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FRICTION STIR WELDING TOOL AND PROCESS FOR WELDING DISSIMILAR MATERIALS
FRICTION STIR WELDING TOOL AND PROCESS FOR WELDING DISSIMILAR MATERIALS
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机译:摩擦搅拌焊接工具和异种材料的焊接工艺
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摘要
A friction stir welding tool and process for lap welding dissimilar materials are detailed. The invention includes a cutter scribe that penetrates and extrudes a first material of a lap weld stack to a preselected depth and further cuts a second material to provide a beneficial geometry defined by a plurality of mechanically interlocking features. The tool backfills the interlocking features generating a lap weld across the length of the interface between the dissimilar materials that enhances the shear strength of the lap weld.
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