According to the introduction of forging flaw detection, after the production and processing of forgings, quality inspection should be carried out, and the factory can only be delivered after passing the inspection. Forgings can be inspected in various ways such as surface state inspection and mechanical property inspection. Chemical composition analysis should also be carried out for important parts, key parts or large forgings.

The existence of forging defects, some will affect the quality of subsequent process processing or processing quality, and some seriously affect the performance and use of forgings, and even reduce the service life of the finished parts, endangering safety. Therefore, in order to ensure or improve the quality of forgings, in addition to strengthening the quality control in the process and taking corresponding measures to prevent the occurrence of forging defects, the necessary quality inspection should be carried out to prevent the forgings with defects that have a bad influence on the subsequent process (such as heat treatment, surface treatment, cold working) and the performance of the forgings from flowing into the subsequent process. After the quality inspection, according to the nature of the defect and the extent of the impact of the use of the forging has been taken remedial measures to make it meet the technical standards or use requirements.

Therefore, the quality inspection of forgings in a sense, on the one hand, is to check the quality of the forged pieces, on the other hand, it is to point out the direction of improvement for the forging process, so as to ensure that the quality of forgings meets the requirements of the technical standards of forgings and meets the requirements of design, processing and use.