局部孔隙率对直接金属激光烧结1.2709合金力学性能的影响

IF 1.2 4区工程技术 Q3 ENGINEERING, MECHANICAL

Strojniski Vestnik-Journal of Mechanical Engineering Pub Date : 2020-06-15 DOI:10.5545/sv-jme.2020.6573

I. Hatos, I. Fekete, D. Harangozó, H. Hargitai

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引用次数: 2

摘要

粉末床金属印刷已经证明了其直接制造复杂零件的潜力。与传统制造相比，它具有很大的灵活性。也有一些困难和问题，例如，因为过程在生产过程中停止。当工艺重新开始时，由于技术限制，第一层可能会更厚。本文对这些较厚层的存在所造成的影响进行了研究。还分析了重新熔化层以降低孔隙率的可能性。采用牌号为1.2709的工具钢粉末制备了熔层厚度增加的样品。

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Influence of Local Porosity on the Mechanical Properties of Direct Metal Laser-Sintered 1.2709 Alloy

Powder bed metal printing has demonstrated its potential for the direct manufacturing of complex parts. It has great flexibility compared to conventional manufacturing. There are also some difficulties and problems, e.g., because the process stops during production. When the process is restarted, the first layer may be thicker due to technological limitations. In this paper, the effects caused by the presence of these thicker layers were investigated. The possibility of re-melting the layers to reduce porosity were also analysed. A tool steel powder grade 1.2709 was used to produce samples with an increased thickness of melted layers.

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来源期刊

Strojniski Vestnik-Journal of Mechanical Engineering 工程技术-工程：机械

CiteScore

3.00

自引率

17.60%

发文量

审稿时长

4.1 months

期刊介绍： The international journal publishes original and (mini)review articles covering the concepts of materials science, mechanics, kinematics, thermodynamics, energy and environment, mechatronics and robotics, fluid mechanics, tribology, cybernetics, industrial engineering and structural analysis. The journal follows new trends and progress proven practice in the mechanical engineering and also in the closely related sciences as are electrical, civil and process engineering, medicine, microbiology, ecology, agriculture, transport systems, aviation, and others, thus creating a unique forum for interdisciplinary or multidisciplinary dialogue.