We will meet a lot of difficult problems in the cold stamping mold welding, which requires us to make accurate judgment for the fault in the professional point of view, such as its causes and countermeasures. We should introduce is insufficient hardness of cold stamping die welding.

The causes of this phenomenon:

(1) when the welding current is too large, the dilution rate of the die base material is too large, and the alloy elements of the die base are damaged.
(2) when welding preheating temperature and interpass temperature control. In the face of some fault not described above, we need to deploy the corresponding countermeasures to their own reasons through technical means to find the fault occurred after troubleshooting. Countermeasures: as far as possible the use of small current, short arc welding, welding electrode when the amplitude of the swing is not greater than 1.5 times the diameter of the electrode.