Effect of Roller Levelling on Tensile Properties of Aluminum Sheets
The straightening of sheets, bars and profiles plays an important role in many machining processes. The aim of sheet straightening in the rolling mill is to ensure that the deviation of sheets from flatness is within the tolerances specified in the standards or delivery conditions. There is a wide r...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/8/3001 |
| _version_ | 1797604546794487808 |
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| author | Dóra Harangozó Imre Czinege |
| author_facet | Dóra Harangozó Imre Czinege |
| author_sort | Dóra Harangozó |
| collection | DOAJ |
| description | The straightening of sheets, bars and profiles plays an important role in many machining processes. The aim of sheet straightening in the rolling mill is to ensure that the deviation of sheets from flatness is within the tolerances specified in the standards or delivery conditions. There is a wide range of information available on the roller levelling process used to meet these quality requirements. However, little attention has been paid to the effects of levelling, namely the change in properties of the sheets before and after roller levelling. The aim of the present publication is to investigate how the levelling process affects tensile test results. The experiments have shown that levelling increases the yield strength of the sheet by 14–18%, while it decreases its elongation by 1–3% and hardening exponent by 15%. The mechanical model developed allows changes to be predicted, so that a plan can be made regarding roller levelling technology that has the least effect on the properties of the sheet while maintaining the desired dimensional accuracy. |
| first_indexed | 2024-03-11T04:47:50Z |
| format | Article |
| id | doaj.art-a6d02d5948f745408d8e7d1035b8aa89 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:47:50Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-a6d02d5948f745408d8e7d1035b8aa892023-11-17T20:11:43ZengMDPI AGMaterials1996-19442023-04-01168300110.3390/ma16083001Effect of Roller Levelling on Tensile Properties of Aluminum SheetsDóra Harangozó0Imre Czinege1Department of Materials Science and Technology, Széchenyi University, 1 Egyetem tér, 9026 Győr, HungaryDepartment of Materials Science and Technology, Széchenyi University, 1 Egyetem tér, 9026 Győr, HungaryThe straightening of sheets, bars and profiles plays an important role in many machining processes. The aim of sheet straightening in the rolling mill is to ensure that the deviation of sheets from flatness is within the tolerances specified in the standards or delivery conditions. There is a wide range of information available on the roller levelling process used to meet these quality requirements. However, little attention has been paid to the effects of levelling, namely the change in properties of the sheets before and after roller levelling. The aim of the present publication is to investigate how the levelling process affects tensile test results. The experiments have shown that levelling increases the yield strength of the sheet by 14–18%, while it decreases its elongation by 1–3% and hardening exponent by 15%. The mechanical model developed allows changes to be predicted, so that a plan can be made regarding roller levelling technology that has the least effect on the properties of the sheet while maintaining the desired dimensional accuracy.https://www.mdpi.com/1996-1944/16/8/3001roller levellingmechanical modellinear hardeningchange in flow stress |
| spellingShingle | Dóra Harangozó Imre Czinege Effect of Roller Levelling on Tensile Properties of Aluminum Sheets Materials roller levelling mechanical model linear hardening change in flow stress |
| title | Effect of Roller Levelling on Tensile Properties of Aluminum Sheets |
| title_full | Effect of Roller Levelling on Tensile Properties of Aluminum Sheets |
| title_fullStr | Effect of Roller Levelling on Tensile Properties of Aluminum Sheets |
| title_full_unstemmed | Effect of Roller Levelling on Tensile Properties of Aluminum Sheets |
| title_short | Effect of Roller Levelling on Tensile Properties of Aluminum Sheets |
| title_sort | effect of roller levelling on tensile properties of aluminum sheets |
| topic | roller levelling mechanical model linear hardening change in flow stress |
| url | https://www.mdpi.com/1996-1944/16/8/3001 |
| work_keys_str_mv | AT doraharangozo effectofrollerlevellingontensilepropertiesofaluminumsheets AT imreczinege effectofrollerlevellingontensilepropertiesofaluminumsheets |