Purpose

This study aims to produce lubricating surfaces with micro-channels by the selective laser melting (SLM) method, and to investigate their tribological behavior.

Design/methodology/approach

In this study, three kinds of samples with different geometries were designed, impregnated with oil and then subjected to flow analysis in a virtual environment using Ansys Fluent software. According to the results of these analyses, the best-lubricated surface geometry sample was identified, and a number of geometries were produced by SLM, which is one of the additive manufacturing methods. Tribological tests were performed using a pin-on-disk tribometer with a stainless steel ball as the contact surface. The structural and morphological features were investigated by a three-dimensional profilometer and scanning electron microscopy.

Findings

The results obtained showed that the impregnated oil reached the surface of the sample compared to untreated samples, and it was seen that the wear rates were reduced, and that the impregnated oil samples exhibited the highest wear resistance.

Originality/value

In this study, solid geometries that are difficult to be produced by other methods are produced with additive manufacturing method, and the surfaces have been given lubricating properties.

中文翻译：

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用选择性激光熔化 (SLM) 方法确定具有润滑微通道的 316L 不锈钢的摩擦学行为

目的

本研究旨在通过选择性激光熔化 (SLM) 方法生产具有微通道的润滑表面，并研究其摩擦学行为。

设计/方法/方法

在这项研究中，设计了三种不同几何形状的样品，用油浸渍，然后使用 Ansys Fluent 软件在虚拟环境中进行流动分析。根据这些分析的结果，确定了最佳润滑的表面几何形状样本，并且通过 SLM（增材制造方法之一）生产了许多几何形状。使用以不锈钢球作为接触面的销盘式摩擦计进行摩擦学测试。通过三维轮廓仪和扫描电子显微镜研究结构和形态特征。

发现

所得结果表明，与未处理样品相比，浸渍油到达样品表面，磨损率降低，并且浸渍油样品表现出最高的耐磨性。

原创性/价值

在这项研究中，使用增材制造方法生产其他方法难以生产的固体几何形状，并赋予表面润滑性能。