Influence of tool rotational and transverse speed on friction stir welding of dissimilar aluminum 6061 composites

被引：6

作者：

Uday, K. N. ^{[1
]}

Rajamurugan, G. ^{[1
]}

机构：

[1] Vellore Inst Technol, Sch Mech Engn, Vellore 632014, Tamilnadu, India

来源：

MATERIALS LETTERS | 2022年 / 329卷

关键词：

Aluminum; Friction stir welding; Nugget zone; Thermomechanical affected zone; Heat affected zones; MECHANICAL-PROPERTIES;

D O I：

10.1016/j.matlet.2022.133182

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study friction stir welding of dissimilar aluminum 6061 composite is performed. The Al 6061 with B4C and Al 6061 with Cr2O3 composite were fabricated using stir casting. B4C and Cr2O3 were reinforced in steps of 2, 4, and 6 wt%. The stirring time and stirring speed was maintained common throughout the casting. The preheating temperature of mold and reinforcement is 400 degrees C and 600 degrees C respectively. The response surface methodology based design matrix is utilized to perform the welding. The three tool rotational speed and tool transverse speed is used during welding, keeping same weight percentage composite on either side. The Wshaped hardness profile is seen in welding zone having maximum microhardness of 65 HV at nugget zone and minimum microhardness 52 HV at heat affected zones. When the tool transverse speed is increased from 20 to 25 mm/min, an increase in ultimate tensile strength of 59 % is observed.

引用

页数：4

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