On the appearance of stamping parts, we are through the following points to view.
     Usually outside the appearance is divided into three kinds, A-level, B-level, C-level. We are so bound to say. The so-called A-level is the customer often see the face. Such as the panel, the appearance of the chassis, the front, out to the customer parts and so on. B-level refers to the case of non-moving, the customer can see the face, such as the rear side of the chassis, the side, top or equal surface. And C-level refers to the goods in the mobile or open to see when the surface, such as the bottom of the chassis, the appearance of internal parts and so on. See below for details

     We all inspection are in the normal lighting for the 40W fluorescent light (equivalent to 80-120LUX light), the inspectors are also requested, check the eyes of the eyes must be corrected for more than 1.0, the process will not use the magnifying glass, Check the appearance and the human eye to take the normal investigation point of view ± 45o angle, the interval of 300mm. A level in the inspection should be rolled to obtain the maximum reflective effect. B-level and C-level in the inspection period without rolling. A-level stay for 15 seconds, B-level stay for 10 seconds, C-level stay for 5 seconds.

Next: How can we ensure the quality of the products processed by precision stamping parts?