A method for in-situ fabrication of continuous fiber reinforced soft-hard hybrid thermoplastic matrix components

Abstract

The invention discloses an in-situ manufacturing method of a continuous fiber reinforced soft-hard mixed thermoplastic base component, which includes: (1) inputting the model and process parameters required for additive manufacturing; (2) slicing the input model to obtain n layers The initial slicing path; (3) Calculate and obtain the center point P of the first layer of the slicing path c , and offset the slice path Path to P c is the coordinate system of the origin; (4) Interpolate the path of each layer to the specified precision, and the path after interpolation is Path I ; (5) Calculate Path I Arrive at the angle θ required by the nozzle's specified posture α, and readjust the Path I The start and end seams of each path, get Path end ; (6) put Path end Convert to polar coordinates to generate the printing path P of the four-axis printer x，y，z，θ , and according to the printing speed S and the nozzle control temperature T, the control code of the four-axis printer is generated. The invention solves the problems of poor mechanical properties of soft and hard mixed materials and poor interface fusion of soft and hard mixed materials.

Description

technical field [0001] The invention relates to the field of fiber composite additive manufacturing, in particular to an in-situ manufacturing method of continuous fiber reinforced soft and hard mixed thermoplastic matrix components. Background technique [0002] At present, 3D printing focuses on printing a single material, and optimizing the single-material printing process parameters is the key point, such as studying the influence of printing layer thickness, printing direction and printing speed on the performance of printed parts, but the optimal state of optimizing these process parameters is to fully exert The mechanical properties of a single material itself, but usually the performance and price of a single material are contradictory. It is a common method to further improve the mechanical properties of printed parts with a certain cost performance. Mixing with other materials into composite materials is a common method. The most important thing is to mix with fibe...

AI Technical Summary

Problems solved by technology

[0006] The invention provides an in-situ manufacturing method of a continuous fiber reinforced soft-hard mixed thermoplastic base component, which solves the problems of poor mechanical properties of soft-hard mixed materials and poor interface fusion of soft-hard mixed materials

Images