Metallographic results show that: solder the center of the upper part of the metal in the high-speed rotation of the mixing head leading role in the formation of the plastic flow of the flow of metal in the region due to the friction stir effect of the mixing head, and metal internal friction compre

The gold mutually experiments the result enunciation: the 焊 orders the metals of the center upper part Be mixing blend the high speed of the head to revolve of arouse the function descend formation flowing of the 塑 flow, in the meantime the metals of that district is because of being subjected to th

The metallographic test result indicated that,On the spot center metal in stirs the head under the high speed revolving impetus function to form the mobile plastic flow, because simultaneously this region metal receives stirs the head the agitation rubbing effect, with the metal internal friction ex

Metallographic test results indicate that the weld metal in the top center of high speed rotating head of the leading role of plastic flow formation under flow, while the metal due to the head of the regional role of friction stir, and internal friction of metal extrusion and hot, grain size compare

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