What problems might arise during stamping of SGCC sheets?

What problems might arise during stamping of SGCC sheets?
During stamping and other processes, the zinc coating can adhere to the die, increasing friction and potentially causing various forming defects.
How can the problem of zinc coating adhering to the die be resolved during SGCC sheet stamping?
You can keep the die clean and smooth, use specialized die materials or coatings, and increase lubrication.
What precautions should be taken when bending SGCC sheets?
SGCC sheets have a thick zinc coating, so the bending radius must be controlled during bending. Generally, a bending radius of 1.5 times the sheet thickness is recommended to prevent zinc cracking and exposed metal.
How can the corrosion resistance of SGCC sheet edges be improved after cutting?
The corrosion resistance of SGCC sheet edges decreases after cutting. Passivation or spray coating can be used to protect the cut edges.
How can cracking caused by work hardening in SGCC sheets be resolved?
Work hardening cracking typically occurs during bending or stamping. This can be addressed by selecting appropriate processing parameters, such as reducing the processing speed and increasing lubrication.