FIELD: plastic working of metal, possibly manufacture of complex -shape parts.
SUBSTANCE: method comprises steps of blanking parts having protrusions spaced by pitch from sheet by transitions; basing sheet at each transition beginning from second one along contour of blanked part and moving it by predetermined stroke while shifting sheet normally relative to stroke motion to one side; preliminarily cutting out sheet by angle relative to rolling direction; determining value of said angle according to given formula depending upon pitch value of protrusions of blanked part and motion stroke of sheet. Blanking is realized in die set having punch, die, fixing member with working surface for basing sheet at all transitions, stripper with lateral basic surface. Said surface of stripper is inclined relative to working surface of fixing member for providing shift of contour of blanked part by pitch preset at each transition of blanking operation.
EFFECT: simplified blanking process, lowered cost of used fitting of die set.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PROGRESSIVE MULTIROW BLANKING AND DIE SET FOR PERFORMING THE SAME | 2001 |
|
RU2208494C2 |
| METHOD OF CONSEQUITIVE MULTIROW CUTTING WITH LITTLE WASTE AND THE DIE FOR EFFECTING THE SAME | 0 |
|
SU1175593A1 |
| MACHINE FOR PUNCHING WORKPIECES FROM STRIP MATERIAL | 0 |
|
SU1697941A1 |
| METHOD OF PARALLEL STAMPING COMPONENTS FROM SHEET MATERIAL AND PRESS TOOL FOR EFFECTING SAME | 0 |
|
SU1129002A1 |
| APPARATUS FOR WORKING WEB AND STRIP MATERIAL | 0 |
|
SU1473884A1 |
| PROGRESSIVE DIE FOR MANUFACTURING PARTS HAVING UNBENT MEMBER | 0 |
|
SU1344466A1 |
| BLANKING DIE | 0 |
|
SU1130429A1 |
| DIE HAVING DISENGAGED PUNCHES | 0 |
|
SU1609536A1 |
| APPARATUS FOR PARALLEL STAMPING OF PARTS FROM SHEET MATERIAL | 0 |
|
SU1118457A1 |
| APPARATUS FOR CUTTING-OUT WORKPIECES, PUNCHING HOLES AND PLACING ROD-LIKE ARTICLES INTO SAID HOLES | 0 |
|
SU606661A1 |
