Analysis of micro-friction stir welding surfaces using fractal methodologies

被引：5

作者：

Prajapati, Deepak K. ^{[1
]}

Ahmed, Shuja ^{[1
]}

机构：

[1] IIT Patna, Dept Mech Engn, Patna 801106, Bihar, India

来源：

SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES | 2020年 / 8卷 / 03期

关键词：

micro-FSW; Hurst coefficient; surface topography; length-scale fractal analysis; TOPOGRAPHY; PARAMETERS;

D O I：

10.1088/2051-672X/abaeb3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The weld surface produced by micro-friction stir welding (micro-FSW) exhibit multi-scale nature. The surface topography of weld surfaces affects the overall strength of components and significantly changes with process parameters. In this work, multi-scale surface characterization techniques are used to study the surface topography of micro-FSW surfaces. The relation between process parameters and topography parameters is discussed in detail. Length-scale fractal analysis is employed on micro-FSW surfaces, and it is concluded that surface complexity increases with an increase in tool rotational speed. Within the range of process parameters studied, smoothening takes place at higher tool feed. The Hurst coefficient (H), which is an important descriptor of fractal geometry is found to increase with an increase in tool feed.

引用

页数：8

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