Inspection Method Of Stamping Parts

Touch inspection
Wipe the surface of the outer cover with clean gauze. The inspector needs to wear touch gloves to touch the surface of the stamping parts along the longitudinal direction of the stamping parts. This inspection method depends on the experience of the inspector. If necessary, polish the detected suspicious area with an oilstone and verify it, but this method is an effective and rapid inspection method.
Oilstone grinding
1. First wipe the surface of the outer cover with clean gauze, and then polish with an oilstone (20 × twenty × 100mm or more), the places with circular arcs and places difficult to reach shall be polished with relatively small oilstone (for example: 8 × 100mm semi-round stone)
2. The selection of oilstone particle size depends on the surface condition (such as roughness, galvanizing, etc.). Fine grained stone is recommended. The grinding direction of oilstone is basically along the longitudinal direction, and it fits the surface of stamping parts well. Some special places can also be supplemented with horizontal grinding.
Flexible gauze polishing
Wipe the surface of the outer cover with clean gauze. Grind the surface of the stamping parts to the whole surface in a longitudinal direction with a flexible sand screen, and any pitting and indentation will be easily found.
Oiling inspection
Wipe the surface of the outer cover with clean gauze. Then use a clean brush to evenly oil the entire outer surface of the stamping parts in the same direction. Put the oiled stamping parts under strong light for inspection. It is recommended to put the stamping parts vertically on the vehicle body. With this method, it is easy to find tiny pits, pits and ripples on the stamping parts.
Visual inspection
Visual inspection is mainly used to find the appearance abnormalities and macroscopic defects of stamping parts.
Inspection tool
Put the stamping parts into the inspection tool, and test the stamping parts according to the operation requirements of the inspection tool instructions.