Laser-welded assembly
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsFumiyasu Yamabuki, Hideo Nakamura
Life of this patent
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Abstract
A metal member and a resin member, or two resin members are welded or bonded to each other at welding or bonding surfaces thereof which are heated by irradiation of a laser beam, thereby providing an assembly wherein the two members are fluid-tightly bonded at the bonding surfaces. The laser beam is transmitted through a laser transmitting resin, and a laser absorbing material which is in contact with the laser transmitting resin is irradiated with the laser beam, so that the laser absorbing material is heated, whereby the laser transmitting resin and the laser absorbing resin are melted owing to the heat. By moving the spot of the laser beam, portions of the resin members to be heated and melted displace, and the resin materials are melted and then solidify.
Claims28
An assembly comprising a base body, a first member fixed to one surface of the base body, and a second member fixed to the first member, wherein
- the base body is formed of a laser non-transmitting material, a part of the first member located nearer to the base body is formed of a thermoplastic resin having laser transmitting property while a part of the first member located nearer to the second member is formed of a laser non-transmitting material, and the second member is formed of a thermoplastic resin having laser transmitting property, the first member and the second member being welded to the base body and the first member, respectively.
An assembly comprising a base body, a first member fixed to one surface of the base body, and a second member fixed to the first member, wherein
- the base body is formed of a laser non-transmitting material and the first and second members are formed of a thermoplastic resin having laser transmitting property, the first member being welded to the base body while the second member is welded to the first member with a layer of a laser non-transmitting material being interposed therebetween.
A method of producing an assembly comprising a base body, a first member fixed to one surface of the base body, and a second member fixed to the first member, wherein
- the base body is formed of a laser non-transmitting material, a part of the first member located nearer to the base body is formed of a thermoplastic resin having laser transmitting property while a part of the first member located nearer to the second member is formed of a laser non-transmitting material, and the second member is formed of a thermoplastic resin having laser transmitting property, the base body being irradiated with a laser beam transmitted through the part of the first member located nearer to the base body for thereby welding the first member and the base body to each other while the part of the first member located nearer to the second member is irradiated with a laser beam transmitted through the second member for thereby welding the second member and the first member to each other.
A method of producing an assembly comprising a base body, a first member fixed to one surface of the base body, and a second member fixed to the first member, wherein
- the base body is formed of a laser non-transmitting material and the first and second members are formed of a thermoplastic resin having laser transmitting property, the base body being irradiated with a laser beam transmitted through the first member for thereby welding the first member and the base body to each other while a layer of a laser non-transmitting material interposed between the first and second members is irradiated with a laser beam transmitted through the second member for thereby welding the first and second members to each other.
Dependencies are inferred from the claim text.