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US 9,573,182 B2Granted
Reprocessed dies
AssigneeTRUMPF Werkzeugmaschinen GmbH + Co. KG
InventorWolfgang Laib
Life of this patent
Estimating the term…
Abstract
A method includes removing material from a die and thereby changing a location of a cutting edge of the die in a punch entry direction and changing a cutting edge cross-section of the die; and assigning a punch and/or a workpiece thickness to the die based, at least in part, on the change in the cutting edge cross-section of the die.
Claims5
A stock of punching tool sets, comprising:
- a plurality of punches having different, respective cross-sections;
- and
- a die having a height measured in a punch entry direction with respect to the die, the die defining an orifice having a smooth wall that extends in the punch entry direction at an acute relief angle and having a cutting edge that forms a cutting edge cross-section,
- wherein a first punch of the plurality of punches having a first cross-section and the die in a predecessor state form a first tool set, the first cross-section of the first punch being smaller than the cutting edge cross-section of the die in the predecessor state, and
- wherein a second punch of the plurality of punches having a second cross-section and the die in a reprocessed state form a second tool set, the second cross-section of the second punch being smaller than a reprocessed cutting edge cross-section of the die in the reprocessed state,
- and wherein the die, in the reprocessed state, has a reprocessed height that is less than the height of the die in the predecessor state, and the reprocessed cutting edge cross-section of the die in the reprocessed state is larger than the cutting edge cross-section of the die in the predecessor state according to the acute relief angle, such that the second cross-section of the second punch is different from the first cross-section of the first punch.
3 more elements
Dependencies are inferred from the claim text.