FIELD: plastic working of metals, possibly control systems of forming presses at performing drawing operations.
SUBSTANCE: method comprises steps of clamping edge of sheet blank along its whole diameter between die and holder; acting upon central portion of blank by means of punch; from time moment of beginning blank deformation measuring current values of drawing effort and die movement relative to punch while continuously changing clamping effort of blank edge depending upon measured values according to relation set experimentally.
EFFECT: possibility for making articles with maximum drawing depth at the same other conditions.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PRESSURE CONTROL HYDRAULIC UNIT | 2020 |
|
RU2730560C1 |
| PRESS HYDRAULIC DRIVE | 2003 |
|
RU2250828C1 |
| METHOD OF HYDRAULIC AND MECHANICAL DRAWING OF SHEET BLANKS | 0 |
|
SU1750801A1 |
| HYDRAULIC DRIVE OF PRESS MOVING BEAM | 2013 |
|
RU2515779C1 |
| HYDRAULIC DRIVE OF STRAIGHTENING-STRETCHING MACHINE FRONT HEAD | 2013 |
|
RU2536734C1 |
| PULSATION TYPE HYDRAULIC DRIVE OF RADIAL FORGING MACHINE | 2003 |
|
RU2241565C1 |
| HYDRAULIC DRIVE OF PRESS MOVING BEAM | 2015 |
|
RU2602934C1 |
| HYDRAULIC DRIVE OF PRESS MOVING BEAM | 2013 |
|
RU2528282C1 |
| METHOD FOR CONTROLLING PULSATORY HYDRAULIC DRIVE OF RADIAL FORGING MACHINE AND RADIAL FORGING MACHINE | 2002 |
|
RU2230622C1 |
| METHOD OF CONTROL OF MULTI-SPACE HYDRAULIC CYLINDER | 2005 |
|
RU2282761C1 |
