The development of FSW technology in terms of the possibility of creating a device for manual repair of broken plating
By Filip Parol (Warsaw University of Technology), Dominik Glowacki (Warsaw University of Technology), Artur Moscicki (Warsaw University of Technology)

The reason for conducting research on Friction Stir Welding was the desire to develop FSW technology at the home institute. These actions were taken in an attempt to create a method for repairing tin sheeting, which would require a welding tool which itself produces the required low downforce. A research stand was created and many series of tests of various welding parameters were carried out: tool rotation speed, tool geometry, feed velocity as well as the effect of heating the tool with an external heat source.

Development of proper tool and processing parameters was made with help of [1] and [2]. The samples from each experiment series were tested in terms of basic mechanical behaviour as well as fatigue. The results show good weld mechanical properties and a significant decrease in the required downforce for the optimised tool shapes, which suggests that it will be possible to create a device for fixing cracked sheets directly on the object, which will be the subject of further research.

References:
1. Dhanesh G. Mohan, S. Gopi (2018): Induction assisted friction stir welding: a review, Australian Journal of Mechanical Engineering 2. R.S. Mishra, Z.Y. Ma Friction stir welding and processing, Materials Science and Engineering R 50 (2005) 1-78