PLATES OF METAL WERE WELDED TOGETHER USING FRICTION PRODUCED BETWEEN THEM

1. A BRIEF STUDY OF
Represented By:
Name : ABHINASH JENA
Branch : MECHANICAL
Regd : 1901289391
Year : 4th
Sem : 7th
FRICTION
STIR
WELDING

2. CONTENTS
• Introduction
• Definition
• Terminologies
• Process
• Zones Affected
• Tool Nomenclature
• W/P Material
• Applications
• Benefits
• Limitations
• Conclusions

3. INTRODUCTION
• Before dive into it first we need to be known about all those terms which it includes. So, now
let’s talk about them;
FRICTION:
• It is the force obstructing the relative motion of solid surfaces, when they sliding against
each other. Thus, this force can convert the kinetic energy into heat energy.
WELDING:
• It is a process of joining two or more similar or dissimilar metals melt by heating above &
below the melting point.
• It can be done by bringing pressure or without pressure.

4. DEFINITION
 This technique was invented at the welding institute of the United Kingdom in 1991.
 It is a solid-state joining process that uses a non-consumable tool to join two facing workpieces.
 The heat is generated by friction between the rotating tool and the workpiece material, which leads to a
softened region near the FSW tool.
 While the tool is traversed along the joint line, it mechanically intermixes the two pieces of metal.
 So, it’s a combination of friction, welding and the linear as well as rotational motion of the tool.

5. TERMINOLOGIES

6. PROCESS STEPS

7. ZONES AFFECTED

8. TOOL NOMAINCLATURE
Tool Shank

9. W/P MATERIAL
• 2024 Aluminium Alloy-:
 It is an aluminum alloy with copper as primary alloying agent.
 High strength to weight ratio as well as good fatigue resistance.
 It is used in aircraft especially wing & fuselage.
• 5083 Aluminium Alloy-:
 It is an aluminum alloy with magnesium
 Highly resistance attack by sea water & having highest strength.
 It is used in ship building, pressure vessels, drilling rigs etc.
• 6082 Aluminium Alloy-:
 It is an alloy in wrought aluminum-magnesium-silicon .
 It is formed by extrusion & rolling but not used in casting.
 It is used in bridges ,cranes, trusses etc.

10. APPLICATIONS
This welding process is widely used in fabrication industries & also
used in such following industries:
1. Aircraft Industries:
For welding wings, fuel tanks, aircraft structure etc.
marine industries for structure work.
2. Automotive Industries:
To weld wheel rims, chassis, fuel tanks and other structure work.
3. Chemical Industries:
For joining pipelines, heat exchanger, air conditioner etc.
4. There are also robotics , aerospace industries who use this
process

11. BENEFITS
 It is a solid state welding so does not use flux, filler metal etc.
 FSW can be used to weld both similar and dissimilar metals.
 Fine grain size and quality weld can be obtain by this process
 Lower power consumption due to absence of external heating.
 Highly automated.
 Little maintenance required.
 Large welding joint design available and it can weld in all direction.
 Easy to operate and does not involve any environmental pollution.

12. LIMITATIONS
 Complicated or special fixture arrangement required.
 It creates a visible hole in welding plates.
 High initial or setup cost.
 It is less flexible compare to arc welding process.
 FSW cannot make filler joints.
 Non Forgeable material cannot be weld.

13. CONCLUSION
 Basically we get butt joint through it.
 It is a promising process for welding and has clear advantages in terms of
mechanical properties of the welded material.
 It has already found great applications in different industries as we have
discussed but still there are r&d process going on for the further development
& deployment.

14. THANK YOU