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国外文献 > 1.轴承 > 3. 材料与制造 > 制造工艺

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标 题： A new method of manufacturing a foil bearing using tools made by the rapid prototyping technology
一种利用快速成型技术制造工具的箔片轴承新方法
作 者： Baginski, Pawel
Andrearczyk, Artur
Zywica, Grzegorz
关键词： Foil bearings  [箔片轴承]
Rapid prototyping  [ 快速原型制作]
Additive manufacturing  [ 增材制造]
Material jetting  [ 材料喷射]
Manufacturing of foil bearings  [ 箔片轴承的制造]
出版年： 2020
期刊名： CIRP Journal of Manufacturing Science and Technology
CIRP制造科学与技术杂志
年卷期： 2020, vol.31
摘 要： Foil bearings are aerodynamic gas bearings that are increasingly used in high-speed oil-free turbomachines, such as microturbines or turboexpanders. One of the barriers to the faster development of this type of bearings are production difficulties. This article discusses the consecutive stages in the development of a new method of manufacturing a bump foil - a key part of foil bearings. The threedimensional (3D) printing technology called MultiJet Printing was used to make precise production tools. A new application of the chosen additive manufacturing technique made it possible to manufacture accurate forming tools, as described in the first part of the article. The forming tool allowed the bumps of the foil to be shaped without using a hydraulic or mechanical press. The next part of the article focuses on the experimental tests of the developed method. The tests were performed on three bump foils with different geometries. These tests were necessary to examine the repeatability of the shape of the bumps that were formed using the cold pressing. The results of the measurements are presented and discussed in the last part of the paper. Additionally, a numerical analysis was carried out and confirmed that all the steps of the plastic working process were performed correctly. The proposed method is very effective in forming foil bumps of practically any shape, with excellent accuracy and repeatability. The developed method allows for obtaining the desired shape of the bump foil in order to improve the static and dynamic properties of the foil bearing and the rotating system. In the near future, the proposed method can be considered for larger-scale production. (C) 2020 CIRP.

箔片轴承是一种气动式气体轴承，近年来在高速无油涡轮机（如微型涡轮或涡轮膨胀器）中得到越来越广泛的应用。制约此类轴承快速发展的因素之一是生产难度。本文介绍了制造新型凸点箔片——箔片轴承关键部件的连续工艺步骤。采用名为MultiJet打印的三维（3D）打印技术制造了高精度的模具工具。所选增材制造技术的新应用使得能够精确制造成型模具，如文章第一部分所述。该成型模具使无需使用液压或机械压力机即可形成箔片上的凸点。文章第二部分则聚焦于所开发方法的实验测试。测试在三种不同几何形状的凸点箔片上进行，旨在验证冷压成型过程中所生成凸点形状的可重复性。测量结果在论文最后部分进行了展示和讨论。此外，还进行了数值分析，确认了塑料加工过程的每一步均正确执行。所提出的方法在形成几乎任何形状的箔片凸起方面非常有效，具有优异的精度和重复性。该方法可实现对凸起箔片所需形状的精确控制，从而改善箔片轴承及旋转系统的静态与动态性能。在不久的将来，该方法有望应用于大规模生产。（C）2020 CIRP
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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