1. Appearance quality inspection:
Check the surface of the die forgings with the naked eye or with the help of a magnifying glass to see if there are any defects such as cracks, folds, scratches, dents, etc. At the same time, check whether there are any impurities such as oxide scale and oil stains that have not been cleaned up on the surface to ensure that the appearance of the forgings meets the basic requirements.
2. Dimensional accuracy detection:
Use measuring tools to measure the key dimensions of die forgings, such as length, width, height, aperture, etc., to verify whether they are within the specified design range. Focus on the dimensions that match other components to ensure accuracy and interchangeability during assembly.
3. Mechanical properties testing:
Samples of die forgings are tested to determine their mechanical properties, such as strength, hardness, and toughness. For example, tensile tests are used to understand the tensile strength of the material, while impact tests are used to assess its impact resistance, ensuring that the performance meets the requirements of use.
4.Internal quality inspection:
Use non-destructive testing technologies, such as ultrasonic testing and radiographic testing, to check for hidden defects such as pores, inclusions, and cracks inside forgings. These internal defects may affect the load-bearing capacity and service life of forgings and require strict inspection.
5. Surface performance testing:
For die forgings that have undergone surface treatment, the adhesion, hardness, and wear resistance of the surface coating are tested. For example, the coating adhesion is checked through a cross-cut test, and the surface wear resistance is evaluated through a wear test to ensure that the surface treatment quality meets the standards.
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