FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, particularly, to making the frames from rolled sections and tee-beams welded from separate sheets. Bending is carried out at the die by consecutive pressures between which workpiece is displaced to allow maximum tolerable wall necking nearby bending radius. Constraint is applied over the workpiece wall length between die supports while over wall height it is applied from workpiece center of gravity to wall free edge. Note here that said constraint depends on bending force.
EFFECT: higher quality.
3 cl, 2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SECTION BLANK BENDING | 2010 |
|
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| 0 |
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RU2288801C2 |
