Several points need to be paid attention to when using stamping die
The working parts and surface quality of the die are closely related to the wear resistance, fracture resistance and adhesion of the die, which directly affects the service life of the die, especially the surface roughness value has a great influence on the service life of the die. If the surface roughness is too large, it is likely to cause the phenomenon of stress concentration when the equipment is in operation, and it will lead to cracks between the peak and valley, which will not only affect the durability of the equipment operation, but also affect the corrosion resistance of the workpiece surface, and finally directly affect the accuracy of the use time of the die. Therefore, we need to pay attention to the following points when using the stamping die.
In the process of machining, it is necessary to observe the wear condition of grinding parts. In case of serious burn, it is necessary to strictly control the grinding process conditions and methods (such as hardness, particle size, coolant, feed rate, etc.).
In the process of processing, the surface of the working part of the mold should be prevented from scratches, such as the middle layer, cracks, impact marks and other macro defects.
The manufacturing material of the stamping die needs to be checked whether it is suitable, and the heat treatment process is suitable. For the stamping die, the heat treatment process has a great influence on it. If the temperature is too high, the quenching method and time are unreasonable, the tempering times and temperature are unreasonable, and the elbow is not selected properly, then the die will be damaged after entering the stamping production.
The size and depth of the blanking hole are not enough, which is easy to block the groove and cause damage to the blanking hole.
The design of the spring needs to be appropriate. If the spring force is too small or the height of the uniform sleeve is unequal, the spring will break, the blanking hole will tilt, and serious damage will be caused to the parts.
The punch needs to be properly mounted and the screw strength needs to be appropriate, otherwise the punch will fall off or break.
When the stamping die is used, the position and direction of the parts are not installed correctly, the bolts are not fastened properly, the working height is too low, the guide column is not lubricated enough, the failure of the feeding equipment, the abnormal press and so on will cause the damage of the stamping die.
