| 摘要 |
#CMT# #/CMT# The process for friction stir welding of two edges of a plane or tubular part with one another using aluminum or its alloy, comprises operating a friction between the two edges to assemble a tool via rotational movements around an axis of rotation, progressively moving the rotative tool along a welding line formed between the edges, and incorporating a material that reacts with oxides and hydroxides with upper and lower surfaces of the edges at a temperature of 300-500[deg] C. The material is present in the form of powder that is obtained by mechanosynthesis. #CMT# : #/CMT# The process for friction stir welding of two edges of a plane or tubular part with one another using aluminum or its alloy, comprises operating a friction between the two edges to assemble a tool via rotational movements around an axis of rotation, progressively moving the rotative tool along a welding line formed between the edges, and incorporating a material that reacts with oxides and hydroxides with upper and lower surfaces of the edges at a temperature of 300-500[deg] C. The material is present in the form of powder that is obtained by mechanosynthesis with aluminum and nickel and/or aluminum and silicon, dispersed between the edges by gravity and projected by cold projection, or in the form of a tape interposed between the edges. #CMT#USE : #/CMT# The process is useful for friction stir welding of two edges of a plane or tubular part with one another using aluminum or its alloy (claimed). #CMT#ADVANTAGE : #/CMT# The process is capable of rapidly and flexibly welding two edges of a plane or tubular part with one another, improves the compactness and mechanical properties of the weld joints, avoids the problem of rootflaw, kissing bond or joint line remanent film, and avoids the formation of oxides and/or hydroxides of aluminum film in the welded thickness. |
