Stamping parts: common test method


Release time:

2021-11-12

Wipe the surface of the outer covering with a clean gauze. The inspector should wear a touch glove to touch the stamping surface along the longitudinal side of the stamping. This inspection method depends on the inspector's experience. If necessary, the suspected area can be polished with whetstone and verified, but this method can be regarded as an effective and rapid test method.

Stamping parts: common test method

Test method for stamping parts

1. Touch inspection

Wipe the surface of the outer covering with a clean gauze. The inspector should wear a touch glove to touch the stamping surface along the longitudinal side of the stamping. This inspection method depends on the inspector's experience. If necessary, the suspected area can be polished with whetstone and verified, but this method can be regarded as an effective and rapid test method.

2, whetstone grinding

2.1. First, wipe the surface of the outer covering with clean gauze, and then polish with whetstone (20×20×100mm or larger). The places with circular arc and the places that are difficult to reach are polished with relatively small whetstone (for example, 8×100mm semicircle whetstone).

2.2, the choice of whetstone size depends on the surface condition (such as roughness, galvanized, etc.). Fine-grained whetstone is recommended. The direction of whetstone grinding is basically carried out along the longitudinal direction, and it fits the surface of the stamping part well, and some special places can also supplement the transverse grinding.

Suzhou stamping parts

3. Polishing of flexible mesh

Wipe the surface of the outer covering with a clean gauze. With the flexible sand mesh close to the stamping surface along the longitudinal grinding to the entire surface, any pitting, indentation will be easily found.

4, oil inspection

Wipe the surface of the outer covering with a clean gauze. Then use a clean brush to apply oil evenly in the same direction to the entire outer surface of the stamping. The oiled stamping parts should be inspected under strong light. It is recommended to erect the stamping parts on the body position. With this method, it is easy to find the tiny pitts, dents and ripples on the stamping parts.

5. Visual inspection

Visual inspection is mainly used to find the appearance abnormalities and macro defects of stamping parts

6. Tester detection

Put the stamping parts into the tool, and test the stamping parts according to the operation requirements of the tool manual.

method,longitudinal