Composite stack-up type stirring friction welding additional material forming technology of large-scale thick-wall cylindrical piece
A technology of friction stir welding and friction stir, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve the problems of coarse grain, multi-material loss, low production efficiency, etc.
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] refer to Figure 1 to Figure 7 , a composite laminated friction stir welding additive forming process for large thick-walled cylindrical parts, characterized in that it includes the following steps:
[0031] 1) Single rolling forming of thin-walled ring parts: use radial-axial hot rolling technology to make thin-walled ring parts, and prepare metal ingots to prepare friction stir welding through blanking, billet making, ring rolling, heat treatment and machining processes. Thin-walled ring monomers required for additive forming;
[0032]2) Thin-walled ring single piece radially stacked friction stir welding additive forming: first, the first thin-walled ring single piece 1a and the second thin-walled ring single piece 1b are fixed on the welding table in the form of coaxial radial stacking butt joint As the workpiece to be welded; then, the welding wire 6 is...
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