Geometric analysis of the MDF kerf-bending structure accuracy
In digital design, rigid flat materials commonly hinder the fabrication of complex-curved geometries. A fabrication approach based on the socalled bending cut patterns or “kerf-bending” can be used to improve the ability of a material to bend. This bending method relies on a complex mechanical behav...
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Published in | International journal of space structures Vol. 37; no. 2; pp. 135 - 149 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
London, England
SAGE Publications
01.06.2022
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Abstract | In digital design, rigid flat materials commonly hinder the fabrication of complex-curved geometries. A fabrication approach based on the socalled bending cut patterns or “kerf-bending” can be used to improve the ability of a material to bend. This bending method relies on a complex mechanical behavior, requiring an accurate evaluation of the resultant surface. By mastering the geometric effects, some adjustments can be made to the project so that the result better approximates the designer’s intentions. This study focused on geometric accuracy of MDF kerfbending, including target-geometry design, cutting, bending, 3D scanning and analysis. It demonstrated that depending on the arc bending radius, the sample with a defined cut pattern may become excessively tensioned, protruding to the outside, or without enough stiffness to conform to an ideal shape. Experiments have validated this methodology and obtained a stable and precise half-cylinder by selecting the most adequate radius range for the material and parameters adopted. |
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AbstractList | In digital design, rigid flat materials commonly hinder the fabrication of complex-curved geometries. A fabrication approach based on the socalled bending cut patterns or “kerf-bending” can be used to improve the ability of a material to bend. This bending method relies on a complex mechanical behavior, requiring an accurate evaluation of the resultant surface. By mastering the geometric effects, some adjustments can be made to the project so that the result better approximates the designer’s intentions. This study focused on geometric accuracy of MDF kerfbending, including target-geometry design, cutting, bending, 3D scanning and analysis. It demonstrated that depending on the arc bending radius, the sample with a defined cut pattern may become excessively tensioned, protruding to the outside, or without enough stiffness to conform to an ideal shape. Experiments have validated this methodology and obtained a stable and precise half-cylinder by selecting the most adequate radius range for the material and parameters adopted. |
Author | Lorenzoni, Barbara Ruschel Silva, Fabio Pinto da |
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Cites_doi | 10.1007/s10853-007-1782-8 10.1073/pnas.1417276111 10.1007/s00004-018-0415-7 10.1007/978-3-030-03676-8_1 10.11606/gtp.v12i3.134543 10.1007/978-981-10-6611-5_1 10.1177/0266351118804954 10.1016/B978-1-78242-454-3.00005-6 10.1016/j.precisioneng.2015.03.008 10.1016/j.destud.2015.08.007 10.1016/j.engstruct.2017.10.026 10.1016/j.cag.2017.05.010 10.1002/9780470960035 10.1016/j.autcon.2013.06.003 10.1016/j.undsp.2017.02.001 10.1016/j.ndteint.2018.03.007 10.1007/978-3-030-03676-8_15 10.12783/asc33/26181 10.17077/etd.6ubabqtu 10.1016/j.engstruct.2018.06.094 10.1088/0150-536X/29/3/015 10.1016/j.precisioneng.2015.04.011 10.1007/978-3-319-93749-6_92 |
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Keywords | Flat rigid surface curving cut pattern 3D scanner deviation analysis kerfing laser cutting |
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