2016-10-07 19:25:32Customers under the metal stamping parts of the order has been completed, then if we are customers we have no metal stamping parts of the expertise, how to test the quality of metal stamping parts of the finished product? Public fan finishing some of the skills to share to you.
First, touch test
Wipe clean the surface of the outer cover with a clean gauze. The inspector shall wear a touch glove along the longitudinal direction of the stamped piece against the surface of the stamped part. This test method depends on the inspector's experience. If necessary, whetstone can be polished to detect suspicious areas and to verify, but this method is an effective fast test method.
Second, Whetstone grinding
1, first with a clean gauze to clean the outer surface of the cover, and then polished with Whetstone, a place where arc and difficult to reach with a relatively small Whetstone grinding
2, Whetstone grain size depends on the choice of surface conditions. It is recommended to use fine-grained whetstone. Whetstone grinding direction is basically along the longitudinal, and good fit stamping parts of the surface, some special places can also add the horizontal grinding.
Third, flexible gauze grinding
Wipe clean the surface of the outer cover with a clean gauze. With the flexible sand net close to the surface of the stamping parts in the longitudinal grinding to the entire surface, any pitting, indentation will be easily found.
Fourth, oiled test
Wipe clean the surface of the outer cover with a clean gauze. And then with a clean brush along the same direction evenly painted oil to the entire outer surface of the stamping parts. The painted oil press parts under bright light test, the proposed stamping parts erected in the body position. With this method can be easily found on the stamping parts of the small pitting, deflated pond, ripple.
Five, visual inspection
Visual inspection is mainly used to detect the appearance of the stamping parts and macroscopic defects
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