用吹粉定向能沉积法制造单晶胞

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Letters Pub Date : 2025-05-08 DOI:10.1016/j.mfglet.2025.04.001

Alan Burl , William Huggins , Rodrigo Zapata Martínez , Andrés Díaz Lantada , Jon Molina-Aldareguia , Christopher Saldaña , Kyle Saleeby

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引用次数: 0

摘要

通过增材制造制造的晶格结构显示出改变现有组件以改善基础结构的热机械性能的独特前景。本研究探讨了用吹粉定向能沉积法制备自支撑晶格结构的方法。采用多个倾斜角度制造收敛杆，以促进结构的自支撑，避免机器与零件的碰撞。在倾斜角度为10°时，支撑相对于拟合线的直线度接近均匀，最大偏差为1mm。显微硬度和孔隙度评价结果显示，沿支板方向变化不显著。

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Unit cell manufacture by blown powder directed energy deposition

Lattice structures manufactured by additive manufacturing show unique promise to alter existing components to improve the thermo-mechanical properties of the base structure. In the present study, the manufacture of a self-supporting lattice structure by blown powder directed energy deposition was explored. Converging struts were manufactured using multiple lean angles to facilitate the self-supporting structure and to avoid machine-part collisions. The struts showed near uniform straightness relative to a fitted line with a maximum deviation of 1mm at a lean angle of 10°. Micro–hardness and porosity evaluation results showed no significant variation along the struts.

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