Work

Optimizing Nozzle Structure and Parameters for Continuous Fiber Prepreg Filament 3D Printing

Year: 2025

Type: article

Abstract: Successful continuous fiber-reinforced composite filament 3D printing hinges on the synergistic relationship between the printing nozzle and precisely controlled process parameters. This research uses a simulation model to investigate how printing temperature, printing speed, and nozzle length affect the prepreg filament's molten state during 3D printing. We employed the Box-Behnken response surface methodology to optimize these key parameters. Using continuous fiber-reinforced composite filament polylactic acid (CFRCF/PLA) as an example, and a printing nozzle with a 1 mm diameter and an 8 mm length of heating zone were designed. The optimal printing parameters were determined to be as follows: printing temperature of 220 °C, printing speed of 300 mm/min, and printing layer height of 0.2 mm. Experimental validation using the optimized nozzle and parameters demonstrated enhanced stability in continuous fiber prepreg filament printing.

Source: Polymers

DOI: 10.3390/polym17081014

Authors: Sheng Qu, Qi Zhang, Beiying Liu, Wei Li, Yesong Wang, Feilong Li, Jisheng Liu

Institutions: University of Science and Technology Beijing, Tongji University, Jiangsu University of Science and Technology

Language: English

Topic: Additive Manufacturing and 3D Printing Technologies

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,258

OpenAlex ID: W4409282320

FWCI: 1.773

Cites: 25

Cited by: 7

Related to: 10