A Novel Approach to Friction Surfacing: Experimental Analysis of Deposition from Radial Surface of a Consumable Tool
A Novel Approach to Friction Surfacing: Experimental Analysis of Deposition from Radial Surface of a Consumable Tool
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一种摩擦堆焊的新方法：自耗工具径向表面沉积物的实验分析
DOI：
10.3390/coatings10111016
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发表时间：
2020-11-01
期刊：
影响因子：
3.4
通讯作者：
Miller, Scott F.
中科院分区：
文献类型：
--
作者：
Seidi, Ebrahim;Miller, Scott F.
摩擦堆焊技术是一种先进的方法，用于在相似或不相似的材料基底表面上形成各种材料的涂层。在这种方法中，没有外部热源，这种方法所需的所有热能都是通过摩擦产生的。本文介绍了一种新型的自耗工具侧面摩擦堆焊方法。该技术最显着的区别是材料转移将从消耗性工具的径向表面发生，而不是像传统摩擦表面那样从工具的末端发生。在横向摩擦堆焊中，旋转的可消耗工具的侧面被压靠在基底表面上，这在工具和基底之间的界面处产生摩擦热和剪切力。当工具移动经过时，工具材料层从可消耗杆转移到基底表面。本研究以6063铝合金及AISI 1018碳钢分别作为自耗工具及基材。详细讨论了工艺因素、表面粗糙度值、工具质量损失和沉积厚度的影响。这项研究的实验结果表明，横向摩擦堆焊产生一个非常光滑的超薄沉积与全覆盖，涂层的粗糙度值在1 μ m的顺序。此外，在该技术中没有形成飞边，这减少了材料消耗。此外，在自耗工具和工件之间的界面处的温度被测量为低于在摩擦堆焊从工具的端部，这是有益的沉积材料的冶金特性。
The friction surfacing technique is an advanced method for creating coatings of various materials onto the surface of a similar or dissimilar material substrate. In this method, there is no external source of heat energy, and all the heat energy required in this method is generated by friction. In this paper, a novel method of friction surfacing from the side of the consumable tool is introduced. The most significant difference in this technique is that material transfer will occur from the radial surface of the consumable tool as opposed to the end of the tool as in conventional friction surfacing. In lateral friction surfacing, the side of the rotating consumable tool is pressed against the substrate surface, which generates frictional heating and shear forces at the interface between tool and substrate. A layer of tool material is transferred from the consumable rod to the substrate surface as the tool moves across. In this study, 6063 aluminum alloy and AISI 1018 carbon steel are used as the materials of consumable tool and substrate, respectively. The impact of process factors, surface roughness values, tool mass loss, and deposition thickness are discussed in detail. The experimental results of this study reveal that lateral friction surfacing produces a very smooth ultra-thin deposition with full coverage, with coating layers with roughness values in the order of 1 mu m. Additionally, there is no flash formed in this technique which reduces material consumption. Moreover, temperatures at the interface between the consumable tool and workpiece were measured to be lower than for that in friction surfacing from the end of the tool, which is beneficial for the metallurgical characteristics of the deposited material.