FIELD: plastic metal working, namely high-accuracy bending of sheet blanks. SUBSTANCE: die set includes die halves and holders mounted with possibility of motion normal relative to direction of stroke of press slide, main and additional mechanisms for moving die halves and holders and mechanism for returning them to initial position. Novelty is use of bent blank as pulling belt in main mechanism for moving die halves and holders. Additional mechanism includes wedge pairs with working planes parallel to walls of ready part. EFFECT: enhanced quality of trough cross section parts, lowered forming efforts due to optimized kinematics of mechanisms for common motion of die halves and blank edges. 1 dwg
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METHOD FOR BENDING TROUGH CROSS SECTION PARTS | 1997 |
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RU2122479C1 |
U-SHAPED BENDING STAMP | 1994 |
|
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DIE FOR EXTRUSION OF PARTS WITH BLIND HOLLOW (VERSIONS) | 1998 |
|
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DIE FOR PRODUCING BRANCH PIPES OF SHEET BLANKS | 0 |
|
SU958003A1 |
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DIE FOR MANUFACTURE OF ARTICLES WITH CAVITY OUT OF BAR MATERIAL | 2002 |
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METHOD OF DRAWING AND DIE FOR DRAWING COMPLEX LARGE-SIZE SHEET BILLET (VERSIONS) | 2009 |
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DIE SET FOR DRAWING IN TRANSFER PRESS | 1994 |
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RU2077402C1 |
METHOD FOR FORMING, MAINLY SHAPES WITH W-LIKE CROSS SECTION | 2004 |
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STAMPING DIE | 0 |
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SU1123787A2 |
Authors
Dates
1998-11-27—Published
1997-01-30—Filed