Drivers of mechanical performance variance in 3D-printed fused filament fabrication parts: An Onyx FR case study

被引：23

作者：

Ma, Christine ^{[1
]}

Faust, Jessica ^{[1
]}

Roy-Mayhew, Joseph D. ^{[1
]}

机构：

[1] Markforged Inc, Watertown, MA 02472 USA

来源：

POLYMER COMPOSITES | 2021年 / 42卷 / 09期

关键词：

3D printing; fiber reinforcement; fused filament fabrication; mechanical properties; moisture; print orientation; PROCESS PARAMETERS; WATER-ABSORPTION; TENSILE-STRENGTH; FDM PROCESS; COMPOSITES; SPECIMENS; BEHAVIOR;

D O I：

10.1002/pc.26187

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Effects on mechanical properties of user-controlled and user-uncontrolled factors in a 3D printing system were investigated using a flame retardant carbon fiber reinforced nylon filament. Moisture and print orientation, both user controllable elements, dominated mechanical property variation. Dry samples exhibited tensile (flexural) strength 2.4 (2.1) times greater than that of wet samples, while ZX samples were measured to have about half the tensile strength of XY and XZ samples. User-uncontrolled factors including material to material variation and printer to printer variation were found to have minor impact (<5%) on part tensile strength. Reinforcing the part with 21 vol% continuous fiber lowers the moisture induced variance from 13% to 2% in addition to increasing the measured strength by about 10x (to 451 MPa).

引用

页码：4786 / 4794

页数：9

共 22 条

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