JPWO2014065133A1 - Composite part and method for manufacturing the composite part - Google Patents

Abstract

The composite part 10 is a composite part in which a resin molded body and a metal member are joined. The composite part 10 has a primary resin molded body 20 having a rib portion 24 formed along the outer edge so as to protrude sideways, and a rough surface region 18 provided along the outer edge of the primary resin molded body 20. The metal member 12, the primary resin molded object 20, and the secondary resin molding part 30 for joining the metal member 12 along an outer edge are provided. In the composite component 10, the secondary resin molded portion 30 is formed so as to cover the rough surface region 18 while being bonded to the rib portion 24 of the primary resin molded body 20.

Description

  The present invention relates to a composite part in which a resin molded body and a metal member are joined, and a manufacturing method for manufacturing the composite part.

  A cooling mechanism using a metal casing such as aluminum is used for a cooling device such as an inverter device for an electric vehicle (see, for example, Patent Document 1). In such a cooling device, a member for forming a concave cooling water channel made of aluminum is joined to a copper heat sink in a water-tight state using a bolt fastening or an adhesive with a gasket interposed between the joining members. It was like that.

JP-A-11-346480

  However, the cooling device mainly composed of a metal member has a heavy weight, and a reduction in weight has been desired. In addition, since the cooling water channel forming member and the heat sink are screwed together with a gasket (or adhesive, etc.), a large number of members are required.

  Accordingly, the present invention has been made to solve the above problems, and an object thereof is to provide a composite part capable of reducing the number of parts and reducing the weight, and a method for manufacturing the composite part. And

  The composite part which concerns on this invention is related with the composite part by which the resin molding and the metal member were joined. The composite part includes a primary resin molded body having a rib portion formed along an outer edge so as to protrude sideways, a metal member having a rough surface region provided along the outer edge of the primary resin molded body, A secondary resin molded portion for joining the primary resin molded body and the metal member along the outer edge is provided. In this composite part, the secondary resin molding part is formed so as to cover the rough surface area while being bonded to the rib part of the primary resin molding.

  In the composite component according to the present invention, a primary resin molded body is used to partially form a resin molded body, and a secondary resin molded portion is provided for joining the primary resin molded body and the metal member along the outer edge. I am doing so. For this reason, it is not necessary to use a member such as a gasket, and the number of parts can be reduced. In addition, since a part of the structure is a resin molded body, the weight can be reduced. Further, in the composite part according to the present invention, the metal member has a rough surface area provided along the outer edge of the primary resin molded body, and the secondary resin molded portion is formed so as to cover the rough surface area. ing. In this case, since the secondary resin molded portion can sufficiently enter the rough surface region, the primary resin molded body and the metal member are reliably bonded via the secondary resin molded portion.

  In the above composite part, the primary resin molded body and the secondary resin molded portion may be the same resins or weldable resins. In this case, the primary resin molded body and the secondary resin molded portion can be more reliably joined.

  In the above composite part, the rib portion may have a protruding portion whose thickness is thinner than the base end. In this case, the secondary resin molded portion can enter the region formed by the reduced thickness, and the bonding by welding between the primary resin molded body and the secondary resin molded portion can be further strengthened. When the secondary resin molded portion is welded to the rib portion so as to sandwich the protruding portion, the bonding strength can be further improved.

  In the above composite part, the primary resin molded body may have a flow path space for flowing a fluid.

  Moreover, the manufacturing method of the composite component which concerns on this invention is related with the manufacturing method which joins a resin molding and a metal member, and manufactures a composite component. In this manufacturing method, a step of forming a primary resin molded body having a rib portion formed along an outer edge so as to protrude sideways, and a rough surface region corresponding to the outer edge of the primary resin molded body are formed on a metal member. A secondary resin molded portion along the outer edge of the primary resin molded body formed in the step of forming the primary resin molded body and the metal member in which the rough surface area is formed in the step of forming the rough surface area. And a step of joining. Then, in the step of joining by the secondary resin molding part, the secondary resin molding part is joined to the rib part of the primary resin molding, and the resin molding is performed so as to cover the rough surface region of the metal member.

  In the manufacturing method of the composite part which concerns on this invention, the rough surface area | region corresponding to the outer edge of a primary resin molding is formed in a metal member, and the secondary resin molding part is formed so that this rough surface area may be covered. In this case, since the secondary resin molded portion can sufficiently enter the rough surface region, a composite part in which the primary resin molded body and the metal member are reliably bonded via the secondary resin molded portion is manufactured. Can do. In the composite part manufactured in this way, a part of the structure is a resin molded body using the primary resin molded body, so that it is not necessary to use a member such as a gasket, and the number of parts can be reduced. In addition, since a part of the structure is a resin molded body, the weight can be reduced.

  In the composite part manufacturing method described above, in the step of forming the rough surface region, the laser is scanned so as to form a plurality of laser drawing patterns along the circumference corresponding to the outer edge of the primary resin molded body. It may be formed. In this case, the anchor effect can be suitably generated in the rough surface area where the surface is formed to be uneven, and the bonding between the metal member and the secondary resin molded portion can be made stronger. In addition, an oxide film is formed on the rough surface area by raising the temperature of the metal surface by laser irradiation, and the bonding reaction between this film and the resin is also involved in improving the bonding strength, thereby increasing the bonding strength between the metal member and the secondary resin molded part. Can be increased.

  In the composite part, in the step of forming the rough surface region, each of the plurality of laser drawing patterns may be linear, or the plurality of linear laser drawing patterns may be parallel to each other.

  ADVANTAGE OF THE INVENTION According to this invention, the composite component which can aim at reduction of a number of parts and can be reduced in weight, and the manufacturing method of the said composite component can be provided.

It is a perspective view of the composite component which concerns on this embodiment. It is sectional drawing along the II-II line of the composite component shown in FIG. It is the figure which looked at the composite component shown in FIG. 1 from the metal member side. It is the perspective view except a part of composite component shown in FIG. It is a perspective view of a primary resin molding, (a) is a perspective view seen from the upper part, (b) is a perspective view seen from the lower part. It is sectional drawing of the primary resin molded object shown in FIG. It is a perspective view of a metal member. FIG. 8 is a partially enlarged plan view of the metal member shown in FIG. 7. It is a perspective view which shows the state which has arrange | positioned the primary resin molding on a metal member, (a) is the perspective view seen from upper direction, (b) is the perspective view seen from the downward direction. FIG. 10 is a cross-sectional view of the metal member and the primary resin molded body shown in FIG. 9. It is the perspective view which shows the state which has arrange | positioned the primary resin molded object on the metal member, and performed the secondary shaping | molding, (a) is the perspective view seen from upper direction, (b) is the perspective view seen from the downward direction is there. It is sectional drawing of the metal member, primary resin molding, and secondary resin molding part which are shown in FIG. It is a schematic cross section which shows the modification of a metal member, a primary resin molding, and a secondary resin molding part. It is a schematic cross section which shows another modification of a metal member, a primary resin molding, and a secondary resin molding part. It is a schematic cross section which shows another modification of a metal member, a primary resin molding, and a secondary resin molding part. It is a figure which shows the structure outline | summary of the coolant circulation system for testing a composite component. It is a figure which shows the structure outline | summary for performing the air leak test of a composite component.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description, the same reference numerals are used for the same elements or elements having the same function, and a duplicate description is omitted.

  First, with reference to FIGS. 1-4, the composite component 10 which concerns on this embodiment is demonstrated. FIG. 1 is a perspective view of a composite component 10 according to the present embodiment. 2 is a cross-sectional view of the composite component 10 shown in FIG. 1 taken along the line II-II. FIG. 3 is a view of the composite part shown in FIG. 1 viewed from the metal member side, and illustration of the metal member itself is omitted. FIG. 4 is a perspective view of the composite component 10 shown in FIG. 1 excluding the primary resin molded body 20.

  The composite part 10 is a composite part configured by joining a resin molded body and a metal member, and is used, for example, for a cooling mechanism of an inverter of an electric vehicle. The composite part 10 can reduce the weight and cost of an automobile by forming a part of the part with resin. Such a composite component 10 includes a metal member 12, a primary resin molded body 20, and a secondary resin molded portion 30. The metal member 12 is a plate-like member made of, for example, aluminum. The metal member 12 may be made of iron, titanium, magnesium, copper, or an alloy thereof. The metal member 12 functions as a heat sink (heat radiation).

  The primary resin molded body 20 is made of, for example, polyphenylene sulfide (PPS), and has a substantially rectangular cross section and a flow path 23 (flow path space) extending in a U shape as shown in FIGS. 2 and 3. It is a member which has. The primary resin molded body 20 may be made of a thermoplastic resin such as polymethyl methacrylate (PMMA), polypropylene (PP), or polybutylene terephthalate (PBT), or other thermoplastic resin or thermoplastic resin. You may comprise from resin other than. The primary resin molded body 20 may be polyamide 9T (PA9T). Note that, for example, a coolant circulating liquid (such as 50% ethylene glycol) flows through the flow path 23 of the primary resin molded body 20, and therefore, a material that can ensure chemical resistance against such fluid is preferable.

  As shown in FIGS. 2, 5, and 6, the primary resin molded body 20 has a rib portion 24 formed along the outer edge thereof. The rib portion 24 includes a base end portion 24a on the channel 23 side and a protruding portion 24b that is thinner than the base end portion 24a and further protrudes to the side. A secondary resin molding portion 30 to be described later is welded and joined to the rib portion 24 so as to sandwich the protruding portion 24b. The rib portions 24 are formed on both sides on the opening side of the flow path 23 in a direction parallel to the surface direction of the metal member 12.

  Further, the primary resin molded body 20 is positioned with respect to the metal member 12 by being inserted into the outflow inlets 21 and 22 for inflow or outflow of the fluid flowing through the flow path 23 and the positioning hole 12 a of the metal member 12. The positioning pin 25 is provided.

  The secondary resin molded portion 30 is a resin molded portion for joining the primary resin molded body 20 and the metal member 12 along the outer edge of the primary resin molded body 20. The secondary resin molding part 30 is made of, for example, PPS, which is the same material as the primary resin molding 20, but may be made of other resin materials, PMMA, PP, PBT, PA9T, or the like. As shown in FIG. 2, the secondary resin molded portion 30 has, for example, a shape in which the cross-sectional shape is a combination of a semicircle and a rectangle, and the protruding portion 24 b of the rib portion 24 of the primary resin molded body 20 therebetween. Is supposed to be located.

  The secondary resin molded portion 30 is formed in a circumferential shape along the upper surface of the rib portion 24 so as to be welded and joined to the rib portion 24 formed along the outer edge of the primary resin molded body 20 (for example, FIG. 4). Moreover, the secondary resin molding part 30 is also formed so that the rough surface area | region 18 (refer FIG. 7) formed in the metal member 12 may be covered.

  Here, the rough surface area 18 of the metal member 12 will be described. As shown in FIG. 7, a circumferential rough surface region 18 is formed on the metal member 12 so as to correspond to the outer edge of the primary resin molded body 20. That is, the metal member 12 has a rough surface region 18 provided along the outer edge of the primary resin molded body 20.

  The rough surface region 18 has a metal surface roughened into an uneven shape, and has a linear shape extending in the circumferential direction. In the present embodiment, the rough surface area 18 is a linear area 18a composed of a plurality of laser drawing patterns, as shown in FIG. The linear regions 18a are arranged at equal intervals and are parallel to each other. The rough surface area 18 is not necessarily limited to those processed by a laser, and the metal surface may be roughened using a chemical solution or the like, but the circumferential direction (that is, the inner side to the outer side of the flow path 23) may be used. By performing the laser processing along the direction crossing the direction toward the surface), the liquid-tightness between the metal member 12 and the secondary resin molded portion 30 (primary resin molded body 20) can be further ensured. .

  As shown in FIG. 2, the secondary resin molded portion 30 is disposed along the outer edge of the primary resin molded body 20 so as to cover the rough surface region 18, and the metal member 12 and the secondary resin molded portion. And are liquid-tightly joined. Further, the secondary resin molded portion 30 is bonded to the rib portion 24 of the primary resin molded body 20 in a liquid-tight manner by welding. Thereby, the fluid flowing in the flow path 23 is prevented from leaking out of the composite component 10.

  Then, the manufacturing method which manufactures the composite component 10 provided with the structure mentioned above is demonstrated with reference to FIGS.

  First, as shown in FIGS. 5 and 6, a primary resin molded body 20 having a flow path 23 extending in a U-shape and a rib portion 24 extending along the outer edge so as to protrude sideways is formed by injection molding. . During the molding, the primary resin molded body 20 is also formed with the outflow ports 21 and 22 and the positioning pins 25. The rib portion 24 is formed to have a base end portion 24a having a predetermined thickness and a protruding portion 24b that protrudes further laterally from the base end portion 24a. Since the injection molding of the primary resin molded body 20 is a general molding technique, detailed description thereof is omitted.

  Subsequently, a plate-shaped metal member and a laser irradiation apparatus are prepared. And as FIG. 7 shows, the rough surface area | region 18 is formed in the surface of the metal member 12 so that it may become U shape corresponding to the outer edge of the primary resin molding 20. As shown in FIG. By this laser irradiation, as shown in FIG. 8, a large number of fine holes connected in a line are formed on the metal surface corresponding to the laser drawing pattern 18a. As shown in FIG. 8, the rough surface area 18 is composed of a plurality of laser drawing patterns 18a. Each laser drawing pattern 18a is parallel to each other. The metal member 12 is also formed with a positioning hole 12a.

  In the above description, the laser drawing patterns 18a are parallel to each other. However, the laser drawing patterns 18a may be linear with different intervals between adjacent laser patterns. Other examples of the laser drawing pattern may be a jagged pattern, a pattern in which round shapes are connected, or a pattern in which unevenness extends.

  Subsequently, as shown in FIG. 9 and FIG. 10, the metal member 12 is arranged so that the opening of the primary resin molded body 20 faces the one surface of the metal member 12 in which the rough surface region 18 is formed. The positioning holes 12a and the positioning pins 25 of the primary resin molded body 20 are fitted together, and the metal member 12 and the primary resin molded body 20 are arranged in a predetermined mold. In the example shown in FIGS. 9 and 10, rectangular reinforcing plates 14 and 16 made of aluminum are arranged in the opening of the primary resin molded body 20. This is a member for preventing the opening of the primary resin molded body 20 from being crushed during the secondary molding described later, and the reinforcing plates 14 and 16 are used by increasing the thickness of the rib portion 24 and the like. Of course, it is possible to adopt a configuration without this. Moreover, you may make it use the metal member 12 which raised the location corresponded to these reinforcement boards 14 and 16 in convex shape. In this case, the swelled area corresponding to the reinforcing plates 14 and 16 can not only provide a reinforcing function, but also can provide an alignment function between the metal member 12 and the primary resin molded body 20.

  Subsequently, as shown in FIGS. 11 and 12, the metal member 12 and the primary resin molded body 20 aligned with each other are bridge-joined by the secondary resin molded portion 30 along the outer edge of the primary resin molded body 20. Secondary molding is performed. In the secondary molding, the secondary resin molding portion 30 is welded and joined to the rib portion 24 of the primary resin molded body 20, and the resin molding is performed so as to cover the rough surface region 18 of the metal member 12. At the time of this molding, the secondary resin molding part 30 is molded so as to sandwich the rib part 24.

  Further, when performing the secondary molding, the pressure applied to the restraining portion 24c of the primary resin molded body 20 is set to be slightly higher than the molding pressure of other portions. Thereby, the secondary resin molding part 30 can be prevented from entering the restraining part 24 c, and the primary resin molded body 20 and the metal member 12 can be more reliably joined by the secondary resin molding part 30. Moreover, when performing secondary molding, it is preferable that the injection pressure is set to 30 MPa or more and sufficient holding pressure is applied.

  Subsequently, when the secondary molding is completed, the composite part 10 is cooled and solidified, and then the composite in which the metal member 12 and the primary resin molded body 20 are joined by the secondary resin molded portion 30 from the molding die. The part 10 is taken out. Thereby, the composite component 10 shown by FIG. 1 can be obtained.

  As described above, in the composite component 10 according to the present embodiment, the primary resin molded body 20 is used to partially form a resin molded body, and the primary resin molded body 20 and the metal member 12 are joined along the outer edge. For this purpose, a secondary resin molding part 30 is provided. For this reason, it is not necessary to use a member such as a gasket, the number of parts can be reduced, and the weight can be reduced because a part of the structure is a resin molded body.

  In the composite part 10, the metal member 12 has the rough surface area 18 provided along the outer edge of the primary resin molded body 20, and the secondary resin molded portion 30 is formed so as to cover the rough surface area 18. Has been. In this case, since the secondary resin molded part 30 can sufficiently enter the rough surface region 18, the primary resin molded body 20 and the metal member 12 are reliably bonded via the secondary resin molded part 30.

  Moreover, in the composite component 10 which concerns on this embodiment, the primary resin molding 20 and the secondary resin molding part 30 are the same resin. For this reason, the primary resin molding 20 and the secondary resin molding part 30 are more reliably joined. The primary resin molded body 20 and the secondary resin molded portion 30 are not necessarily the same resin as long as they are weldable resins.

  In the composite component 10 according to the present embodiment, the rib portion 24 has a protruding portion 24b whose thickness is thinner than the base end portion 24a. In this case, it becomes possible for the secondary resin molding part 30 to enter the region formed by reducing the thickness, and the welding between the primary resin molding 20 and the secondary resin molding part 30 can be further strengthened. . In particular, since the secondary resin molded portion 30 is welded and bonded to the rib portion 24 so as to sandwich the protruding portion 24b, the bonding strength is further improved.

  Moreover, in the manufacturing method of the composite component 10, the rough surface area | region 18 corresponding to the outer edge of the primary resin molding 20 is formed in the metal member 12, and the secondary resin molding part 30 is formed so that this rough surface area | region 18 may be covered. ing. For this reason, since the secondary resin molding part 30 can fully enter into the rough surface area 18, the composite in which the primary resin molding 20 and the metal member 12 are reliably bonded via the secondary resin molding part 30. The component 10 can be manufactured. In the composite part 10 manufactured in this way, since a part of the structure is a resin molded body using the primary resin molded body 20, it is not necessary to use a member such as a gasket, and the number of parts can be reduced. Moreover, since a part of the structure is a resin molded body, the weight can be reduced.

  Further, in the method of manufacturing the composite part 10, when the rough surface region 18 is formed, the rough scanning region 18 is scanned by scanning the laser so that a plurality of laser drawing patterns are formed along the circumference corresponding to the outer edge of the primary resin molded body 20. A surface region 18 is formed. For this reason, an anchor effect can be suitably produced in the rough surface region 18 whose surface is formed with irregularities, and the bonding between the metal member 12 and the secondary resin molded portion 30 can be made stronger. In addition, an oxide film is formed on the rough surface region 18 by raising the temperature of the metal surface by laser irradiation, and the bonding reaction between the film and the resin is also involved in improving the bonding strength, so that the metal member 12 and the secondary resin molded portion 30 Bonding strength can be further increased. Since processing is performed using a laser, the processing time can be shortened and the irradiation intensity can be easily adjusted.

  In the composite component 10 described above, the primary resin molded body 20 having the rib portion 24 including the base end portion 24a and the protruding portion 24b as illustrated in FIG. 6 is illustrated, but the shape of the rib portion and the like is limited to this. However, various modifications can be made without departing from the scope of the present invention.

  For example, as shown in (a) and (b) of FIG. 13, the protruding portion may be a rib portion 24 having a triangular cross section. As shown in FIG. 13C, the rib portion 24 may be formed such that the width in the thickness direction of the protruding portion is thinner than the thickness of the secondary resin molded portion 30. As shown in FIG. 13D, the protruding portion of the rib portion 24 may be provided at the center in the thickness direction. As shown in FIG. 13E, the protruding portion of the rib portion 24 may have a trapezoidal cross section. As shown in (f) of FIG. 13, the protruding portion may have a triangular cross section, and the thickness may be thinner than the base end portion.

  Further, as shown in FIGS. 14A and 14B, the secondary resin molded portion 30 having a different cross-sectional shape may be provided without providing the protruding portion. As shown in FIGS. 14C and 14D, the metal member 12 is provided with a hole 12b along the outer edge, and the rib 24 of the primary resin molded body 20 is also provided with a through hole 24d to provide a secondary resin. The molding part 30 may be formed so as to fill the hole part 12b and the through hole 24d. As shown in (e) and (f) of FIG. 14, the metal member 12 may be provided with a hole having a portion penetrating to the back surface, and the secondary resin molding portion 30 may be provided there. In this case, since the resin molding is performed from the back surface side of the metal member 12, the secondary resin molding portion 30 does not appear on the front surface side, so that the appearance of the composite component 10 can be finished more beautifully.

  Further, as shown in FIGS. 15A and 15B, the metal member 12 is provided with a hole 12 b along the outer edge, and the secondary resin molding portion 30 is joined to the lower surface and the side surface of the rib portion 24. You may do it. As shown in FIGS. 15 (c) to 15 (e), the metal member 12 is provided with a hole portion 12b along the outer edge, and the rib portion 24 is completely inserted into the hole portion 12b so that the secondary resin molded portion is formed. 30 may be formed. As shown in FIG. 15 (f), the protruding portion of the rib portion 24 may be provided at the lower portion in the thickness direction. Of course, the present invention may be used for other members (for example, a water pump).

  EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited to these Examples.

Example 1
First, the primary resin molding 20 shown in FIG. 5 was formed using PPS resin. Subsequently, a rough surface area 18 corresponding to the outer edge of the primary resin molded body 20 was formed on the metal member 12 (made of aluminum) by laser processing. The laser conditions were such that the line width was 100 μm to 120 μm, the line depth was 90 μm to 110 μm, the line spacing was 210 μm, the number was 6, and the number of laser scans for each line was 8 times. Thereafter, the metal member 12 and the primary resin molded body 20 were joined by a secondary resin molded portion 30 made of PPS resin, which is the same material as the primary resin molded body 20, to produce a plurality of composite parts 10.

  Subsequently, three composite parts 10 were connected in succession to the test system 50 shown in FIG. 16, and the following tests were performed. The test system 50 includes a flow path 51, a water amount sensor 52, a water pump 53, a DC stabilized power supply device 54, a temperature sensor 55, a heater 56, a relay 57, a temperature regulator 58, a water amount sensor amplifier 59, an AC / DC 60, and A coolant tank 61 is included. The test system 50 can circulate a predetermined fluid in the three composite parts 10 while adjusting the temperature of the predetermined fluid.

And the following tests were done using this test system 50.
・ Low temperature operation test (ISO 16750-4)
Test conditions: Under an environment of −40 ° C., a coolant without temperature setting is circulated for 24 hours.
・ High temperature operation test (ISO 16750-4)
Test conditions: In a 105 ° C. environment, a 65 ° C. coolant was circulated for 96 hours.
・ Temperature cycling test (ISO 16750-4)
Test conditions: Temperature change from −40 ° C. to 105 ° C. for 300 cycles (high temperature 110 minutes, low temperature 90 minutes, temperature transition 280 minutes as one cycle). The coolant at 65 ° C. is circulated during the temperature rise from room temperature and the high temperature holding.
High-temperature and high-humidity operation test Test conditions: 65 ° C. coolant circulated for 840 hours in an environment of 85 ° C. and 85% RH.
Moreover, the following tests were also performed using a predetermined test apparatus.
・ Thermal shock test (ISO 16750-4)
Test conditions: left at -40 ° C and 105 ° C for 40 minutes, and 1000 cycles.
・ Ice water impact test / water splash test (ISO 16750-4)
Test conditions: Inverter storage is 105 ° C., water temperature is 0 to 4 ° C., and 100 cycles are performed at a flow rate of 3 to 4 liters / 3 seconds.
-Mixed gas flow corrosion test (ISO 16750-4)
Test conditions: H ₂ S, SO ₂ , Cl ₂ and NO ₂ are enclosed and left for 21 days (normal temperature, humidity is 75% RH).
・ Chemical stress test (ISO 16750-5)
23 kinds of predetermined chemicals are applied, and a maximum of 105 ° C. and a maximum of 22 hours are maintained for 2 cycles.

  The composite part 10 described in Example 1 described above satisfied a predetermined reference value in any of the above tests.

  Further, using the air leak test system 70 shown in FIG. 17, the composite part 10 was pressurized with 200 KPa and left for 1 minute with the valve 74 closed, and then the pressure was measured. As a result of the measurement, there was no pressure drop. The air leak test system 70 includes a pressure sensor 71, an air compressor 72, a regulator 73, a manual valve 74, an air coupler 75, a pressure sensor amplifier 76, and an AC-DC 77. It was connected to pressurize the pressure. The other outlet 22 of the composite part 10 was hermetically closed by a lid 40.

  The present invention can be applied to a composite part in which a resin molded body and a metal member are joined, and an application for manufacturing the composite part.

DESCRIPTION OF SYMBOLS 10 ... Composite part, 12 ... Metal member, 18 ... Rough surface area | region, 20 ... Primary resin molding, 24 ... Rib part, 24b ... Projection part, 30 ... Secondary resin molding part.

Claims (9)

A composite part in which a resin molded body and a metal member are joined,
A primary resin molded body having a rib portion formed along the outer edge so as to protrude sideways;
A metal member having a rough surface region provided along the outer edge of the primary resin molded body;
A secondary resin molding part for joining the primary resin molded body and the metal member along the outer edge;
The secondary resin molded portion is a composite part that is joined to the rib portion of the primary resin molded body and covers the rough surface region.   The composite component according to claim 1, wherein the primary resin molded body and the secondary resin molded portion are the same resins or weldable resins.   The composite part according to claim 1, wherein the rib portion has a protruding portion whose thickness is thinner than a base end.   The composite part according to claim 3, wherein the secondary resin molding portion is joined to the rib portion so as to sandwich the protruding portion.   The said primary resin molding is a composite component as described in any one of Claims 1-4 which has the space for flow paths for flowing a fluid. A manufacturing method for manufacturing a composite part by joining a resin molded body and a metal member,
Molding a primary resin molded body having a rib portion formed along an outer edge so as to protrude laterally;
Forming a rough surface region corresponding to the outer edge of the primary resin molded body on a metal member;
The primary resin molded body formed in the step of molding the primary resin molded body and the metal member in which the rough surface area is formed in the step of forming the rough surface area are formed along the outer edge of the secondary resin. And joining with a molded part,
In the step of joining by the secondary resin molding part, the secondary resin molding part is joined to the rib part of the primary resin molded body and resin molding is performed so as to cover the rough surface area of the metal member. A manufacturing method for parts.   The step of forming the rough surface region scans a laser so as to form a plurality of laser drawing patterns along a circumference corresponding to the outer edge of the primary resin molded body, thereby forming the rough surface region. 6. A method for producing a composite part according to 6.   The method of manufacturing a composite part according to claim 7, wherein in the step of forming the rough surface region, each of the plurality of laser drawing patterns is linear. The method of manufacturing a composite part according to claim 8, wherein the plurality of linear laser drawing patterns are parallel to each other.

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