STUDIES ON EFFECT OF TOOL SHOULDER GEOMETRY ON MECHANICAL PROPERTIES OF FRICTION STIR WELDED 6082 T6 ALUMINIUM ALLOY
Author(s):
A.DANIEL, K.VENKATESAN, D.NOORULLAH
Keywords:
AA 6082 T6, Friction Stir Welding, Pin Profile, Tool Shoulder Geometry.
Abstract
In Friction stir welding tool, geometry plays a critical role in material flow and governs the transverse rate at which FSW can be conducted. 6082 T6 AA is a medium strength aluminium alloy with excellent corrosion resistance. It has the highest strength of 6XXX series alloys and it is most commonly used for machining. The tool serves three primary functions, i.e., (a) heating of the work piece, (b) movement of material to produce the joint, and (c) containment of the hot metal beneath the tool shoulder. Heating is created within the work piece by friction between both the rotating tool pin and shoulder and by severe plastic deformation of the work. The function of the tool shoulder is to provide heat by application of a large compressive force and tool rotation over the surface of the material being welded and to contain the softened, plasticized metal beneath it. Understanding the temperature generation around the tool shoulder contact is one of the important aspects of the friction stir welding process. In the present study, the effects of tool profile geometry as Taper cylindrical, Cylindrical Concave, Convex and Square tool on the and mechanical properties of the 6082 T6 aluminium alloy using FSW.
Article Details
Unique Paper ID: 166668

Publication Volume & Issue: Volume 11, Issue 2

Page(s): 1452 - 1458
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