Embedded stirring and rubbing slit welding method
A friction stir, embedded technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of unsustainable welding, slow heating/cooling rate, loss of mechanical stirring and mixing effect, etc., to achieve energy saving and cost. Advantages, easy and simple operation, low-cost advantages
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[0025] An example (taking the economical aluminum plate and steel plate as an example) is given below to illustrate how to implement embedded friction stir seam welding, and introduce the test results of the welded joint performance to prove the practicability and innovation of the present invention.
[0026] A commercially available pure aluminum plate with a thickness of 3 mm is selected as the first base material 1; a low-carbon steel plate with a thickness of 4 mm is used as the second base material 2 (the measured thickness is 3.84 mm). Before welding, the dovetail groove 4 is machined with EDM on the steel plate in advance, and the angle of the dovetail groove is 45° and 60°. The width of the upper notch is 4mm, and the depth of the groove is 2mm.
[0027] Assembled by lap joint, put the aluminum plate with low yield strength on the upper side, and put the steel plate with high yield strength on the lower side. Use ordinary milling machine or drilling machine for welding...
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