There are many reasons for the surface quality problems of the stamping parts. The surface quality of the coil, sheet and mold will affect the quality of the final stamping parts, the operation of the stamping process, and the loading and unloading of the station equipment. Surface quality, therefore, in the entire manufacturing process should be fully considered in every aspect of the details, try to avoid the quality problems, affecting the final appearance of the product.
1, roll material common bad phenomenon mainly in the following areas:
(1) the surface of the steel plate or foreign matter mixed with;
(2) foreign body peeling, roll material was scars the same state; bad roll
(3) damage to the corners of the web;
(4) Corner (20 ~ 30mm) due to stress uneven deformation or wrinkle;
(5) scratches (roller surface or foreign matter caused);
(6) roller sliding caused;
(7) irregular edge damage;
(8) foreign body into the back of the roll material in the back of the drum package (foreign matter fell to disappear);
(9) roller traces (foreign matter attached to the roller caused);
(10) Excessive material other than rules;
(11) foreign matter caused by the surface depth to produce significant groove marks.
According to practical experience found that the above content, 5,8,9 is the frequency of the most bad parts of the performance or reasons.

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