FIELD: plastic working of metals, possibly manufacture of axles of rolling stock by forming and forging.
SUBSTANCE: method comprises steps of deforming initial square cross section blank by forging till intermediate designed size by knocking off faces in order to form semi-finished cylindrical product of forged piece; then feeding semi-finished product of forged piece to hammer die set. Die set is detachable one, it includes two parts with cavities restricting open finish impression without flash grooves. Profile of finish impression of die set corresponds to final size of forged piece. Two compensation openings are arranged in ends of impression. In die set hot die forging of semi-finished product driven to rotation by means of manipulator is realized. Then excess metal on ends is trimmed, forged piece is straightened and cooled.
EFFECT: enhanced quality of forged piece due to providing optimal deforming schedule, lowered power and metal consumption.
4 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HAMMER DIE FOR HOT VOLUMETRIC STAMPING | 0 |
|
SU791445A1 |
| METHOD OF MANUFACTURING A QUALITY FORGING OF A SWIVEL PIN OF A LORRY | 2016 |
|
RU2649627C2 |
| DIE FOR HOT FORCING | 0 |
|
SU1754311A1 |
| METHOD FOR MANUFACTURE OF FORGED PIECE WITH HIGH HUB PORTION HAVING DEEP CAVITY BY MEANS OF HOT STAMPING | 2007 |
|
RU2344897C2 |
| METHOD FOR STAMPING WRENCHES | 2021 |
|
RU2784309C1 |
| METHOD OF VOLUMETRIC STAMPING OF FORGINGS SUCN AS COVERS | 0 |
|
SU902977A1 |
| METHOD FOR MAKING FORGINGS OF CRANK SHAFTS | 2003 |
|
RU2254198C1 |
| DIE FOR OPEN DIE-FORGING WITH AN EXPANDING FLASH BRIDGE | 2020 |
|
RU2756213C1 |
| METHOD OF VOLUMETRIC STAMPING OF T-SHAPED FORGINGS | 0 |
|
SU759189A1 |
| DIE FOR HOT DIE FORGING | 0 |
|
SU1007816A1 |
