FIELD: machine engineering, plastic working of metals, possibly tube bending processes.
SUBSTANCE: method comprises steps of introducing filler into tube cavity; bending tube by drawing it along bending and additional rollers; extracting filler; using as filler rope introduced in tube at constant contact of its surface with inner surface of tube; using shaped rollers as bending rollers; using one shaped roller as forcing roller and spring-loading other shaped roller.
EFFECT: enhanced quality, accurate geometry size of tube due to absence of inner stresses.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BENDING METHOD OF LONG HOLLOW ARTICLES WITH OPEN TYPE PROFILE | 2018 |
|
RU2691478C1 |
| METHOD OF PIPE BENDING AND DEVICE TO THIS END | 2010 |
|
RU2422229C1 |
| APPARATUS FOR BENDING TUBES WITH TENONS | 0 |
|
SU837470A1 |
| THIN-WALL PIPE BENDING METHOD AND RELATED DEVICE | 2007 |
|
RU2354478C1 |
| MANDREL FOR BENDING THIN-WALLED RECTANGULAR WAVEGUIDES | 2021 |
|
RU2775766C1 |
| PIPE BENDING METHOD AND MACHINE FOR METHOD PERFORMING | 2015 |
|
RU2614975C1 |
| 0 |
|
SU545403A1 | |
| METHOD FOR BENDING ELONGATED PRODUCTS WITH OPEN TYPE PROFILE | 2004 |
|
RU2262404C1 |
| TUBE BENDING MACHINE BENDING HEAD | 0 |
|
SU772648A1 |
| METHOD FOR PIPE BENDING, AND MACHINE FOR METHOD IMPLEMENTATION | 2020 |
|
RU2774676C2 |
