Die Buttons serve as a counterpart of the punch and provide the opposite cutting edge in the stamping process. As a result, the optimum ratio of shear or burnish to rollover and break of the generated hole can be ensured. During the stamping process, the incurred slug falls through the hole of the die button, also called as slug relief hole.
- Headed Die Buttons
- Headless Die Buttons
Die Buttons can also be divided according to the different type of slug relief holes. The common types are:
- Taper Relief: It is typically used with cams. When utilizing die buttons with counterbore relief, the slugs would tip and jam in the straight relief hole through the non-vertical orientation, which can lead to punch or tool breakage.
- Counterbore Relief: The cylindrical relief hole behind the land prevents slug jamming and ensures an orderly slug falling.
- Straight through Land: The land length extends over the entire length of the die button. These types are often used as guide bushings.
In addition to the standards listed above, DAYTON PROGRESS offers a large number of custom shapes.
DAYTON groups the most widely used variants under the category Die Buttons. This includes die buttons according to ISO 8977, die buttons with tapered relief and die buttons VERSATILE with limited tolerance.
Die Buttons are mounted either in cutting plates, in separate die button retainer or directly in cast iron.
Die Buttons for shaped punches must always be secured against rotation. Anti-rotation flats can be milled on the head or along the entire body of the die button. The standard location of DAYTON PROGRESS key flats for die buttons is at 0°.
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