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http://dx.doi.org/10.3795/KSME-A.2017.41.2.103

Verification of Build Part and Tool Paths for Metal 3-D Printing Process  

Lee, Kyubok (Dept. of Mechanical Engineering, Hongik Univ.)
Jee, Haeseong (Dept. of Mechanical System Design Engineering, Hongik Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.41, no.2, 2017 , pp. 103-109 More about this Journal
Abstract
Metal 3D printing, which is an additive metal manufacturing (AMM) process, enables the development of full-density metallic tools and parts using metal powders that are precisely delivered and controlled for deposition with no powder bed. However, some unknown geometric defects and irregular geometric features on an STL model can possibly result in incorrect metal part fabrication after the build. This study first proposes a methodical approach for verifying the build part, including the missing facet problems in an STL model, by defining some irregular features that possibly exist on the part. Second, 2D tool paths on each build layer were investigated for detecting any singular region inside the layer. The method was implemented for building two sample STL models using a direct energy deposition process, and finally, it was visually simulated for diagnosis.
Keywords
Metal 3D Printing; Long and Narrow Feature; Tool Path Verification; Build Part Verification;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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