Inside the high melted temperature material and the execution possible tool is offered friction churning processing of the melted temperature material, friction churning mixture and friction churning welding low, the color this time, it is connected to the shank and the FSW tip/chip by the color and the outer part color, at least, is divided as for the new thermal barrier, is not to be able to make loose the FSW tip/chip in the tool of the temperature which rose facing the expansion of the inside color, with that toward inside, and it is possible to create the pressure to the te FSW tip/chip. Selective figure Figure 6
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