What are the quality standards for aircraft forgings?
The quality standards of aircraft forgings mainly include the following aspects: Material control: The materials used in aircraft forgings must meet the relevant international standards or aviation industry standards. For example, for steel, common standards include ASTM (American Society for Materials and Testing) standards, EN (European Organization for Standardization) standards, and so on. Geometry: The geometry of the aircraft forgings must meet the design requirements and the standards of the relevant institutions. The dimensional measurement of forgings is usually carried out in strict accordance with the precise tolerance requirements to ensure that the forgings can be properly assembled with other components and have good functional performance. Surface quality: The surface of the aircraft forgings should have no obvious defects, such as cracks, bubbles, scars, etc. Common surface defect detection methods include visual inspection, eddy current inspection, ultrasonic inspection and so on. Magnetic particle inspection: For some key parts of the forgings, it is often necessary to carry out magnetic particle inspection to find possible micro-cracks, fatigue damage and other problems. Magnetic particle inspection is a non-destructive inspection method, usually by applying a magnetic field and dispersing magnetic particle powder to observe cracks or defects on the surface of the forging. Chemical composition: Materials for aircraft forgings must meet specific chemical composition requirements. By conducting chemical analysis, it is possible to ensure that the composition of the forging material meets the design and use requirements to provide good mechanical properties and durability. Physical properties: The physical properties of aircraft forgings, such as hardness, strength, toughness, etc., need to be evaluated by corresponding tests. Common physical property tests include tensile test, impact test, torsion test and so on. Strength and reliability: The strength and reliability of aircraft forgings is one of the key indicators. Through a series of strength calculation and analysis, as well as reliability assessment based on material characteristics and loading conditions, it is possible to ensure that the forging can work safely and reliably under different working conditions. The above is the general quality standards for aircraft forgings, the specific quality requirements will vary according to different forgings type, function and use environment, but also need to comply with relevant national and industry standards, such as national standards, international aviation standards (such as AS9100).
