本发明公开了一种轻质吸能减振仿微结构及其制备方法,包括:从上至下依次堆叠的若干层吸能层,每个吸能层均包括若干个吸能框架,每个吸能框架内均嵌入有一金属橡胶球;本发明参考金刚石微观八面体结构填充间隙原子提高弹性模量及强度的机理,提出在3D打印的NiTi基八面体间隙中填充NiTi金属橡胶球的仿微复合结构,能够提高结构件的弹性模量、强度和吸能效率;本发明中的结构相比于传统减振橡胶,具有抗辐射、耐腐蚀、耐高低温、抗老化等优点;相比于传统金属橡胶,具有成形精度高、可成形复杂结构、吸能效率高等优点;相比于简单NiTi金属基八面体点阵结构,具有高强度、高模量、高吸能效率等优点。

    The invention discloses a novel light energy absorption and vibration reduction imitation microstructure and a preparation method thereof. The novel light energy absorption and vibration reduction imitation microstructure comprises a plurality of energy absorption layers which are sequentially stacked from top to bottom, each energy absorption layer comprises a plurality of energy absorption frames, and a metal rubber ball is embedded in each energy absorption frame. According to the preparation method, by reference to the mechanism for improving elastic modulus and the strength that a diamondmicro-octahedral structure is filled with an interstitial atom, the micro-new composite structure of filling a NiTi-based octahedral interstice of 3D printing with a NiTi metal rubber ball is proposed, and the elastic modulus, the strength and energy absorption efficiency of a structural part can be improved; compared with a traditional metal rubber, the structure has the advantages of radiationresistance, corrosion resistance, high and low temperature resistance, aging resistance and the like; compared with the traditional metal rubber, the structure has the advantages of high forming precision, being capable of forming a complex structure, high energy absorption efficiency and the like; and compared with a simple NiTi metal-based octahedral lattice structure, the structure has the advantages of high strength, high modulus, high energy absorption efficiency and the like.


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    Title :

    一种轻质吸能减振仿微结构及其制备方法


    Publication date :

    2022-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B22F Verarbeiten von Metallpulver , WORKING METALLIC POWDER / B33Y ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING , Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern / B64G Raumfahrt , COSMONAUTICS