What are the technical requirements in steel plate and section steel processing?

The blanking process and cold stamping of steel plate and section steel is a kind of processing of steel plate and section steel. We can classify this knowledge as steel plate processing. Therefore, the following knowledge is also the content we need to learn. For this reason, the editor Professionals from Wuxi Huierda are also invited to provide guidance. The details are as follows.

The technical requirements are as follows:
(1) If steel plates and section steels need to be processed, their steel numbers should meet the technical standards of the product drawings.
(2) When rectangular parts are cut, the limit deviation has certain regulations, and the vertical dimension deviation is also required and cannot exceed the regulations.
(3) When parts are cut and punched, the dimensional tolerance cannot be greater than 10% of the thickness of the part. If burrs appear, its limit height cannot be greater than 0.3mm.
(4) If the parts are drawn from steel plates, some other parts can be changed appropriately under the premise of ensuring the basic dimensions, but if the surface affects the assembly, they should be repaired and leveled.

(5) When cutting parts with gas, the verticality of the part's cross-section cannot be greater than 15% of the thickness of the part, the sharp corners can be rounded, but the radius cannot be greater than 2.5mm, and the bumps on the edge of the part cannot exceed 1.5mm, if there is slag Or burrs should be removed.
(6) For manual cutting of parts, the verticality of the section shall not be greater than 15% of the thickness of the part; for underwater cutting of the parts, the verticality of the section shall not be greater than 10% of the thickness of the part.
(7) Fine cutting of parts. When the thickness of the part is less than 8mm, the verticality of the section shall not be greater than 6% of the thickness of the part; when the thickness of the part is 8-14mm, the verticality of the section shall not be greater than 8% of the thickness of the part; When the thickness is 14-20mm, the verticality of the section shall not be greater than 12% of the part thickness.

For their inspection marks, it is stipulated that if the processed or stamped parts of the steel plate and section steel pass the inspection, the quality mark shall be attached to prove that the inspection is qualified.