| Autor: |
E.V. SAFRONOV, A.L. NOSKO, R.L. BELENCHUK |
| Rok vydání: |
2021 |
| Zdroj: |
Fundamental and Applied Problems of Engineering and Technology. :45-52 |
| ISSN: |
2073-7408 |
| DOI: |
10.33979/2073-7408-2021-345-1-45-52 |
| Popis: |
The article is devoted to the problem of ensuring the accuracy of manufacturing parts by sheet metal V-bending. An example of using bending in the manufacture of a roller conveyor part is shown. Manufacturing inaccuracy occur due to the deviation of the sheet thickness from its nominal value. A method for determining the maximum inaccuracy of the linear dimensions of the bend depending on the maximum deviation in the thickness of the sheet, based on the difference in the length of the plain workpiece at the nominal and actual values of the sheet thickness, is given. The calculation of the inaccuracy of linear bending dimensions for cold-rolled sheets of normal accuracy BT and hot-rolled sheets of normal accuracy B with a width of 1 to 1.5 m and a thickness of 1 to 15 mm is given. It is shown that the accuracy of each bend for cold-rolled sheets is within ±0.18...±0.38 mm; the accuracy of hot-rolled sheets is ±0.35...+1.32/-0.58 mm. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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