| 摘要 |
A fine blanking device characterized by a trough structure is provided. Preferably, the fine blanking device comprises a punch, a mother die module having a first die cavity allowing the punch to enter therein, and a blank-holder module having a second die cavity allowing the punch to enter therein; wherein one or more trough structures are formed on/individually formed on the mother die module or/and the blank-holder module, wherein the trough structure is formed, surrounding the first die cavity, on the mother die module at a sheet stock contacting side thereof; or/and the trough structure is formed, surrounding the second die cavity, on the blank-holder module at a sheet stock contacting side thereof. |
