FIELD: hollow part production. SUBSTANCE: apparatus has a punch and a holder in the form of a beam of a ductile material, corresponding by its form to a blank trough. A built-up backing member has a rigid and an elastic portions. The elastic portion is placed between the punch and the rigid portion in a through-out cavity of a die, normal to an axis of the apparatus. A movable container embraces the die, being in its low position, and closes the cavity of the die, into which the blank had been placed. EFFECT: simplified structure of die fitting. 1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND APPARATUS FOR DEEP DRAWING OF HOLLOW SHEET PARTS | 1993 |
|
RU2087230C1 |
| METHOD OF HOLLOW PIECES DRAWING FROM SHEET TYPE METAL | 1991 |
|
RU2023523C1 |
| METHOD FOR FORMING PARTS OF HIGH STRENGTH DIFFICULT-TO-DEFORM SHEET BLANKS | 1991 |
|
RU2020014C1 |
| APPARATUS FOR MULTIPLE STAGE DRAWING OF CYLINDRICAL PARTS | 1991 |
|
RU2090290C1 |
| APPARATUS FOR SHEET TYPE PIECES EXTRUSION | 1991 |
|
RU2023524C1 |
| METHOD TO PRODUCE HOLLOW PIECES | 1991 |
|
RU2023521C1 |
| DIE SET FOR END FORMING OF PARTS FROM HOLLOW BLANKS | 1992 |
|
RU2043808C1 |
| DOUBLE-ACTION HYDRAULIC PRESS | 1991 |
|
RU2013165C1 |
| DEVICE FOR DEEP DRAWING OF HOLLOW PRODUCTS FROM SHEET MATERIAL | 1991 |
|
RU2013164C1 |
| METHOD FOR FORMING HOLLOW PARTS FROM FLAT SHEET BLANKS | 1993 |
|
RU2082524C1 |
