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http://dx.doi.org/10.3795/KSME-A.2015.39.8.773

A Study on the Mechanical Properties of Additive Manufactured Polymer Materials  

Kim, Dongbum (Dept. of Mechanical Engineering, Chungbuk Nat'l Univ.)
Lee, In Hwan (Dept. of Mechanical Engineering, Chungbuk Nat'l Univ.)
Cho, Hae Yong (Dept. of Mechanical Engineering, Chungbuk Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.8, 2015 , pp. 773-780 More about this Journal
Abstract
Traditionally, additive manufacturing (AM) technology has been used to fabricate prototypes in the early development phase of a product. This technology is being applied to release manufacturing of a product because of its low cost and fast fabrication. AM technology is a process of joining materials to fabricate a product from the 3D CAD data in a layer-by-layer manner. The orientation of a layer during manufacturing can affect the mechanical properties of the product because of its anisotropy. In this paper, tensile testing of polymer-based specimens were built with a typical AM process (FDM, PolyJet and SLA) to study the mechanical properties of the AM materials. The ASTM D 638 tensile testing standard was followed for building the specimens. The mechanical properties of the specimens were determined on the basis of stress-strain curves formed by tensile tests. In addition, the fracture surfaces of the specimens were observed by SEM to analyze the results.
Keywords
Additive Manufacturing(AM); Rapid Prototyping(RP); 3D Printing; Fused Deposition Modeling(FDM); PolyJet; Stereolithography Apparatus(SLA); Tensile Testing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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