The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process
Springback in sheet metal forming processes is a phenomenon that makes it difficult to obtain products with the desired geometry. This paper presents the results of research on the effect of the blankholder pressure on the elastic deformations of sheets during the forming of strip specimens (50 mm w...
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| Format: | Article |
| Language: | English |
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The Publishing House of the Rzeszow University of Technology
2024-12-01
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| Series: | Advances in Mechanical and Materials Engineering |
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| Online Access: | https://journals.prz.edu.pl/amme/article/view/1826 |
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| author | Romuald Fejkiel |
| author_facet | Romuald Fejkiel |
| author_sort | Romuald Fejkiel |
| collection | DOAJ |
| description | Springback in sheet metal forming processes is a phenomenon that makes it difficult to obtain products with the desired geometry. This paper presents the results of research on the effect of the blankholder pressure on the elastic deformations of sheets during the forming of strip specimens (50 mm wide and 400 mm long) into U-shaped components. A special die was developed for the forming of sheet metals under variable blankholder pressure conditions in the range between 1 and 3 MPa. Three grades of sheets with significantly different properties were used as the research material: 6063 aluminium alloy, S235JR structural steel and X46Cr13 stainless steel. The research was conducted under dry friction conditions. The elastic deformations of the sheet metal in the U-draw bending process were of a different character in the punch radius and die radius areas. In the area of the punch edge, the springback coefficient decreased with increasing blankholder pressure. This relationship was observed for all the tested materials. In the area of the die edge, a decrease in the value of the bending angle was generally observed in relation to the bending angle in the loaded state. |
| format | Article |
| id | doaj-art-87d8a5d543004aa1823bbe247004eb9c |
| institution | DOAJ |
| issn | 2956-4794 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | The Publishing House of the Rzeszow University of Technology |
| record_format | Article |
| series | Advances in Mechanical and Materials Engineering |
| spelling | doaj-art-87d8a5d543004aa1823bbe247004eb9c2025-08-20T03:11:53ZengThe Publishing House of the Rzeszow University of TechnologyAdvances in Mechanical and Materials Engineering2956-47942024-12-0141119520410.7862/rm.2024.17The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending ProcessRomuald Fejkiel0https://orcid.org/0000-0002-1339-2731Department of Mechanics and Machine Building, The University College of Applied Sciences in Krosno, ul. Wyspianskiego 20, 38-400 Krosno, PolandSpringback in sheet metal forming processes is a phenomenon that makes it difficult to obtain products with the desired geometry. This paper presents the results of research on the effect of the blankholder pressure on the elastic deformations of sheets during the forming of strip specimens (50 mm wide and 400 mm long) into U-shaped components. A special die was developed for the forming of sheet metals under variable blankholder pressure conditions in the range between 1 and 3 MPa. Three grades of sheets with significantly different properties were used as the research material: 6063 aluminium alloy, S235JR structural steel and X46Cr13 stainless steel. The research was conducted under dry friction conditions. The elastic deformations of the sheet metal in the U-draw bending process were of a different character in the punch radius and die radius areas. In the area of the punch edge, the springback coefficient decreased with increasing blankholder pressure. This relationship was observed for all the tested materials. In the area of the die edge, a decrease in the value of the bending angle was generally observed in relation to the bending angle in the loaded state.https://journals.prz.edu.pl/amme/article/view/1826elastic propertiesbendingsheet metalsheet metal formingspringback |
| spellingShingle | Romuald Fejkiel The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process Advances in Mechanical and Materials Engineering elastic properties bending sheet metal sheet metal forming springback |
| title | The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process |
| title_full | The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process |
| title_fullStr | The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process |
| title_full_unstemmed | The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process |
| title_short | The Effect of Blankholder Pressure on the Amount of Springback in the U-Draw Bending Process |
| title_sort | effect of blankholder pressure on the amount of springback in the u draw bending process |
| topic | elastic properties bending sheet metal sheet metal forming springback |
| url | https://journals.prz.edu.pl/amme/article/view/1826 |
| work_keys_str_mv | AT romualdfejkiel theeffectofblankholderpressureontheamountofspringbackintheudrawbendingprocess AT romualdfejkiel effectofblankholderpressureontheamountofspringbackintheudrawbendingprocess |