Friction Stir Welding

CONTENTS

|Sr. No. |Page Title |Page No. |

|1. |Introduction |3 |

|2. |Why FSW |6 |

|3. |Friction stir welding Tool Materials |7 |

|4. |Friction Stir Tool Design |15 |

|5. |Advantages |26 |

|6. |Disadvantages |27 |

|7. |Applications |28 |

|8. |Conclusion |30 |

|9. |References |31 |

List of Figures and Tables

|Sr. No. | Name |Page No. |

|1.1 |Schematic drawing of friction stir welding |3 |

|1.2 |Process description of FSW |4 |

|1.3 |Schematic cross–section of a typical FSW weld showing four distinct zones |5 |

|4.1 |Different shoulder features used to improve material flow and efficiency |16 |

|4.2 |Scrolled shoulder tool |17 |

|4.3 |Convex shoulder having either (a) curved...