FIELD: sheet stamping. SUBSTANCE: die has punch, matrix with stretching wall and stretching rib and pressure member with stretching wall and stretching rib receiving slots. Stretching rib is positioned behind stretching wall without gap between them so that stretching rib makes continuation of stretching wall. When body part is drawn in die, width and weight of technological margin which is rejected as discard are decreased. As a result size of billet is reduced. EFFECT: increased efficiency and economy of rolled sheets. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF BRAKING SHEET WORKPIECE FLANGE | 0 |
|
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| METHOD FOR DRAWING BASE MEMBERS OF INTRICATE CONFIGURATION | 1992 |
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| DIE SET FOR DRAWING VEHICLE BODY PARTS | 2003 |
|
RU2243051C1 |
