Laser welding method
AssigneeSumitomo Electric Industries, Ltd.
InventorKazuo Nakamae
Life of this patent
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Abstract
The present invention relates to a laser welding method of welding an electrode and a cable core to each other satisfactory by irradiation of a laser beam, even when the core is thin and the area of the electrode is small. The laser welding method welds on a substrate the electrode and the core of a coaxial cable to each other by irradiation of the laser beam. The core is sandwiched between a pressing member and the electrode, while the electrode and the core are brought into contact with each other at a connection section. The pressing member is a member that is transparent to the processing laser beam. A part of the core is molten by radiating the laser beam from the pressing member side. As a result, the electrode and the core are connected with each other.
Claims9
A laser welding method of welding an electrode and a cable core to each other by irradiation of a laser beam, the method comprising the steps of:
- bringing the electrode and the core into contact with each other at a connection section;
- pressing a pressing member, which is comprised of a material transparent to the laser beam, against the electrode to sandwich the core between the pressing member and the electrode;
- and
- melting a part of the core by radiating the laser beam from the pressing member side, to connect the electrode and the core with each other,
- wherein the laser beam is radiated in a state in which a metallic thin layer having a melting point lower than that of copper is disposed between the core and the pressing member.
Dependencies are inferred from the claim text.