Welds and seams can be checked for weakness or leaks by radiographic testing.
Radiographic testing is a form of material testing that uses electromagnetic waves to check an object for defects. This testing technique can be used on everything from metal to wood, and is particularly effective on things like steel or composite materials. Radiographic testing is a form of non-destructive testing (NDT). During NDT, the material being inspected remains intact and is not subject to cutting, drilling, or other alterations.
The radiographic test involves the use of an X-ray machine.
This test method involves the use of an X-ray machine to send electromagnetic radiation through an object. This is usually done with a portable x-ray machine, but it can also be done with gamma rays. As the photons from these waves enter the object, some of the wave energy is absorbed by the material. Others pass through the object and out the other side. By measuring the changes in these waves as they exit the material, appraisers can check whether the object is flawed.
Radiographic tests provide a lot of information for testing professionals and engineers. It can help verify the thickness of a material as well as its structural composition. Radiographic testing also alerts testers to internal cracks, voids, or air pockets within the material. This type of testing can also point out weaknesses that can lead to failure over time.
One of the main advantages of radiographic testing is that it provides a filmic record of the test results. These results resemble a medical x-ray and can help users evaluate or diagnose the material. Dark spots on the film represent energy that was not absorbed by the material and usually indicate a flaw or defect. These images can be used to repair an item or help users find a more efficient crafting technique. Repeat testing allows users to keep images on file and compare them to detect changes in an object over time.
Radiographic testing represents a popular method for testing welds and seams in metal or composites. Like other non-destructive testing techniques, this test method allows engineers to verify the effectiveness of a weld without disturbing the material. This process is also widely used to inspect building materials, spacecraft, and satellite components.
Those seeking employment in this field should be aware of the potential safety risks associated with radiographic testing. This process exposes workers to dangerous radiation, which can have serious health consequences. All test personnel must be trained and follow proper safety procedures when performing these tests.