When inspecting the quality of aluminum forgings, multiple indicators need to be considered, including appearance, dimensional accuracy, physical properties, and chemical composition. Here are some practical case studies and common quality inspection standards for aluminum forgings.
- Appearance Surface Inspection The quality of the aluminum forging’s appearance includes surface smoothness, oxide film, and surface defects, among other aspects. For instance, in the aerospace industry, aluminum alloy components require high quality standards. In visual surface inspection, using inspection equipment such as microscopes, aluminum alloy component surfaces were meticulously polished and inspected for burrs, cracks, bubbles, and other flaws, ensuring product quality stability and reliability.
- Dimensional Accuracy Testing Dimensional accuracy of aluminum forgings can be measured using tools such as coordinate measuring machines, image analyzers, and outside diameter calipers. For example, a compressor manufacturer produces aluminum alloy impellers and tests their accuracy. Real-time monitoring using advanced measurement tools performed on the aluminum alloy impeller detects any size deviation, ultimately controlling product accuracy within designated specifications.
- Physical Property Testing Testing for physical properties of aluminum forgings involves impact strength, tensile strength, hardness, and other aspects. For instance, independent third-party quality inspection agencies perform testing on aluminum alloy compressor impellers. Sequential testing of multiple indicators such as tensile strength and hardness is necessary since aluminum forgings are prone to deformation during processing, which affects numerical values.
- Chemical Composition Testing Aluminum forging’s chemical composition significantly impacts its physical properties, so it needs to undergo chemical composition testing during production. For example, world-renowned enterprises that manufacture aviation aluminum alloy materials use multiple techniques to chemically analyze the aluminum materials used. Analysis instruments monitor the element content in real-time, ensuring aluminum alloy material product quality stability and legitimacy.
In summary, when inspecting aluminum forgings’ quality, the focus should be on appearance surfaces, dimensional accuracy, physical properties, and chemical composition. By doing so, stability and reliability of the production and application process can be ensured.
