| نویسندگان | سعید امینی-محمدرضا امیری-علیرضا بارانی |
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| تاریخ انتشار | ۲۰۱۴-۸-۰۱ |
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| نوع نشریه | الکترونیکی |
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| نمایه نشریه | ISI |
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چکیده مقاله
In this paper, effect of pin position (relative to tool
shoulder position) on welded joint in friction stir welding
(FSW) of aluminum 5083-O was investigated. FSW is a
new solid-state welding process used to join metals and alloys
(especially unweldable aluminums). To do this study, a FSW
process was prepared by designing and fabricating tool and
workpiece fixture and installing them on a milling machine.
Then, some experiments were performed using the tool with a
pin coaxial with the axis of tool shoulder. Hence, the tool
enters edges of joint location and moves along joint line.
Achieved results showed heat generation, severe plastic deformation,
and material displacement in joint location which
led to completeness of joint’s edges. It was also found that the
tool temperature for tools with half pin and arched pin had a
significant increase with the increase of rotational speed.
Tools with more ability of mixing materials and forging of
transferred material from the front of the pin to its back
showed more ultimate tensile strength.