FIELD: plastic metal working, possibly development of manufacturing processes for making bent thin-web symmetrical channel- and trough-type shapes with large sizes of horizontal and lateral flanges. SUBSTANCE: method comprises steps of successive bending of blank at shifting its edge in vertical plane by distances determined according to given formula. Total number N of transitions at rate of profiling up to 20 m/min is determined while taking into account approximation according to next exceeding integer with use of given formula. It prevents edge waviness of shapes during manufacturing process. EFFECT: enhanced quality of shapes, lowered costs of technological preparation of production process and development of manufacturing process. 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MAKING BENT SHAPES HAVING RIGIDITY RIBS IN BOTTOM PART | 2001 |
|
RU2220802C2 |
| METHOD FOR MAKING SYMMETRICAL SHAPES | 2002 |
|
RU2222402C2 |
| METHOD FOR MAKING U-SHAPED SECTION | 2001 |
|
RU2201829C2 |
| METHOD FOR PROFILING THIN-WEB SHAPES AND APPARATUS FOR PERFORMING THE SAME | 2002 |
|
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| METHOD FOR MANUFACTURING OF BENT THIN-WALL WELDED SECTION BARS OF CHANNEL TYPE | 2008 |
|
RU2386508C2 |
| CHANNELS PRODUCING METHOD, MAINLY OF COATED MATERIALS | 2004 |
|
RU2296025C2 |
| DEVICE FOR MAKING THIN-WALLED SECTIONS BY FORMING FLAT BLANKS TO SHAFT | 2005 |
|
RU2286860C2 |
| METHOD FOR PROFILING THIN-WALL SECTIONS OF FLAT BLANKS AT PRELIMINARY SHAPING STAGE AND UNIVERSAL APPARATUS FOR PERFORMING THE SAME | 2005 |
|
RU2300436C2 |
| METHOD FOR SHAPING BENT TROUGH LIKE SECTIONS | 2004 |
|
RU2256524C1 |
| METHOD OF MAKING U-SHAPED BENT SECTIONS | 0 |
|
SU1755995A1 |
