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US 11,525,469 B2Granted
Junction structure
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsJunji Fujiwara, Atsuhiro Kawamoto
Life of this patent
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Abstract
A junction structure includes a first metallic material, a second material different in type from the first metallic material, and a welding wire as a third material similar to the first metallic material. The second material is stacked on the first material. The molten metal of the third metallic material is deposited by arc welding into the through part of the second material so as to form a flanged or tapered bead, so that the first and third metallic materials and the second material are fixed together.
Claims12
A junction structure comprising:
- a first metallic material;
- at least one type of different material having a through part, the different material being different in type from the first metallic material, being difficult to be welded to the first metallic material, and being stacked on the first metallic material;
- and
- a molten welding wire comprising a metallic material similar to the first metallic material, the molten welding wire being bonded to the first metallic material by arc welding through the through part along thickness of the first metallic material, the molten welding wire being deposited into the through part of the different material, and the molten welding wire being deposited, to form a flange portion, onto a region which is on an upper surface of the different material and surrounds the through part,
- wherein
- the different material and the first metallic material are fixed together by a compressive force between the flange portion and the first metallic material, the compressive force being generated when the molten welding wire is solidified and shrunk onto the first metallic material, and
- when the different material has a lower melting point than the first metallic material, the different material has a larger thickness than the first metallic material, and
- wherein
- the different material has a recess containing the through part to be joined to the first metallic material, and
- the recess comprises a first tubular shape and the through part comprises a second tubular shape, the first tubular shape and the second tubular shape being different.
7 more elements
A junction structure comprising:
- a first metallic material;
- at least one type of different material having a through part, the different material being different in type from the first metallic material, being difficult to be welded to the first metallic material, and being stacked on the first metallic material;
- and
- a molten welding wire bonded to the first metallic material by arc welding through the through part along thickness of the first metallic material, the molten welding wire being deposited into the through part of the different material, and the molten welding wire being deposited onto a region which is on an upper surface of the different material and surrounds the through part,
- wherein the different material and the first metallic material are fixed together by a welding process including a plurality of steps each having a different welding method or a different welding condition such that the molten welding wire is fixed to the region surrounding the through part,
- wherein
- the different material has a recess containing the through part to be joined to the first metallic material, and
- the recess comprises a first tubular shape and the through part comprises a second tubular shape, the first tubular shape and the second tubular shape being different.
5 more elements
A junction structure comprising:
- a first metallic material;
- at least one type of different material having a tapered through part, the different material being different in type from the first metallic material, being difficult to be welded to the first metallic material, and being stacked on the first metallic material;
- and
- a molten welding wire bonded to the first metallic material by arc welding through the through part along thickness of the first metallic material, and the molten welding wire being deposited into the through part of the different material so as to form a flanged or tapered bead, so that the different material and the first metallic material are fixed together,
- wherein
- the different material has a recess containing the through part to be joined to the first metallic material, and
- the recess comprises a first tubular shape and the through part comprises a second tubular shape, the first tubular shape and the second tubular shape being different.
4 more elements
Dependencies are inferred from the claim text.