Mechanical properties and water absorption of surface modified ABS 3D printed by fused deposition modelling

被引:49
|
作者
Leite, Marco [1 ,2 ]
Varanda, Andre [1 ]
Ribeiro, Antonio Relogio [1 ]
Silva, Arlindo [3 ]
Vaz, Maria Fatima [1 ]
机构
[1] Univ Lisbon, Inst Super Tecn, DEM ACPMME, IDMEC, Lisbon, Portugal
[2] ISCTE Inst, DMOG, Lisbon, Portugal
[3] Singapore Univ Technol & Design, Dept Engn Prod Dev, Singapore, Singapore
关键词
Product design; Fused deposition modelling; Mechanical properties of materials; ABS; Open porosity; Sealing; STRENGTH; PARTS; TECHNOLOGIES; COMPONENTS; PROTOTYPES; BEHAVIOR; DESIGN;
D O I
10.1108/RPJ-04-2016-0057
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Purpose - The purpose of this paper is to investigate the effect of a sealing protective treatment on the water absorption and mechanical properties of acrylonitrile butadiene styrene (ABS)- printed parts by fused deposition modelling. Protective products include aqueous acetone solutions with different concentrations, polyurethane wood sealer and aqueous acrylic-based varnish. Design/methodology/approach - Open porosity was estimated by the absorption coefficient and the total amount of water retained, obtained from water absorption tests. Mechanical characterization was performed by compressive and tensile tests. Different specimens with different build directions and raster angles were used. Findings - The treatments with acetone solutions were not effective in reducing the porosity of ABS parts, as the amount of acetone that reduces effectively the porosity will also affect the sample dimensional stability. The polyurethane treatment was found to reduce the absorption coefficient, but the maximum water content and the open porosity remain almost unchanged in comparison with the ones obtained for untreated specimens. The treatment with an acrylic-based varnish was found to preserve the dimensional stability of the specimens, to reduce the open porosity and to maintain the compression and tension properties of the specimens in different build directions and raster angles. Originality/value - Surface modification for water tight applications of ABS 3D printing parts enables new designs where both sealing and the preservation of mechanical properties are important. As per the knowledge of the authors, the water absorption and the mechanical behaviour of ABS 3D printed parts, before and after treatment, were not previously investigated.
引用
收藏
页码:195 / 203
页数:9
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