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.
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Research Article
Chuntian Xu
Liaoning Institute of Science and Technology
Corresponding Author
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The peak strain (PS) of sheet metal highly affects the process design and the quality of roll formed product. Different from the traditional roll forming technology (RFT) that all the cross section contours of the product are rolled simultaneously, a symmetric RFT is developed with respect to the corrugated channels under the study to avoid defects like tearing, twist and redundant deformations. The behaviors of their peak strains are subsequently simulated with Finite Element (FE), and the effects of three factors of the rolling speed, friction coefficient and the bending angle of roll are analyzed, respectively. Finally, both the rationality of RFT and the accuracy of final rolled product are verified by experiments. Results show that for two roll forming channels at the same time, even under the equal bending angles and the pressures of rolls, their maximum peak strains are also distinguished for their different channel widths. The maximum PS of the narrow channel is significantly larger than that of the wide, and the closer to the middle channel, the greater the PS of the narrow channel, which is on the right of bending angle of the trough. Moreover, the maximum PS is dominant by the friction coefficient and bending angle of the first forming pass. This can provide a reference in the design of RFT and improving the quality of the final rolled corrugated channels.
Keywords
Asymmetric corrugated channels, Roll forming technology, Finite element simulation, Peak strain
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Posted 08 Jul, 2021
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Editorial decision: Major Revisions Needed
On 05 Jul, 2021
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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
Research Article
Chuntian Xu
Liaoning Institute 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 08 Jul, 2021
No community comments so far
Editorial decision: Major Revisions Needed
On 05 Jul, 2021
First submitted
On 12 Apr, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Mechanical Engineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The peak strain (PS) of sheet metal highly affects the process design and the quality of roll formed product. Different from the traditional roll forming technology (RFT) that all the cross section contours of the product are rolled simultaneously, a symmetric RFT is developed with respect to the corrugated channels under the study to avoid defects like tearing, twist and redundant deformations. The behaviors of their peak strains are subsequently simulated with Finite Element (FE), and the effects of three factors of the rolling speed, friction coefficient and the bending angle of roll are analyzed, respectively. Finally, both the rationality of RFT and the accuracy of final rolled product are verified by experiments. Results show that for two roll forming channels at the same time, even under the equal bending angles and the pressures of rolls, their maximum peak strains are also distinguished for their different channel widths. The maximum PS of the narrow channel is significantly larger than that of the wide, and the closer to the middle channel, the greater the PS of the narrow channel, which is on the right of bending angle of the trough. Moreover, the maximum PS is dominant by the friction coefficient and bending angle of the first forming pass. This can provide a reference in the design of RFT and improving the quality of the final rolled corrugated channels.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
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