Design and Additive Manufacturing of Lightweight and Energy-saving Hydraulic Manifold

doi:10.3901/JME.2021.24.123

Abstract

Abstract: Additive manufacturing(AM) provides advanced technology for manufacturing hydraulic power components. However, there lack effective design methods to guide the additive manufacturing of hydraulic components with lighter weight and improved hydraulic energy transmission efficiency. The optimized structure for the selective laser melted (SLMed) hydraulic manifold is designed. Moreover, three design criteria are proposed to reduce local pressure loss of fluid passage structure:gradually curved turn design; large turn radius design, and lower turn number design. Based on these criteria, a conventionally processed hydraulic manifold is redesigned and fabricated by SLM technology. Compared with the traditional hydraulic manifold, the weight and space volume of the new SLMed hydraulic manifold are reduced by 81% and 46%, respectively. And the average pressure loss of the main functional oil circuit is reduced by 20%, illustrating that the new hydraulic manifold design simultaneously achieves lightweight and improved hydraulic energy transmission efficiency. Finally, a design process of hydraulic manifold for AM is proposed. Theoretical guidance for designing additively manufactured hydraulic components with increased power-to-mass ratio is provided.

Key words: additive manufacturing, selective laser melting, hydraulic manifold, lightweight, energy-saving

CLC Number:

TH137

ZHANG Chao, ZHOU Lei, ZHAO Cong, WANG Shuai, HE Tairan, ZHU Yi, YANG Huayong. Design and Additive Manufacturing of Lightweight and Energy-saving Hydraulic Manifold[J]. Journal of Mechanical Engineering, 2021, 57(24): 123-131.

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