Aircraft forgings require non-destructive testing during production to ensure their quality and reliability. Non-Destructive Testing (NDT) is a method of assessing the quality of materials and components by detecting internal or surface defects without causing permanent damage to the object being tested. The non-destructive Testing of aircraft forgings mainly includes the following commonly used methods: Ultrasonic Testing (UT) : The use of ultrasonic propagation characteristics to detect defects inside the material. By transmitting ultrasonic waves into the material to be measured, the intensity and time of echoes are detected to determine whether there are defects. X-ray Testing: The penetration of X-rays is used to detect defects inside a material. By shining X-rays on the tested part, and then through the sensor to receive the intensity and energy changes of transmitted X-rays to determine whether there is a defect in the material. Magnetic Particle Testing (MT) : The magnetic field is introduced into the tested part, and then the magnetic powder is sprayed to observe whether there is a magnetic powder accumulation on the surface of the tested part, so as to detect whether the material has cracks or other defects. Liquid Penetrant Testing (PT) : Apply a liquid penetrant to the surface of the part under test and observe if there are any cracks or holes in the surface of the material to detect defects. These non-destructive detection methods can be used in conjunction with each other to improve the accuracy and reliability of the detection. According to different materials, shapes and sizes, the selection of appropriate non-destructive testing methods for evaluation can effectively ensure the quality and safety of aircraft forgings.
