Towards Continuous Production of Shaped Honeycombs
Copyright © 2018 ASME. Honeycomb sandwich panels are widely used for high performance parts subject to bending loads, but their manufacturing costs remain high. In particular, for parts with non-flat, non-uniform geometry, honeycombs must be machined or thermoformed with great care and expense. The...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Society of Mechanical Engineers
2021
|
| Online Access: | https://hdl.handle.net/1721.1/138015 |
| _version_ | 1826215503434088448 |
|---|---|
| author | Calisch, Sam E. Gershenfeld, Neil A. |
| author_facet | Calisch, Sam E. Gershenfeld, Neil A. |
| author_sort | Calisch, Sam E. |
| collection | MIT |
| description | Copyright © 2018 ASME. Honeycomb sandwich panels are widely used for high performance parts subject to bending loads, but their manufacturing costs remain high. In particular, for parts with non-flat, non-uniform geometry, honeycombs must be machined or thermoformed with great care and expense. The ability to produce shaped honeycombs would allow sandwich panels to replace monolithic parts in a number of high performance, spaceconstrained applications, while also providing new areas of research for structural optimization, distributed sensing and actuation, and on-site production of infrastructure. Previous work has shown methods of directly producing shaped honeycombs by cutting and folding flat sheets of material. This research extends these methods by demonstrating work towards a continuous process for the cutting and folding steps of this process. An algorithm for producing a manufacturable cut-And-fold pattern from a three-dimensional volume is designed, and a machine for automatically performing the required cutting and parallel folding is proposed and prototyped. The accuracy of the creases placed by this machine is characterized and the impact of creasing order is demonstrated. Finally, a prototype part is produced and future work is sketched towards full process automation. |
| first_indexed | 2024-09-23T16:32:14Z |
| format | Article |
| id | mit-1721.1/138015 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:32:14Z |
| publishDate | 2021 |
| publisher | American Society of Mechanical Engineers |
| record_format | dspace |
| spelling | mit-1721.1/1380152021-11-10T03:02:35Z Towards Continuous Production of Shaped Honeycombs Calisch, Sam E. Gershenfeld, Neil A. Copyright © 2018 ASME. Honeycomb sandwich panels are widely used for high performance parts subject to bending loads, but their manufacturing costs remain high. In particular, for parts with non-flat, non-uniform geometry, honeycombs must be machined or thermoformed with great care and expense. The ability to produce shaped honeycombs would allow sandwich panels to replace monolithic parts in a number of high performance, spaceconstrained applications, while also providing new areas of research for structural optimization, distributed sensing and actuation, and on-site production of infrastructure. Previous work has shown methods of directly producing shaped honeycombs by cutting and folding flat sheets of material. This research extends these methods by demonstrating work towards a continuous process for the cutting and folding steps of this process. An algorithm for producing a manufacturable cut-And-fold pattern from a three-dimensional volume is designed, and a machine for automatically performing the required cutting and parallel folding is proposed and prototyped. The accuracy of the creases placed by this machine is characterized and the impact of creasing order is demonstrated. Finally, a prototype part is produced and future work is sketched towards full process automation. 2021-11-09T18:38:04Z 2021-11-09T18:38:04Z 2018-06-18 2019-07-22T14:54:18Z Article http://purl.org/eprint/type/ConferencePaper https://hdl.handle.net/1721.1/138015 Calisch, Sam E. and Gershenfeld, Neil A. 2018. "Towards Continuous Production of Shaped Honeycombs." en 10.1115/msec2018-6646 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Society of Mechanical Engineers ASME |
| spellingShingle | Calisch, Sam E. Gershenfeld, Neil A. Towards Continuous Production of Shaped Honeycombs |
| title | Towards Continuous Production of Shaped Honeycombs |
| title_full | Towards Continuous Production of Shaped Honeycombs |
| title_fullStr | Towards Continuous Production of Shaped Honeycombs |
| title_full_unstemmed | Towards Continuous Production of Shaped Honeycombs |
| title_short | Towards Continuous Production of Shaped Honeycombs |
| title_sort | towards continuous production of shaped honeycombs |
| url | https://hdl.handle.net/1721.1/138015 |
| work_keys_str_mv | AT calischsame towardscontinuousproductionofshapedhoneycombs AT gershenfeldneila towardscontinuousproductionofshapedhoneycombs |