Lobster eye-imitating focused intensive pulse light in-situ forming 4D printing device and method

Abstract

The invention discloses a lobster eye-imitating focused intensive pulse light in-situ forming 4D printing device and method. The device comprises a bottom plate; a forming substrate is slidably mounted on the upper surface of the bottom plate; a support is mounted on the bottom plate; an X-axis movement structure moving in the X direction is arranged on the bottom plate; a Y-axis movement structure moving in the Y direction and a Z-axis movement structure moving in the Z direction are installed on the two sides of the support; a heterogeneous shape memory material slurry deposition mechanism and a lobster eye-imitating focused in-situ intensive pulse light sintering mechanism are movably connected with the Y-axis movement structure to form Y-direction movement; in the forming process, shape memory material slurry is subjected to in-situ sintering curing, a slurry deposition forming sample does not need to be subjected to sintering curing treatment, and the 4D printing forming technology is simplified; and by adjusting input energy density of focused pulsed light, a gradient shape memory performance change of 4D printed samples of a same material and combination of interfaces of dissimilar shape memory materials are realized, and the 4D printing in-situ forming with adjustable space of the material and shape memory performance is realized.

Description

technical field [0001] The present invention relates to the technical field of 4D printing, in particular to a device and method for in-situ forming of bionic focused pulsed strong light 4D printing, which is used for in-situ forming 4D printing of shape memory material slurry, and the energy density and forming process of input pulsed strong light The type of material is adjustable, which can realize the 4D printing of functionally gradient parts with adjustable molding materials and shape memory properties. Background technique [0002] 4D printing technology means that the structure formed by the additive manufacturing technology can change its shape or structure under external excitation, and the deformation design of the material and structure is directly built into the material, simplifying the creation process from the design concept to the real object. 4D printing devices mainly include photocuring, fused deposition, indirect additive manufacturing, and selective las...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a non-polar variable input energy density in-situ forming 4D printing device and method, which combines the focused pulse strong light system with imitation lobster eye structure and indirect 4D printing technology to realize the internal material distribution and shape memory characteristics of the sample The space-adjustable 4D printing solves the problem that existing 4D printing devices have single types of molding materials, poor dimensional accuracy of molding parts, inability to realize jointing of heterogeneous shape memory materials, and non-adjustable spatial shape memory characteristics.

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