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<p>The utilisation of 3D printing processes in the fabrication of continuous fiber-reinforced composites confers a multitude of advantages, in particular flexible design based on structural requirements. In order to achieve greater flexibility, there is a necessity for 3D printing systems that allow for customisable material selection and fiber positioning. This paper presents the design of a robot-based 3D printing system that incorporates an in-situ impregnation line and flexibility regarding the machine code generation for fiber positioning. The development of the system enabled the attainment of an average fiber volume content of up to 37.12%. In the tensile tests, material characteristics up to <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(E_{1}=24.7\)</EquationSource> </InlineEquation>&#xa0;GPa and strength of up to <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(R_{M1}=0.51\)</EquationSource> </InlineEquation>&#xa0;GPa were determined.</p>

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Development of a continuous fiber-reinforced 3D printing process with a 6-axis robot arm: Process design and equipment

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月4日

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  • Anna Afanasev,
  • Philipp Höfer,
  • Jens Holtmannspötter,
  • Felix Zimmer,
  • Ingo Ehrlich

摘要

The utilisation of 3D printing processes in the fabrication of continuous fiber-reinforced composites confers a multitude of advantages, in particular flexible design based on structural requirements. In order to achieve greater flexibility, there is a necessity for 3D printing systems that allow for customisable material selection and fiber positioning. This paper presents the design of a robot-based 3D printing system that incorporates an in-situ impregnation line and flexibility regarding the machine code generation for fiber positioning. The development of the system enabled the attainment of an average fiber volume content of up to 37.12%. In the tensile tests, material characteristics up to \(E_{1}=24.7\)  GPa and strength of up to \(R_{M1}=0.51\)  GPa were determined.