Effects of welding parameters on friction stir spot welding of high density polyethylene sheets

被引：74

作者：

Bilici, Mustafa Kemal ^{[1
]}

Yukler, Ahmet Irfan ^{[1
]}

机构：

[1] Marmara Univ, Dept Mat Technol, TR-34722 Istanbul, Turkey

来源：

MATERIALS & DESIGN | 2012年 / 33卷

关键词：

ALUMINUM-ALLOYS; STATIC STRENGTH; AUTOMOTIVE APPLICATIONS; TOOL GEOMETRY; RESISTANCE;

D O I：

10.1016/j.matdes.2011.04.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Friction stir spot welding parameters affect the weld strength of thermoplastics, such as high density polyethylene (HOPE) sheets. The effects of the welding parameters on static strength of friction stir spot welds of high density polyethylene sheets were investigated. For maximizing the weld strength, the selection of welding parameters is very important. In lap-shear tests two fracture modes were observed; cross nugget failure and pull nugget failure. The tool rotational speed, tool plunge depth and dwell time were determined to be important in the joint formation and its strength. The joint which had a better strength fails with a pull nugget failure morphology. Weld cross section image analysis of the joints were done with a video spectral comparator. The plunge rate of the tool was determined to have a negligible effect on friction stir spot welding. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：545 / 550

页数：6

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