Tungsten steel punches are plastic mold parts used in plastic molds. Tungsten steel punches can also be called push rods, inserts, middle needles, and needles. Sometimes the tip of a lathe is also cal... read more
Scrap jumping a. The punch length is not enough. Press the punch edge to cut into the die. Add a material thickness and add 1mm to replace the punch. b. The die gap is too large. The cut-in reduces th... read more
The cylinder has a circular through hole or a blind hole in the product, and the glue position must be provided with an ejector metal fitting for ejection. The cylinder is composed of two parts, the c... read more
Insufficient hardness of cold stamping die welding: Reason: (1) When the welding current is too large, the dilution ratio of the mold base material is too large, and the alloying elements of the mold ... read more
The thimble of the mold is generally made of high-speed steel, and then needs heat treatment. At present, there are many grades, commonly used SKD61, SKH51. Its hardness is 50--55 degrees. Surface har... read more
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