FIELD: plastic metal working. SUBSTANCE: billet in the form of polyhedron with bases having shape of regular polyhedrons is cut away. Semi-finished product is produced from billet with use of combined stretching which later is subjected to direct pressing-out. Punch with ledge between stages having width equal to thickness of semi-finished product produced by combined stretching is used for stretching and direct pressing-out. EFFECT: improved capability to increase depth of produced cylindrical articles. 2 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR MAKING DEEP CYLINDRICAL PRODUCTS OF SQUARE BLANKS | 2005 |
|
RU2317170C2 |
COMMUTATOR BLANK MANUFACTURING PROCESS | 1998 |
|
RU2148288C1 |
METHOD FOR MAKING TUBULAR BLANKS WITH BOTTOM, NAMELY TIE RODS OF WINDSHIELD WIPERS | 2000 |
|
RU2196018C2 |
METHOD FOR MANUFACTURING OF GLASS HOIST GEAR | 2007 |
|
RU2365460C2 |
METHOD FOR PRESSING OUT HOLLOW POLYHEDRAL ARTICLES | 2000 |
|
RU2201310C2 |
METHOD FOR DRAWING BLANKS OUT OF SHEET MATERIAL | 1999 |
|
RU2176572C2 |
FINISH BLANKING METHOD | 2000 |
|
RU2179902C2 |
APPARATUS FOR GUIDING EXTRUDED ARTICLES | 2000 |
|
RU2196019C2 |
METHOD OF BALL PIN MANUFACTURING FROM METAL STRIP | 2006 |
|
RU2327538C2 |
METHOD FOR MAKING GUIDE OF WINDOW RAISER | 2001 |
|
RU2209697C2 |
Authors
Dates
1999-08-27—Published
1997-10-08—Filed