Terminal-attached wiring member and method for manufacturing terminal-attached wiring member

Abstract

To enable better connection between a single-core wire and a terminal.SOLUTION: A terminal-attached wiring member 10 includes a terminal 20 including a crimping portion 22, a single-core wire 30 to which the crimping portion 22 is crimped, and a weld bead 40. The weld bead is located along a boundary 42 between the crimping portion and the single-core wire.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a terminal wiring member and a method for manufacturing the terminal wiring member.

Background Art

[0002] Patent Document 1 discloses a crimp terminal including a crimping portion that is crimped to an electric wire, and a sealing portion that is formed at one end of the crimping portion and seals the electric wire crimped to the crimping portion. Patent Document 1 discloses that the joining for sealing is performed by welding.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, it is desired to make the connection between the single-core wire and the terminal better.

[0005] Therefore, an object of the present disclosure is to make the connection between the single-core wire and the terminal better.

Means for Solving the Problems

[0006] The terminal wiring member of the present disclosure is a terminal wiring member including a terminal including a crimping portion, a single-core wire to which the crimping portion is crimped, and a welding bead along the boundary between the crimping portion and the single-core wire.

[0007] Moreover, the method for manufacturing a terminal wiring member of the present disclosure is a method for manufacturing a terminal wiring member, which includes preparing a terminal including a crimping portion and a single-core wire, crimping the crimping portion to the single-core wire, and laser-welding the crimping portion and the single-core wire.

Effects of the Invention

[0008] According to the present disclosure, the connection between the single-core wire and the terminal can be performed better.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0010] [Description of Embodiments of the Present Disclosure] First, the embodiments of the present disclosure will be listed and described.

[0011] The terminal wiring member of the present disclosure is as follows.

[0012] (1) A terminal wiring member including a terminal having a crimping portion, a single-core wire to which the crimping portion is crimped, and a welding bead along the boundary between the crimping portion and the single-core wire.

[0013] According to the present disclosure, the crimping portion is crimped to the single-core wire, and further, the crimping portion and the single-core wire are welded by the welding bead. For this reason, the terminal and the single-core wire are stably connected with low resistance, and the connection between the single-core wire and the terminal can be performed better. In addition, the tensile strength of the single-core wire with respect to the terminal is ensured by the crimping of the crimping portion with respect to the single-core wire.

[0014] (2) The terminal wiring member of (1), wherein the welding bead may be a portion where the crimping portion and the single-core wire are laser welded along their boundary.

[0015] Thereby, the influence of welding can be limited, and the connection between the single-core wire and the terminal can be made better.

[0016] (3) The terminal wiring member of (1) or (2), wherein an annular tip-side boundary between the crimping portion and the single-core wire exists on the tip side of the single-core wire, and the welding bead may be along at least a part of the tip-side boundary.

[0017] Thereby, the welding bead is along at least a part of the tip-side boundary. For this reason, the welding bead can be easily formed by the welding operation from the tip side of the single-core wire.

[0018] (4) The terminal wiring member according to any one of (1) to (3), wherein a portion of the outer peripheral surface of the crimping portion from the axial center portion of the crimping portion toward the tip side of the single-core wire may have a shape in which the same shape is continuous.

[0019] Thereby, it is easy to bring the crimping portion and the single-core wire into close contact with each other on the tip side of the single-core wire. Thereby, the crimping portion and the single-core wire can be welded well on the tip side of the single-core wire.

[0020] (5) The terminal wiring member according to any one of (1) to (4), wherein the terminal is made of copper or a copper alloy, and the single-core wire may be made of aluminum or an aluminum alloy.

[0021] By using a single-core wire made of aluminum or an aluminum alloy, it is possible to reduce the weight and diameter of the terminal wiring member. Further, when using a single-core wire made of aluminum or an aluminum alloy, the single-core wire is difficult to deform during crimping, and moreover, there is a possibility that the strong oxide film on the surface of the single-core wire is not broken. For this reason, only by crimping, it may not be possible to stably connect the terminal and the single-core wire with low resistance. Therefore, by welding the crimping portion and the single-core wire, the oxide film on the surface of the single-core wire is broken, and the crimping portion and the single-core wire are stably connected with low resistance.

[0022] (6)(1) to (5) Any one of the terminal wiring members, wherein the crimping portion may be a closed barrel crimped so that the outer peripheral shape has a polygonal column outer peripheral surface shape.

[0023] If the crimping portion is a closed barrel crimped so that the outer peripheral shape has a polygonal column outer peripheral surface shape, it is easy to compress the single-core wire inside the closed barrel. For this reason, it is easy to firmly crimp and fix the crimping portion to the single-core wire.

[0024] Also, the manufacturing method of the terminal wiring member of the present disclosure is as follows.

[0025] (7) A method for manufacturing a terminal wiring member, which includes preparing a terminal including a crimping portion and a single-core wire, crimping the crimping portion to the single-core wire, and laser welding the crimping portion and the single-core wire.

[0026] According to the present disclosure, the crimping portion is crimped to the single-core wire, and further, the crimping portion and the single-core wire are laser welded. In this way, by adopting a laser welding structure in addition to the crimping structure, the terminal and the single-core wire can be stably connected with low resistance, and the connection between the single-core wire and the terminal can be performed better. Further, the tensile strength of the single-core wire with respect to the terminal is ensured by crimping the crimping portion to the single-core wire.

[0027] [Details of Embodiments of the Present Disclosure] Specific examples of the terminal-attached wiring member and the method for manufacturing the terminal-attached wiring member of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0028] [Embodiment] Hereinafter, the terminal-attached wiring member and the method for manufacturing the terminal-attached wiring member according to the embodiment will be described. FIG. 1 is a side view showing the terminal-attached wiring member 10. FIG. 2 is a front view showing the terminal-attached wiring member 10. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2. FIG. 4 is an enlarged view of part A in FIG. 3.

[0029] The terminal-attached wiring member 10 includes a terminal 20, a single-core wire 30, and a welding bead 40.

[0030] The terminal 20 is a component formed of copper or a copper alloy. The terminal 20 is formed, for example, by press-forming a copper or copper alloy plate material. The terminal may also be formed by cutting out a copper or copper alloy base material.

[0031] If the terminal 20 is formed of copper or a copper alloy, it is rich in springiness compared to aluminum or an aluminum alloy, and thus is suitable for crimp connection. It is not essential that the terminal 20 be formed of copper or a copper alloy, and it may be formed of, for example, aluminum or an aluminum alloy.

[0032] The terminal 20 is a component that connects the single-core wire 30 to a component that serves as a connection destination. In the present embodiment, the terminal 20 has a crimping portion 22 and a mating connection portion 24. The mating connection portion 24 is linearly continuous with the tip side of the crimping portion 22. The portion between the crimping portion 22 and the mating connection portion 24 may be bent.

[0033] The crimping portion 22 is the portion crimped to the single-core wire 30. In the present embodiment, the crimping portion 22 is a crimping portion called a so-called closed barrel. The closed barrel refers to a crimping portion that is continuously cylindrical without a break before and after crimping. The closed barrel may be a portion processed into a cylindrical shape from the beginning, or may be a configuration in which a plate-shaped portion is deformed and joined to form a cylindrical shape. The joining for forming the cylindrical shape may be performed by welding, for example.

[0034] For example, in the state before crimping, the crimping portion 22 is formed in a cylindrical shape. With the single-core wire 30 disposed inside, the crimping portion 22 is compression-deformed so as to reduce the internal space, and it is assumed that the single-core wire 30 is held within the crimping portion 22. The outer peripheral shape of the crimping portion 22 crimped to the single-core wire 30 may be a polygonal prism outer peripheral surface shape (for example, a hexagonal prism outer peripheral surface shape (see FIG. 3)), or may be a flat shape such as an ellipse.

[0035] Even if the crimping portion 22 is crimped to have a polygonal prism outer peripheral surface shape, it is also conceivable that the inner peripheral surface shape of the crimping portion 22 is closer to a circular shape than the outer peripheral surface shape.

[0036] The crimping portion 22 does not necessarily need to be formed as a closed barrel. For example, in the state before crimping, the crimping portion may be a type of crimping portion called a so-called open barrel or F-crimp, in which a pair of crimping pieces rise from both sides of the bottom. In this case, with the single-core wire disposed on the bottom and between the pair of crimping pieces, the pair of crimping pieces are compression-deformed toward the single-core wire, and it is preferable that the single-core wire is held between the bottom and the pair of crimping pieces.

[0037] A portion of the outer peripheral surface of the crimping portion 22, which extends from the central portion in the axial direction of the crimping portion 22 toward the tip side of the single-core wire 30, may have a shape in which the same shape is continuous. The outer peripheral shape of the crimped crimping portion 22 may be formed, for example, by transferring the shape of the die surface for crimping the crimping portion 22. Also, it is conceivable that the crimping portion 22 is formed by crimping a cylindrical portion having the same thickness in the circumferential direction. Therefore, it is assumed that a portion of the inner peripheral surface of the crimping portion 22, which extends from the central portion in the axial direction of the crimping portion 22 toward the tip side of the single-core wire 30, also has a shape in which the same shape is continuous.

[0038] In the present embodiment, the outer peripheral surface of the crimping portion 22 has a shape in which the same shape is continuous throughout the entire axial direction of the crimping portion 22. Therefore, it is assumed that the inner peripheral surface of the crimping portion 22 has a shape in which the same shape is continuous throughout the entire axial direction of the crimping portion 22.

[0039] For example, a portion that tapers and spreads, called a bell mouth, may be formed at the axial end of the crimping portion of a crimping terminal crimped to a stranded wire. Such a bell mouth is not formed in the present crimping portion 22.

[0040] The mating-side connection portion 24 is a portion that is connected to a component that is the connection destination of the single-core wire 30. In the present embodiment, the mating-side connection portion 24 is a plate-like portion having a hole. For example, it is conceivable that the mating-side connection portion 24 is screwed to the connection destination component with a screw. The connection destination component is assumed to be a terminal of an electrical device, a metal housing, a metal body of a vehicle, or the like. The mating-side connection portion 24 may be a pin-shaped or rod-shaped portion that is inserted into a cylindrical portion of the mating-side terminal, or a cylindrical portion into which the mating-side terminal is inserted.

[0041] The single-core wire 30 is formed of aluminum or an aluminum alloy. The single-core wire is a portion in which aluminum or an aluminum alloy forms a single linear portion without being divided. Therefore, the single-core wire is not a stranded wire or a twisted wire in which a plurality of core wires are assembled. Note that the single-core wire does not have to be made of aluminum or an aluminum alloy, and may be made of copper or a copper alloy, for example.

[0042] Since the conductor for wiring of the terminal-attached wiring member 10 is formed of aluminum or an aluminum alloy, the weight of the terminal-attached wiring member 10 can be reduced. Further, since the conductor for wiring of the terminal-attached wiring member 10 is a single-core wire, the terminal-attached wiring member 10 can be made thinner.

[0043] The shape of the cross section of the single-core wire 30 is not particularly limited, and may be circular, elliptical, or polygonal. In the present embodiment, the shape of the cross section of the single-core wire 30 is circular. Note that the cross section of the single-core wire 30 is a cross section in a direction orthogonal to the longitudinal direction of the single-core wire 30.

[0044] At least the end portions of the single-core wire 30 are exposed. The crimping portion 22 is crimped to the exposed end portions of the single-core wire 30. The end face of the single-core wire 30 faces the mating connection portion 24 side. Therefore, when observing the terminal-attached wiring member 10 from the tip side of the terminal-attached wiring member 10 (that is, the mating connection portion 24 side), the end face of the crimping portion 22 surrounds the periphery of the end face of the single-core wire 30 except for the location where the mating connection portion 24 exists.

[0045] In the axial direction of the single-core wire 30, the end face of the single-core wire 30 may be flush with the end face of the crimping portion 22 or may be located at a position different from the end face of the crimping portion 22. As will be described later, in the axial direction of the single-core wire 30, it is preferable that the end face of the single-core wire 30 is flush with the end face of the crimping portion 22 or is recessed with respect to the end face of the crimping portion 22. The case where the end face of the single-core wire 30 is flush with the end face of the crimping portion 22 includes the case where the end face of the single-core wire 30 is manufactured to be flush with the end face of the crimping portion 22 but is not flush due to factors such as manufacturing errors, for example, the case where the end face of the single-core wire 30 protrudes or is recessed with respect to the end face of the crimping portion 22 within a range of 0.5 mm.

[0046] Note that at least a part of the single-core wire, for example, the intermediate portion in the longitudinal direction of the single-core wire 30 may be covered with resin or the like.

[0047] The welding bead 40 is a welded portion formed at the welding location between the crimping portion 22 and the single-core wire 30. The welding bead 40 is formed along the boundary 42 between the crimping portion 22 and the single-core wire 30.

[0048] More specifically, on the tip side of the single-core wire 30, there is an annular tip-side boundary 42 between the crimping portion 22 and the single-core wire 30. The tip-side boundary 42 is an annular contact location between the inner circumferential surface of the crimping portion 22 and the outer circumferential surface of the single-core wire 30. Before welding, the tip-side boundary 42 can be observed from the outside. After welding, the tip-side boundary 42 is the portion where the crimping portion 22 and the single-core wire 30 are in contact inside the welding bead 40.

[0049] The welding bead 40 extends along at least a part of the tip-side boundary 42. In this embodiment, the welding bead 40 is formed over the entire circumferential direction of the annular tip-side boundary 42. The welding bead may be formed over a part of the circumferential direction of the annular tip-side boundary. The welding bead may be formed intermittently along the circumferential direction of the annular tip-side boundary. In this embodiment, the welding bead 40 is formed annularly over the entire tip-side boundary 42.

[0050] Since the welding bead 40 is the portion where the crimping portion 22 and the single-core wire 30 are welded, it is the portion where the copper or copper alloy forming the crimping portion 22 and the aluminum or aluminum alloy forming the single-core wire 30 are melted together. In the welding bead 40, the melting state of the copper or copper alloy and the aluminum or aluminum alloy may not be uniform. Also, the boundary between the welding bead 40 and the crimping portion 22, or the boundary between the welding bead 40 and the single-core wire 30, may or may not be clearly distinguishable. Sometimes, due to the gradual transition of components, it may not be clearly distinguishable.

[0051] The welding bead 40 is the portion where the base material forming the crimping portion 22 and the base material forming the single-core wire 30 are melted together and solidified while remaining continuously integrated with the crimping portion 22 and the single-core wire 30. The welding bead 40 has a rough surface with respect to the surface of the crimping portion 22 and the surface of the single-core wire 30. For example, it is conceivable that the surface of the welding bead 40 protrudes with respect to the surface of the crimping portion 22 and the surface of the single-core wire 30.

[0052] When the crimping portion 22 and the single-core wire 30 are welded at the boundary 42, the oxide film formed on the surface of the single-core wire 30 is broken. Therefore, the crimping portion 22 and the single-core wire 30 are connected with low resistance by the welding bead 40.

[0053] The welding bead 40 may be, for example, a portion where the crimping portion 22 and the single-core wire 30 are laser welded along their boundary 42. Laser welding means irradiating laser light onto two welding target locations to melt and join the two welding target locations. The welding bead 40 may be a portion welded by a welding method other than laser welding.

[0054] For example, by irradiating laser light along the annular tip-side boundary 42, the crimping portion 22 and the single-core wire 30 melt together at the tip-side boundary 42 to form the welding bead 40. In this case, it is conceivable that the crimping portion 22 and the single-core wire 30 are not welded at the back side of the crimping portion 22, for example, at the intermediate portion in the longitudinal direction of the crimping portion 22.

[0055] The laser light may be irradiated simply along an annular path along the annular tip-side boundary 42. The laser light may be irradiated along a path that zigzags while following the tip-side boundary 42. Thereby, the width of the welding bead 40 can be increased.

[0056] An example of the manufacturing method of the terminal-attached wiring member 10 will be described.

[0057] As shown in FIG. 5, the terminal 20B before crimping and the single-core wire are prepared. The inner space of the crimping portion 22B of the terminal 20B is wider than the inner space of the crimping portion 22 after crimping and is, for example, a cylindrical space. Therefore, the end portion of the single-core wire 30 can be easily inserted into the crimping portion 22B. Thereafter, the crimping portion 22B is compression-deformed by a pair of crimping dies 50 and 52 to crimp the crimping portion 22 to the single-core wire 30.

[0058] For example, as shown by the two-dot chain line in FIG. 6, the crimping portion 22B before crimping has a cylindrical shape. As shown by the two-dot chain line in FIG. 6, the single-core wire 30 is thin enough to be easily inserted into the crimping portion 22B. Therefore, the single-core wire 30 can be easily inserted into the crimping portion 22B.

[0059] The die surfaces of the pair of crimping dies 50 and 52 are formed into a shape corresponding to the outer peripheral shape of the crimping portion 22 after crimping. For example, the die surfaces of each of the pair of crimping dies 50 and 52 are formed into a shape obtained by dividing the outer peripheral shape of a polygonal prism into two parts. By moving one or both of the pair of crimping dies 50 and 52 in the approaching direction, the crimping portion 22 is crimped to the single-core wire 30 between the pair of crimping dies 50 and 52. The shape of the die surfaces of the pair of crimping dies 50 and 52 is transferred to the crimped crimping portion 22. For example, the outer peripheral surface shape of the crimping portion 22 is formed into a polygonal prism outer peripheral surface shape. The internal space of the crimping portion 22 becomes smaller than the internal space of the crimping portion 22B, and the end portion of the single-core wire 30 is crimped and held in the crimping portion 22.

[0060] It is conceivable that an oxide film is formed on the surface of the single-core wire 30 formed of aluminum or an aluminum alloy. By crimping the crimping portion 22, while deforming the surface of the single-core wire 30, the crimping portion 22 is pressed against the surface of the single-core wire 30, but there is a possibility that the oxide film remains on the surface of the single-core wire 30.

[0061] As shown in FIG. 7, laser light is irradiated along the boundary 42 between the single-core wire 30 and the crimping portion 22. Preferably, the laser light is irradiated along the entire boundary 42 on the tip side.

[0062] For the boundary 42 on the tip side, the laser light irradiation device 60 is arranged on the tip side of the single-core wire 30, and the laser light 60L can be irradiated from the laser light irradiation device 60 toward the boundary 42 on the tip side. Therefore, laser welding for the boundary 42 on the tip side can be easily performed. In addition, in the portion where the mating connection portion 24 exists, the laser light 60L may be irradiated in an oblique posture toward the boundary between the crimping portion 22 and the mating connection portion 24.

[0063] In order to perform welding well, the end face of the single-core wire 30 may be flush with the end face of the crimping portion 22 or may protrude from the end face of the crimping portion 22. If the end face of the single-core wire 30 coincides with the end face of the crimping portion 22, it is easy to perform good welding by irradiating laser light 60L on both end faces at their boundary. Also, aluminum or an aluminum alloy melts more easily than copper or a copper alloy. Therefore, even if the end face of the single-core wire 30 protrudes from the end face of the crimping portion 22, by melting the protruding portion of the single-core wire 30, as a result, it is easy to perform good welding by irradiating laser light 60L on both end faces at their boundary.

[0064] By welding the crimping portion 22 and the single-core wire 30, the oxide film on the surface of the single-core wire 30 is broken, and the crimping portion 22 and the single-core wire 30 are connected with low resistance.

[0065] According to the terminal wiring member 10 configured as described above and the manufacturing method of the terminal wiring member 10, in addition to the structure in which the crimping portion 22 is crimped to the single-core wire 30, the crimping portion 22 and the single-core wire 30 are welded by the welding bead 40. And at the welding location of the crimping portion 22 and the single-core wire 30, the oxide film is broken. Therefore, the terminal 20 and the single-core wire 30 are stably connected with low resistance, and the connection between the single-core wire 30 and the terminal 20 can be performed better. Also, the tensile strength of the single-core wire 30 with respect to the terminal 20 is ensured by the crimping of the crimping portion 22 to the single-core wire 30.

[0066] Also, if the welding bead 40 is a portion laser-welded along the boundary 42, the influence of welding can be limited, and the connection between the single-core wire 30 and the terminal 20 can be performed better. That is, when the entire crimping portion 22 is heated to a high temperature, the stress of the crimping portion 22 may be relaxed. In the case of laser welding, the laser light may be irradiated on a limited area along the boundary 42, particularly the boundary 42 on the tip side. Also, the heating time for welding can be shortened. For this reason, it is difficult for the thermal influence to reach the middle portion in the longitudinal direction of the crimping portion 22 and the base end portion of the crimping portion 22, and it is difficult for stress relaxation of the crimping portion 22 to occur. Thereby, it is easy to maintain the force with which the crimping portion 22 holds the single-core wire 30.

[0067] In addition, since pressure for welding does not need to be applied during welding, the shape of the crimping portion 22 is easily maintained in the initial state during crimping. Thereby, it is easy to secure the desired crimping holding force.

[0068] Also, since the crimping portion does not have to be sandwiched by a member for applying welding energy, the welding operation becomes easy.

[0069] Also, the welding bead 40 is along at least a part of the tip-side boundary 42. For this reason, the welding bead 40 can be easily formed by the welding operation from the tip side of the single-core wire 30.

[0070] Note that the welding may be performed on the base end side of the crimping portion 22, that is, the side where the single-core wire 30 extends.

[0071] Also, since the portion of the outer peripheral surface of the crimping portion 22 from the axial center portion of the crimping portion 22 toward the tip side of the single-core wire has a shape in which the same shape is continuous, it is easy to bring the crimping portion 22 and the single-core wire 30 into close contact at the tip side of the crimping portion 22. Thereby, at the tip side of the single-core wire 30, the crimping portion 22 and the single-core wire 30 can be satisfactorily welded.

[0072] Also, by using the single-core wire 30 made of aluminum or an aluminum alloy, it is possible to reduce the weight and diameter of the terminal wiring member 10. However, when the single-core wire 30 made of aluminum or an aluminum alloy is used, the single-core wire 30 is difficult to deform during crimping, and there is a possibility that a strong oxide film is formed on the surface of the single-core wire 30. For this reason, there is a possibility that the terminal 20 and the single-core wire 30 cannot be stably connected with low resistance only by crimping. Therefore, by welding the crimping portion 22 and the single-core wire 30, the oxide film on the surface of the single-core wire 30 is broken, and the crimping portion 22 and the single-core wire 30 are stably connected with low resistance.

[0073] Also, if the crimping portion 22 is a closed barrel crimped so that its outer peripheral shape is the shape of the outer peripheral surface of a polygonal prism, it is easy to compress the single-core wire 30 within the closed barrel. For this reason, it is easy to firmly crimp and fix the crimping portion 22 to the single-core wire 30.

[0074] In addition, each configuration described in the above embodiments and each modification can be appropriately combined as long as they do not contradict each other.

Explanation of Reference Numerals

[0075] 10 Wiring member with terminals 20, 20B Terminals 22, 22B Crimping portions 24 Counterpart connection portion 30 Single-core wire 40 Weld bead 42 Tip-side boundary 50, 52 Crimping dies 60 Laser light irradiation device

Claims

1. A terminal including a crimping portion, A single-core wire to which the crimping portion is crimped, A welding bead along the boundary between the crimping portion and the single-core wire, A terminal wiring member comprising the above.

2. The terminal wiring member according to Claim 1, wherein the welding bead is a portion where the crimping portion and the single-core wire are laser-welded along their boundary.

3. The terminal wiring member according to Claim 1 or Claim 2, wherein an annular tip-side boundary between the crimping portion and the single-core wire exists on the tip side of the single-core wire, and the welding bead is along at least a part of the tip-side boundary.

4. The terminal wiring member according to Claim 1 or Claim 2, wherein a portion of the outer peripheral surface of the crimping portion from the axial center portion of the crimping portion toward the tip side of the single-core wire has a continuous shape with the same shape.

5. The terminal wiring member according to Claim 1 or Claim 2, wherein the terminal is made of copper or a copper alloy, and the single-core wire is made of aluminum or an aluminum alloy.

6. The terminal wiring member according to Claim 1 or Claim 2, wherein the crimping portion is a closed barrel crimped so that the outer peripheral shape has the shape of a prism outer peripheral surface.

7. Prepare a terminal including a crimping portion and a single-core wire, Crimp the crimping portion to the single-core wire, Laser-weld the crimping portion and the single-core wire. A method for manufacturing a terminal wiring member.

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