Do you need to grind the top punch of press brake?
The top punch of the press brake machine is specially heat treated within 3mm of the cutting edge, with high hardness, but it will wear out after a long time
Normal wear will blunt and round the tip.
If several punches are worn together, don’t worry temporarily. If a punch is partially worn, several punches should be machined together
Annealing, grinding and quenching.
It’s hard to do this job. You’d better not do it easily.
