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Original Research
Chunjian Su
Shandong University of Science and Technology
Corresponding Author
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Warpage is one of the main defects in multi-pass roll forming. It manifests as the horizontal deviation in the sheet flange part after forming, impacting the final quality of the sheet. In this manuscript, we focus on the cap-shaped part of a small section profile. Considering the lack of previous scientific guidance on the distribution of forming angles—angles that lead to warpage defects and other defects reducing the quality of these products—a five-boundary condition distribution function of forming angle is proposed. We propose a mechanism for warpage defects in roll bending of a cap-shaped part based on this five-boundary condition forming angle distribution function. Furthermore, we examine the effects of forming angle, sheet thickness, and material yield strength on the warpage defects by examining the designed fluctuation of the edge wave, ∆z, and the maximum deviation of the profile curves of the flange edge, z', to test this theory, roll bending experiments are compared to simulation.
Keywords
Roll Forming, Warpage, Five-boundary conditions, Forming angle
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CURRENT STATUS: Under Review
Version 1
Posted 11 Feb, 2021
No community comments so far
Editorial decision: Major Revisions Needed
On 04 Apr, 2021
Reviews received
Received 19 Feb, 2021
Editor assigned
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On 27 Jan, 2021
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A new preprint design is coming!
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This preprint is under consideration at The International Journal of Advanced Manufacturing Technology. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Original Research
Chunjian Su
Shandong University of Science and Technology
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 11 Feb, 2021
No community comments so far
Editorial decision: Major Revisions Needed
On 04 Apr, 2021
Reviews received
Received 19 Feb, 2021
Editor assigned
On 03 Feb, 2021
Reviewers invited
Invitations sent on 03 Feb, 2021
First submitted
On 27 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Warpage is one of the main defects in multi-pass roll forming. It manifests as the horizontal deviation in the sheet flange part after forming, impacting the final quality of the sheet. In this manuscript, we focus on the cap-shaped part of a small section profile. Considering the lack of previous scientific guidance on the distribution of forming angles—angles that lead to warpage defects and other defects reducing the quality of these products—a five-boundary condition distribution function of forming angle is proposed. We propose a mechanism for warpage defects in roll bending of a cap-shaped part based on this five-boundary condition forming angle distribution function. Furthermore, we examine the effects of forming angle, sheet thickness, and material yield strength on the warpage defects by examining the designed fluctuation of the edge wave, ∆z, and the maximum deviation of the profile curves of the flange edge, z', to test this theory, roll bending experiments are compared to simulation.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23
The full text of this article is available to read as a PDF.
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