The invention discloses a marine gradient alloy laser 3D printing propeller and a manufacturing process, the 3D printing propeller comprises a propeller hub used for forming a cylindrical middle structure of the propeller, and the propeller hub is made of a high-damping first alloy manganese copper alloy; the propeller further comprises a bonding layer used at the joint of the propeller hub and the propeller blades, and the bonding layer achieves the purposes that thermal expansion coefficients of different kinds of alloys in a material transition area are blurred and thermal stress mismatch in the deposition process is relieved by adjusting the proportion of the first alloy and the second alloy. The manufacturing process comprises the steps that a 3D printing technology is adopted, and after a propeller hub made of first alloy manganese copper is formed, the propeller hub is taken out of a deposition chamber of a 3D printer; the first alloy manganese copper obtained after solid solution-aging and oxide layer removal is loaded back to the deposition chamber, the position of a motor of a motion platform is unlocked, and a gradient alloy bonding layer is deposited; depositing a second alloy nickel aluminum bronze alloy on the bonding layer; the technical problems that vibration noise needs to be reduced and cavitation corrosion needs to be solved in the ocean engineering field are solved.

    本发明公开了一种船用梯度合金激光3D打印螺旋桨和制作工艺,该3D打印螺旋桨包括用于形成螺旋桨圆柱状中间结构的桨毂、该桨毂由高阻尼第一合金锰铜合金制成;还包括用于桨毂与桨叶连接处的结合层,该结合层通过调整第一合金和第二合金的占比,达到模糊材料过渡区不同种类合金的热膨胀系数、缓解沉积过程中的热应力失配的目标;该制作工艺包括:采用3D打印技术,将第一合金锰铜制成的桨毂成型后从3D打印机的沉积室取出;将固溶‑时效和以及去除氧化层后的第一合金锰铜装回沉积室,解锁运动平台电机位置,沉积梯度合金结合层;将第二合金镍铝青铜合金沉积到结合层;本发明解决了海洋工程领域既要减少振动噪声、又要解决空泡腐蚀的技术难题。


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    Title :

    Marine gradient alloy laser 3D printing propeller and manufacturing process


    Additional title:

    一种船用梯度合金激光3D打印螺旋桨和制作工艺


    Contributors:
    YAN KUO (author) / JIANG HENG (author) / CHEN MENG (author) / WANG ZHIYING (author) / XU WENSHUAI (author) / WANG HAIRUI (author) / ZHAO LINGLING (author)

    Publication date :

    2023-08-29


    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 / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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