Flow path forming member, manufacturing method, and manufacturing apparatus

Abstract

The invention provides a flow path forming member, a manufacturing method and a manufacturing device, and aims to ensure necessary sealing performance and reduce the number of parts in the flow path forming member for forming a flow path through which a heat supply medium passes. Disclosed is a flow path forming member for forming a flow path through which a heat medium passes, the flow path forming member having a first wall surface portion and a second wall surface portion, the first wall surface portion and the second wall surface portion facing each other at a distance from each other at a position where the flow path is formed, and having a sealing portion for the flow path on the outside of the position where the flow path is formed, the seal portion is formed by a mechanically deformed portion of a first wall portion and a mechanically deformed portion of a second wall portion, and the mechanically deformed portion of the first wall portion and the mechanically deformed portion of the second wall portion are integrated with each other via a joining surface.

Description

TECHNICAL FIELD

[0001] The present application relates to a flow path forming member, a manufacturing method, and a manufacturing apparatus. BACKGROUND

[0002] A technique is known in which an end portion of a member that forms a flow path through which a heating medium passes is sealed by another member.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT DOCUMENTS

[0005] Patent Document 1: U.S. Patent Application Publication No. 2017 / 0162922

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION

[0007] However, in the related art, in order to ensure necessary sealing, another member is required, and reduction in the number of members cannot be achieved. SUMMARY

[0008] Therefore, in one aspect, an object of the present application is to achieve reduction in the number of members while ensuring necessary sealing in a flow path forming member that forms a flow path through which a heating medium passes.

[0009] MEANS OF SOLVING THE PROBLEMS

[0010] In one aspect, a flow path forming member that forms a flow path through which a heating medium passes is provided,

[0011] has a first wall surface portion and a second wall surface portion,

[0012] the first wall surface portion and the second wall surface portion oppose each other at a distance at a position at which the flow path is formed, and have a sealing portion of the flow path outside the position at which the flow path is formed,

[0013] the sealing portion is formed by a mechanically deformed portion of the first wall surface portion and a mechanically deformed portion of the second wall surface portion, and the mechanically deformed portion of the first wall surface portion and the mechanically deformed portion of the second wall surface portion are integrated with each other via an interface.

[0014] EFFECTS OF THE INVENTION

[0015] In one aspect, according to the present application, in a flow path forming member that forms a flow path through which a heating medium passes, reduction in the number of members can be achieved while ensuring necessary sealing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a drawing that shows an example of a vehicle-mounted system 1 to which the flow path forming member of the present embodiment can be applied.

[0017] Figure 2 is a schematic view showing an example of a relationship between the flow path forming member of the present embodiment and a battery.

[0018] Figure 3 is a schematic cross-sectional view along the line A-A of Figure 2 .

[0019] Figure 4 is a perspective view schematically showing a single product state of the flow path forming member.

[0020] Figure 5 is an explanatory view of a sealing structure (sealing portion) of the flow path forming member, and is a cross-sectional view along the line B-B of Figure 4 .

[0021] Figure 6 is a flowchart schematically showing a flow of a manufacturing method of the flow path forming member 70.

[0022] Figure 7 is an explanatory view of a workpiece, and is a perspective view schematically showing the workpiece W.

[0023] Figure 8 is a cross-sectional view along the line C-C of Figure 7 .

[0024] Figure 9 is an explanatory view of a mold, and is a perspective view schematically showing the mold.

[0025] Figure 10 is a cross-sectional view showing a main portion of the mold before the workpiece is set.

[0026] Figure 11 is a cross-sectional view showing a main portion of the mold in a state where the workpiece is set.

[0027] Figure 12 is a cross-sectional view showing a main portion of the mold when the sealing portion is formed, and is a cross-sectional view showing a relationship between the workpiece and the mold.

[0028] Symbol Explanation

[0029] 70 flow path forming member, 82 wall surface portion (first wall surface portion), 84 wall surface portion (second wall surface portion), 78 sealing portion, 90 joint surface, W workpiece, 60 mold, 61 swage, 62 punch. DETAILED DESCRIPTION

[0030] Hereinafter, each embodiment will be described in detail with reference to the drawings. Note that the dimensional ratios of the drawings are merely examples and are not limited thereto, and the shapes and the like in the drawings are sometimes exaggerated partially for convenience of explanation. In addition, in the drawings, a reference sign is sometimes attached to only a part of portions of the same attribute that exist in plural for convenience of observation.

[0031] Figure 1 is a view that shows an example of a vehicle-mounted system 1 to which a flow path forming member 70 (to be described later) of the present embodiment can be applied.

[0032] The vehicle-mounted system 1 is mounted on a vehicle. In the present embodiment, the vehicle to which the vehicle-mounted system 1 is mounted is an electric vehicle or a hybrid vehicle that is provided with a battery 5, but can be a vehicle that uses only an engine as a power source.

[0033] The vehicle-mounted system 1 includes a refrigerant path 11 that circulates through a condenser 2, an evaporator 3, and a chiller 4 for an air conditioning device (not shown), a refrigerant path 12 that circulates through the chiller 4 and the battery 5, and a refrigerant path 13 that circulates through a radiator 6, a power supply system 7, and a motor 8.

[0034] In addition, the motor 8 is a motor for running of the vehicle, and the power supply system 7 can include an inverter and / or a converter, and the like. The battery 5 can be a high-voltage battery that serves as a power source for the motor 8. In addition, the radiator 6 and the condenser 2 are disposed at a front portion of the vehicle, and cool the refrigerant by receiving running wind and the like.

[0035] In addition, Figure 1 The vehicle-mounted system 1 shown is merely an example, and a vehicle-mounted system to which the flow path forming member 70 (to be described later) of the present embodiment can be applied can be arbitrary as long as it has a circulation path for a refrigerant.

[0036] Hereinafter, as an example, a case where the flow path forming member 70 (to be described later) of the present embodiment is provided for cooling of the battery 5 will be described. However, the flow path forming member 70 (to be described later) of the present embodiment can also be used for cooling of an arbitrary cooling target. For example, the flow path forming member 70 (to be described later) of the present embodiment can also be used in the refrigerant path 12 and / or the refrigerant path 13.

[0037] Figure 2 is a view that shows an example of a relationship between the flow path forming member 70 of the present embodiment and the battery 5.

[0038] The flow path forming member 70 is thermally connected to the battery 5. In addition, the flow path forming member 70 can be formed of a material, such as aluminum, that has good thermal conductivity. In Figure 2In the example shown, two flow path forming members 70 are disposed between each cell 52 of the battery 5. The flow path forming members 70 can be in direct contact with the cells 52 or can be opposed to the cells 52 via other thermally conductive members (e.g., thermally conductive sheets). Further, the number of flow path forming members 70 is arbitrary, and the flow paths within each flow path forming member 70 are in communication with one another.

[0039] Figure 3 is a cross-sectional view along Figure 2 is a cross-sectional view along

[0040] In the present embodiment, as an example, the flow path forming member 70 is a so-called porous tube, and a plurality of pores 72 form the flow path. The flow path forming member 70 is formed from a single member. The flow path formed by the flow path forming member 70 forms a portion of the refrigerant path 12 described above.

[0041] However, since such a flow path forming member 70 has a flow path for the refrigerant to flow through inside, it is useful to have a sealing structure for the flow path. That is, it is useful for such a flow path forming member 70 to have a sealing structure that does not allow the refrigerant to leak from the inside.

[0042] At this point, a method of achieving the sealing structure by using a seal or by combining other cover members can be considered, but in this method, the increase in the number of components and the accompanying increase in the number of manufacturing processes become a problem.

[0043] Therefore, in the present embodiment, as described in detail below, a sealing structure is achieved that ensures the necessary sealing property while improving the manufacturability of the flow path forming member.

[0044] Figure 4 is a perspective view that schematically represents the single product state of the flow path forming member 70, Figure 5 is an explanatory view of the sealing structure 77 (sealing portion 78) of the flow path forming member 70, and is a cross-sectional view along Figure 4 of line B-B. In Figure 4 , the end portion on one side of the flow path forming member 70 is represented in cross-section.

[0045] In Figure 4 , the 3 axes (X, Y, Z) are shown in the right-hand coordinate system. Hereinafter, the cross-sectional view of the XZ plane refers to the cross-sectional view when the XZ plane is cut (view in the direction in which the cross section is visible). Also, the same applies to the cross-sectional view of the YZ plane. Figure 4

[0046] In the present embodiment, as Figure 4 ​As shown, the flow path forming member 70 has a seal structure 77 at the end portion. The seal structure 77 is provided at the end portion in the extending direction of the hole 72 in a manner to close the flow path (hole 72) of the flow path forming member 70. Further, the plurality of holes 72 are arranged in a manner to be aligned in the X direction. Each of the plurality of holes 72 continuously extends in parallel with each other along the Y direction (length direction of the flow path forming member 70). That is, the flow path forming member 70 has the plurality of holes 72 in a manner to have a uniform cross section. Further, in the absence of the seal structure 77 described later, the plurality of holes 72 are respectively open at the end surface in the long side direction of the flow path forming member 70 (refer to the cross-sectional view of the flow path forming member 70 in the XZ plane in FIG. 2). Figure 7 and Figure 8 As shown, the work W is formed of the flow path forming member 70 and the seal structure 77.

[0047] Further, in the present embodiment, the outer shape of the hole 72 in the cross-sectional view in the XZ plane is circular, but can be other forms. In addition, the hole 72 can be arranged in a manner to be aligned by a plurality in the Z direction, or can be arranged in a staggered manner in the Z direction and the Y direction in the cross-sectional view in the XZ plane, and the arrangement of the hole 72 is arbitrary. In addition, the hole 72 can be a hole that forms a single space in the flow path forming member 70.

[0048] In the present embodiment, the flow path forming member 70 has an outer shape that is a flat rectangle in the cross-sectional view in the XZ plane. However, the outer shape of the flow path forming member 70 in the cross-sectional view in the XZ plane is arbitrary. Hereinafter, the flow path forming member 70 will be described in detail by forming two wall surface portions 82, 84 of two long sides of the rectangular outer shape.

[0049] The seal structure 77 of the present embodiment is formed by mechanically joining the two wall surface portions 82, 84 to each other. Further, the wall surface portions 82, 84 are opposed to each other at a distance in the region where the hole 72 is present. On the other hand, the wall surface portions 82, 84 are connected to each other via a partition portion 85 that partitions the respective holes 72.

[0050] In addition, the wall surface portions 82, 84 are joined to each other in the region where the seal structure 77 is formed in a manner to eliminate the hole 72, and a seal portion 78 is formed. The seal portion 78 is a seal portion of the flow path formed by the flow path forming member 70. Therefore, the seal portion 78 is formed outside the position where the flow path is formed.

[0051] The seal portion 78 is provided in a manner to eliminate all of the holes 72 in the region where the seal structure 77 is formed. In Figure 4 In the example shown, the seal portion 78 continuously and linearly extends from one end to the other end in the X direction of the flow path forming member 70 (wall surface portions 82, 84). In this case, each of the plurality of holes 72 is not open but sealed at the end surface in the long side direction of the flow path forming member 70. Thereby, the flow path forming member 70 is continuously sealed by the seal portion 78 throughout the full width in the X direction.

[0052] As Figure 5 illustrated, the seal portion 78 is formed by the mechanical deformation portion 821 of the wall surface portion 82 and the mechanical deformation portion 841 of the wall surface portion 84 which are integrated with each other via the joint surface 90. The mechanical deformation portion such as the mechanical deformation portions 821, 841 refers to a portion which has a mechanical (for example, irreversible) deformation in shape with respect to an original material. Such a seal portion 78 (mechanical deformation portions 821, 841) is formed by a manufacturing method (manufacturing device 200) described later, and the forming method is described later.

[0053] The mechanical deformation portion 821 of the wall surface portion 82 and the mechanical deformation portion 841 of the wall surface portion 84 are integrated with each other by directly joining with respect to each other. Thereby, it is not necessary to additionally provide a seal member, a cover member, or the like, and it is possible to form the seal portion 78 only by the mechanical deformation portions 821, 841 of the two wall surface portions 82, 84.

[0054] As Figure 5 illustrated, the mechanical deformation portion 821 of the wall surface portion 82 and the mechanical deformation portion 841 of the wall surface portion 84 have an S-shaped joint surface 90 in a cross-sectional view in the YZ plane. Hereinafter, a forming method of the S-shaped joint surface 90 is described. Via such an S-shaped joint surface 90, the mechanical deformation portions 821, 841 are integrated (joined), and thereby it is possible to ensure a high sealability.

[0055] Next, with reference to Figure 6 the following drawings, a forming method of the seal structure 77 (seal portion 78) is described together with a manufacturing method of the flow path forming member 70. In addition, as a constituent element of the manufacturing device 200 of the flow path forming member 70, the mold 60 is described. Furthermore, the manufacturing device 200 of the flow path forming member 70, although not illustrated, has a power source, a mechanism, or the like which generates a mold clamping force in addition to the mold 60.

[0056] Figure 6 is a flowchart which schematically represents a flow of the manufacturing method of the flow path forming member 70. Figure 7 is an explanatory view of the workpiece W, and is a schematic perspective view which represents the workpiece W. Figure 8 is a cross-sectional view along the line C-C of Figure 7 . Figure 9 is an explanatory view of the mold 60, and is a schematic perspective view which represents the mold 60. Figure 10 is a cross-sectional view which represents a main portion (a portion which forms the seal portion 78) of the mold 60 before the workpiece W is set. Figure 11 is a cross-sectional view which represents a main portion of the mold 60 in a state where the workpiece W is set. Figure 12 is a cross-sectional view which represents a main portion of the mold 60 at the time of forming the seal portion 78, and is a cross-sectional view which represents a relationship of the workpiece W with the mold 60.

[0057] Further, in the following description relating to the mold 60, the Z direction is set as the up-down direction, and the Z direction positive side is set as the upper side.

[0058] First, the manufacturing method includes a step of preparing a workpiece W for forming the flow path forming member 70 (S600). As shown in Figure 7 and Figure 8 , the workpiece W can be a structure different from the flow path forming member 70 in that only the seal portion 78 (refer to Figure 4 and Figure 5 ) is not formed. That is, as shown in Figure 7 and Figure 8 , each hole 72 of the workpiece W in this stage extends along the Y direction in a manner having an equal cross section (cross-sectional view in the XZ plane).

[0059] Next, the manufacturing method includes a step of disposing the workpiece W in the mold 60 (S602). In Figure 9 , the mold 60 is shown in a state in which the workpiece W is disposed (however, the workpiece W is not visible in Figure 9 ). The mold 60 includes an impression mold 61, a punch 62, a pressing member 63 in the Y direction, a pressing member 64 in the X direction, and a pressing member 65 in the Z direction.

[0060] In a state in which the workpiece W is disposed in the mold 60, the impression mold 61 supports the workpiece W in a manner in which a lower surface (a surface on the Z direction negative side) of the workpiece W is in surface contact (refer to Figure 11 ). However, as shown in Figure 10 , the impression mold 61 has a groove 612 recessed toward the lower side with respect to a basic surface 610 of the surface contact, and a punch receiving portion 613 that receives the punch 62. The punch receiving portion 613, although shallower than the groove 612, has a receiving surface 6130 at a position lower than the basic surface 610. Further, the impression mold 61 has an equal cross section shape achieved at each position in the X direction of the cross section shown in Figure 10 in the region in which the workpiece W is supported.

[0061] The manner of the groove 612 is arbitrary, but is preferably a circular arc (approximately a semicircle) in a cross-sectional view in the YZ plane as shown in Figure 10 . Further, the wall surface 611 from the basic surface 610 to the groove 612 is a straight line shape at a right angle with respect to the basic surface 610 in a cross-sectional view in the YZ plane, but can also be other manners. For example, it can also be a concave manner slightly recessed toward the Y direction negative side, or a convex manner slightly protruding toward the Y direction positive side.

[0062] The punch 62 is arranged at a position opposite in the up-down direction with respect to the punch receiving portion 613. The punch 62 is capable of ascending and descending in the up-down direction, and by descending to a lower position, is capable of applying a local force (load for forming) to the workpiece W on the forging die 61. In addition, the lower end surface of the punch 62 can be planar and in contact with the workpiece W. The lower end surface of the punch 62 is parallel to the receiving surface 6130 and is opposite the receiving surface 6130 as a whole in the up-down direction. The lower end surface of the punch 62 can be opposite a portion of the Y direction positive side of the groove 612 in addition to the entire receiving surface 6130 in the up-down direction.

[0063] The Y direction pressing member 63 presses the Y direction end portion of the workpiece W in the Y direction in a state in which the workpiece W is arranged on the die 60. The Y direction pressing member 63 can be in abutment with the end surface of the workpiece W on the Y direction positive side. The Y direction pressing member 63 can be in abutment with the workpiece W over the entire width in the X direction.

[0064] In addition, the Y direction pressing member 63 can also be movable in the Y direction with respect to the forging die 61 or the like. Alternatively, the Y direction pressing member 63 can also be fixed with respect to the forging die 61. In this case, the Y direction pressing member 63 can also be formed integrally with the forging die 61.

[0065] The X direction pressing member 64 presses the X direction end portion of the workpiece W in the X direction in a state in which the workpiece W is arranged on the die 60. The X direction pressing member 64 is arranged on both sides of the workpiece W in the X direction. The X direction pressing member 64 can be in abutment with the end surface of the workpiece W in the X direction. The X direction pressing member 64 can be in abutment with the workpiece W over the entire range of the Y direction in which the seal structure 77 is formed.

[0066] In addition, the X direction pressing member 64 can also be movable in the X direction with respect to the forging die 61 or the like. Alternatively, the X direction pressing member 64 can also be fixed with respect to the forging die 61. In this case, the X direction pressing member 64 can also be formed integrally with the forging die 61.

[0067] The Z direction pressing member 65 presses the upper surface of the region of the entire upper surface of the workpiece W on the Y direction negative side of the region in the vicinity of the seal structure 77 and in contact with the punch 62 in the downward direction. The Z direction pressing member 65 can also be linked to the punch 62 in the same manner as the punch 62 descends. The Z direction pressing member 65 has a function of pressing downward when formed by the punch 62 so that the material does not lift upward. In addition, the Z direction pressing member 65 can also be positioned with respect to the forging die 61 after being formed in a state in which the workpiece W is arranged on the die 60.

[0068] Further, in the modification, a part or all of the pressing member 63 in the Y direction, the pressing member 64 in the X direction, and the pressing member 65 in the Z direction can be omitted or simplified.

[0069] Next, the manufacturing method includes a step (S604) of lowering the punch 62 of the die 60 to form the seal portion 78 in a state where the workpiece W is set. The workpiece W is deformed by lowering the punch 62, and the seal portion 78 is formed. Specifically, when the punch 62 is lowered, the mechanical deformation portions 821 of the wall surface portion 82 and the mechanical deformation portions 841 of the wall surface portion 84 of the workpiece W are formed according to the principle of the mechanical punching process. At this time, the material of the wall surface portion 84 is pressed into the groove 612, and the wall thickness in the groove 612 is thinned by elongation. By pressing the material of the wall surface portion 82 into the space (see arrow R12) thus formed, joining through the S-shaped joining surface 90 described above is achieved. In addition, by generating deformation along the groove 612, a joining surface 91 along the groove 612 is also formed. Further, the joining surface 91 is continuous from the joining surface 90 in a manner that shares the lower side of the joining surface 90. Figure 12

[0070] Further, in each position of the workpiece W in the X direction that corresponds to the hole 72, the wall surface portions 82 and 84 are directly joined to each other. On the other hand, in each position of the workpiece W in the X direction that corresponds to the partition portion 85, the partition portion 85 itself is flattened in the vertical direction. At this time, the material of the partition portion 85 can move in the X direction in a manner that fills the hole 72. That is, the partition portion 85 can be deformed in a manner that fills the hole 72 together with the wall surface portions 82 and 84.

[0071] Next, the manufacturing method includes a step (S606) of opening the die 60 (i.e., raising the punch 62) and taking out the processed workpiece W (i.e., the finished product of the flow path forming member 70). Further, the taken-out workpiece W can be subjected to post-processing such as removal of burrs to become a finished product.

[0072] According to the present embodiment, the flow path forming member 70 having the seal portion 78 can be manufactured from a single workpiece W. In addition, by using the forging die 61 and the punch 62 described above, the seal portion 78 that seals the entire end portion of the flow path forming member 70 in the X direction can be formed by a single step (S604). That is, by using the forging die 61 having the groove 612 that extends entirely in the X direction with respect to the workpiece W and the punch 62 that extends entirely in the X direction with respect to the workpiece W, the seal portion 78 can be efficiently manufactured.

[0073] ​Further, according to the present embodiment, by using the pressing member 63 in the Y direction and the pressing member 64 in the X direction, it is possible to effectively press the material of the work W into the groove 612 by the punch 62. That is, by the pressing member 63 in the Y direction and the pressing member 64 in the X direction, it is possible to substantially limit the avoidance position of the material of the work W to only the groove 612, and it is possible to effectively form the seal portion 78. Further, since it is possible to limit the range of the seal portion 78 by the pressing member 63 in the Y direction and the pressing member 64 in the X direction, it is possible to prevent the range of the seal portion 78 from being excessively large.

[0074] The above-described embodiments have been described in detail, but are not limited to the specific embodiments, and various modifications and changes can be made within the scope of the patent request. Further, all or a plurality of the components of the above-described embodiments can be combined.

[0075] For example, in the above-described embodiments, the seal portion 78 is formed in a straight line shape when viewed in the Z direction with respect to the end portion of the work W, but the seal portion 78 can be formed at a position other than the end portion of the work W, and can be formed in another shape such as a circular arc shape when viewed in the Z direction.

[0076] Further, in the above-described embodiments, the porous tube is used as the work W, but a pipe material that realizes another flow path structure can be used. For example, a pipe material that forms a flow path in which a plurality of cylindrical fins are arranged can be used as the work W. Further, the cross-sectional shape of the work W in the XZ plane is constant throughout the Y direction, but is not limited thereto. For example, the cross-sectional shape of the work W in the XZ plane can be different only in the Y direction range in which the seal structure 77 is formed.

[0077] Further, in the above-described embodiments, the cross-sectional shape of the punch 62 in the YZ plane is constant throughout the X direction, but is not limited thereto. For example, the cross-sectional shape of the punch 62 in the YZ plane can be different at each position in the X direction depending on the cross-sectional shape of the work W in the YZ plane, or the like (for example, the difference between the partition portion 85 and the hole 72). The same applies to the punch receiving portion 613.

[0078] Further, in the above-described embodiments, the pressing member 63 in the Y direction functions to press the work W in the Y direction from the positive side of the Y direction (i.e., to prevent the work W from moving in the positive side of the Y direction), but in addition thereto, another pressing member that presses the work W in the Y direction from the negative side of the Y direction can be provided.

[0079] Further, in the above-described embodiments, the flow path forming member 70 through which the refrigerant for cooling passes is exemplified, but can be applied to a flow path forming member through which a heating agent for heating an object passes. That is, the flow path forming member 70 of the present embodiment can be embodied as a flow path forming member that forms a flow path through which a heating medium passes.

Claims

1. A flow path forming component for forming a flow path through which a heating medium passes, wherein, It has a first wall surface and a second wall surface. The first wall surface and the second wall surface are spaced apart from each other at the location where the flow path is formed, and have a sealing portion of the flow path outside the location where the flow path is formed. The sealing portion is formed by a mechanically deformable portion of the first wall surface and a mechanically deformable portion of the second wall surface, which are integrated with each other via a mating surface.

2. The flow path forming component according to claim 1, wherein, The sealing portion extends continuously from one end of the first wall surface and the second wall surface to the other end.

3. The flow path forming component according to claim 1 or 2, wherein, The mating surface is S-shaped in the cross-sectional view.

4. A manufacturing method, which is a method for manufacturing a flow path forming component for forming a flow path through which a heating medium passes, wherein, Include: A process for preparing a workpiece having a first and a second wall surface that are spaced apart from each other; The process of setting the workpiece in the mold; as well as For the processing steps performed on the workpiece disposed in the mold, by applying a local force to the workpiece outside the formation location of the flow path, mechanically deformable portions of the first wall surface and the second wall surface are formed and integrated with each other via the mating surface. The mechanically deformable portions of the first wall surface and the mechanically deformable portions of the second wall surface form the sealing portion of the flow path.

5. The manufacturing method according to claim 4, wherein, The processing step includes: pressing the material of the workpiece into a groove of the mold that extends continuously from one end of the first wall surface and the second wall surface to the other end, thereby forming a mechanically deformable portion of the first wall surface and a mechanically deformable portion of the second wall surface.

6. The manufacturing method according to claim 4, wherein, The mating surface is S-shaped in the cross-sectional view.

7. A manufacturing apparatus for a flow path forming component that forms a flow path through which a heating medium passes, wherein, It has a mold capable of setting a workpiece having a first wall surface and a second wall surface that are spaced apart from each other. The mold comprises: Forging die, the forging die having a groove; and A punch that forms mechanically deformable portions of the first and second wall surfaces by pressing the material of the workpiece into the groove. The mechanically deformable portions of the first wall surface and the mechanically deformable portions of the second wall surface form the sealing portion of the flow path.

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