Small stamping parts, knowledge of GB requirements on dimensional tolerances of stamping parts [hardware]

Small stamping parts are mostly stamping parts with a small size, which require high precision due to their small size. Xiaoshuo compiled the following knowledge about stamping parts for GB stamping standards. Share with you: 'GB/T13914-2002 Dimensional Tolerance of Stamping Parts' specifies the dimensional tolerances of stamping parts. Dimensional tolerances are specified for flat stamping parts and forming stamping parts. The dimensional tolerance value of stamping parts is related to the two dimensions of stamping part size and plate thickness, and on the other hand, it is related to the accuracy level. Flat stamping parts dimensional tolerance: divided into 11 grades, represented by ST1 to ST11, among which ST represents the flat stamping part dimensional tolerance, and the tolerance grade code is indicated by Arabic numerals. From ST1 to ST11, the accuracy level decreases in order. Dimensional tolerance of forming stamping parts: forming stamping parts are divided into 10 precision grades, which are represented by FT1 to FT10, where FT represents the dimensional tolerance of forming stamping parts, and the Arabic numerals indicate the tolerance level. From FT1 to FT10, the accuracy grades decrease in order. The limit deviation of stamping parts: the hole size press deviation is 0, the upper deviation is the lower deviation plus the dimensional tolerance; the shaft size specifies that the upper deviation is the basic deviation, the value is 0, and the lower deviation is the upper deviation minus the dimensional tolerance. The upper and lower deviations of the distance between the holes, the edge distance of the holes, the length of bending and drawing, the height, etc. are stipulated as half of the dimensional tolerance. Hardware, 15 years of ingenuity focusing on small stamping parts, 20,000+ sets of mold customization production experience, monthly processing capacity of 100+ sets of molds, daily production capacity of 3 million punches, stamping accuracy up to 0.01mm, and 16 quality inspections. It can quickly solve time-critical problems for you, solve stamping accuracy problems, and solve production quality problems. Choose, choose rest assured!