Clean the surface of the outer cover with a clean gauze. The inspector should wear touch gloves and touch the surface of the stamped parts along the longitudinal direction of the car, and this inspection method depends on the experience of the inspector. When necessary, use oilstone to polish the detected suspicious area and verify it, but this method is still an effective quick inspection method.
Clean the surface of the outer cover with a clean gauze. Then use a clean brush to uniformly coat the entire outer surface of the stamped part with oil in the same direction. Place the oil-coated car stamped part under strong light to inspect it. It is recommended to place the car stamped part vertically in the position of the car body. With this method, it is easy to find small bumps, dents, and ripples on the stamping automotive parts.
Clean the surface of the outer cover with a clean gauze. Use flexible sandpaper to grind the entire surface along the vertical direction of the car stamped part. Any bumps or dents will be easily discovered.
First, clean the surface of the outer cover with a clean gauze. Then use an oilstone (20×20×100mm or larger) to grind the parts with arcs and areas that are difficult to reach (e.g., semi-circular oilstones of 8×100mm) with relatively smaller oilstones.
The selection of oilstone granularity depends on the surface condition (such as roughness, galvanization, etc.). It is recommended to use fine-grained oilstones. The direction of oilstone grinding is basically along the longitudinal direction, and it fits well with the surface of the stamping automotive parts. In some special areas, horizontal grinding can also be supplemented.
Visual inspection is mainly used to find the appearance anomalies and macro defects of stamping automotive parts.
Place the auto stamping parts in the gauge and conduct inspections according to the operating requirements in the gauge manual.
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