Stamping parts after stamping process, because of many reasons will leave some pits, cracks, scratches, package, such as fold marks on the surface of stamping parts processing, stamping parts of the defect that is. Because the pit, package stamping defect is a common defect, so it is not easy to be detected, it is necessary to take the relevant inspection methods. Next, we learn the pit, package inspection about stamping parts together.
Visual inspection: Kona Siyoshi's meaning is through the people's eyes to directly identify the location and type of pit, this method is more convenient than, need to have the actual production experience, we can see. The usual practice is to use a more adequate light, have a certain angle, were observed to identify carefully for parts stamping parts. Because the photosensitive before stamping not spraying degree is relatively poor, so the visual inspection of the difficult, and spraying to the refraction of light is relatively easy to find the surface defects, so the visual inspection for finish stamping parts inspection.
Handle: handle check check method of surface defects of stamping parts in one of the most common and important method. The touch surface stamping parts by using the palm sensitivity, able to perceive the pits and packages exist, but it is more difficult to master, but also need the rich work experience but also the need of training hard. Concrete steps to handle inspection is the palms flat, four fingers close together, putting a hand on the need to check the site, hands must be attached to the surface and stamping parts, reciprocating action on the joint surface with proper strength, touch the convex and concave glance. The advantage of this method is suitable for various parts stamping parts, is not affected by the working environment and light, not too many restrictions, can check out some small craters and package, but it also exists some shortcomings is unable to determine the location and size of the pits, need to assist other tool.
Check method is the most accurate oilstone examination method, can detect defects stamping on the location and size of accurate, changes in the process of repairing defects and inspection.