Spring inner supporting ring punch

The precision of cemented carbide punch used for precision die is required to be high, as well as the consistency of products. It is required that each punch produced in batch should comply with the dimensional accuracy tolerance requirements, which can achieve a longer service life of the die. The consistency of the product is also critical for the carbide punch used as a supporting tool for the mold. The stamping die work is continuous operation, so the service life of the counter bar becomes the key point. According to the different material and thickness of the stamping, different alloy materials should be selected. Generally, the thicker the pressed product, the better the hardness and toughness of the cemented carbide should be selected.