What material is used for the inner guide post of stamping die? What is the hardness?

Hardness: the dimension and shape accuracy of guide posts and guide sleeves above HRC58 shall be strictly controlled within 0.003mm; Especially for the high-rigidity guide post assembly, the arrangement density of steel balls in the steel ball cage is 65438 0.7 times higher than that of the common steel ball cage, which improves the point contact between the guide post and the guide sleeve by 70%.

Stamping die is a special equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in the process of cold stamping, which is called cold stamping die (commonly known as cold stamping die). Stamping is a kind of pressure processing method at room temperature, which uses the die installed on the press to exert pressure on the material to make it separate or deform plastically, so as to obtain the required parts.