Purpose

This study aims is to investigate the correlation between tribological and mechanical properties of the fused filament fabrication 3D-printed acrylonitrile butadiene styrene (ABS) pin with different internal geometries.

Design/methodology/approach

The tribological properties were determined by a dry sliding test with constant test parameters, while the hardness and modulus of elasticity were determined by microhardness and compression tests.

Findings

Although the internal geometry of the pin sample slightly affects the coefficient of friction (COF) and the wear rate of the 3D-printed ABS, it was important to design a lightweight tribo-component by reducing the material used to save energy without compromising the strength of the component. The COF and wear rate values are relatively dependent on the elastic modulus. A 3D-printed ABS pin with an internal triangular flip structure was found to have the shortest run-in period and the lowest COF with high wear resistance. Abrasive wear and delamination are the predominant wear mechanisms involved.

Research limitations/implications

The findings are the subject of future research under various sliding conditions by investigating the synergistic effect of sliding speeds and applied loads to validate the results of this study.

Originality/value

The internal structure affects the mechanical properties and release stress concentration at the contact point, resulting in hypothetically low friction and wear. This approach may also reduce the weight of the parts without scarifying or at least preserving their preceding tribological performance. Therefore, based on our knowledge, limited studies have been conducted for the application of 3D printing in tribology, and most studies focused on improving their mechanical properties rather than correlating them with tribological properties that would benefit longer product lifespans.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-04-2020-0143/

中文翻译：

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熔丝制造3D打印丙烯腈丁二烯苯乙烯的内部几何结构的摩擦机械性能的相关性

目的

这项研究的目的是研究具有不同内部几何形状的熔丝制造3D打印的丙烯腈丁二烯苯乙烯（ABS）销的摩擦学性能和机械性能之间的相关性。

设计/方法/方法

摩擦性能通过具有恒定测试参数的干式滑动试验确定，而硬度和弹性模量则通过显微硬度和压缩试验确定。

发现

尽管针状样品的内部几何形状会稍微影响3D打印ABS的摩擦系数（COF）和磨损率，但重要的是通过减少用于节省能源而不牺牲强度的材料来设计轻巧的摩擦组件组件的。COF和磨损率值相对取决于弹性模量。发现具有内部三角形翻转结构的3D打印ABS销具有最短的磨合期和最低的COF，且具有高耐磨性。磨料磨损和分层是主要的磨损机理。

研究局限/意义

通过研究滑动速度和施加载荷的协同效应以验证本研究的结果，这些发现是未来在各种滑动条件下的研究主题。

创意/价值

内部结构会影响机械性能并释放接触点处的应力集中，从而导致假设的低摩擦和磨损。这种方法还可以减轻零件的重量，而不会擦伤或至少保持其先前的摩擦学性能。因此，根据我们的知识，对于3D打印在摩擦学中的应用进行了有限的研究，并且大多数研究都集中在提高其机械性能上，而不是将它们与有利于延长产品使用寿命的摩擦学性能相关联。

同行评审

本文的同行评审历史记录可在以下网址获得：https://publons.com/publon/10.1108/ILT-04-2020-0143/