This part of YC/T 234 specifies the types and dimensions of punching holes in thin flat plates. This section applies to the design and manufacture of thin plate punching. The punched profiles listed in this section can be made of steel and brass plates with a material thickness of no more than 4mm, as well as aluminum plastic alloys and pure aluminum plates with a certain tensile strength. For the calculation of punching force, please refer to formula (1) in YC/T 234.2-2007.
YC/T 234.1-2007 history
2007YC/T 234.1-2007 Structural main factors for sheet metal stamping parts- Part 1: Hole