the material, and it can typically detect defects as small as 0.05 mm in diameter in metals.
Phased array ultrasonic testing (PAUT) is a highly advanced ultrasonic testing method that uses multiple transducers to create focused beams of ultrasonic energy that can be electronically steered and scanned to inspect a specific area. PAUT is capable of detecting very small defects, and it can typically detect defects as small as 0.01 mm in diameter in metals.
In addition to the type of ultrasonic testing method used, the minimum defect size that can be detected also depends on the sensitivity of the equipment, the skill of the operator, and the type and condition of the material being tested. Higher sensitivity equipment, skilled operators, and good material conditions can all improve the ability of ultrasonic testing to detect small defects.
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NDT-Inspect started the discussion What is and how to calculate Snells law in Ultrasonics? in the forum Ultrasonic Testing3 years ago
Snell's law is a mathematical equation that describes the relationship between the angles of incidence and refraction when light passes from one medium to another. The equation is commonly used in optics and other fields to calculate the angle of refraction, given the angle of incidence and the indices of refraction of the two media.
In ultrasonics, Snell's law is used to calculate the angle of refraction of ultrasound waves as they pass from one medium to another. Ultrasound waves are mechanical waves that travel through a medium by disturbing the particles of the medium and transmitting energy from one particle to another. When ultrasound waves pass from one medium to another, such as from air to water, the angle of refraction can be calculated using Snell's law.
To calculate the angle of refraction of ultrasound waves using Snell's law, the following equation can be used:
n1 * sin(angle of incidence) = n2 * sin(angle of refraction)
where n1 and n2 are the indices of refraction of the two media, and the angles are measured in radians.
For example, if ultrasound waves are incident on the surface of water at an angle of 30 degrees, and the index of refraction of water is 1.33, the angle of refraction can be calculated as follows:
1.33 * sin(30 degrees) = n2 * sin(angle of refraction)
0.2319 = n2 * sin(angle of refraction)
Therefore, the angle of refraction is approximately 12.4 degrees.
Snell's law is a useful tool for predicting the behavior of ultrasound waves as they pass through different media, and it is commonly used in a wide range of applications, including medical imaging and industrial inspection.
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NDT-Inspect posted an update in the group Ultrasonic Testing (UT)3 years ago
Did you know?
Ultrasonic testing was developed by a team of scientists at the National Physical Laboratory (NPL) in the UK during the 1940s. The team, led by Dr. George W. Hasted, was working on ways to measure the properties of materials using high-frequency sound waves.
They discovered that by using frequencies above the range of human hearing, they could create sound waves that could be used to detect and measure the thickness of materials, as well as the presence of internal defects.
This led to the development of ultrasonic testing as a non-destructive testing (NDT) method, which has been widely used in various industries to evaluate the quality and condition of materials.
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NDT-Inspect posted an update in the group Ultrasonic Testing (UT)3 years ago
Ultrasonic testing is a type of nondestructive testing (NDT) method that uses high-frequency sound waves to detect and evaluate defects in materials. The test is performed by applying a high-frequency sound wave to the material using an ultrasonic transducer.
The transducer converts the electrical signals that generate the sound wave into mechanical vibrations, which are transmitted into the material. Any defects in the material, such as cracks, voids, or inclusions, will cause changes in the propagation of the sound wave, which can be detected and evaluated using specialized equipment. Ultrasonic testing is commonly used to inspect metals, ceramics, and composites for defects that could affect the strength and performance of the material.
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