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http://dx.doi.org/10.7736/KSPE.2016.33.1.77

Hybrid 3D Printing and Casting Manufacturing Process for Fabrication of Smart Soft Composite Actuators  

Kim, Min-Soo (Department of Mechanical and Aerospace Engineering, Seoul National University)
Song, Sung-Hyuk (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kim, Hyung-Il (Department of Mechanical and Aerospace Engineering, Seoul National University)
Ahn, Sung-Hoon (Department of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.33, no.1, 2016 , pp. 77-83 More about this Journal
Abstract
Intricate deflection requires many conventional actuators (motors, pistons etc.), which can be financially and spatially wasteful. Novel smart soft composite (SSC) actuators have been suggested, but fabrication complexity restricts their widespread use as general-purpose actuators. In this study, a hybrid manufacturing process comprising 3-D printing and casting was developed for automated fabrication of SSC actuators with $200{\mu}m$ precision, using a 3-D printer (3DISON, ROKIT), a simple polymer mixer, and a compressor controller. A method to improve precision is suggested, and the design compensates for deposition and backlash errors (maximum, $170{\mu}m$). A suitable flow rate and tool path are suggested for the polymer casting process. The equipment and process costs proposed here are lower than those of existing 3D printers for a multi-material deposition system and the technique has $200{\mu}m$ precision, which is suitable for fabrication of SSC actuators.
Keywords
Smart soft composite actuator; Hybrid manufacturing process; 3D printing; Casting; Automation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 Ahn, S.-H., Lee, K.-T., Kim, H.-J., Wu, R., Kim, J.-S., et al., "Smart Soft Composite: An Integrated 3D Soft Morphing Structure Using Bend-Twist Coupling of Anisotropic Materials," Int. J. Precis. Eng. Manuf., Vol. 13, No. 4, pp. 631-634, 2012.   DOI
2 Wu, R., Han, M.-W., Lee, G.-Y., and Ahn, S.-H., "Woven Type Smart Soft Composite Beam with in- Plane Shape Retention," Smart Materials and Structures, Vol. 22, No. 12, Paper No. 125007, 2013.
3 Rodrigue, H., Wang, W., Bhandari, B., Han, M.-W., and Ahn, S.-H., "Cross-Shaped Twisting Structure Using SMA-Based Smart Soft Composite," Int. J. Precis. Eng. Manuf.-Green Tech., Vol. 1, No. 2, pp. 153-156, 2014.   DOI
4 Wang, W., Rodrigue, H., and Ahn, S.-H., "Smart Soft Composite Actuator with Shape Retention Capability Using Embedded Fusible Alloy Structures," Composites Part B: Engineering, Vol. 78, pp. 507-514, 2015.   DOI
5 Rodrigue, H., Wang, W., Bhandari, B., Han, M.-W., and Ahn, S.-H., "SMA-Based Smart Soft Composite Structure Capable of Multiple Modes of Actuation," Composites Part B: Engineering, Vol. 82, pp. 152-158, 2015.   DOI
6 Rodrigue, H., Bhandari, B., Han, M.-W., and Ahn, S.- H., "A Shape Memory Alloy-Based Soft Morphing Actuator Capable Of Pure Twisting Motion," Journal of Intelligent Material Systems and Structures, Vol. 26, No. 9, pp. 1071-1078, 2015.   DOI
7 Cho, K.-J., Koh, J.-S., Kim, S., Chu, W.-S., Hong, Y., et al., "Review of Manufacturing Processes for Soft Biomimetic Robots," Int. J. Precis. Eng. Manuf., Vol. 10, No. 3, pp. 171-181, 2009.   DOI
8 Kim, H.-J., Song, S.-H., and Ahn, S.-H., "A Turtle- Like Swimming Robot Using a Smart Soft Composite (SSC) Structure," Smart Materials and Structures, Vol. 22, No. 1, Paper No. 014007, 2013.
9 Smooth-on, Inc., "Mold Star(R) Silicones," http://www.smooth-on.com/Silicone-Rubber-an/c2_1115_1341/index.html (Accessed 7 December 2015)
10 Bayley, C., Bochmann, L., Hurlbut, C., Helu, M., Transchel, R., et al., "Understanding Error Generation in Fused Deposition Modeling," Proc. ASPE Spring Topical Meeting on Dimensional Accuracy and Surface Finish in Additive Manufacturing, pp. 98-103, 2014.
11 ROKIT, "3DISION+," http://www.3disonprinter.com/product-plus.php (Accessed 7 December 2015)