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http://dx.doi.org/10.14775/ksmpe.2014.13.2.041

Characteristics of Surface Lamination according to Nozzle Position in Liquid Direct Writing SFF  

Jung, Hung Jun (Dep. of Precision Mechanical Eng., Chungbuk National Univ.)
Lee, In Hwan (Mechanical Eng., Chungbuk National Univ.)
Kim, Ho-Chan (Dep. of Mechanical and Automotive Eng., Andong National Univ.)
Cho, Hae Yong (Mechanical Eng., Chungbuk National Univ.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.13, no.2, 2014 , pp. 41-48 More about this Journal
Abstract
Direct writing(DW) is a method of patterning materials to a substrate directly, without a mask. It can use a variety of materials and be applied to various fields. Among DW systems, the flow-based type, using a syringe pump and nozzle, is simpler than other types. Furthermore, the range of materials is exceptionally wide. In additive processes, a three dimensional structure is made of stacking layer. Each layer is made of several lines. In this regard, good surface roughness of fabricated layers is essential to three dimensional fabrication. The surface roughness of any fabricated layer tends to change with the dispensing pattern. When multiple layers fabricated by a nozzle dispensing system are stacked, control of the nozzle position from the substrate is important in order to avoid interference between the nozzle and the fabricated layer. In this study, a fluid direct writing system for three dimensional structure fabrication was developed. Experimentsto control the position of the nozzle from substrate were conducted in order to examine the characteristics of the material used in this system.
Keywords
Solid Freeform Fabrication; Direct Writing; Nozzle Dispensing; Photopolymer;
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  • Reference
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