This paper introduces the detection technology and quality control method of mechanical forgings. Firstly, the importance and application fields of mechanical forgings are outlined, and then common testing techniques, including visual testing, non-destructive testing and destructive testing, are elaborated. Then the key links of quality control, such as raw material control, process control and product inspection, are discussed. Finally, the application of testing technology and quality control in the production of mechanical forgings is discussed with examples.
Mechanical forgings are the basic parts in the field of mechanical manufacturing, and are widely used in automotive, aerospace, energy, petrochemical and other industries. The quality of forgings directly affects the performance and life of mechanical equipment, so it is of great significance to conduct in-depth research on the detection technology and quality control of forgings.
Mechanical forgings testing technology
Visual inspection: Observe the surface of the forging with the naked eye or a magnifying glass to check whether there are cracks, burrs, oxidation and other defects.
Non-destructive testing: ultrasonic, ray, magnetic powder, eddy current and other methods are used to detect internal defects and organizational structure without damaging the forging.
Destructive testing: Through tensile, impact, hardness and other tests to evaluate the mechanical properties and metallographic structure of forgings.
Mechanical forging quality control
Raw material control: the selection of qualified raw materials, strict control of chemical composition and physical properties to ensure the quality of raw materials.
Process control: Optimize forging process parameters, such as temperature, pressure, time, etc., reduce forging defects and improve forging quality.
Product inspection: The above detection technology is used to conduct a comprehensive inspection of forgings and screen out qualified products.
Taking automobile crankshaft forgings as an example, visual testing and non-destructive testing technology are used in the production process to strictly control the surface and internal defects of the forgings. At the same time, the mechanical properties and wear resistance of crankshaft forgings are improved by optimizing the forging process parameters. The final product is subjected to destructive testing to ensure that it meets the requirements of automotive engine use.
This paper introduces the detection technology and quality control method of mechanical forgings, and discusses its application in production with examples. Through the effective use of these technologies and methods, the quality of mechanical forgings can be improved, the defect rate can be reduced, and the service life of mechanical equipment can be extended, thus promoting the development of related industries. In the future, with the continuous progress and innovation of science and technology, we look forward to seeing more advanced testing technology and quality control means applied in the field of mechanical forgings, contributing to improving the overall level of mechanical manufacturing.
