JP2008245468A - Method of manufacturing part for stator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a part for a stator, by which punching burr protruding on front and rear sides is not generated on an end of an elongated conductor plate, and interlayer short circuit hardly occurs even in an insulating distance in lamination is long depending on the circumstances. <P>SOLUTION: The method of manufacturing a part for a stator which is used as a portion of a coil material wound around a stator magnetic pole and includes a conductive coil material 17 having an elongated conductor plate and an insulating sheet pasted on its front surface, has a first step of preparing a wide conductor plate material 12 having an insulating sheet 10 pasted on its one surface and having a width enough to punch the conductive coil material 17; a second step of executing half-blanking processing of the conductive coil material 17 from the front surface for the wide conductor plate member 12; and a third step of pushing the half-blanked conductive coil material 17 back into the wide conductor plate member 12 from the rear side, wherein the occurrence of burr on the front and rear sides is prevented on the end of the elongate conductor plate forming the conductive coil material 17. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a method of manufacturing a component for a stator that is used as a part of a coil material wound around a stator magnetic pole of a rotating electrical machine and includes a long conductor plate and an insulating sheet attached to the front side thereof. .

In a rotating electric machine composed of a stator and a rotor, for example, a stator of a synchronous motor, a conductor coil is wound around a slot formed between magnetic pole portions provided in a stator core. Since the inside of the portion in the radial direction is widened, there is a problem that winding is extremely difficult. Therefore, as shown in Patent Document 1, a long conductor plate pressed into a part of each winding is used, and insulation between layers (turns) is performed by an insulating sheet disposed between the long conductor plates. .
An outline of this state is shown in FIG. 7, and a coil (conductor) 83 is provided in a slot 82 formed between the magnetic pole portions 81 of the stator core 80. The coil 83 is formed by laminating a plurality of long conductor plates 84 that are U-shaped or linear with an insulating sheet 85 interposed therebetween. The long conductor plate 84 arranged on the outer side in the radial direction is wide, but the side surface of each long conductor plate 84 constituting the coil 83 on the side arranged close to the magnetic pole portion 81. Is a vertical surface, and the opposite side surface is stepped, so that the width of the long conductor plate 84 is gradually narrowed toward the inside in the radial direction.

JP-A-2005-160143

However, since each long conductor plate 84 is produced by press working, a punching burr 88 is generated on the cut end face 87 as it is. As shown in FIG. 8 (A), when the punching burr 88 is formed on the side where the insulating sheet 85 is adhered, it is in contact with the upper long conductor plate 84 beyond the end of the insulating sheet 85 during lamination. There is a problem of causing a short circuit. Alternatively, as shown in FIG. 8B, when the punching burr 88 is formed on the side opposite to the side on which the insulating sheet 85 is adhered, the lower insulating sheet 85 is broken at the time of lamination, and the lower long There is a problem of causing an interlayer short circuit in contact with the conductor plate 84. Thus, for example, a technique such as shaving has been proposed so that the punching burr 88 does not occur on the end surface of the long conductor plate 84, but the punching burr 88 does not occur on the end surface close to the magnetic pole part 81. However, since the end of the long conductor plate 84 is exposed only by the thickness of the insulating sheet 85, the insulating distance between the layers is small, and an interlayer short-circuit occurs due to adhesion of foreign matter or wrinkles. There was a problem that there might be.

The present invention has been made in view of such circumstances, and there is no punching burr protruding on the front side and the back side at the end of the long conductor plate. An object of the present invention is to provide a method for manufacturing a component for a stator that is less likely to generate a crack.

The method for manufacturing a stator component according to the first invention in accordance with the above object is used as a part of a coil material wound around a stator magnetic pole, and is insulated on a long conductor plate and its front side. A method for manufacturing a stator component comprising a conductive coil material having a sheet,
A first step in which the insulating sheet is attached to one side and a wide conductor plate material having a width capable of punching the conductive coil material is prepared;
A second step of half-cutting the conductive coil material from the front side to the wide conductor plate material;
And a third step of pushing back the conductive coil material that has been half-punched from the back side into the wide conductor plate material.
In the method for manufacturing a stator component according to the first aspect of the present invention, even if a burr generated at the end of the long conductor plate constituting the conductive coil material is generated, the burr is contained within the plate thickness, Protruding from the back is prevented.

In the method for manufacturing a stator component according to the first invention, the plurality of conductive coil members may be formed through the second and third steps simultaneously from the wide conductor plate member with a gap.

Moreover, the manufacturing method of the components for stators concerning 2nd invention is used as a part of coil material wound by the stator magnetic pole, and the insulating sheet currently affixed on the elongate conductor plate and its front side, A method for manufacturing a stator component comprising a conductive coil material having
A first step in which the insulating sheet is attached to one side and a wide conductor plate material having a width capable of punching the conductive coil material is prepared;
A second step of half-cutting the conductive coil material from the front side to the wide conductor plate material;
A third step of pressing the conductive coil material subjected to the half-punching process from the back side and punching out from the wide conductor plate material;
And a fourth step of returning the punched conductive coil material to the wide conductor plate material.
Even in the method for manufacturing a stator component according to the second invention, even if a burr generated at the end of the long conductor plate constituting the conductive coil material is generated, the burr is contained within the plate thickness, Or it is prevented from protruding from the back surface.

In the method for manufacturing a stator component according to the first and second inventions, the insulating sheet may be formed on the front side or the back side of the wide conductor plate material, but it is adhered as firmly as possible. It is preferably worn and cut with the long conductor plate. The insulating sheet is preferably formed of a heat-resistant synthetic resin sheet such as a polyimide resin sheet, but the present invention is applicable to inorganic materials such as mica (the same applies to the third invention below). ).

And the manufacturing method of the components for stators concerning 3rd invention is used as a part of coil material wound around a stator magnetic pole, and the insulating sheet currently affixed on the elongate conductor plate and its front side, A method for manufacturing a stator component comprising a conductive coil material having
A first step in which the insulating sheet is attached to one side and a wide conductor plate material having the entire length of the conductive coil material is prepared;
A second step of performing stepping from the surface with the insulating sheet on the back side at one end of the conductive coil material formed on one side of the wide conductor plate material;
A third step of performing half blanking of the other side end of the conductive coil material that has been stepped on the one side end;
A fourth step of pressing the conductive coil material subjected to the half-punching process from the back side and punching out from the wide conductor plate material;
A fifth step of returning the punched conductive coil material to the wide conductor plate material,
Generation | occurrence | production of the burr | flash from the surface and the back surface is prevented in the edge part of the said elongate conductor board which comprises the said conductive coil material.

In the method for manufacturing a component for a stator according to the first and second inventions, when the long conductor plate has a thin portion at a longitudinal end portion thereof, the punching thickness of the half-punching process in the second step is The thickness of the long conductor plate excluding the thin portion is preferably in the range of 0.4 to 0.8.
In the method for manufacturing a stator component according to a third aspect of the present invention, when the long conductor plate has a thin portion at the longitudinal end, the punching thickness of the half-punching process in the third step is the thin portion. It is preferable that the thickness of the long conductor plate is in the range of 0.4 to 0.8.
And it is good to narrow the space | interval of the cutter which performs half-punching from a standard so that the burr | flash which generate | occur | produces in these cases may not protrude from a thin part. When the interval between the blades is narrowed, the burrs generated are shortened.

In the method for manufacturing a stator part according to claims 1 to 6, since half-blanking and pushing back or punching are performed and burrs generated by pressing are contained within the plate thickness, Even when the stator parts (that is, the conductive coil material) are laminated, the insulating sheets of the stator parts adjacent to each other are not broken by the burr protruding beyond the plate thickness.
In addition, half-punching and pushing back or punching can be performed at a high speed, so that a large amount of stator parts can be manufactured at low cost.
Furthermore, in the case of half-cutting, since the blade use area is up to the middle of the plate thickness, it is possible to suppress the wear of the blade, and the tool life can be extended, and the device operating time can be extended. .
In particular, in the case of the method for manufacturing a stator part according to claims 5 and 6, the occurrence of burrs in the portion is eliminated by further performing stepping on the non-insulating sheet side of the long conductor plate. In addition, the insulation distance of the laminated stator components can be increased to maintain good insulation.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIGS. 1A to 1D are explanatory views of a method for manufacturing a stator component according to the first embodiment of the present invention, and FIGS. 2A to 2D are second views of the present invention. FIG. 3A is a side view of the laminated conductive coil material (stator component), and FIG. 3B is a side view of the stator coil manufacturing method according to the embodiment. View A-A, (C) is an explanatory view of the method for manufacturing the stator component according to the modification of the second embodiment of the present invention. 4A to 4D are explanatory views of a method for manufacturing a stator component according to the third embodiment of the present invention, and FIGS. 5A to 5H are diagrams illustrating the fourth embodiment of the present invention. FIG. 6 is an explanatory view of assembly of a stator coil using the stator component manufactured by the manufacturing method.

1A to 1D show a method for manufacturing a stator component according to the first embodiment of the present invention. A wide conductor plate 12 made of a copper plate 11 (having a thickness of, for example, 0.5 to 3 mm) with a thin insulating sheet 10 attached on one side (for example, a thickness of 0.05 to 1.5 mm) is prepared, and FIG. ), The wide conductor plate 12 is placed in the mold apparatus with the insulating sheet 10 facing down. The mold apparatus is a known apparatus, and includes an upper punch 13, a lower punch (knockout punch) 14 corresponding to the upper punch 13, and a die 15, and a stripper 16 that holds the wide conductor plate material 12 mounted on the die 15. I have.

Then, as shown in FIG. 1B, the upper punch 13 is pushed down, and the conductive coil material (finally the stator part) 17 is half-cut from the front side. This half punching process is performed by pressing down the upper punch 13 about 0.4 to 0.8 times (preferably 0.5 to 0.6 times) the thickness of the copper plate 11. The lower punch 14 descends following the upper punch 13. As a result, the conductive coil material 17 is pushed downward while a part of the metal of the copper plate 11 is connected to the wide conductor plate material 12. Although the insulating sheet 10 is cut by a shearing force, even if the insulating sheet 10 is a soft material, the insulating sheet 10 is cut in principle by a shearing force between the die 15 and the half-cut copper plate 11. Depending on the clearance formed between the die 15 and the upper punch 13, the copper plate 11 may be torn off.

In this state, as shown in FIG. 1C, the wide conductor plate material 12 is conveyed to the next station. In this station, an upper flat plate 18 and a lower flat plate 19 made of a hard steel material are respectively provided above and below the conductive coil material 17 to be manufactured. The upper flat plate 18 is pushed down to the lower flat plate 19 side (the lower flat plate 19 may be pushed up), and the wide conductor plate 12 is sandwiched between the upper flat plate 18 and the lower flat plate 19. As a result, as shown in FIG. 1D, the conductive coil material 17 is pushed back into the wide conductor plate material 12 from the back side. At this time, the end portion of the conductive coil material 17 is cut from the wide conductor plate material 12, and the burrs that are or have been generated in the half-punching process change the direction by 180 degrees, Fits within the plate thickness.

By the above processing method, there is no burr protruding from the front surface or the back surface beyond the plate thickness at the end of the conductive coil material 17 formed of a long conductive plate having an insulating sheet adhered to the surface. In FIG. 1, the right end portion of the conductive coil material 17 goes through the same process, and there is no burr protruding from the front surface and the back surface. Through the above steps, a stator component made of the conductive coil material 17 and used as a part of the coil material wound around the stator magnetic pole is manufactured.
In this embodiment, only the cutting process on both side ends on the side orthogonal to the longitudinal direction of the conductive coil material 17 (that is, the width direction) has been described. It is also possible to apply the present invention. In this case, the conductive coil material 17 is removed from the wide conductor plate material having a width longer than the length of the conductive coil material 17.

Next, a method for manufacturing the stator component according to the second embodiment of the present invention shown in FIG. 2 will be described. Components that are substantially the same as those in the embodiment shown in FIG. The detailed description is omitted (the same applies to the following embodiments).
As shown in FIG. 2A, a wide conductor plate 12 having a width wider than the entire length of the conductive coil member 17 is prepared. The mold apparatus includes first and second upper punches 21 and 22, first and second lower punches 23 and 24 corresponding to the first and second upper punches 21 and 22, a die 25 and a stripper 26, and FIG. As shown in FIG. 2 (C), a plurality of (2 in this embodiment) conductive coil members 17 are half-punched simultaneously to the wide conductor plate material 12 to form a gap. The plurality of conductive coil members 17 are pushed back from the back side into the wide conductor plate member 12 using the upper flat plate 18 and the lower flat plate 19.

As a result, as shown in FIG. 2 (D), a plurality of conductive coil members 17 in which burrs generated during cutting do not protrude from the front and back sides of the conductive coil member 17 (specifically, the copper plate 11) are manufactured simultaneously. Yes. In this embodiment, not only the both ends in the width direction of the conductive coil material 17 but also burrs generated at both ends in the longitudinal direction are within the plate thickness.

In the above-described embodiment, the case where the long conductor plate (that is, the copper plate 11) of the conductive coil material 17 has a uniform thickness with respect to both sides in the width direction (that is, the short direction) and the longitudinal direction has been described. For example, as shown in FIGS. 3 (A) and 3 (B), on both sides in the longitudinal direction, a thin wall in the range of 0.4 to 0.6 times the thickness of the conductor main body portion (referring to a portion excluding both sides) 28 The present invention can also be applied when manufacturing the conductive coil material 31 (31a, 31b) having the portions 29, 30. In this case, as shown in FIG. 3C, a wide conductor plate material 12 wider than the length in the longitudinal direction of the conductive coil material 31 (same for 31a and 31b, hereinafter omitted) is prepared. It has the same width as that of the conductive coil material 31 and has a concave portion 33 into which the upper half of the conductor main body 28 (excluding the thin-walled portions 29 and 30 is removed) is formed at the center.

The lower punch 34 may have a flat plate shape and has the same shape as the upper punch 32 in plan view. Since the half punching height (punching thickness) is about 0.4 to 0.8 times the thickness of the conductor main body 28, burrs are generated around the thin portions 29 and 30, When the conductive coil material 31 is pushed back by using the lower flat plate 18 and the lower flat plate 19 in the next step, the burr protruding from the plate end is pushed into the thickness of the plate, so that it protrudes upward or downward from the plate end. The burr to do is gone. If some burrs remain, they may be removed by chemical polishing.

Other processes are the same as those in the method for manufacturing the stator component according to the second embodiment shown in FIG. 2, and the half-cut conductive coil material 31 is sandwiched between the upper flat plate 18 and the lower flat plate 19. However, the upper flat plate 19 is provided with a recess into which the upper half of the conductor main body 28 (strictly, the portion protruding upward from the thin-walled portions 29 and 30) can be freely fitted. Thereby, the conductive coil material 31 having the insulating sheet 10 attached to the back side is formed. In FIG. 3C, 35 indicates a die and 36 indicates a stripper.

In the collective coil material obtained by laminating the three conductive coil materials 31, 31 a, 31 b manufactured by this method shown in FIGS. 3A and 3B, the insulating sheet 10 extends to the back surfaces of the thin portions 29, 30. It extends so as to improve the insulation between the layers. In addition, the end part of the connection conductor which is not illustrated fits in the space part 35a formed by the thin parts 29 and 30 adjacent to the upper and lower sides, and all the conductive coil materials are connected in series.

Next, a method for manufacturing the stator component according to the third embodiment of the present invention shown in FIG. 4 will be described. 4A and 4B are the same as the method for manufacturing the stator component according to the first embodiment of the present invention shown in FIG. In FIG. 4C, the conductive coil material 17 is pressed by the lower punch 14 while the conductive coil material 17 is sandwiched between the lower punch 14 and the upper punch 13, and the conductive coil material 17 is pressed from the wide conductor plate material 12. When extracted (upper), the conductive coil material 17 is completely separated from the wide conductor plate material 12. Then, the burr formed in the step of FIG. 4C formed on the conductive coil material 17 also changes its direction and falls within the plate thickness of the conductive coil material 17 (strictly, the copper plate 11).

As shown in FIG. 4D, when the lower punch 14 is lowered, the separated conductive coil material 17 falls onto the lower punch 14 by its own weight and is returned to the wide conductor plate material 12. In this embodiment, the formation of only one end portion (left side in the drawing) of the conductive coil material 17 has been described, but the other end portion is also formed by a similar processing method.
Moreover, this method can also be performed about the perimeter of the conductive coil material 17, and in this case, it will be extracted from the wide conductor plate material 12.

Then, the manufacturing method of the components for stators concerning the 4th Embodiment of this invention is demonstrated, referring FIG. 5 (A)-(H).
As shown in FIG. 6, a plurality of stator parts made of the conductive coil material 40 having slightly different widths manufactured by the method according to this embodiment are used as parts of the collective coil materials 41 and. Each of the conductive coil materials 40 having different widths has a stepped portion 43 formed on one side, and the other side is a vertical surface with respect to the front surface and the back surface. And the insulating sheet 10 is affixed on the side in which the step part 43 of the conductive coil material 40 is not formed.

As shown in FIG. 5A, the wide conductor plate 12 having the entire length of the conductive coil material 40 is placed on the die 46 having the punch holes 45 with the insulating sheet 10 facing down. A stopper 47 having the same thickness as that of the wide conductor plate 12 is provided on the die 46 to position one end of the wide conductor plate 12. A first upper punch 48 is fitted into the punch hole 45, and a second upper punch 49 is placed on the end side of the wide conductor plate 12. The second upper punch 49 performs stepping processing on the end portion of the wide conductor plate material 12, and the protrusion 50 is formed in accordance with the shape of the step portion 43 formed at the end portion of the conductive coil material 40. Reference numeral 51 denotes a stripper that presses and holds the wide conductor plate 12 on the die 46, and 52 denotes a first lower punch that fits into the punch hole 45.

As shown in FIG. 5 (B), the second upper punch 49 is lowered to crush the end portion of the wide conductor plate member 12, that is, the end portion of the conductive coil member 40, so that 0.4 to 0 of the copper plate 11 is obtained. A step 43 having a thickness of 6 times is formed. In this state, as shown in FIG. 5C, the second upper punch 49 is raised. Along with this, the stripper 51 also rises, and as shown in FIG. 5D, the wide conductor plate 12 is moved backward by a predetermined distance. In this case, the retreat distance is determined in advance by pilot holes (not shown) formed in the wide conductor plate 12 at a predetermined pitch.

Thereafter, as shown in FIGS. 5E and 5F, the other end of the conductive coil material 40 is half-punched. Then, as shown in FIG. 5 (G), the first lower punch 52 presses the half-cut conductive coil material 40 and pushes it upward from the wide conductor plate material 12. Next, as shown in FIG. 5 (H), by lowering the first lower punch 52, the conductive coil material 40 falls by its own weight, is returned to the wide conductor plate material 12, and is placed on the first lower punch 52. It will be listed.

In such a procedure, the conductive coil members 40 having different widths are made and stacked as shown in FIG. Regarding the stacking of the conductive coil members 40 having different widths, the end portions of the conductive coil members 40 having the step portions 43 formed on the vertical plane are aligned, and the conductive coil member 40 having the shorter width among the upper and lower adjacent conductive coil members 40. If the step part 43 is arranged so as to face the conductive coil material 40 having a longer width, the insulation distance between the conductive coil materials 40 adjacent to each other in the vertical direction becomes long.

Although the said embodiment demonstrated the manufacturing method of the conductive coil material 40 (namely, component for stators) with the same thickness over the whole area | region, the copper plate 11 of the longitudinal direction both sides of a long conductive coil material was demonstrated. When the thickness is 0.4 to 0.6 times the thickness of the intermediate portion, a gap is formed between the thin portions on both sides of the upper and lower adjacent conductive coil materials, and a connecting member is inserted into this gap to form a conductor circuit. Can be formed (see FIG. 3A).
When such a conductive coil material is manufactured, half-punching and pushing or punching is performed on the basis of the thickness of the conductive coil material (the thickest portion, or in some cases, the thin portion).

Moreover, in the said embodiment, although the case where the edge part was formed over the perimeter of a conductive coil material was demonstrated, the method of this invention was applied partially, and other parts (for example, elongate) For the thin-walled portions formed on both sides of the conductive coil material, the present invention can also be applied to the case where end faces are formed by shaving, for example. In this case, the conductive coil material (stator part) can be manufactured more economically when the blade is less damaged than when all the end faces of the conductive coil material are shaved.
And this invention is applied also when manufacturing the components for stators combining the manufacturing method of the components for stators which concerns on the said 1st-4th embodiment.

(A)-(D) are explanatory drawings of the manufacturing method of the components for stators concerning the 1st Embodiment of this invention. (A)-(D) are explanatory drawings of the manufacturing method of the components for stators concerning the 2nd Embodiment of this invention. (A) is a side view of the conductive coil material (components for the stator) in a laminated state, (B) is an AA view of FIG. (A), and (C) is a second embodiment of the present invention. It is explanatory drawing of the manufacturing method of the components for stators which concern on the modification of a form. (A)-(D) are explanatory drawings of the manufacturing method of the components for stators concerning the 3rd Embodiment of this invention. (A)-(H) are explanatory drawings of the manufacturing method of the components for stators which concern on the 4th Embodiment of this invention. It is assembly explanatory drawing of the coil for stators using the stator components manufactured by the manufacturing method. It is explanatory drawing of the components for a stator (winding) which concerns on a prior art example. (A), (B) is explanatory drawing of the problem of the components for stators concerning a prior art example, respectively.

Explanation of symbols

10: Insulating sheet, 11: Copper plate, 12: Wide conductor plate material, 13: Upper punch, 14: Lower punch, 15: Die, 16: Stripper, 17: Conductive coil material, 18: Upper flat plate, 19: Lower flat plate, 21 22: Upper punch, 23, 24: Lower punch, 25: Die, 26: Stripper, 28: Conductor body part, 29, 30: Thin part, 31, 31a, 31b: Conductive coil material, 32: Upper punch, 33 : Recessed portion, 34: lower punch, 35: die, 35a: space portion, 36: stripper, 40: conductive coil material, 41, 42: collective coil material, 43: stepped portion, 45: punch hole, 46: die, 47 : Stopper, 48: First upper punch, 49: Second upper punch, 50: Protrusion, 51: Stripper, 52: First lower punch

Claims (6)

A method of manufacturing a component for a stator comprising a conductive coil material having a long conductor plate and an insulating sheet attached to the front side thereof, which is used as a part of a coil material wound around a stator magnetic pole. ,
A first step in which the insulating sheet is attached to one side and a wide conductor plate material having a width capable of punching the conductive coil material is prepared;
A second step of half-cutting the conductive coil material from the front side to the wide conductor plate material;
A third step of pushing back the conductive coil material subjected to the half-punching process from the back side into the wide conductor plate material;
A method of manufacturing a component for a stator, wherein generation of burrs from an end portion of the long conductor plate constituting the conductive coil material is prevented. 2. The method of manufacturing a component for a stator according to claim 1, wherein the plurality of conductive coil members are formed from the wide conductor plate member through the second and third steps simultaneously with a gap. Manufacturing method for stator parts. A method of manufacturing a component for a stator comprising a conductive coil material having a long conductor plate and an insulating sheet attached to the front side thereof, which is used as a part of a coil material wound around a stator magnetic pole. ,
A first step in which the insulating sheet is attached to one side and a wide conductor plate material having a width capable of punching the conductive coil material is prepared;
A second step of half-cutting the conductive coil material from the front side to the wide conductor plate material;
A third step of pressing the conductive coil material subjected to the half-punching process from the back side and punching out from the wide conductor plate material;
A fourth step of returning the punched conductive coil material to the wide conductor plate material,
A method of manufacturing a component for a stator, wherein generation of burrs from an end portion of the long conductor plate constituting the conductive coil material is prevented. The method for manufacturing a stator part according to any one of claims 1 to 3, wherein when the long conductor plate has a thin portion at a longitudinal end portion thereof, the punching of the half-cutting process in the second step is performed. Thickness is in the range of 0.4 to 0.8 of the thickness of the long conductor plate excluding the thin wall portion. A method of manufacturing a component for a stator comprising a conductive coil material having a long conductor plate and an insulating sheet attached to the front side thereof, which is used as a part of a coil material wound around a stator magnetic pole. ,
A first step in which the insulating sheet is attached to one side and a wide conductor plate material having the entire length of the conductive coil material is prepared;
A second step of performing stepping from the surface with the insulating sheet on the back side at one end of the conductive coil material formed on one side of the wide conductor plate; and
A third step of performing half blanking of the other side end of the conductive coil material that has been stepped on the one side end;
A fourth step of pressing the conductive coil material subjected to the half-punching process from the back side and punching out from the wide conductor plate material;
A fifth step of returning the punched conductive coil material to the wide conductor plate material,
A method of manufacturing a component for a stator, wherein generation of burrs from an end portion of the long conductor plate constituting the conductive coil material is prevented. 6. The method of manufacturing a component for a stator according to claim 5, wherein when the long conductor plate has a thin wall portion at a longitudinal end portion thereof, the punching thickness of the half punching process in the third step excludes the thin wall portion. A method for manufacturing a component for a stator, wherein the thickness of the elongated conductor plate is in a range of 0.4 to 0.8.

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