A study of post-processing methods for improving the tightness of a part fabricated by fused deposition modeling

• Published in: International journal of precision engineering and manufacturing Vol. 17; no. 11; pp. 1541 - 1546
• Main Authors: Jo, Kwang-Ho, Jeong, Yeon-Seong, Lee, Jae-Hak, Lee, Seok-Hee
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society for Precision Engineering 01.11.2016; Springer Nature B.V
• Subjects: Engineering; Fused deposition modeling; Industrial and Production Engineering; Materials Science; Rapid prototyping; Surface roughness; Tensile strength; Tightness; Infiltration; Fused deposition modeling; Fumigation; Post-processing; Dipping
• ISSN: 2234-7593; 2005-4602
• DOI: 10.1007/s12541-016-0180-z

Fused Deposition Modeling (FDM) is one of the various Rapid Prototyping (RP) processes fabrication a complex three-dimensional (3D) physical model by depositing fused thermoplastic material in two-dimensional (2D) layer by layer. Coarse surface roughness due to the stair-stepping effect should be improved for better quality of a fabricated part, moreover its material strength and tightness should be enhanced by increasing bonding effect between the material particles. In this study, some practical approaches are addressed to guarantee the surface of roughness and tightness, such as shrinkage test, tightness test and tensile strength test of the specimen after post-processing. The proposed method is found to be very efficient way to be more accurate dimensioning and providing a more sufficient strength of the fabricated part.