Development Of Multi-Component Loads, Torque And Temperature Measurement Device For Friction Stir Welding Process
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Date
2013-12
Authors
Khairuddin, Jauhari Tahir
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Friction stir welding process is a solid state joining method that utilizes heat
source from mechanical friction work of a rotational tool exerted on work material,
producing joint without the use of filler material. Since its introduction, friction stir
welding is still at infant stage compared to conventional fusion joining method. The
welding process fundamental is still not well established, lack in standard practicing
guideline and optimum operating conditions for typical material application as well
as inability to definitively relate process variables to the produced joint properties.
The basis of this study is regarding to the mechanical work principle of the welding
process, which is devised through measurement method as a mean to look for the
possible benefits of improved joint mechanical properties. This study presents the
analysis of welding parameters responses via a metrology system which measure the
dynamic and quasi-static multi components three dimensional loads, torque exerted
and to capture the corresponding temperature profile. The measured loads and torque
represent the acting reaction forces suggesting its influences on joint physical
properties based on welding parameters variables. In addition, a mathematical model
is derived to approximate the welding process based on the work material
temperature-dependent material properties, employed to validate the metrology
system. Contact mechanic principle is adapted into the model accounting both
Coulomb’s friction and plastic deformation principle. Proceeding, heat transfer
within the system is studied through experimental work. The relationship of the
measured loads and torque with the corresponding temperature shows the possibility
to control the process variables.
Description
Keywords
Multi-Component , Torque And Temperature