Cold-pressure welding method and metal product welded by the method
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Sumiden Asahi Industries, Ltd.
InventorsKunihiko Watanabe, Toshiaki Suzuki, Shiko Kodama
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Abstract
A welded metal product includes a first metal plate having a first surface and a second surface opposed to the first surface; and a second metal plate being cold-pressure welded with the second surface of the first metal plate by directly pressing the first metal plate with the die. The first surface has a recess portion which is deformed by directly pressing with a die. A hardness of the first metal plate is greater than a hardness of the second metal plate.
Claims4
A cold-pressure welding method for producing a welded metal product, comprising:
- piling a plurality of metal plates different in hardness together;
- pressing the metal plates by a die in a direction intersecting surfaces of the metal plates;
- and
- welding and deforming the metal plates so as to form a recess portion, wherein one metal plate having a greater hardness of the metal plates different in hardness is disposed on a surface side of the metal plates toward which the die presses.
A welded metal product comprising:
- a plurality of metal plates different in hardness together being piled to be pressed by a die in a direction intersecting surfaces of the metal plates, so that the metal plates are welded and deformed so as to form a recess portion, wherein
- one metal plate having a greater hardness of the metal plates different in hardness is disposed on a surface side of the metal plates toward which the die presses.
A cold-pressure welding method comprising:
- piling a plurality of metal plates different in hardness;
- pressing at least one metal plate having a greater hardness of the metal plates different in hardness by a die in a direction intersecting surfaces of the metal plates so that the metal plates are cold-pressure welded and deformed to form a recess portion on a pressed surface side of the metal plates.
A welded metal product comprising:
- a first metal plate having a first surface and a second surface opposed to the first surface, the first surface having a recess portion which is deformed by directly pressing with a die;
- and
- a second metal plate being cold-pressure welded with the second surface of the first metal plate by directly pressing the first metal plate with the die, wherein a hardness of the first metal plate is greater than a hardness of the second metal plate.
Dependencies are inferred from the claim text.