WO2016140096A1 - Joining structure - Google Patents

Joining structure Download PDF

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Publication number
WO2016140096A1
WO2016140096A1 PCT/JP2016/055100 JP2016055100W WO2016140096A1 WO 2016140096 A1 WO2016140096 A1 WO 2016140096A1 JP 2016055100 W JP2016055100 W JP 2016055100W WO 2016140096 A1 WO2016140096 A1 WO 2016140096A1
Authority
WO
WIPO (PCT)
Prior art keywords
filler
metal member
resin member
shape
concave portion
Prior art date
Application number
PCT/JP2016/055100
Other languages
French (fr)
Japanese (ja)
Inventor
豊博 今泉
恭司 北村
和義 西川
Original Assignee
オムロン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オムロン株式会社 filed Critical オムロン株式会社
Publication of WO2016140096A1 publication Critical patent/WO2016140096A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0246—Cutting or perforating, e.g. burning away by using a laser or using hot air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30325—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of cavities belonging to at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72143—Fibres of discontinuous lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys

Definitions

  • the present invention relates to a bonded structure.
  • a joint structure including a metal member and a resin member is known (for example, see Patent Document 1).
  • the metal member and the resin member are bonded together by filling the concave portion formed in the metal member with the resin member.
  • a fibrous filler is included in the resin member. And this joining structure is comprised so that a fine uneven surface may be formed in a metal member, and a filler can penetrate
  • the linear expansion coefficient is anisotropic due to the shape thereof, and therefore stress tends to concentrate on the joint interface when the filler penetrates the fine irregular surface. Therefore, it is considered that the resistance to thermal shock is reduced.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a bonded structure that can suppress a decrease in resistance to thermal shock.
  • a joining structure according to the present invention includes a metal member having a concave portion formed on a surface thereof and a resin member containing a filler, and the metal member and the resin member are joined by filling the concave portion with the resin member. ing. And the joining structure is comprised so that the penetration
  • the filler is formed in a fiber shape, a plate shape, or a needle shape, and may be arranged so as to face the horizontal direction with respect to the surface of the metal member.
  • the filler is oriented in the horizontal direction with respect to the surface means that, for example, among all the fillers contained in the resin member, 60% or more of the filler has an inclination with respect to the horizontal direction within ⁇ 45 degrees.
  • the concave portion of the metal member is formed in a circular shape when viewed in plan, and the filler is formed in a fiber shape, a plate shape, or a needle shape, and the length in the longitudinal direction is the concave portion. It may be larger than the opening diameter.
  • the opening diameter of the concave portion is the opening diameter of the surface.
  • the length in the longitudinal direction of the filler is larger than the opening diameter of the concave portion.
  • the length in the longitudinal direction is larger than the opening diameter of the concave portion. It means that there are 80% or more of large fillers.
  • the concave portion of the metal member may be formed in a circular shape when seen in a plan view, and may have a protruding portion protruding inward on the inner peripheral surface thereof.
  • the bonded structure of the present invention it is possible to suppress a decrease in resistance to thermal shock.
  • the bonded structure 100 includes a metal member 1 and a resin member 2, and the metal member 1 and the resin member 2 are bonded to each other.
  • the metal member 1 has a plurality of perforated portions 12 formed on the surface 11 thereof.
  • the perforated portion 12 is formed in a circular shape when seen in a plan view, and its inner peripheral surface is formed in a cylindrical shape. That is, in the perforated part 12, the opening diameter in the depth direction (Z direction) is the same.
  • the perforated part 12 has an opening diameter of about 50 ⁇ m and a depth of 85 ⁇ m or more.
  • the perforated part 12 is an example of the “concave part” in the present invention.
  • the material of the metal member 1 includes iron metal, stainless steel metal, copper metal, aluminum metal, magnesium metal, and alloys thereof. Moreover, a metal molding may be sufficient and zinc die-casting, aluminum die-casting, powder metallurgy, etc. may be sufficient.
  • the resin member 2 is provided on the surface 11 of the metal member 1 and filled in the perforated portion 12. Thereby, the metal member 1 and the resin member 2 are mechanically joined by the anchor effect.
  • the resin member 2 is a thermoplastic resin or a thermosetting resin.
  • thermoplastic resin examples include PVC (polyvinyl chloride), PS (polystyrene), AS (acrylonitrile styrene), ABS (acrylonitrile butadiene styrene), PMMA (polymethyl methacrylate), PE (polyethylene), PP (Polypropylene), PC (polycarbonate), m-PPE (modified polyphenylene ether), PA6 (polyamide 6), PA66 (polyamide 66), POM (polyacetal), PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PSF ( Polysulfone), PAR (polyarylate), PEI (polyetherimide), PPS (polyphenylene sulfide), PES (polyethersulfone), PEEK (polyetheretherketone), P I (polyamideimide), LCP (liquid crystal polymer), PVDC (polyvinylidene chloride), PTFE (polyteth
  • TPE thermoplastic elastomer
  • examples of TPE include TPO (olefin-based), TPS (styrene-based), TPEE (ester-based), TPU (urethane-based), TPA (nylon-based), And TPVC (vinyl chloride type) is mentioned.
  • thermosetting resin examples include EP (epoxy), PUR (polyurethane), UF (urea formaldehyde), MF (melamine formaldehyde), PF (phenol formaldehyde), UP (unsaturated polyester), and SI (silicone).
  • EP epoxy
  • PUR polyurethane
  • UF urea formaldehyde
  • MF melamine formaldehyde
  • PF phenol formaldehyde
  • UP unsaturated polyester
  • SI silicone
  • FRP fiber reinforced plastic
  • the resin member 2 includes a filler (filler) 21 having a function of reinforcing the resin member 2.
  • the filler 21 is an inorganic filler formed in a fiber shape, a plate shape, or a needle shape. That is, the filler 21 is formed so as to extend in a predetermined direction, and has an anisotropy in the linear expansion coefficient due to its shape.
  • the resin member 2 may contain other fillers (for example, an organic filler or a spherical inorganic filler).
  • fibrous inorganic filler examples include glass fiber, carbon fiber, aramid fiber, vinylon fiber, alumina fiber, and metal fiber.
  • plate-like inorganic filler examples include talc, mica, glass flakes, and graphite.
  • acicular inorganic fillers include wollastonite, potassium titanate, and zonotlite.
  • the filler 21 is disposed so as to face the horizontal direction (X direction) with respect to the surface 11 of the metal member 1. That is, the filler 21 is arranged so that the longitudinal direction thereof is along the surface 11. For this reason, the penetration
  • all the fillers 21 included in the resin member 2 do not have to be strictly oriented in the horizontal direction. That is, the filler 21 in the first embodiment is oriented in the horizontal direction with respect to the surface 11, for example, in all the fillers 21 included in the resin member 2, the inclination with respect to the horizontal direction is within ⁇ 45 degrees.
  • the filler 21 is 60% or more.
  • the length of the filler 21 in the longitudinal direction is larger than the opening diameter of the perforated part 12. Also by this, it is possible to suppress the penetration of the filler 21 into the inside of the perforated part 12.
  • the filler 21 whose length in the longitudinal direction is smaller than the opening diameter of the perforated part 12 may be included. That is, the length in the longitudinal direction of the filler 21 in the first embodiment is larger than the opening diameter of the perforated part 12, for example, in all the fillers 21 included in the resin member 2. It means that there is 80% or more of the filler 21 whose diameter is larger than the opening diameter of the perforated part 12.
  • the ratio of the perforated part 12 in which the filler 21 does not penetrate into the lower half region in the depth direction is 50% or more. More preferably, the ratio of the perforated part 12 in which the filler 21 does not penetrate at all is 80% or more.
  • the surface 11 of the metal member 1 is irradiated with a processing laser L ⁇ b> 1 to form a perforated portion 12 on the surface 11 of the metal member 1.
  • the processing laser L1 is, for example, a fiber laser.
  • the resin member 2 including the filler 21 is formed on the surface 11 of the metal member 1 by insert molding. Specifically, the melted resin member 2 is filled in the perforated portion 12, and then the resin member 2 is solidified. Thereby, the metal member 1 and the resin member 2 are mechanically joined by the anchor effect.
  • the filler 21 is directed in the horizontal direction (X direction) when the resin member 2 is solidified. .
  • the resin member 2 may be bonded to the metal member 1 by hot pressing, laser, ultrasonic waves, or electromagnetic induction.
  • the resin member 2 is arranged on the surface 11 of the metal member 1 in which the perforated portion 12 is formed.
  • the filler 21 contained in the resin member 2 is arranged in advance so as to face the horizontal direction.
  • the resin member 2 is solidified.
  • the metal member 1 and the resin member 2 are mechanically joined by the anchor effect.
  • the filler 21 is substantially maintained in the state of facing the horizontal direction even after the resin member 2 is melted and solidified.
  • the filler 21 having anisotropy in the linear expansion coefficient due to the shape is configured by suppressing the penetration of the filler 21 into the perforated part 12. It can be made difficult to arrange in a deep region (for example, a lower half region) in the perforated part 12. That is, the resin member 2 can occupy a deep region inside the perforated part 12. Thereby, since it can suppress that stress concentrates on the joining interface of the metal member 1 and the resin member 2, it can suppress that the tolerance with respect to a thermal shock falls.
  • the filler 21 by placing the filler 21 so as to face the horizontal direction (X direction) with respect to the surface 11 of the metal member 1, the filler 21 is less likely to enter the perforated part 12. be able to.
  • the length of the filler 21 in the longitudinal direction larger than the opening diameter of the perforated part 12, it is possible to make it difficult for the filler 21 to enter the perforated part 12.
  • the joining structure 200 includes a metal member 1 a and a resin member 2, and the metal member 1 a and the resin member 2 are joined.
  • a plurality of perforations 12a are formed on the surface 11 of the metal member 1a.
  • the perforated portion 12a is formed in a circular shape when seen in a plan view, and has a protruding portion 13a that protrudes inwardly on the inner peripheral surface thereof.
  • the perforated part 12a has, for example, an opening diameter of the surface 11 of about 50 ⁇ m and a depth of 85 ⁇ m or more.
  • the protrusion 13a is formed over the entire length in the circumferential direction, and is formed in an annular shape.
  • the perforated portion 12a is an example of the “concave portion” in the present invention.
  • the perforated portion 12a has a first reduced diameter portion whose opening diameter decreases from the surface 11 side toward the bottom in the depth direction, and a large opening diameter from the surface 11 side toward the bottom in the depth direction. And the second reduced diameter portion having a smaller opening diameter from the surface 11 side toward the bottom in the depth direction.
  • the first reduced diameter portion is formed so as to be linearly reduced
  • the enlarged diameter portion is formed so as to be enlarged in a curved shape
  • the second reduced diameter portion is formed so as to be reduced in a curved shape.
  • the protruding portion 13a is constituted by the first reduced diameter portion and the enlarged diameter portion.
  • the perforated portion 12a is formed by, for example, a processing laser.
  • a processing laser a laser capable of pulse oscillation is preferable, and a fiber laser, a YAG laser, a YVO 4 laser, a semiconductor laser, a carbon dioxide gas laser, and an excimer laser can be selected.
  • a second harmonic of a YAG laser, a YVO 4 laser, or a semiconductor laser is preferable.
  • Such a perforated part 12a is formed by a laser in which one pulse is composed of a plurality of sub-pulses.
  • This laser is suitable for forming the perforated portion 12a because energy can be easily concentrated in the depth direction.
  • a processing apparatus capable of irradiating such a laser there can be mentioned fiber laser marker MX-Z2000 or MX-Z2050 manufactured by OMRON.
  • one period of the sub-pulse is 15 ns or less. This is because when one period of the sub-pulse exceeds 15 ns, energy is easily diffused due to heat conduction, and it becomes difficult to form the perforated portion 12a.
  • one cycle of the subpulse is a total time of the irradiation time for one subpulse and the interval from the end of the irradiation of the subpulse to the start of the irradiation of the next subpulse.
  • the number of subpulses in one pulse is preferably 2 or more and 50 or less. This is because when the number of sub-pulses exceeds 50, the output per unit of sub-pulses becomes small and it becomes difficult to form the perforated part 12a.
  • the perforated part 12 is cylindrical
  • the present invention is not limited thereto, and the perforated part may be formed in a mortar shape. That is, the perforated part may be formed so that the opening diameter becomes smaller as it becomes deeper.
  • the circular perforated portion 12 is shown as a plan view as an example of the concave portion, but the present invention is not limited to this, and a groove portion may be formed as the concave portion.
  • the present invention can be used for a bonded structure in which a resin member containing a filler and a metal member are bonded.

Landscapes

  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

This joining structure is provided with: a metal member on the surface of which recesses are formed; and a resin member that includes a filler. The metal member and the resin member are joined by filling the resin member into the recessed sections. Further, the joining structure is configured so as to prevent the infiltration of the filler into the recessed sections.

Description

接合構造体Bonding structure
　本発明は、接合構造体に関する。 The present invention relates to a bonded structure.
　従来、金属部材と樹脂部材とを備える接合構造体が知られている（たとえば、特許文献１参照）。このような接合構造体では、金属部材に形成された凹状部に樹脂部材が充填されることにより、金属部材および樹脂部材が接合されている。 Conventionally, a joint structure including a metal member and a resin member is known (for example, see Patent Document 1). In such a bonded structure, the metal member and the resin member are bonded together by filling the concave portion formed in the metal member with the resin member.
　特許文献１の接合構造体では、繊維状の充填剤が樹脂部材に含まれている。そして、この接合構造体は、金属部材に微細凹凸面が形成され、その微細凹凸面に充填剤が侵入可能に構成されている。これにより、金属部材および樹脂部材の接合界面において、充填剤が有する補強効果を発揮させることが可能である。 In the joint structure of Patent Document 1, a fibrous filler is included in the resin member. And this joining structure is comprised so that a fine uneven surface may be formed in a metal member, and a filler can penetrate | invade into the fine uneven surface. Thereby, the reinforcing effect which a filler has can be exhibited in the joining interface of a metal member and a resin member.
特開２０１４－２２３７８１号公報JP 2014-223781 A
　しかしながら、繊維状の充填剤では、その形状に起因して線膨張係数に異方性があることから、微細凹凸面に充填剤が侵入している場合には、接合界面に応力が集中しやすくなり、熱衝撃に対する耐性が低下することが考えられる。 However, in the case of fibrous fillers, the linear expansion coefficient is anisotropic due to the shape thereof, and therefore stress tends to concentrate on the joint interface when the filler penetrates the fine irregular surface. Therefore, it is considered that the resistance to thermal shock is reduced.
　本発明は、上記の課題を解決するためになされたものであり、本発明の目的は、熱衝撃に対する耐性が低下するのを抑制することが可能な接合構造体を提供することである。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a bonded structure that can suppress a decrease in resistance to thermal shock.
　本発明による接合構造体は、表面に凹状部が形成された金属部材と、充填剤を含む樹脂部材とを備え、凹状部に樹脂部材が充填されることにより、金属部材および樹脂部材が接合されている。そして、接合構造体は、凹状部の内部に対する充填剤の侵入が抑制されるように構成されている。 A joining structure according to the present invention includes a metal member having a concave portion formed on a surface thereof and a resin member containing a filler, and the metal member and the resin member are joined by filling the concave portion with the resin member. ing. And the joining structure is comprised so that the penetration | invasion of the filler with respect to the inside of a recessed part may be suppressed.
　上記接合構造体において、充填剤は、繊維状、板状または針状に形成されており、金属部材の表面に対して水平方向を向くように配置されていてもよい。なお、充填剤が表面に対して水平方向を向くとは、たとえば、樹脂部材に含まれる全ての充填剤の中に、水平方向に対する傾斜が±４５度以内の充填剤が６０％以上あることをいう。 In the above bonded structure, the filler is formed in a fiber shape, a plate shape, or a needle shape, and may be arranged so as to face the horizontal direction with respect to the surface of the metal member. Note that the filler is oriented in the horizontal direction with respect to the surface means that, for example, among all the fillers contained in the resin member, 60% or more of the filler has an inclination with respect to the horizontal direction within ± 45 degrees. Say.
　上記接合構造体において、金属部材の凹状部は、平面的に見て円形に形成され、充填剤は、繊維状、板状または針状に形成されており、長手方向の長さが凹状部の開口径よりも大きくてもよい。なお、この凹状部の開口径は表面の開口径である。また、充填剤の長手方向の長さが凹状部の開口径よりも大きいとは、たとえば、樹脂部材に含まれる全ての充填剤の中に、長手方向の長さが凹状部の開口径よりも大きい充填剤が８０％以上あることをいう。 In the joined structure, the concave portion of the metal member is formed in a circular shape when viewed in plan, and the filler is formed in a fiber shape, a plate shape, or a needle shape, and the length in the longitudinal direction is the concave portion. It may be larger than the opening diameter. Note that the opening diameter of the concave portion is the opening diameter of the surface. Moreover, the length in the longitudinal direction of the filler is larger than the opening diameter of the concave portion. For example, in all the fillers included in the resin member, the length in the longitudinal direction is larger than the opening diameter of the concave portion. It means that there are 80% or more of large fillers.
　上記接合構造体において、金属部材の凹状部は、平面的に見て円形に形成され、その内周面に内側に突出する突出部を有していてもよい。 In the above bonded structure, the concave portion of the metal member may be formed in a circular shape when seen in a plan view, and may have a protruding portion protruding inward on the inner peripheral surface thereof.
　本発明の接合構造体によれば、熱衝撃に対する耐性が低下するのを抑制することができる。 According to the bonded structure of the present invention, it is possible to suppress a decrease in resistance to thermal shock.
本発明の第１実施形態による接合構造体を模式的に示した断面図である。It is sectional drawing which showed typically the joining structure body by 1st Embodiment of this invention. 接合構造体の製造方法を説明するための図であって、金属部材に穿孔部を形成する工程を示した図である。It is a figure for demonstrating the manufacturing method of a joining structure, Comprising: It is the figure which showed the process of forming a perforated part in a metal member. 接合構造体の製造方法を説明するための図であって、穿孔部を有する金属部材の表面に樹脂部材が配置された状態を示した図である。It is a figure for demonstrating the manufacturing method of a joining structure, Comprising: It is the figure which showed the state by which the resin member has been arrange | positioned on the surface of the metal member which has a perforation part. 本発明の第２実施形態による接合構造体を模式的に示した断面図である。It is sectional drawing which showed typically the joining structure body by 2nd Embodiment of this invention.
　以下、本発明の実施形態について図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　（第１実施形態）
　まず、図１を参照して、本発明の第１実施形態による接合構造体１００について説明する。 (First embodiment)
First, with reference to FIG. 1, the joining structure 100 by 1st Embodiment of this invention is demonstrated.
　接合構造体１００は、図１に示すように、金属部材１および樹脂部材２を備え、その金属部材１および樹脂部材２が接合されている。 1, the bonded structure 100 includes a metal member 1 and a resin member 2, and the metal member 1 and the resin member 2 are bonded to each other.
　金属部材１には、表面１１に複数の穿孔部１２が形成されている。穿孔部１２は、平面的に見て円形に形成されるとともに、その内周面が円筒状に形成されている。すなわち、穿孔部１２では、深さ方向（Ｚ方向）における開口径が同じになっている。この穿孔部１２は、たとえば、開口径が５０μｍ程度であり、深さが８５μｍ以上である。なお、穿孔部１２は、本発明の「凹状部」の一例である。 The metal member 1 has a plurality of perforated portions 12 formed on the surface 11 thereof. The perforated portion 12 is formed in a circular shape when seen in a plan view, and its inner peripheral surface is formed in a cylindrical shape. That is, in the perforated part 12, the opening diameter in the depth direction (Z direction) is the same. For example, the perforated part 12 has an opening diameter of about 50 μm and a depth of 85 μm or more. The perforated part 12 is an example of the “concave part” in the present invention.
　金属部材１の材料としては、鉄系金属、ステンレス系金属、銅系金属、アルミ系金属、マグネシウム系金属、および、それらの合金が挙げられる。また、金属成型体であってもよく、亜鉛ダイカスト、アルミダイカスト、粉末冶金などであってもよい。 The material of the metal member 1 includes iron metal, stainless steel metal, copper metal, aluminum metal, magnesium metal, and alloys thereof. Moreover, a metal molding may be sufficient and zinc die-casting, aluminum die-casting, powder metallurgy, etc. may be sufficient.
　樹脂部材２は、金属部材１の表面１１に設けられるとともに、穿孔部１２の内部に充填されている。これにより、金属部材１および樹脂部材２がアンカー効果により機械的に接合されている。この樹脂部材２は、熱可塑性樹脂または熱硬化性樹脂である。 The resin member 2 is provided on the surface 11 of the metal member 1 and filled in the perforated portion 12. Thereby, the metal member 1 and the resin member 2 are mechanically joined by the anchor effect. The resin member 2 is a thermoplastic resin or a thermosetting resin.
　上記熱可塑性樹脂の一例としては、ＰＶＣ（ポリ塩化ビニル）、ＰＳ（ポリスチレン）、ＡＳ（アクリロニトリル・スチレン）、ＡＢＳ（アクリロニトリル・ブタジエン・スチレン）、ＰＭＭＡ（ポリメチルメタクリレート）、ＰＥ（ポリエチレン）、ＰＰ（ポリプロピレン）、ＰＣ（ポリカーボネート）、ｍ－ＰＰＥ（変性ポリフェニレンエーテル）、ＰＡ６（ポリアミド６）、ＰＡ６６（ポリアミド６６）、ＰＯＭ（ポリアセタール）、ＰＥＴ（ポリエチレンテレフタレート）、ＰＢＴ（ポリブチレンテレフタレート）、ＰＳＦ（ポリサルホン）、ＰＡＲ（ポリアリレート）、ＰＥＩ（ポリエーテルイミド）、ＰＰＳ（ポリフェニレンサルファイド）、ＰＥＳ（ポリエーテルサルホン）、ＰＥＥＫ（ポリエーテルエーテルケトン）、ＰＡＩ（ポリアミドイミド）、ＬＣＰ（液晶ポリマー）、ＰＶＤＣ（ポリ塩化ビニリデン）、ＰＴＦＥ（ポリテトラフルオロエチレン）、ＰＣＴＦＥ（ポリクロロトリフルオロエチレン）、および、ＰＶＤＦ（ポリフッ化ビニリデン）が挙げられる。また、ＴＰＥ（熱可塑性エラストマ）であってもよく、ＴＰＥの一例としては、ＴＰＯ（オレフィン系）、ＴＰＳ（スチレン系）、ＴＰＥＥ（エステル系）、ＴＰＵ（ウレタン系）、ＴＰＡ（ナイロン系）、および、ＴＰＶＣ（塩化ビニル系）が挙げられる。 Examples of the thermoplastic resin include PVC (polyvinyl chloride), PS (polystyrene), AS (acrylonitrile styrene), ABS (acrylonitrile butadiene styrene), PMMA (polymethyl methacrylate), PE (polyethylene), PP (Polypropylene), PC (polycarbonate), m-PPE (modified polyphenylene ether), PA6 (polyamide 6), PA66 (polyamide 66), POM (polyacetal), PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PSF ( Polysulfone), PAR (polyarylate), PEI (polyetherimide), PPS (polyphenylene sulfide), PES (polyethersulfone), PEEK (polyetheretherketone), P I (polyamideimide), LCP (liquid crystal polymer), PVDC (polyvinylidene chloride), PTFE (polytetrafluoroethylene), PCTFE (polychlorotrifluoroethylene), and include PVDF (poly (vinylidene fluoride)) it is. TPE (thermoplastic elastomer) may also be used, and examples of TPE include TPO (olefin-based), TPS (styrene-based), TPEE (ester-based), TPU (urethane-based), TPA (nylon-based), And TPVC (vinyl chloride type) is mentioned.
　上記熱硬化性樹脂の一例としては、ＥＰ（エポキシ）、ＰＵＲ（ポリウレタン）、ＵＦ（ユリアホルムアルデヒド）、ＭＦ（メラミンホルムアルデヒド）、ＰＦ（フェノールホルムアルデヒド）、ＵＰ（不飽和ポリエステル）、および、ＳＩ（シリコーン）が挙げられる。また、ＦＲＰ（繊維強化プラスチック）であってもよい。 Examples of the thermosetting resin include EP (epoxy), PUR (polyurethane), UF (urea formaldehyde), MF (melamine formaldehyde), PF (phenol formaldehyde), UP (unsaturated polyester), and SI (silicone). ). Further, it may be FRP (fiber reinforced plastic).
　また、樹脂部材２には、樹脂部材２を補強する機能を有する充填剤（フィラー）２１が含まれている。この充填剤２１は、繊維状、板状または針状に形成された無機系充填剤である。すなわち、充填剤２１は、所定の方向に延びるように形成され、その形状に起因して線膨張係数に異方性を有する。なお、樹脂部材２には、充填剤２１の他に、その他の充填剤（たとえば、有機系充填剤や球状の無機系充填剤など）が含まれていてもよい。 In addition, the resin member 2 includes a filler (filler) 21 having a function of reinforcing the resin member 2. The filler 21 is an inorganic filler formed in a fiber shape, a plate shape, or a needle shape. That is, the filler 21 is formed so as to extend in a predetermined direction, and has an anisotropy in the linear expansion coefficient due to its shape. In addition to the filler 21, the resin member 2 may contain other fillers (for example, an organic filler or a spherical inorganic filler).
　繊維状の無機系充填剤の一例としては、ガラス繊維、炭素繊維、アラミド繊維、ビニロン繊維、アルミナ繊維および金属繊維などが挙げられる。板状の無機系充填剤の一例としては、タルク、マイカ、ガラスフレークおよび黒鉛などが挙げられる。針状の無機系充填剤の一例としては、ウォラストナイト、チタン酸カリウムおよびゾノトライトなどが挙げられる。 Examples of the fibrous inorganic filler include glass fiber, carbon fiber, aramid fiber, vinylon fiber, alumina fiber, and metal fiber. Examples of the plate-like inorganic filler include talc, mica, glass flakes, and graphite. Examples of acicular inorganic fillers include wollastonite, potassium titanate, and zonotlite.
　ここで、充填剤２１は、金属部材１の表面１１に対して水平方向（Ｘ方向）を向くように配置されている。すなわち、充填剤２１の長手方向が表面１１に沿うように配置されている。このため、穿孔部１２の内部に対する充填剤２１の侵入が抑制されるようになっている。なお、樹脂部材２に含まれる全ての充填剤２１が厳密に水平方向を向いていなくてもよい。つまり、第１実施形態における充填剤２１が表面１１に対して水平方向を向くとは、たとえば、樹脂部材２に含まれる全ての充填剤２１の中に、水平方向に対する傾斜が±４５度以内の充填剤２１が６０％以上あることをいう。 Here, the filler 21 is disposed so as to face the horizontal direction (X direction) with respect to the surface 11 of the metal member 1. That is, the filler 21 is arranged so that the longitudinal direction thereof is along the surface 11. For this reason, the penetration | invasion of the filler 21 with respect to the inside of the perforation part 12 is suppressed. Note that all the fillers 21 included in the resin member 2 do not have to be strictly oriented in the horizontal direction. That is, the filler 21 in the first embodiment is oriented in the horizontal direction with respect to the surface 11, for example, in all the fillers 21 included in the resin member 2, the inclination with respect to the horizontal direction is within ± 45 degrees. The filler 21 is 60% or more.
　また、充填剤２１は、長手方向の長さが穿孔部１２の開口径よりも大きくなっている。これによっても、穿孔部１２の内部に対する充填剤２１の侵入を抑制することが可能である。なお、長手方向の長さが穿孔部１２の開口径よりも小さい充填剤２１が含まれていてもよい。つまり、第１実施形態における充填剤２１の長手方向の長さが穿孔部１２の開口径よりも大きいとは、たとえば、樹脂部材２に含まれる全ての充填剤２１の中に、長手方向の長さが穿孔部１２の開口径よりも大きい充填剤２１が８０％以上あることをいう。 The length of the filler 21 in the longitudinal direction is larger than the opening diameter of the perforated part 12. Also by this, it is possible to suppress the penetration of the filler 21 into the inside of the perforated part 12. In addition, the filler 21 whose length in the longitudinal direction is smaller than the opening diameter of the perforated part 12 may be included. That is, the length in the longitudinal direction of the filler 21 in the first embodiment is larger than the opening diameter of the perforated part 12, for example, in all the fillers 21 included in the resin member 2. It means that there is 80% or more of the filler 21 whose diameter is larger than the opening diameter of the perforated part 12.
　そして、深さ方向における下半分の領域まで充填剤２１が侵入していない穿孔部１２の割合が５０％以上であることが好ましい。さらに好ましくは、充填剤２１が全く侵入していない穿孔部１２の割合が８０％以上であることである。 And it is preferable that the ratio of the perforated part 12 in which the filler 21 does not penetrate into the lower half region in the depth direction is 50% or more. More preferably, the ratio of the perforated part 12 in which the filler 21 does not penetrate at all is 80% or more.
　－接合構造体の製造方法－
　次に、図１～図３を参照して、第１実施形態による接合構造体１００の製造方法について説明する。 -Manufacturing method of bonded structure-
Next, with reference to FIGS. 1 to 3, a method for manufacturing the joint structure 100 according to the first embodiment will be described.
　まず、図２に示すように、金属部材１の表面１１に加工用のレーザＬ１を照射することにより、金属部材１の表面１１に穿孔部１２を形成する。加工用のレーザＬ１は、たとえばファイバレーザである。 First, as shown in FIG. 2, the surface 11 of the metal member 1 is irradiated with a processing laser L <b> 1 to form a perforated portion 12 on the surface 11 of the metal member 1. The processing laser L1 is, for example, a fiber laser.
　そして、インサート成形により、金属部材１の表面１１に、充填剤２１を含む樹脂部材２を形成する。具体的には、溶融された樹脂部材２が穿孔部１２に充填され、その後樹脂部材２が固化される。これにより、金属部材１と樹脂部材２とがアンカー効果によって機械的に接合される。ここで、インサート成形時に、溶融された樹脂部材２が金属部材１の表面１１に沿って流れるため、樹脂部材２が固化されたときに充填剤２１が水平方向（Ｘ方向）を向くようになる。 Then, the resin member 2 including the filler 21 is formed on the surface 11 of the metal member 1 by insert molding. Specifically, the melted resin member 2 is filled in the perforated portion 12, and then the resin member 2 is solidified. Thereby, the metal member 1 and the resin member 2 are mechanically joined by the anchor effect. Here, since the melted resin member 2 flows along the surface 11 of the metal member 1 at the time of insert molding, the filler 21 is directed in the horizontal direction (X direction) when the resin member 2 is solidified. .
　このようにして、図１に示す接合構造体１００が製造される。 In this way, the joined structure 100 shown in FIG. 1 is manufactured.
　なお、金属部材１に対する樹脂部材２の接合はインサート成形以外の方法で行うようにしてもよい。たとえば、熱プレス、レーザ、超音波または電磁誘導によって樹脂部材２を金属部材１に接合するようにしてもよい。 In addition, you may make it join the resin member 2 with respect to the metal member 1 by methods other than insert molding. For example, the resin member 2 may be bonded to the metal member 1 by hot pressing, laser, ultrasonic waves, or electromagnetic induction.
　これらの場合には、図３に示すように、穿孔部１２が形成された金属部材１の表面１１に樹脂部材２が配置される。このとき、樹脂部材２に含まれる充填剤２１は予め水平方向を向くように配置されている。そして、樹脂部材２が溶融されることにより、その溶融された樹脂部材２が穿孔部１２に充填される。その後樹脂部材２が固化される。これにより、金属部材１と樹脂部材２とがアンカー効果によって機械的に接合される。なお、充填剤２１は、樹脂部材２が溶融されて固化した後も、水平方向を向いた状態でほぼ維持される。 In these cases, as shown in FIG. 3, the resin member 2 is arranged on the surface 11 of the metal member 1 in which the perforated portion 12 is formed. At this time, the filler 21 contained in the resin member 2 is arranged in advance so as to face the horizontal direction. Then, by melting the resin member 2, the melted resin member 2 is filled in the perforated portion 12. Thereafter, the resin member 2 is solidified. Thereby, the metal member 1 and the resin member 2 are mechanically joined by the anchor effect. In addition, the filler 21 is substantially maintained in the state of facing the horizontal direction even after the resin member 2 is melted and solidified.
　－効果－
　第１実施形態では、上記のように、穿孔部１２の内部に対する充填剤２１の侵入を抑制するように構成することによって、形状に起因して線膨張係数に異方性を有する充填剤２１が穿孔部１２内の深い領域（たとえば、下半分の領域）に配置されにくくすることができる。すなわち、穿孔部１２の内部の深い領域を樹脂部材２で占めることができる。これにより、金属部材１および樹脂部材２の接合界面に応力が集中するのを抑制することができるので、熱衝撃に対する耐性が低下するのを抑制することができる。 -effect-
In the first embodiment, as described above, the filler 21 having anisotropy in the linear expansion coefficient due to the shape is configured by suppressing the penetration of the filler 21 into the perforated part 12. It can be made difficult to arrange in a deep region (for example, a lower half region) in the perforated part 12. That is, the resin member 2 can occupy a deep region inside the perforated part 12. Thereby, since it can suppress that stress concentrates on the joining interface of the metal member 1 and the resin member 2, it can suppress that the tolerance with respect to a thermal shock falls.
　また、第１実施形態では、金属部材１の表面１１に対して水平方向（Ｘ方向）を向くように充填剤２１を配置することによって、穿孔部１２の内部に充填剤２１を侵入しにくくすることができる。 In the first embodiment, by placing the filler 21 so as to face the horizontal direction (X direction) with respect to the surface 11 of the metal member 1, the filler 21 is less likely to enter the perforated part 12. be able to.
　また、第１実施形態では、充填剤２１の長手方向の長さを穿孔部１２の開口径よりも大きくすることによって、穿孔部１２の内部に充填剤２１を侵入しにくくすることができる。 Further, in the first embodiment, by making the length of the filler 21 in the longitudinal direction larger than the opening diameter of the perforated part 12, it is possible to make it difficult for the filler 21 to enter the perforated part 12.
　また、第１実施形態では、レーザＬ１により穿孔部１２を形成することによって、ケミカルエッチングで凹凸を形成する場合に比べて、穿孔部１２を精度よく形成することができるとともに、金属部材１の表面１１が腐食するのを抑制することができる。 Moreover, in 1st Embodiment, while forming the perforation part 12 with the laser L1, compared with the case where an unevenness | corrugation is formed by chemical etching, while being able to form the perforation part 12 with precision, the surface of the metal member 1 is demonstrated. It can suppress that 11 corrodes.
　（第２実施形態）
　次に、図４を参照して、本発明の第２実施形態による接合構造体２００について説明する。 (Second Embodiment)
Next, with reference to FIG. 4, the joining structure 200 by 2nd Embodiment of this invention is demonstrated.
　接合構造体２００は、図４に示すように、金属部材１ａおよび樹脂部材２を備え、その金属部材１ａおよび樹脂部材２が接合されている。 As shown in FIG. 4, the joining structure 200 includes a metal member 1 a and a resin member 2, and the metal member 1 a and the resin member 2 are joined.
　金属部材１ａには、表面１１に複数の穿孔部１２ａが形成されている。穿孔部１２ａは、平面的に見て円形に形成されるとともに、その内周面に内側に突出する突出部１３ａを有する。この穿孔部１２ａは、たとえば、表面１１の開口径が５０μｍ程度であり、深さが８５μｍ以上である。突出部１３ａは、周方向における全長にわたって形成されており、環状に形成されている。なお、穿孔部１２ａは、本発明の「凹状部」の一例である。 A plurality of perforations 12a are formed on the surface 11 of the metal member 1a. The perforated portion 12a is formed in a circular shape when seen in a plan view, and has a protruding portion 13a that protrudes inwardly on the inner peripheral surface thereof. The perforated part 12a has, for example, an opening diameter of the surface 11 of about 50 μm and a depth of 85 μm or more. The protrusion 13a is formed over the entire length in the circumferential direction, and is formed in an annular shape. The perforated portion 12a is an example of the “concave portion” in the present invention.
　具体的には、穿孔部１２ａは、深さ方向において表面１１側から底部に向けて開口径が小さくなる第１縮径部と、深さ方向において表面１１側から底部に向けて開口径が大きくなる拡径部と、深さ方向において表面１１側から底部に向けて開口径が小さくなる第２縮径部とが連なるように形成されている。第１縮径部は、直線状に縮径するように形成され、拡径部は、曲線状に拡径するように形成され、第２縮径部は、曲線状に縮径するように形成されている。すなわち、第１縮径部と拡径部とにより突出部１３ａが構成されている。 Specifically, the perforated portion 12a has a first reduced diameter portion whose opening diameter decreases from the surface 11 side toward the bottom in the depth direction, and a large opening diameter from the surface 11 side toward the bottom in the depth direction. And the second reduced diameter portion having a smaller opening diameter from the surface 11 side toward the bottom in the depth direction. The first reduced diameter portion is formed so as to be linearly reduced, the enlarged diameter portion is formed so as to be enlarged in a curved shape, and the second reduced diameter portion is formed so as to be reduced in a curved shape. Has been. That is, the protruding portion 13a is constituted by the first reduced diameter portion and the enlarged diameter portion.
　この穿孔部１２ａは、たとえば加工用のレーザによって形成されている。なお、レーザの種類としては、パルス発振が可能なものが好ましく、ファイバレーザ、ＹＡＧレーザ、ＹＶＯ4レーザ、半導体レーザ、炭酸ガスレーザ、エキシマレーザが選択でき、波長を考慮すると、ファイバレーザ、ＹＡＧレーザ、ＹＡＧレーザの第２高調波、ＹＶＯ4レーザ、半導体レーザが好ましい。 The perforated portion 12a is formed by, for example, a processing laser. As the type of laser, a laser capable of pulse oscillation is preferable, and a fiber laser, a YAG laser, a YVO 4 laser, a semiconductor laser, a carbon dioxide gas laser, and an excimer laser can be selected. A second harmonic of a YAG laser, a YVO 4 laser, or a semiconductor laser is preferable.
　このような穿孔部１２ａは、１パルスが複数のサブパルスで構成されるレーザによって形成される。このレーザでは、エネルギを深さ方向に集中させやすいので、穿孔部１２ａを形成するのに好適である。このようなレーザを照射可能な加工装置の一例としては、オムロン製のファイバレーザマーカＭＸ－Ｚ２０００またはＭＸ－Ｚ２０５０を挙げることができる。 Such a perforated part 12a is formed by a laser in which one pulse is composed of a plurality of sub-pulses. This laser is suitable for forming the perforated portion 12a because energy can be easily concentrated in the depth direction. As an example of a processing apparatus capable of irradiating such a laser, there can be mentioned fiber laser marker MX-Z2000 or MX-Z2050 manufactured by OMRON.
　上記ファイバレーザマーカによる加工条件としては、サブパルスの１周期が１５ｎｓ以下であることが好ましい。これは、サブパルスの１周期が１５ｎｓを超えると、熱伝導によりエネルギが拡散しやすくなり、穿孔部１２ａを形成しにくくなるためである。なお、サブパルスの１周期は、サブパルスの１回分の照射時間と、そのサブパルスの照射が終了されてから次回のサブパルスの照射が開始されるまでの間隔との合計時間である。 As processing conditions by the fiber laser marker, it is preferable that one period of the sub-pulse is 15 ns or less. This is because when one period of the sub-pulse exceeds 15 ns, energy is easily diffused due to heat conduction, and it becomes difficult to form the perforated portion 12a. Note that one cycle of the subpulse is a total time of the irradiation time for one subpulse and the interval from the end of the irradiation of the subpulse to the start of the irradiation of the next subpulse.
　また、１パルスのサブパルス数は、２以上５０以下であることが好ましい。これは、サブパルス数が５０を超えると、サブパルスの単位あたりの出力が小さくなり、穿孔部１２ａを形成しにくくなるためである。 Also, the number of subpulses in one pulse is preferably 2 or more and 50 or less. This is because when the number of sub-pulses exceeds 50, the output per unit of sub-pulses becomes small and it becomes difficult to form the perforated part 12a.
　第２実施形態では、上記のように、穿孔部１２ａの内部に突出部１３ａを形成することによって、穿孔部１２ａ内の深い領域に充填剤２１をより侵入しにくくすることができる。 In the second embodiment, as described above, by forming the protruding portion 13a inside the perforated portion 12a, it is possible to make the filler 21 less likely to penetrate into a deep region in the perforated portion 12a.
　なお、第２実施形態のその他の構成および効果は、第１実施形態と同様である。 The other configurations and effects of the second embodiment are the same as those of the first embodiment.
　（他の実施形態）
　なお、今回開示した実施形態は、すべての点で例示であって、限定的な解釈の根拠となるものではない。したがって、本発明の技術的範囲は、上記した実施形態のみによって解釈されるものではなく、特許請求の範囲の記載に基づいて画定される。また、本発明の技術的範囲には、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。 (Other embodiments)
In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become a basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Further, the technical scope of the present invention includes all modifications within the meaning and scope equivalent to the scope of the claims.
　たとえば、第１実施形態では、穿孔部１２が円筒状である例を示したが、これに限らず、穿孔部がすり鉢状に形成されていてもよい。すなわち、深くなるにつれて開口径が小さくなるように穿孔部が形成されていてもよい。 For example, in the first embodiment, an example in which the perforated part 12 is cylindrical has been described, but the present invention is not limited thereto, and the perforated part may be formed in a mortar shape. That is, the perforated part may be formed so that the opening diameter becomes smaller as it becomes deeper.
　また、第１実施形態では、凹状部の一例として平面的に見て円形の穿孔部１２を示したが、これに限らず、凹状部として溝部が形成されていてもよい。 Further, in the first embodiment, the circular perforated portion 12 is shown as a plan view as an example of the concave portion, but the present invention is not limited to this, and a groove portion may be formed as the concave portion.
　本発明は、充填剤を含む樹脂部材と金属部材とが接合された接合構造体に利用可能である。 The present invention can be used for a bonded structure in which a resin member containing a filler and a metal member are bonded.
　１　　　金属部材
　２　　　樹脂部材
　１１　　表面
　１２　　穿孔部（凹状部）
　２１　　充填剤
　１００　接合構造体
　１ａ　　金属部材
　１２ａ　穿孔部（凹状部）
　１３ａ　突出部
　２００　接合構造体 DESCRIPTION OF SYMBOLS 1 Metal member 2 Resin member 11 Surface 12 Perforated part (concave part)
21 Filler 100 Joining structure 1a Metal member 12a Perforated part (concave part)
13a Protrusion 200 Bonding structure

Claims (4)

  1. 　表面に凹状部が形成された金属部材と、
    　充填剤を含む樹脂部材とを備える接合構造体であって、
    　前記凹状部に前記樹脂部材が充填されることにより、前記金属部材および前記樹脂部材が接合されており、
    　前記凹状部の内部に対する前記充填剤の侵入が抑制されるように構成されていることを特徴とする接合構造体。     A metal member having a concave portion formed on the surface;
    A bonded structure comprising a resin member containing a filler,
    The metal member and the resin member are joined by filling the concave portion with the resin member,
    A joining structure configured to suppress the penetration of the filler into the concave portion.
  2. 　請求項１に記載の接合構造体において、
    　前記充填剤は、繊維状、板状または針状に形成されており、前記金属部材の表面に対して水平方向を向くように配置されていることを特徴とする接合構造体。     The joined structure according to claim 1,
    The said filler is formed in fiber shape, plate shape, or needle shape, and is arrange | positioned so that it may face a horizontal direction with respect to the surface of the said metal member, The joining structure characterized by the above-mentioned.
  3. 　請求項１または２に記載の接合構造体において、
    　前記金属部材の凹状部は、平面的に見て円形に形成され、
    　前記充填剤は、繊維状、板状または針状に形成されており、長手方向の長さが前記凹状部の開口径よりも大きいことを特徴とする接合構造体。     In the junction structure according to claim 1 or 2,
    The concave portion of the metal member is formed in a circular shape when seen in a plan view,
    The said filler is formed in fiber shape, plate shape, or needle shape, and the length of a longitudinal direction is larger than the opening diameter of the said recessed part, The joining structure characterized by the above-mentioned.
  4. 　請求項１～３のいずれか１つに記載の接合構造体において、
    　前記金属部材の凹状部は、平面的に見て円形に形成され、その内周面に内側に突出する突出部を有することを特徴とする接合構造体。     In the bonded structure according to any one of claims 1 to 3,
    The concave structure of the metal member is formed in a circular shape when seen in a plan view, and has a protruding portion that protrudes inward on an inner peripheral surface thereof.
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