Embedded stirring friction spot welding method
A friction stir and embedded technology, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of affecting the service life of stirring tools, poor appearance of joints, wear of "needle" parts, etc.
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[0043] The invention discloses an embedded friction stir spot welding method, which is particularly suitable for the overlap connection of aluminum (magnesium) and high melting point, harder dissimilar metal materials (such as carbon steel, stainless steel, copper, titanium, etc.). Here is an example (taking the more economical aluminum plate and steel plate as an example) to illustrate how to implement embedded friction stir spot welding, and introduce the test results of the welded joint performance to prove the practicability of the present invention.
[0044] An embedded friction stir spot welding method. First, a hole 4 is provided on the second base material 2; then, the first base material 1 is placed on the harder second base material 2, and the second base material is assembled in the form of overlap. A base material 1 and a second base material 2; finally, the needle-free stirring head 3 is rotated and the needle-free stirring head 3 is in contact with the surface of the...
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