FIELD: rolled stock production, possibly manufacture of cold bent angular shapes.
SUBSTANCE: method comprises steps of bending one flange of preliminarily formed angle having thickness S = 0.8 - 1.5 mm along arc of circle of predetermined radius R; simultaneously forming on other flange with width b cross wave-like corrugations of triangular cross section with maximum height H =(5.0 -6.7)S on edge of said flange. Corrugations of corrugated flange are formed at wavelength l determined according to given relation 
.
EFFECT: improved quality of formed shape.
1 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ROLL-FORMED NOTCHED THROUGH ANGLE | 1998 |
|
RU2134224C1 |
| CHANNEL-TYPE BENT SECTION | 1997 |
|
RU2118579C1 |
| BENT SECTION | 1998 |
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| METHOD OF TESTING STEEL | 2006 |
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| METHOD FOR MANUFACTURING OF BENT CHANNEL | 2008 |
|
RU2365447C1 |
| CORRUGATED SHEET PROFILE | 2003 |
|
RU2238815C1 |
