Moneke, Matthias ; Groche, Peter (2017)
Counter measures to effectively reduce end flare.
Proceedings of the 20th International ESAFORM Conference on Material Forming. Dublin (26.04.2017-28.04.2017)
doi: 10.1063/1.5007963
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Roll forming is a manufacturing process, whose profitability is predicated on its high output. When roll formed profiles are cut to length, process related residual stresses are released and increased deformation at the profile ends at the cut-off occurs, also known as end flare. U-profiles typically show a flaring in at the lead end and a flaring out at the tail end. Due to this deformation, deviations from the dimensional accuracy can occur, which cause problems during further processing of the parts. Additional operations are necessary to compensate for the end flare, thereby increasing plant deployment time and production costs. Recent research focused on the cause of the residual stresses and it was shown, that a combination of residual longitudinal stresses and residual shear stresses are responsible for end flare. By exploiting this knowledge, it is possible to determine, depending on the flaring of the profile, in which part of the profile residual longitudinal or residual shear stresses are prevalent and which counter measures can specifically counteract the responsible residual stresses. For this purpose numerical and experimental investigations on a U-, Hat- and C-Profile were conducted. It could be shown that overbending and bending back of the profile is most effective in reducing end flare. Another developed method is lowering and elevating the profile to reduce residual longitudinal stresses.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Moneke, Matthias ; Groche, Peter |
| Art des Eintrags: | Bibliographie |
| Titel: | Counter measures to effectively reduce end flare |
| Sprache: | Englisch |
| Publikationsjahr: | 2017 |
| Verlag: | AIP Publishing |
| Reihe: | Proceedings of the 20th International ESAFORM Conference on Material Forming |
| Band einer Reihe: | 1896 |
| Veranstaltungstitel: | Proceedings of the 20th International ESAFORM Conference on Material Forming |
| Veranstaltungsort: | Dublin |
| Veranstaltungsdatum: | 26.04.2017-28.04.2017 |
| DOI: | 10.1063/1.5007963 |
| Kurzbeschreibung (Abstract): | Roll forming is a manufacturing process, whose profitability is predicated on its high output. When roll formed profiles are cut to length, process related residual stresses are released and increased deformation at the profile ends at the cut-off occurs, also known as end flare. U-profiles typically show a flaring in at the lead end and a flaring out at the tail end. Due to this deformation, deviations from the dimensional accuracy can occur, which cause problems during further processing of the parts. Additional operations are necessary to compensate for the end flare, thereby increasing plant deployment time and production costs. Recent research focused on the cause of the residual stresses and it was shown, that a combination of residual longitudinal stresses and residual shear stresses are responsible for end flare. By exploiting this knowledge, it is possible to determine, depending on the flaring of the profile, in which part of the profile residual longitudinal or residual shear stresses are prevalent and which counter measures can specifically counteract the responsible residual stresses. For this purpose numerical and experimental investigations on a U-, Hat- and C-Profile were conducted. It could be shown that overbending and bending back of the profile is most effective in reducing end flare. Another developed method is lowering and elevating the profile to reduce residual longitudinal stresses. |
| Freie Schlagworte: | Roll Forming, End Flare |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Produktionstechnik und Umformmaschinen (PtU) |
| Hinterlegungsdatum: | 25 Okt 2017 08:05 |
| Letzte Änderung: | 26 Nov 2020 10:24 |
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