First of all, the design or processing accuracy of the molds of the automatic punching machines on the shelves of convenience stores and CNC hydraulic punching machines cannot meet the requirements.
Second, the precision of the guide bush of the mold punch is not enough.
Third, the mold gap is too small, it is generally recommended that the total mold gap is 20% to 25% of the material plate thickness
Fourth, the temperature of the punch is too high, mainly due to the overheating of the punch due to the continuous continuous stamping of the same die.
Fifth, the unevenness of the convex and concave molds is not good, including the lack of precision of the mold base and the mold guide assembly and the turret insert, which causes the mold to be poorly neutral.
Sixth, the improper sharpening method of the mold causes the mold to anneal and aggravate the wear.
Contact Person: Mr. Arno Hao
Tel: +8618717894416
