Two-surface friction stir welding method and device, and tool set for two-surface friction stir welding
A friction stirring and joining method technology, applied in manufacturing tools, welding equipment, metal processing equipment, etc., can solve problems such as difficulty in applying surface pressure, deterioration of joint quality, poor joint, etc., to reduce operating costs, increase softening area, Effect of preventing heat loss
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[0141] Embodiments of the present invention will be described below with reference to the drawings.
[0142] figure 1 and figure 2 It is an enlarged cross-sectional view of a tool tip portion of a tool set for double-sided friction stir welding according to an embodiment of the present invention, figure 1 Indicates the state of use of the tool set at the time of engagement, figure 2 Indicates the dimensional relationship of each part. The form of joining is, for example, butt welding. In addition, in this specification, a joint part means the part which should join two metal plates, and corresponds to a butt joint part in butt welding, and corresponds to an overlapping part in lap welding.
[0143] exist figure 1 and figure 2In this embodiment, the tool set for double-sided friction stir welding has first and second rotary tools 3 and 4, and the first and second rotary tools 3 and 4 are arranged facing each other at the joint of two metal plates 1 and 2. The surfa...
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