Current surface issues in additive manufacturing,Plasma Processes and Polymers

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Current surface issues in additive manufacturing
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2019-11-11 , DOI: 10.1002/ppap.201900154
Julien Magnien ₁ , Patrick Cosemans ₁ , Nicolas Nutal ₁ , Thomas Kairet ₁

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Additive manufacturing (AM), the 30‐year‐old method, to make parts by stacking thin layers of a raw material‐like powder is still in evolution. Among the drawbacks of AM, surface quality is often reported, especially when the raw material is powder. The roughness, Ra, can vary between 10 and 20 µm, with a peak‐to‐valley distance which can reach 0.2 mm, depending on the AM technology. This has an impact on mechanical properties, especially on fatigue. One of the approaches to attain the surface requirements is dedicated post‐treatment. The present paper investigates the origin of AM roughness to highlight the need for suitable post‐treatment.

中文翻译：

增材制造中的当前表面问题

已有30年历史的增材制造（AM），它是通过堆叠薄薄的原材料状粉末来制造零件的，目前仍在发展中。在增材制造的弊端中，经常报告表面质量，特别是当原料是粉末时。粗糙度，ř一个，可以在10和20微米之间变化，具有峰-谷距离可达到0.2mm时，取决于AM技术。这会影响机械性能，尤其是疲劳。达到表面要求的方法之一是专用的后处理。本文研究了AM粗糙度的起源，以突出对合适的后处理的需求。

更新日期：2019-11-11

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