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Local Viscosity Control Printing for High-Throughput Additive Manufacturing of Polymers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Siegel, Joshua E. Erb, Dylan C. Ehrenberg, Isaac Sarma, Sanjay E. |
| Copyright Year | 2016 |
| Abstract | Fused deposition modeling’s (FDM) throughput is limited by process physics as well as practical considerations favoring single-head polymer extrusion. To expedite the thermoplastic additive manufacturing process, we propose a parallelized material deposition process called local viscosity control (LVC) additive manufacturing. LVC prints an entire layer in one step by selectively modulating the viscosity of polymer feedstock in contact with a heated wire mesh. Layers of molten polymer are contact printed, with the relative motion between the wire mechanism and a build plate allowing wetting and surface tension to transfer selectively heated, lower viscosity regions of polymer to a fixed substrate. Experiments demonstrate the viability of this process using a single cell depositing layered polycarbonate pixels. Theoretical analysis shows this process may offer similar capabilities in resolution to conventional FDM with a significantly higher production rate for commonly available input power. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://dspace.mit.edu/openaccess-disseminate/1721.1/112937 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
