With the progress of industrial manufacturing technology, the requirements for product quality are becoming higher and higher. As an important industrial component, the non-destructive evaluation of internal defects of warm forgings is of great significance to ensure product quality and safety. As a common nondestructive testing method, ultrasonic testing plays an important role in the nondestructive evaluation of internal defects in warm forgings. This paper will discuss the principle, advantages and applications of ultrasonic detection, in order to provide reference for relevant people.
Warm forging is an important part of industrial production, widely used in automotive, aerospace, petrochemical and other fields. However, in the manufacturing process of warm forgings, due to the influence of various factors, such as uneven materials, improper setting of process parameters, etc., may lead to internal defects. These internal defects may adversely affect the performance and service life of the product, and even cause safety accidents. Therefore, the non-destructive evaluation of internal defects of warm forgings has important practical significance.
Ultrasonic testing is a non-destructive testing method that uses the characteristics of ultrasonic waves propagating in materials to detect internal defects of materials. The principle is to inject high-frequency ultrasonic energy into the material to be measured through the transmitter, when the ultrasonic meets the defects inside the material, such as cracks, pores, etc., it will produce reflection, scattering and other phenomena. After the receiver receives these reflected and scattered ultrasonic signals, the location, size and nature of the defect can be determined through signal processing and analysis.
Advantages of ultrasonic detection
Non-destructive testing: Ultrasonic testing can be tested without damaging the material, and there is no damage to the material being tested.
High sensitivity: Ultrasonic detection can detect small defects inside the material, with high sensitivity.
Real-time: Ultrasonic detection can display the test results in real time, which is convenient to find and deal with problems in time.
Wide applicability: Ultrasonic detection is suitable for all kinds of materials and shapes of warm forgings, with strong applicability.
Application of ultrasonic detection in non-destructive evaluation of internal defects in warm forging
Crack detection: Crack is one of the common internal defects of warm forging. The location and size of cracks can be effectively detected through ultrasonic detection, which provides a basis for product quality control.
Detection of porosity: porosity is one of the common defects in the manufacturing process of warm forgings. Through ultrasonic detection, the position and quantity of pores can be detected, which provides a reference for the quality control of products.
Detection of inclusions: Inclusions are one of the common defects in warm forgings, which will adversely affect the performance and service life of the product. The location and size of inclusions can be effectively detected by ultrasonic detection, which provides a basis for the evaluation of product quality.
Online monitoring: Through the online ultrasonic detection of the manufacturing process of warm forgings, the manufacturing quality of the product can be monitored in real time, and problems can be found and dealt with in time to ensure the quality stability of the product.
This paper discusses the application of ultrasonic detection in the non-destructive evaluation of internal defects in warm forging. The practice shows that ultrasonic testing has the advantages of non-destructive, high sensitivity, real-time and wide applicability. It can effectively detect internal defects such as cracks, pores and inclusions in warm forgings and provide a basis for product quality control. However, with the continuous progress of industrial manufacturing technology and the complexity of warm forging manufacturing process, higher requirements are put forward for ultrasonic detection technology. In the future, further research and development of more advanced ultrasonic detection technologies and methods are needed to meet the changing market demand and product requirements.
