Fundamentals of Friction Stir Welding
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Welcome to the course
This course deals with the modern joining method so called Friction Stir Welding. In this course, the learners will gain knowledge of the fundamentals of Friction Stir Welding process, importance of tool design and fabrication of fixture for Friction Stir Welding process. Assignments are given to the learners for developing their understandings in the field of applications of Friction Stir Welding process. As an attachment link to the research papers and study materials are provided.
- Basic knowledge of Mechanical Engineering
- Basic knowledge of welding process
Learners will learn about the following topics:
- Basics of Friction Stir Welding
- Friction Stir Welding metallurgy
- Importance of tool design in Friction Stir Welding process
- Friction Stir Welding of various alloys like aluminum, magnesium, titanium, steel etc
Friction stir welding (FSW) is a relatively new joining process that has been used for high production since 1996. Because melting does not occur and joining takes place below the melting temperature of the material, a high-quality weld is created. This characteristic greatly reduces the ill effects of high heat input, including distortion, and eliminates solidification defects. Friction stir welding also is highly efficient, produces no fumes, and uses no filler material which makes this process environmentally friendly.
Friction Stir Welding process is a thermo mechanical process. This lecture will give you an overview of the working principle of Friction Stir Welding process.
In this lecture learn how Friction Stir Welding process has an advantage over another conventional welding process.
In this lecture learn how different parameters like tool tilt, plunge depth, tool design and tool speed play an important role in Friction Stir Welding process.
Before attempting this quiz, learners are requested to go through session 1 lectures well.
In this lecture you will learn about various phases which divide the Friction Stir Welding process.
In this lecture learn about the factors on which material flow depends and reasons why material flow occurs.
The effect of onion ring on properties is a topic of research for many years and not yet clearly understood. However, it is believed that these rings can have indirect effect on the properties. Under uni-axial stress field, the uniformity of the ring patterns may have no/less effect on the stress distribution across the weld joint. But, any irregularities in the pattern can create substantial changes in stress flow and increases the probability of stress concentration. Stress concentrated regions are subjected to premature failure under stress field.
You are requested to go through the lectures in Session 2 properly before attempting this quiz.
Friction Stir Welding of Aluminum alloys
Friction Stir Welding of copper alloys
Friction Stir Welding of dissimilar alloys