WO2020067022A1 - 金属材の接合方法及び金属接合体 - Google Patents

金属材の接合方法及び金属接合体 Download PDF

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Publication number
WO2020067022A1
WO2020067022A1 PCT/JP2019/037295 JP2019037295W WO2020067022A1 WO 2020067022 A1 WO2020067022 A1 WO 2020067022A1 JP 2019037295 W JP2019037295 W JP 2019037295W WO 2020067022 A1 WO2020067022 A1 WO 2020067022A1
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Prior art keywords
metal material
metal
joining
resin
joined
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PCT/JP2019/037295
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English (en)
French (fr)
Japanese (ja)
Inventor
公則 和鹿
中村　浩
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株式会社ヒロテック
株式会社シャルマン
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Application filed by 株式会社ヒロテック, 株式会社シャルマン filed Critical 株式会社ヒロテック
Priority to CN201980062178.XA priority Critical patent/CN112739538A/zh
Priority to JP2020549222A priority patent/JP7264406B2/ja
Publication of WO2020067022A1 publication Critical patent/WO2020067022A1/ja

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    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method

Definitions

  • the present invention relates to a method for joining metal materials and a metal joined body.
  • the heat-affected zone is formed in addition to the melt-solidified structure at the joint, and the mechanical properties of the metal base material (material to be joined) cannot be fully utilized as the joint structure. Furthermore, when joining dissimilar metal materials, a brittle intermetallic compound layer is formed at the joining interface, and it is difficult to ensure the strength and reliability of the joint.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2009-299138
  • a dissimilar joined body of a steel material and an aluminum alloy material in which the steel material to be joined has a specific composition
  • the aluminum alloy material to be joined has a specific composition Al-Mg-Si-based aluminum alloy of the above
  • the Li and Mn are contained in a specific amount at the bonding interface on the aluminum alloy material side of the dissimilar material joined body, and the Fe interface is regulated.
  • both the outer oxide layer containing Mn and Si on the surface of the steel material and the inner oxide layer containing Mn and Si immediately below the material surface of the steel material include:
  • the joint surface of the aluminum alloy material with the steel material has a surface on the steel material surface.
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2015-139789 discloses a method of joining a metal member and a joining member having a melting point lower than the melting point of the metal member by friction stir welding.
  • a joining member is superimposed on a metal member having a hole having a shape smaller than the diameter of the hole on the opposite side, and (ii) a joining tool is pressed against the joining member above the hole while rotating, and the joining member is pressed into the hole.
  • a friction stir welding method for dissimilar members characterized in that a joint is formed by welding.
  • a hole having a shape in which a hole diameter of a joining surface is smaller than a hole diameter of an opposite side is formed in one metal member, and the inside of the hole is joined.
  • two members having different characteristics for example, an iron-based member such as a plated steel plate or a titanium (alloy) member, and aluminum, magnesium or an alloy thereof, Alternatively, a member made of resin or the like can be firmly joined by friction stir welding.
  • the thickness of the intermetallic compound at the joint interface is smaller than that after fusion welding, it is difficult to completely suppress the formation of the intermetallic compound.
  • different metal materials are closely adhered to the dissimilar metal joint formed by friction stir welding, and it is extremely difficult to suppress electrolytic corrosion.
  • an object of the present invention is a simple method for firmly joining metal materials of various combinations of the same type and different types.
  • An object of the present invention is to provide a joining method capable of suppressing electrolytic corrosion. Further, the present invention also provides a metal joined body having a joint having a joining strength high enough to allow a joint to extend in a metal part in a tensile test, and in which electrolytic corrosion of the joint is extremely efficiently suppressed. The purpose is.
  • the present inventor has conducted intensive studies on a method for joining metal materials in order to achieve the above object, and as a result, has found that it is effective to firmly join metal materials via a resin layer, and the like. Reached.
  • the present invention A first step of bringing one metal material and the other metal material into contact with each other via a resin layer to form a bonded interface; A surface of the one metal material and / or the other metal material is irradiated with a laser to join the resin layer and the one metal material at the interface to be joined, and to bond the resin layer and the other metal material. Joining, and a second step of forming a joint, And a joining method for a metal material.
  • the method for joining metal materials of the present invention does not perform joining in a state where one metal material and the other metal material are directly contacted, but indirectly joins by forming a joining interface via a resin layer. Is to achieve. More specifically, the one metal material and the other metal material are joined by firmly joining the resin layer and the one metal material and also firmly joining the resin layer and the other metal material. Since one metal material does not directly contact the other metal material, electric corrosion can be extremely effectively suppressed.
  • the resin layer and the metal material are joined by a rise in the temperature of the interface between the resin layer and the metal material due to laser irradiation on the surface of the metal material.
  • the resin layer may be formed in advance on the surface of one metal material and / or the other metal material, or may be sandwiched between one metal material and the other metal material during joining.
  • one metal material is brought into contact with the other metal material via a resin layer to form an interface to be joined, and one metal material and / or Or a second step of raising the temperature of the surface of the other metal material, joining the resin layer and the one metal material at the interface to be joined, joining the resin layer and the other metal material, and forming a joint.
  • one metal material is brought into contact with one surface of the resin layer and the other metal material is brought into contact with the other surface, whereby one metal material / An interface to be joined in a three-layer state of the resin layer / the other metal material can be formed.
  • the resin layer for example, a sheet-like or film-like resin material, a liquid resin, or the like can be used.
  • the surface of the one metal material and / or the other metal material is irradiated with a laser to raise the temperature of the interface to be bonded, so that the one metal material is heated. And / or a heating region is formed in a part of the other metal material, and the resin layer overlapping with the heating region is heated to thereby firmly join the resin layer to the one metal material and the resin layer to the other metal material. Then, one metal material and the other metal material can be joined.
  • the temperature of the resin layer surface at the interface to be joined is preferably equal to or higher than the melting point, but the temperature can be lowered by performing an appropriate surface treatment on the metal material.
  • the temperature of the resin layer surface at the interface to be joined is preferably equal to or higher than the glass transition temperature.
  • the resin layer is a resin film.
  • the thickness of the resin layer present at the interface to be joined is preferably uniform, but can be easily achieved by using a resin film having a uniform thickness.
  • the resin film is easy to store and handle, and can be easily processed according to the shape and size of the region to be joined.
  • the thickness of the resin layer is 15 to 500 ⁇ m.
  • the more preferable thickness of the resin layer is 15 to 100 ⁇ m, and by setting the film thickness within this range, the load input to the resin layer at the bonding interface can be made three-dimensional to two-dimensional. As a result, a metal joined body having excellent mechanical properties can be obtained.
  • the resin layer may be made of a polyamide resin, a polyimide resin, a polycarbonate resin, a polyphenylene sulfide resin, a fluorine resin, a polyethylene terephthalate resin, a maleic acid-modified polypropylene resin and a polyether ether ketone resin. It is preferable that any one of them is used. By using these resins, a strong metal / resin bonding region can be formed.
  • the composition of the one metal material and the composition of the other metal material are different. Since the joining method of the metal material in the present invention is a joining of one metal material and the other metal material via the resin layer, a brittle intermetallic compound is generated at the joining interface even if both compositions are different. And a healthy joint can be obtained.
  • the one metal material and the other metal material conventionally known various metal materials can be used as long as the effects of the present invention are not impaired.
  • the joining part is pressurized immediately after the second step and / or immediately after the second step.
  • the joint obtained by the method for joining metal materials of the present invention has a sufficiently high strength
  • the addition of a pressing step can reduce the variation in quality.
  • the pressurization for example, air bubbles introduced into the resin layer of the joint at the time of temperature rise by laser irradiation can be moved to the outside, and a more reliable joint can be obtained.
  • the resin layer softened by the pressure spreads beyond the range of the heat-affected zone of the one metal material and the other metal material the bonding interface between the one metal material and the other metal material and the resin material is reduced. Can be expanded.
  • a new surface is formed on the one metal material and / or the other metal material by electrolytic treatment using a reducing carboxylic acid, and the new surface is coated with the carboxylic acid to obtain a carboxylic acid-coated metal material.
  • a treatment step is performed.
  • a stronger bond is formed by chemically bonding a nascent surface of one metal material and / or the other metal material to a carboxyl group derived from a resin material generated by thermal decomposition. can do.
  • the “new surface” means a state where the outermost surface of the metal material is removed and activated, for example, a state where the oxide film is removed and the metal material is exposed, or the outermost surface of the oxide film. Includes the state after the removal and the cleaning.
  • the number of bonding sites is reduced as compared with the case where reactive functional groups are bonded to each other.
  • the resin layer and the one metal material and the resin layer and the other metal material can be more firmly joined, and the one metal material and the other metal material can be joined.
  • a surface of the one metal material and / or the other metal material to be the interface to be joined is irradiated with a laser, and the surface is coated with oxide particles having a particle size of 1 to 100 nm.
  • the carboxylate is not arranged on the metal surface even if the electrolytic treatment is performed with the carboxylic acid, and the effect of the treatment cannot be expected much.
  • oxide particles having a particle diameter of 1 to 100 nm on the metal surface by laser irradiation the bonding strength can be secured by an anchor effect or the like due to a physical structure.
  • the metal joined body of the present invention can be manufactured by the method of joining metallic materials according to the present invention.
  • One metallic material and the other metallic material are indirectly joined via a resin layer, and are joined by an adhesive or rivet fastening. Not something.
  • the bonding interface obtained by the method for bonding metal materials of the present invention has a high strength, and has a high bonding strength such that one metal material and / or the other metal material is elongated in a tensile test.
  • the one metal material or the other metal material be broken in the tensile test. Since the metal bonded body of the present invention has extremely high bonding interface strength, depending on the combination of one metal material and the other metal material and the resin layer, one metal material or the other metal material may break after elongation. Very high bonding strength.
  • the one metal material and / or the other metal material is a steel material or a titanium material.
  • the steel material includes various carbon steels and stainless steels
  • the titanium material includes pure titanium and various titanium alloys.
  • the metal bonded body of the present invention even if the one metal material and / or the other metal material is a steel material or a titanium material, the metal bonded body has a strong bonding interface such that these metals elongate in a tensile test. In some cases, the reliability of the joint is so high that the steel breaks.
  • the metal material joining method and the metal joined body of the present invention it is a simple method for firmly joining various kinds of metal materials of the same type and different types. Can be provided. Further, it is possible to provide a metal joined body having a joint having a joint strength high enough to extend the joint at the metal part in the tensile test, and suppressing the electrolytic corrosion of the joint extremely efficiently.
  • FIG. 4 is a process chart of a method of joining metal materials in the present embodiment. It is a schematic diagram which shows a mode of a 1st process and a 2nd process.
  • FIG. 3 is a schematic cross-sectional view of a metal joined body 8 in the present embodiment. It is a schematic diagram which shows the state which laminated
  • 3 is an overview photograph of a metal joined body obtained in Example 1 after a tensile test.
  • 5 is an SEM photograph (low magnification) of the surface of a SUS304 plate subjected to a surface treatment in Example 2.
  • 5 is an SEM photograph (high magnification) of the surface of a SUS304 plate subjected to a surface treatment in Example 2.
  • 4 is an overview photograph of a metal joined body obtained in Example 2 after a tensile test.
  • FIG. 1 is a process diagram of a method of joining metal material in the present embodiment
  • FIG. 2 shows first and second steps used in the method of joining metal material in this embodiment. It is a schematic diagram which shows a situation.
  • the method of joining metal materials according to the present embodiment includes a joining interface between a first metal material 2 (one metal material) and a second metal material 4 (the other metal material) via a resin material 6 (resin layer).
  • each step will be described in detail by taking a case where a pretreatment is performed on a metal material and laser irradiation is performed from one metal material as a representative example.
  • a surface treatment step is preferably performed.
  • a new surface is formed on the first metal material 2 and the second metal material 4 by electrolytic treatment using a reducing carboxylic acid, and the new surface is coated with the carboxylic acid to form a carboxylic acid-coated metal material.
  • other acids can be used. For example, an amino acid or the like may be used.
  • a new surface is formed on the first metal material 2 and the second metal material 4 by electrolytic treatment using carboxylic acid, and the new surface that directly contributes to bonding is covered and protected with carboxylic acid. It is possible to obtain a carboxylic acid-coated metal material that can utilize a newly formed surface.
  • the reducing carboxylic acid used in the surface treatment step is preferably oxalic acid or formic acid.
  • oxalic acid or formic acid By subjecting the metal material to electrolytic treatment using oxalic acid or formic acid, formation of a new surface, coating of the new surface, and detachment can smoothly proceed, and an extremely strong joint can be formed smoothly.
  • the carboxylic acids may be used alone or as a mixture.
  • oxalic acid and formic acid it is preferable that oxalic acid and formic acid be 1: 2.
  • iron oxalate When a mixed electrolytic solution of oxalic acid and formic acid is used for steel, iron oxalate has low solubility (0.026% by mass in hot water), and is deposited on the surface of steel to prevent the steel from dissolving. Act as On the other hand, since the surface of the steel material dissolves as iron formate, it is possible to form a good new surface while suppressing excessive dissolution of the surface. Further, a mixed solution containing a carboxylic acid may be used. In addition to oxalic acid and formic acid, for example, phosphoric acid and diammonium hydrogen citrate can be used.
  • the method of subjecting aluminum to electrolytic treatment using oxalic acid or the like is generally known as alumite treatment (anodizing treatment).
  • the purpose of the alumite treatment (anodizing treatment) is to form an oxide film on the surface of the aluminum material, whereas the purpose of the surface treatment step is to form a new surface and protect the new surface, and the electrolytic treatment conditions differ greatly.
  • electrolytic treatment is performed at an oxalic acid concentration of 2% to 3% for 20 minutes to 30 minutes, whereas when oxalic acid is used in the surface treatment step, 10% oxalic acid is used. It is preferable to perform the treatment for a shorter time at an acid concentration.
  • the first metal material 2 and the second metal material 4 have different compositions.
  • various conventionally known metal materials can be used as long as the effects of the present invention are not impaired.
  • various steel materials, galvanized steel materials, aluminum alloys, magnesium alloys Etc. can be used.
  • the joining method of the metal material in the present embodiment is an indirect joining of the first metal material 2 and the second metal material 4 via the resin material 6, even if both compositions are different, the joining interface is fragile. A sound joint can be obtained without generating an intermetallic compound.
  • the metal surface By coating the metal surface with oxide particles having a particle size of 1 to 100 nm, a minute and complicated three-dimensional structure is formed, and the bonding strength between the structure and the resin material 6 is improved by a physical anchor effect or the like. Can be done.
  • the type of laser and irradiation conditions are not particularly limited, and various conventionally known lasers can be used.
  • the laser output, the focus diameter, the scanning speed, the scanning pattern, and the like may be appropriately adjusted according to the type of laser or metal material used.
  • Oxygen in the atmosphere may be used as oxygen necessary for forming oxide particles, or may be mixed in the shielding gas at an arbitrary ratio.
  • the first step (S01) is a step for bringing the first metal material 2 and the second metal material 4 into contact with each other via the resin material 6 to form an interface to be joined.
  • the resin material 6 and the first metal material 2, and the resin material 6 and the second metal material 4 are brought into a general superimposed state by abutting flat surfaces, and more specifically, one of the resin materials 6.
  • the first metal material 2 is brought into contact with the surface and the second metal material 4 is brought into contact with the other surface, so that the first metal material 2 / the resin material 6 / the second metal material 4 have three layers. Configure the bonding interface. Therefore, direct contact between the first metal member 2 and the second metal member 4 is not performed.
  • the resin material 6 various conventionally known resin materials can be used as long as the effects of the present invention are not impaired.
  • polyamide resin (PA) polyimide resin (PI), polycarbonate resin (PC), polyphenylene
  • PPS sulfide resin
  • PTFE fluororesin
  • PET polyethylene terephthalate
  • PP maleic acid-modified polypropylene resin
  • PEEK polyetheretherketone resin
  • the resin material 6 is a resin film and has a thickness of 15 to 500 ⁇ m.
  • the thickness of the resin layer at the interface to be joined can be made uniform, storage and handling are facilitated, and furthermore, processing to match the shape and size of the region to be joined can be easily performed. .
  • Second step (S02: joining step) The second step (S02) is to decompose the resin material 6 by raising the temperature of the interface to be joined formed in the first step (S01) to a temperature equal to or higher than the glass transition temperature of the resin material 6 by laser irradiation. And by removing the carboxylic acid of the first metal material 2 and the second metal material 4 to expose a new surface on the surface of the carboxylic acid-coated metal material, and further cooling the interface to be joined to below the glass transition temperature. This is a step for bonding the carboxyl group of the resin material 6 and the new surfaces of the first metal material 2 and the second metal material 4 to form a joint.
  • the resin material 6 softened by the laser irradiation penetrates into the surface of the metal material having a fine and complicated structure, and a strong bonding is achieved.
  • a case where a carboxylic acid-coated metal material having a more complicated phenomenon is joined will be mainly described.
  • the laser used for raising the temperature is not particularly limited as long as the effect of the present invention is not impaired, and various conventionally known lasers can be used. More specifically, a semiconductor laser, a CO 2 laser, a fiber laser, a YAG laser, or the like can be used as long as the temperature of the interface to be joined can be raised to the glass transition temperature of the resin material 6 or higher. It is preferable that the laser is irradiated from one or both surfaces of the first metal material 2 and the second metal material 4. Irradiation from both surfaces is particularly advantageous when joining thick metal materials. In this embodiment, an example in which the first metal 2 is irradiated with a laser will be described as a representative example.
  • the resin material 6 is decomposed by the rise in temperature of the interface to be joined, and a carboxyl group derived from the resin material 6 is generated.
  • the carboxylic acid covering (protecting) the new surface is removed, and the active new surface is exposed.
  • the temperature rise at the interface to be joined is small, the above-described exposure of the new surface and the generation of carboxyl groups become insufficient, and the strength of the interface at the joint cannot be sufficiently increased. If the amount is excessive, the resin material 6 is peeled off from the first metal material 2 and the second metal material 4, resulting in poor formation of the bonding interface. Therefore, it is preferable to select appropriate heating conditions by controlling process parameters such as laser output, scanning speed, and focal length used for laser irradiation.
  • the interface to be joined is cooled to a temperature lower than the glass transition temperature, and a carboxyl group is chemically bonded to the new surface to form a joint. More specifically, by cooling the interface to be joined to a temperature lower than the glass transition temperature, a new surface formed on the outermost surfaces of the first metal material 2 and the second metal material 4, a carboxyl group derived from the resin material 6, Are chemically bonded. As a result, extremely strong direct bonding of the metal resin is achieved at both the resin material 6 / first metal material 2 interface and the resin material 6 / second metal material 4 interface, and the first metal material 2 and the second metal material 4 are joined together. Can be formed indirectly.
  • the bonding method of the metal material according to the present embodiment greatly increases the number of bonding sites between the metal resins, thereby reducing the strength of the bonding portion. It can be dramatically increased.
  • the joint be pressed during and / or immediately after the formation of the joint in the second step (S02).
  • a pressure may be applied from both sides of the first metal material 2 and the second metal material 4 using a substantially transparent pressing member or the like that can transmit laser.
  • pressure may be simply applied from both sides of the first metal material 2 and the second metal material 4. Note that even when the oxidation treatment by laser irradiation is used as the preliminary treatment, the effect of the pressurization is the same.
  • the joint obtained by the method for joining metal materials in the present embodiment has a sufficiently high strength, but the addition of the pressing step can reduce the variation in quality.
  • the pressurization for example, when the temperature of the interface to be joined is raised by laser irradiation, bubbles introduced into the resin material 6 can be moved to the outside, and a more reliable joint can be obtained. Furthermore, since the resin material 6 softened by the pressurization spreads beyond the range of the heat affected zone of the first metal material 2 and the second metal material 4, the resin material 6, the first metal material 2 and the second metal material The joining interface with the material 4 can be enlarged.
  • the molten resin material 6 spreads over the interface to be joined by pressurization, and the joining is achieved even at a portion lower than the melting temperature.
  • the pressure is preferably from 1.40 to 1.85 MPa, more preferably from 1.70 to 1.85 MPa. By setting the pressure to 0.25 MPa or more, it is effective in reducing (moving) bubbles, and by setting the pressure to 1.85 MPa or less, it is possible to suppress the resin material 6 at the joint from becoming too thin.
  • FIG. 3 shows a schematic sectional view of the metal bonded body 8 in the present embodiment.
  • the metal joined body 8 is a lap joining member of the first metal material 12 (one metal material) and the second metal material 14 (the other metal material).
  • the resin material 16 (resin layer) exists at the joining interface of the resin material, the resin material 16 and the first metal material 12 are directly joined, and the resin material 16 and the second metal material 14 are directly joined.
  • the first metal material 12 and / or the second metal material 14 elongate.
  • the resin material 16 and the first metal material 12 are directly connected, and the resin material 16 and the second metal material 14 are directly connected, so that the first metal material 12 and the second metal material 14 are indirectly connected. They are connected, and no adhesive or rivets are used at the joints.
  • the metal joined body 8 can be suitably manufactured by the above-described method for joining metal materials in the present embodiment.
  • the strength of the joining interface is not sufficient, and the metal material does not elongate in a tensile test of the joint.
  • the strength of the bonding interface at the bonding portion is high, and the bonding strength is high enough to extend the first metal material 12 and / or the second metal material 14 in the tensile test.
  • various metal materials can be used without impairing the effects of the present invention.
  • various steel materials including stainless steel and carbon steel, pure titanium , A titanium alloy, a shape memory alloy such as a nickel-titanium alloy, a galvanized steel material, an aluminum alloy, a magnesium alloy, or the like.
  • Various conventionally known resin materials can be used as the resin material 16 as long as the effects of the present invention are not impaired.
  • PPS polysulfide resin
  • PTFE fluororesin
  • PET polyethylene terephthalate
  • PP maleic acid-modified polypropylene resin
  • PEEK polyetheretherketone resin
  • the metal joined body 8 it is preferable that the first metal material 12 and / or the second metal material 14 be broken in the tensile test of the joint. Since the strength of the bonding interface is extremely high, the metal bonded body 8 has extremely high bonding strength such that the first metal material 12 and / or the second metal material 14 breaks after being elongated.
  • the first metal material 12 and / or the second metal material 14 is a steel material or a titanium material.
  • the first metal material 12 and / or the second metal material 14 are a steel material or a titanium material.
  • an inexpensive and strong metal bonded body 8 can be realized, and by using a titanium material, a lightweight and strong metal bonded body 8 is realized. can do.
  • the first metal material 12 and / or the second metal material 14 are a steel material or a titanium material, the first metal material 12 and / or the second metal material 14 have a strong bonding interface such that these metals elongate in a tensile test. In some cases, the reliability of the joint is high enough to cause breakage.
  • the joining interface between the resin material 16 / the first metal material 12 and the joining interface with the resin material 16 / the second metal material 14 extends to the outside of the heat-affected zone.
  • the bonded area is inside the heat-affected zone, but since bonding is achieved over a wider area by pressing, high bonding strength and reliability are achieved. Can be realized.
  • the maximum diameter of the bubbles existing in the joint region is less than 0.1 mm. Since the maximum diameter of the bubble is less than 0.1 mm, the bubble hardly affects the joint properties, and the metal joined body 8 has extremely good mechanical properties. In addition, since bubbles at the joint cannot be clearly confirmed by visual observation, it is possible to suppress a reduction in image due to the presence of a defect at the joint.
  • Example 1 >> SPCC steel plate (25 mm ⁇ 100 mm ⁇ 0.6 mm) as the first metal material, A5052 aluminum alloy plate (25 mm ⁇ 100 mm ⁇ 1.0 mm) as the second metal material, polyamide resin (Reyfan manufactured by Toray Film Processing Co., Ltd.) as the resin material Using a film (25 mm ⁇ 15 mm ⁇ 100 ⁇ m), an SPCC steel plate / polyamide resin film / A5052 aluminum alloy plate was lap-joined by laser irradiation.
  • each of the SPCC plate and the aluminum alloy plate was irradiated at a beam size of 40 mm ⁇ 6 mm and a scanning speed of 2 mm / sec using a semiconductor laser manufactured by Laser Line Co., Ltd. for laser irradiation.
  • the output was set to 410 W for irradiation on the SPCC plate side, and the output was set to 1150 W for irradiation on the A5052 aluminum alloy plate side.
  • an SPCC steel plate and an A5052 alloy plate were subjected to oxalic acid electrolysis using an electrolytic solution having an oxalic acid concentration of 10% for an electrolysis time of 5 minutes (surface treatment step).
  • the oxalic acid electrolytically treated SPCC steel sheet and the A5052 alloy sheet are overlapped with each other via the polyamide resin film in the state shown in FIG. 4 to form a bonded interface (first step), and laser irradiation is performed from the SPCC steel sheet side.
  • the temperature of the interface to be joined was raised to or higher than the glass transition temperature of the polyamide resin, and then cooled to a temperature lower than the glass transition temperature by air cooling (second step) to produce an actual metal joined body.
  • FIG. 6 shows an overview photograph of a representative test piece after the tensile test. It can be confirmed that the SPCC steel sheet has been elongated and has been broken (the breaking strength is 5665 N). In addition, the joint part is maintaining a healthy state. From the results of the tensile test for Example 1, it is understood that a metal joined body having a joint strength high enough to break and / or elongate the SPCC steel sheet is obtained.
  • Example 2 SUS304 plate (25 mm x 100 mm x 0.5 mm) as the first metal material, pure titanium JIS 2 seed plate (25 mm x 100 mm x 0.5 mm) as the second metal material, polyphenylene sulfide resin (Torayna Tolerina) film as the resin material (25 mm ⁇ 15 mm ⁇ 100 ⁇ m), the SUS304 plate / polyphenylene sulfide resin film / pure titanium JIS type 2 plate were joined by laser irradiation. The laser irradiation was performed using a semiconductor laser manufactured by Laser Line Co., Ltd., and the laser output was controlled so that the temperature of the SUS304 plate surface (non-interface) was constant at 380 ° C.
  • the laser irradiation was performed using a semiconductor laser manufactured by Laser Line Co., Ltd., and the laser output was controlled so that the temperature of the SUS304 plate surface (non-interface) was constant at 380 ° C.
  • the interface temperature between SUS304 and the polyphenylene sulfide resin film was 350 to 380 ° C.
  • the interface temperature between pure titanium JIS 2 and the polyphenylene sulfide resin film was 230 to 260 ° C.
  • laser was applied only to the surface of the SUS304 plate.
  • FIGS. 7 and 8 show SEM photographs of the surface of the SUS304 plate as an example of the surface state by the treatment. It can be seen that the surface of the SUS304 plate is covered with oxide particles having a particle size of 1 to 100 nm, and has a fine and complicated three-dimensional structure.
  • Example 3 SUS304 plate (25 mm x 100 mm x 0.5 mm) as the first metal material, pure titanium JIS type 2 plate (25 mm x 100 mm x 0.5 mm) as the second metal material, polyethylene terephthalate resin (Lumirror manufactured by Toray Industries) film as the resin material (25 mm ⁇ 15 mm ⁇ 11 ⁇ m), the SUS304 plate / polyethylene terephthalate resin film / pure titanium JIS type 2 plate were joined by laser irradiation. The laser irradiation was performed using a semiconductor laser manufactured by Laser Line Co., Ltd., and the beam size was 40 mm ⁇ 6 mm, and the laser was applied only to the surface of the SUS304 plate.
  • polyethylene terephthalate resin Limirror manufactured by Toray Industries
  • the tensile shear strength of the obtained metal joined body was 1900 N, and the metal joint was separated from the joint.
  • the conditions under which the highest strength was obtained were again verified, and the tensile shear strength of the obtained metal joined body was 565 N, and the metal joint was peeled off from the joint.
  • the strength varied. It is considered that the reason is that the thickness of the resin film is too thin as 11 ⁇ m.
  • First metal material 4 Second metal material, 6 ... resin material, 8 ... metal joint, 12 ... first metal material, 14 ... second metal material, 16 ... resin material.

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laser Beam Processing (AREA)
  • Laminated Bodies (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
PCT/JP2019/037295 2018-09-25 2019-09-24 金属材の接合方法及び金属接合体 WO2020067022A1 (ja)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022230566A1 (ja) 2021-04-27 2022-11-03 国立大学法人 東京大学 接合体、基板、接合体の製造方法、及び、基板の製造方法
EP4151356A4 (en) * 2020-05-13 2024-02-28 Hirotec Corporation METHOD FOR BONDING THERMOPLASTIC RESIN AND METAL

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007029440A1 (ja) * 2005-09-01 2007-03-15 Osaka University 金属樹脂接合方法及び金属樹脂複合体、ガラス樹脂接合方法及びガラス樹脂複合体、並びにセラミック樹脂接合方法及びセラミック樹脂複合体
JP2009269401A (ja) * 2008-04-09 2009-11-19 Okayama Prefecture レーザ光を用いた接合方法
JP2010046831A (ja) * 2008-08-19 2010-03-04 Toyota Motor Corp 樹脂と金属との接合方法および装置
WO2012020531A1 (ja) * 2010-08-11 2012-02-16 株式会社日立製作所 レーザ接合方法
JP2018103548A (ja) * 2016-12-28 2018-07-05 株式会社ヒロテック 金属樹脂接合方法及び金属樹脂接合体

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100009150A1 (en) * 2006-10-05 2010-01-14 Okayama Prefectural Government Intermediate member for laser bonding and method of bonding using the same
JP2009119807A (ja) * 2007-11-19 2009-06-04 Dainippon Printing Co Ltd レーザー融着性積層材、レーザー融着方法および包装体
JP5342286B2 (ja) * 2008-05-16 2013-11-13 日東電工株式会社 シート接合体の製造方法及びシート接合体
JP5475421B2 (ja) * 2009-12-04 2014-04-16 株式会社神戸製鋼所 レーザー溶接用の銅材料または銅合金材料
CN104245282A (zh) * 2012-03-29 2014-12-24 帝人株式会社 接合构件的制造方法和接合构件
JP6199655B2 (ja) * 2013-08-07 2017-09-20 アイシン精機株式会社 複合成形品
JP2016132155A (ja) * 2015-01-19 2016-07-25 オムロン株式会社 レーザ溶着方法および接合構造体
JP6451421B2 (ja) * 2015-03-12 2019-01-16 オムロン株式会社 接合構造体の製造方法
DE102016215493A1 (de) * 2016-08-18 2018-02-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hybrider Werkstoffverbund zwischen einer Metalloberfläche und einer polymeren Materialoberfläche sowie Verfahren zur Herstellung des hybriden Werkstoffverbundes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007029440A1 (ja) * 2005-09-01 2007-03-15 Osaka University 金属樹脂接合方法及び金属樹脂複合体、ガラス樹脂接合方法及びガラス樹脂複合体、並びにセラミック樹脂接合方法及びセラミック樹脂複合体
JP2009269401A (ja) * 2008-04-09 2009-11-19 Okayama Prefecture レーザ光を用いた接合方法
JP2010046831A (ja) * 2008-08-19 2010-03-04 Toyota Motor Corp 樹脂と金属との接合方法および装置
WO2012020531A1 (ja) * 2010-08-11 2012-02-16 株式会社日立製作所 レーザ接合方法
JP2018103548A (ja) * 2016-12-28 2018-07-05 株式会社ヒロテック 金属樹脂接合方法及び金属樹脂接合体

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4151356A4 (en) * 2020-05-13 2024-02-28 Hirotec Corporation METHOD FOR BONDING THERMOPLASTIC RESIN AND METAL
WO2022230566A1 (ja) 2021-04-27 2022-11-03 国立大学法人 東京大学 接合体、基板、接合体の製造方法、及び、基板の製造方法
KR20230162669A (ko) 2021-04-27 2023-11-28 도꾜 다이가꾸 접합체, 기판, 접합체의 제조 방법, 및 기판의 제조 방법

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