FIELD: process engineering.
SUBSTANCE: invention relates to metal forming. Proposed device comprises container, male die with press washer, female die, lubing washer and press needle. Female die is equipped with centering cup. One end of press needle is fixed in press washer while another one is located in centering cup. Extra male die is arranged inside male die to move therein. Also, proposed device comprises cylindrical extension. Said extension may be arranged inside male die to extrude extrusion cake. Diameter of said extension equals OD of extra make die. Press washer accommodates smaller press washer with its diameter equal to smaller ID of female die that forms hollow profile. Press needle is secured in smaller press washer on one side and, on the opposite side, extra male die is secured.
EFFECT: complete extrusion of hollow profile without cake formation and higher yield factor.
2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HOLLOW CHANNEL PRESSING METHOD, AND DEVICE FOR ITS IMPLEMENTATION | 2013 |
|
RU2535831C1 |
| METHOD OF ROLLING AND FORMING HOLLOW SECTIONS AND DEVICE TO THIS END | 2011 |
|
RU2457051C1 |
| METHOD OF MAKING HOLLOW-PROFILE METAL ARTICLES | 2012 |
|
RU2509617C1 |
| DEVICE FOR PRESSING PRECISION PIPES AND METHOD OF PRESSING PRECISION PIPES USING SAME | 2015 |
|
RU2608110C1 |
| PIPE PRESSING METHOD AND APPARATUS | 1996 |
|
RU2094148C1 |
| DEVICE TO MANUFACTURE PIPES WITH INTERNAL SPIRAL RIBS | 2014 |
|
RU2554261C1 |
| METHOD OF MANUFACTURING SEAMLESS TUBES FROM CYLINDRICAL BILLETS OF HARD-TO-DEFORM METALS AND ALLOYS | 2016 |
|
RU2650474C2 |
| METHOD OF PRESSING TUBES FROM HARD-DEFORMABLE MATERIALS | 0 |
|
SU845929A1 |
| TUBE EXTRUSION METHOD | 2000 |
|
RU2184633C2 |
| METHOD FOR EXTRUDING SHORT-LENGTH TUBES | 2001 |
|
RU2208490C2 |
