Aluminum weldment and method of welding aluminum workpieces
AssigneesHonda Giken Kogyo Kabushiki Kaisha, Showa Aluminum Corporation
InventorsShinji Okabe, Takashi Iwasa, Takushi Irie, Yuichi Furukawa, Ichiro Iwai
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Abstract
An aluminum weldment is produced by resistance-welding aluminum workpieces, and has a nugget formed between the aluminum workpieces which contains more magnesium than the base material of the aluminum workpieces. The nugget contains 5.about.17 wt % of magnesium which forms a solid solution with aluminum.
Claims14
An aluminum weldment comprising aluminum workpieces resistance-welded to each other and a nugget formed between said aluminum workpieces, said nugget containing 7 to 17 wt % of magnesium and said nugget containing more magnesium than the base material of the aluminum workpieces.
A method of resistance-welding a plurality of aluminum workpieces, comprising the steps of:
- superposing the aluminum workpieces with an insert interposed between faying surfaces thereof, said insert being made of a material selected from the group consisting of magnesium, a magnesium alloy;
- and an aluminum-magnesium alloy containing 40 wt % or more of magnesium;
- and
- supplying a welding current through said aluminum workpieces and said insert.
A method of resistance-welding a plurality of aluminum workpieces, comprising the steps of:
- superposing the aluminum workpieces;
- and
- supplying a welding current through said aluminum workpieces to form a nugget therebetween, said nugget containing 6.about.17 wt % of magnesium, and at least one of 0.05.about.10 wt % of copper, 0.05.about.10 wt % of silicon, and 0.05.about.10 wt % of zinc.
A method of resistance-welding a plurality of aluminum workpieces, comprising the steps of:
- superposing the aluminum workpieces with an insert interposed between faying surfaces thereof, said insert being made of a material selected from the group consisting of magnesium, a magnesium alloy, and an aluminum--magnesium alloy containing 15 wt % or more of magnesium, at least one of said insert and said aluminum workpieces containing at least one of 0.05.about.10 wt % of copper, 0.05.about.10 wt % of silicon, and 0.05.about.10 wt % of zinc;
- and
- supplying a welding current through said aluminum workpieces and said insert.
Dependencies are inferred from the claim text.