FIELD: plastic metal working, namely manufacture of laminate sleeve-type articles. SUBSTANCE: blank of envelope of laminate articles is in the form of hollow double-wall bushing; it has outer and inner cylindrical branch pipes mutually joined through toroidal portion. At one side between outer branch pipe and toroidal portion and at other side between toroidal portion and inner branch pipe there are outer and inner inlet portions in the form of hollow truncated bodies of revolution whose cavities have height-variable diameter. Cavity of outer inlet portion has diameter increasing towards cylindrical branch pipes; cavity of inner inlet portion has diameter decreasing towards cylindrical branch pipes. EFFECT: possibility for reducing deforming effort at initial time moment of calibrating builtup blanks, improved quality of blanks without distortion of their contours. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BLANK OF ENVELOPE OF LAMINATE ARTICLES AND APPARATUS FOR MAKING IT | 2001 |
|
RU2209705C2 |
| METHOD FOR MAKING HOLLOW DOUBLE-WALL SLEEVES AND APPARATUSES FOR PERFORMING THE SAME | 2002 |
|
RU2242310C2 |
| BLANK OF BIMETALLIC ARTICLE ENVELOPE AND APPARATUS FOR ITS EMBODIMENT | 1999 |
|
RU2176569C2 |
| METHOD OF MAKING LAMINATE PARTS SUCH AS SLEEVES AND APPARATUS FOR PERFORMING THE SAME | 1993 |
|
RU2091200C1 |
| METHOD OF BIMETAL PARTS MANUFACTURE | 2006 |
|
RU2336152C2 |
| BUILT-UP BLANKS OF BIMETALLIC ARTICLES CALIBRATION APPARATUS | 2006 |
|
RU2319588C2 |
| BIMETALLIC ARTICLES PRODUCTION METHOD | 2006 |
|
RU2304487C1 |
| LAMINATE PANEL MANUFACTURING METHOD | 2003 |
|
RU2253543C2 |
| PUNCH FOR BACKWARD EXTRUSION OF SLEEVE TYPE ARTICLES | 2003 |
|
RU2240200C1 |
| METHOD OF PRODUCING HOLLOW THIN-WALL ARTICLES WITH LAMINATED EDGE EXPANSION SHAPED AS A RIM | 0 |
|
SU1480956A1 |
