General sheet metal processing accuracy to ensure linear dimensional tolerance in GB/T1804-M, that is, medium grade,
general bending master can ensure to 0.2-0.3mm within the tolerance range, with CNC bending.
The bending coefficient in your factory must be the coefficient value that comes out of the actual operation, rather than the theoretical coefficient.
The different V slots used and the different cutting tools are influential to the bending size, and even the thickness of the materials sent by different plate suppliers is slightly different.
Under the technical department to send you a drawing, if the shape is complex, bending a complete guarantee size too big hold,
can according to the size of a trial fold cut a strip material, and adjust the error after bending was carried out on the products if the operation is proper,
bending mould is complete, management in place, the general numerical control equipment is can reach the level of GB/T1804 - F,
but few of them There are customers with such requirements, the basic encountered only foreign customers to this grade, general domestic, no tolerance, are GB/T1804-M grade requirements.
1. The minimum size of sheet bending c is related to the thickness of the sheet.
A. Sheet thickness of 1mm~3mm shelving size C is 3mm;
B. Sheet thickness greater than 3mm shelving size C is equal to the sheet thickness;
2. Angle square edge bending minimum limit size a min and sheet thickness, bending fillet radius and shelving size. Minimum limit size for square edge bending
