Material for laser welding and laser welding method
AssigneeUbe Industries, Ltd.
InventorsTsutomu Katayama, Yasuharu Fukui, Shigenari Takeda
Life of this patent
Estimating the term…
Abstract
A laser welding material and laser welding method which can satisfactorily weld resin members of different resin materials that have no or little adhesive property is provided and includes a set of resin materials constituting a first resin member, a second resin member and a third resin member in which the first resin member and the second resin member are different materials and the first resin member does not absorb laser light and which is used for laser-welding the three members by overlapping the third resin member with the first and second resin members and irradiating laser light to the three members from the first resin member side, and a layer welding method.
Claims19
A set of laser weldable materials constituting a first resin member, a second resin member and a third resin member in which the first resin member and the second resin member are different materials, the first resin member is non-absorptive of laser light and the second resin member is absorptive of laser light and which is used for laser-welding the three members by overlapping the third resin member with the first resin member and the second resin member and irradiating laser light to the three resin members from said first resin member side, wherein the material constituting the first resin member comprises a first resin non-absorptive of laser light, the material constituting the second resin member comprises a second resin and an additive absorptive of laser light, and the material constituting the third resin comprises a polymer having at least one constitutional unit the same as or analogous to the constitutional unit of the first resin and at least one constitutional unit the same as or analogous to the constitutional unit of the second resin.
A set of laser weldable materials constituting a first resin member, a second resin member and a third resin member, respectively, in which the first resin member and the second resin member are different materials and the first resin member is non-absorptive of laser light and which is used for laser-welding the three members by overlapping the third resin member with the first resin member and the second resin member and irradiating laser light to the three resin members from said first resin member side, wherein the material constituting the first resin member comprises a first resin non-absorptive of laser light, the material constituting the second resin member comprises a second resin, the material constituting the third resin member comprises a third resin and an additive absorptive of laser light, and the third resin comprises a polymer having at least one constitutional unit the same as, or analogous to, the constitutional unit of the first resin and at least one constitutional unit the same as, or analogous to, the constitutional unit of the second resin.
(canceled)
A laser welding method comprising overlapping a third resin member with a first resin member and a second resin member, which are different materials and in which the first resin member is non-absorptive of laser light and the second resin member is absorptive of laser light, and irradiating laser light from said first resin member side to laser-weld the three members, wherein the third resin member comprises a third resin and an additive absorptive of laser light, and the third resin comprises a polymer having at least one constitutional unit the same as or analogous to the constitutional unit of the first resin and at least one constitutional unit the same as or analogous to the constitutional unit of the second resin.
A laser welding method comprising overlapping a third resin member with a first resin member and a second resin member, which are different materials and in which the first resin member is non-absorptive of laser light, and irradiating laser light from said first resin member side to laser-weld the three members, wherein the third resin member comprises a third resin and an additive absorptive of laser light, and the third resin comprises a polymer having at least one constitutional unit the same as or analogous to the constitutional unit of the first resin and at least one constitutional unit the same as or analogous to the constitutional unit of the second resin.
Dependencies are inferred from the claim text.