Method of manufacturing terminal-attached electric wire and terminal-attached electric wire

A method of manufacturing a terminal-attached electric wire, the method comprising:

• installing an electric wire including a core wire including a plurality of element wires having electrically conductive properties to a terminal having a base part extending in an axial direction along an axis line of the electric wire and a conductor coupling part having a pair of barrel pieces respectively extending, from both sides of the base part, in both sides in a circumferential direction around the axis line, the core wire being installed between the pair of barrel pieces;
• bending the pair of barrel pieces to cause the pair of barrel pieces to wrap around and cover the core wire in the circumferential direction to form a slit extending in the axial direction between the pair of barrel pieces, with respect to the circumferential direction;
• melting the element wires of the core wire by emitting laser light toward the core wire through the slit;
• and
• adhering the element wires melted with the laser light to the conductor coupling part.