Record number :
1073810
Title of article :
Spot friction stir welding of low carbon steel plates preheated by high frequency induction
Author/Authors :
Y.F. Sun، نويسنده , , J.M. Shen b، نويسنده , , Y. Morisada، نويسنده , , H. Fujii، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2014
Pages :
8
From page :
450
To page :
457
Abstract :
In this study, high frequency induction heating assisted spot friction stir welding was applied to 1.6 mm thick S12C low carbon steel plates. With the same welding parameter including an applied load of 2500 kg, rotation speed of 800 rpm and dwell time of 2 s, the average grain size in the stir zone slightly increased from 12.9 μm for the welds without preheating to 14.8 μm when 10 s preheating was used. However, larger joint interface was formed within the stir zone of the welds with preheating and therefore the bonding strength can be significantly increased. As a result, the shear tensile load of the joint increased from 8 kN to12.4 kN with preheating and the joint fractured through the plug failure mode rather than interfacial failure mode. It was revealed that the frictional heat generated between the rotating tool and the work-piece can be reduced to obtain sound welds by means of high frequency induction preheating.
Keywords :
Shear tensile test , Spot friction stir welding , Preheating
Journal title :
Materials and Design
Serial Year :
2014
Link To Document :
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