| dc.contributor |
Massachusetts Institute of Technology. Department of Mechanical Engineering |
|
| dc.contributor |
Massachusetts Institute of Technology. Laboratory for Manufacturing and Productivity |
|
| dc.contributor |
Bageant, Maia R |
|
| dc.creator |
Hardt, David E. |
|
| dc.creator |
Bageant, Maia R |
|
| dc.date |
2017-05-02T18:03:53Z |
|
| dc.date |
2017-05-02T18:03:53Z |
|
| dc.date |
2015-11 |
|
| dc.date.accessioned |
2023-03-01T18:11:18Z |
|
| dc.date.available |
2023-03-01T18:11:18Z |
|
| dc.identifier |
978-0-7918-5618-5 |
|
| dc.identifier |
http://hdl.handle.net/1721.1/108600 |
|
| dc.identifier |
Bageant, Maia R., and David E. Hardt. “Measurement and Process Control in Precision Hot Embossing.” ASME 2013 International Mechanical Engineering Congress and Exposition, 15-21 November, 2013, San Diego, California, USA, ASME, 2013. © 2013 by ASME |
|
| dc.identifier |
https://orcid.org/0000-0002-9053-6882 |
|
| dc.identifier.uri |
http://localhost:8080/xmlui/handle/CUHPOERS/279082 |
|
| dc.description |
Microfluidic technologies hold a great deal of promise in advancing the medical field, but transitioning them from research to commercial production has proven problematic. We propose precision hot embossing as a process to produce high volumes of devices with low capital cost and a high degree of flexibility. Hot embossing has not been widely applied to precision forming of hard polymers at viable production rates. To this end we have developed experimental equipment capable of maintaining the necessary precision in forming parameters while minimizing cycle time. In addition, since equipment precision alone does not guarantee consistent product quality, our work also focuses on real-time sensing and diagnosis of the process.
This paper covers both the basic details for a novel embossing machine, and the utilization of the force and displacement data acquired during the embossing cycle to diagnose the state of the material and process. The precision necessary in both the forming machine and the instrumentation will be covered in detail. It will be shown that variation in the material properties (e.g. thickness, glass transition temperature) as well as the degree of bulk deformation of the substrate can be detected from these measurements. If these data are correlated with subsequent downstream functional tests, a total measure of quality may be determined and used to apply closed-loop cycle-to-cycle control to the entire process. By incorporating automation and specialized precision equipment into a tabletop “microfactory” setting, we aim to demonstrate a high degree of process control and disturbance rejection for the process of hot embossing as applied at the micron scale. |
|
| dc.description |
Singapore-MIT Alliance. Manufacturing Systems and Technology Programme |
|
| dc.format |
application/pdf |
|
| dc.language |
en_US |
|
| dc.publisher |
American Society of Mechanical Engineers (ASME) |
|
| dc.relation |
http://dx.doi.org/10.1115/IMECE2013-65788 |
|
| dc.relation |
Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition IMECE2013 |
|
| dc.rights |
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. |
|
| dc.source |
American Society of Mechanical Engineers (ASME) |
|
| dc.title |
Measurement and Process Control in Precision Hot Embossing |
|
| dc.type |
Article |
|
| dc.type |
http://purl.org/eprint/type/ConferencePaper |
|