Do you know the inspection methods of automobile stamping parts?

2023-02-07 09:11:45

1、 Touch test: wipe the surface of the outer cover with clean gauze. The inspector needs to wear touch gloves to touch along the longitudinal direction of the automobile stamping parts and close to the surface of the stamping parts. This inspection method depends on the inspector's experience. If necessary, polish the detected suspicious area with an oilstone and verify it, but this method is an effective and rapid inspection method.

2、 Polishing of oilstone: 1. Wipe the surface of the outer covering with clean gauze first, and then polish with oilstone. Use relatively small oilstone to polish the places with arc and hard to reach. 2. The selection of oilstone grain size depends on the surface condition. 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.

3、 Flexible gauze polishing: clean the surface of the outer covering 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.

4、 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.

5、 Visual inspection; Visual inspection is mainly used to find the appearance abnormalities and macroscopic defects of stamping parts.

6、 Inspection of inspection tool: put the stamping parts into the inspection tool, and inspect the stamping parts according to the operation requirements of the inspection tool manual.

7、 Production safety: In actual production, process tests similar to the stamping process are often used, such as drawing performance test, bulging performance test, to check the stamping performance of materials, to ensure the quality of finished products and high qualification rate.