The maintenance of metal stamping tools

Today we’d like to introduce some precautions of punches and dies when the maintenance of stamping stamping manufacturing


1:We should pay attention to the original conditions of the molds when disassemble or assemble the punches and dies .It is convenient to load the mold later.

2:If adding the lips or shifting ,we should mark the thickness in the spare parts and make good records.

3:Before replacing the punches ,it is necessary to make sure whether the punching die can be fit perfectly .and check the clearance between insert punch and die block is smooth and uniform.

4: After repairing the punches by grinding,the length of the punch will be shorter,so we need to add the clips to achieve the effective length.

5: If changing the broken punch ,we should find out the reasons and check whether it is caused by clipping in the dies,if yes ,when assemble the punch and die ,whether there’s enough gaps .

6:We should place the die in a flat level when assemble the dies,then knock the surface of the dies by copper rods. Never place the dies in a inclined direction with large strength.There must be chamfer under the bottom of dies,in order to check whether it’s in the same level after assembly.

7: After assemble the punch ,die and other mold accessories,we should check whether all parts are installed wrong or installed backwords ,check the taper is traffic or not,check whether the new replacement parts need to reduce the material .Check he mold part which is need to be locked ,check the screw of the mold plate ,check the part whether is locked from the inside to the outside.