JP2015063090A - Metal resin joining method - Google Patents
Metal resin joining method Download PDFInfo
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- JP2015063090A JP2015063090A JP2013198969A JP2013198969A JP2015063090A JP 2015063090 A JP2015063090 A JP 2015063090A JP 2013198969 A JP2013198969 A JP 2013198969A JP 2013198969 A JP2013198969 A JP 2013198969A JP 2015063090 A JP2015063090 A JP 2015063090A
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- 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
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- 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
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- 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
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- 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
- B29C65/82—Testing the joint
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
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- 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
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- 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
- B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
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- 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
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- 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
- B29C66/30321—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 protrusions belonging to at least one of the parts to be joined
- B29C66/30322—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 protrusions belonging to at least one of the parts to be joined in the form of rugosity
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- 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
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- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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- 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
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- 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
- B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
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- 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
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- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
本発明は金属樹脂接合方法に関する。 The present invention relates to a metal resin bonding method.
金属や合金等の部材で形成された金属部品と、熱可塑性樹脂組成物から構成される樹脂部品と、が一体化されて形成された複合成形体が知られている。複合成形体は、自動車の内装部品やインテリア部品、電子機器のインターフェース接続部等に用いられている。特許文献１には、金属表面をレーザーで粗面化し、粗面化した金属表面に樹脂フィルムを圧着させる技術が記載されている。 There is known a composite molded body formed by integrating a metal part formed of a member such as a metal or an alloy and a resin part composed of a thermoplastic resin composition. Composite molded bodies are used for interior parts and interior parts of automobiles, interface connection parts of electronic devices, and the like. Patent Document 1 describes a technique in which a metal surface is roughened with a laser and a resin film is pressure-bonded to the roughened metal surface.
特許文献１に記載の技術では、一定の接合強度を得ることができる。しかし、製品によっては更に高い強度が要求される場合があり、接合強度が不十分である場合、対応が困難であるという問題があった。本発明はこのような問題を解決するためになされたものであり、より接合強度の高い金属樹脂接合方法を提供することを目的とする。 With the technique described in Patent Document 1, a certain bonding strength can be obtained. However, depending on the product, there is a case where higher strength is required, and there is a problem that it is difficult to cope with when the bonding strength is insufficient. The present invention has been made to solve such a problem, and an object thereof is to provide a metal resin bonding method with higher bonding strength.
本発明にかかる金属樹脂接合方法は、金属部品の表面にレーザ又は電子ビームを照射することで、複数のドットを形成して粗面化し、粗面化された金属表面に樹脂フィルムを重ねた状態で、熱板により金属部品と樹脂フィルムとを加圧して接合するか、又は、粗面化された金属表面に樹脂フィルムを重ねた状態で、樹脂フィルムに対してレーザを照射して加熱して接合するか、するものであって、金属表面に形成されたドットは、略円形形状であって、ドット間のピッチＬと、ドットの直径Ｄとが、５＜（Ｌ−Ｄ）＜２０（μｍ）となるよう形成されるものである。これにより、金属表面と樹脂フィルムとをより強固に接合することができる。 The metal resin bonding method according to the present invention is a state in which a surface of a metal part is irradiated with a laser or an electron beam to form a plurality of dots to roughen the surface, and a resin film is superimposed on the roughened metal surface. In the state where the metal part and the resin film are pressed and joined with the hot plate, or the resin film is superimposed on the roughened metal surface, the resin film is irradiated with a laser and heated. The dots formed on the metal surface have a substantially circular shape, and the pitch L between the dots and the dot diameter D are 5 <(LD) <20 ( μm). Thereby, a metal surface and a resin film can be joined more firmly.
これにより、より接合強度の高い金属樹脂接合方法を提供することができる。 Thereby, the metal resin joining method with higher joint strength can be provided.
実施の形態１
以下、図面を参照して本発明の実施の形態について説明する。説明のために、まず、金属樹脂の接合工程について説明する。図１は、金属樹脂の接合工程を示す図である。本実施の形態にかかる金属樹脂接合は、金属部品１００と、樹脂フィルム２００と、を接合する。
Embodiment 1
Embodiments of the present invention will be described below with reference to the drawings. For the sake of explanation, first, the metal resin bonding step will be described. FIG. 1 is a diagram illustrating a metal resin bonding step. In the metal resin bonding according to the present embodiment, the metal component 100 and the resin film 200 are bonded.
図１（ａ）は、金属部品１００の金属表面１０１に、レーザを照射している状況を示す側面図である。図１（ａ）に示すように、まず、金属部品１００の金属表面１０１に、レーザ又は電子ビームを照射して微細なドットを形成する。図１（ｂ）は、ドットが形成された金属表面１０１の一部を拡大した図である。 FIG. 1A is a side view showing a state in which the metal surface 101 of the metal component 100 is irradiated with a laser. As shown in FIG. 1A, first, fine dots are formed by irradiating the metal surface 101 of the metal component 100 with a laser or an electron beam. FIG. 1B is an enlarged view of a part of the metal surface 101 on which dots are formed.
次に、図１（ｃ）に示すように、金属部品１００のドットが形成された金属表面１０１に樹脂フィルム２００を重ねる。 Next, as shown in FIG.1 (c), the resin film 200 is piled up on the metal surface 101 in which the dot of the metal component 100 was formed.
次に、金属部品１００と樹脂フィルム２００とを接合して、金属樹脂３００を形成する。図１（ｄ）は、金属部品１００と樹脂フィルム２００とを上下方向から熱板で加圧することで、金属部品１００と樹脂フィルム２００に加熱及び加圧を加えて接合する接合工程を示す図である。図１（ｅ）は、金属部品１００に重ねられた樹脂フィルム２００に対して、レーザ等で加熱して接合する接合工程を示す図である。本実施の形態においては、これら２つの接合工程のうちどちらのやり方で接合してもよい。 Next, the metal component 100 and the resin film 200 are joined to form the metal resin 300. FIG.1 (d) is a figure which shows the joining process which adds the heating and pressurization to the metal component 100 and the resin film 200 by pressurizing the metal component 100 and the resin film 200 with a hot plate from the up-down direction. is there. FIG. 1 (e) is a diagram illustrating a joining process in which the resin film 200 stacked on the metal part 100 is joined by heating with a laser or the like. In the present embodiment, the joining may be performed by any one of these two joining steps.
ここで、実施の形態にかかる金属樹脂接合方法では、金属部品１００の金属表面１０１に形成される微細なドットの形状に特徴を有する。図２（ａ）は、実施の形態にかかる金属部品１００の金属表面１０１に形成される粗面形状１０２を示す図である。 Here, the metal resin bonding method according to the embodiment is characterized by the shape of fine dots formed on the metal surface 101 of the metal component 100. FIG. 2A is a diagram illustrating a rough surface shape 102 formed on the metal surface 101 of the metal component 100 according to the embodiment.
粗面形状１０２は、レーザ又は電子ビームの照射により金属表面１０１に形成された複数のドット１０３から構成される。ドット１０３は、略円形であり、金属表面１０１に略等間隔に配置される。ドット１０３は、その配置間隔に特徴を有し、ドット１０３同士のピッチをＬとし、ドット１０３の直径をＤとしたとき、ドット間距離（Ｌ−Ｄ）が、式（１）のように規定される。 The rough surface shape 102 is composed of a plurality of dots 103 formed on the metal surface 101 by laser or electron beam irradiation. The dots 103 are substantially circular and are arranged on the metal surface 101 at substantially equal intervals. The dots 103 are characterized by their arrangement intervals. When the pitch between the dots 103 is L and the diameter of the dots 103 is D, the inter-dot distance (LD) is defined as shown in Expression (1). Is done.
図２（ｂ）は、金属樹脂３００の一部を拡大した平面図と、平面図におけるＡ−Ａ′直線に沿って切断した金属樹脂３００の断面を示す図である。ドット１０３の外周部分に形成される縁１０４の間の隙間１０５に樹脂フィルム２００の樹脂が入り込む構造となる。図２（ｂ）に示すハッチングの領域は、隙間１０５に入り込んだ樹脂の一部を示す。 FIG. 2B is a plan view in which a part of the metal resin 300 is enlarged, and a cross section of the metal resin 300 cut along the line AA ′ in the plan view. The resin of the resin film 200 enters the gap 105 between the edges 104 formed on the outer periphery of the dot 103. The hatched area shown in FIG. 2B shows a part of the resin that has entered the gap 105.
本実施の形態においては、ドット１０３が、式（１）に規定された関係で配置されることにより、ドット１０３の間の隙間に樹脂フィルム２００の樹脂が入り込み拘束される。このため、金属部品１００に対して、樹脂フィルム２００がより強固に接合し、より接合強度の高い金属樹脂を提供することができる。 In the present embodiment, the dots 103 are arranged in the relationship defined in the expression (1), so that the resin of the resin film 200 enters and is constrained in the gaps between the dots 103. For this reason, the resin film 200 can be more strongly bonded to the metal component 100, and a metal resin having higher bonding strength can be provided.
また、接合機構として、ｎｍ単位の微細な樹枝状構造の隙間に樹脂が入り込むという、微細な領域でのアンカー効果を狙った方法があるが、通常の製品の生産ラインのサイクルタイムは数秒であるため、このような接合機構を安定して生成するのは困難と考えられる。これに対し、本実施の形態にかかる金属樹脂接合方法では、金属表面１０１の表面にμｍ単位の粗面形状１０２を形成するため、生産ラインのサイクルタイムにも対応可能であり、かつ接合強度も向上させることができる。 In addition, as a bonding mechanism, there is a method aiming for an anchor effect in a minute region in which resin enters a gap between minute dendritic structures in nm units, but the cycle time of a normal product production line is several seconds. Therefore, it is considered difficult to stably generate such a joining mechanism. On the other hand, in the metal resin bonding method according to the present embodiment, since the rough surface shape 102 in units of μm is formed on the surface of the metal surface 101, it is possible to cope with the cycle time of the production line and the bonding strength. Can be improved.
次に、実施例について説明する。なお、本発明は以下の実施例に限定されるものではない。実施例１として、金属部品１００に対して、汎用のレーザマーカ（不図示）を用いて、直径が５０μｍ程度のドット１０３から構成される粗面形状１０２を形成した。条件１として、レーザマーカの出力を１．６Ｗ、周波数を１１ｋＨｚとした。条件２として、レーザマーカの出力を３．２Ｗ、周波数を１５ｋＨｚとした。条件３として、レーザマーカの出力を３．２Ｗ、周波数を２３ｋＨｚとした。 Next, examples will be described. In addition, this invention is not limited to a following example. As Example 1, a rough surface shape 102 composed of dots 103 having a diameter of about 50 μm was formed on the metal component 100 using a general-purpose laser marker (not shown). As condition 1, the output of the laser marker was 1.6 W and the frequency was 11 kHz. As condition 2, the output of the laser marker was 3.2 W and the frequency was 15 kHz. As condition 3, the output of the laser marker was 3.2 W and the frequency was 23 kHz.
図３（ａ）〜（ｂ）は、条件１〜３でレーザマーカを金属表面１０１に照射することにより形成された粗面形状１０２を示す。条件１では、ドット間距離（Ｌ−Ｄ）は３０〜４０μｍとなり、接合強度は５ＭＰaとなった。条件２では、ドット間距離（Ｌ−Ｄ）は２〜５μｍとなり、接合強度は７．５ＭＰａとなった。条件３では、ドット１０３同士が干渉し、接合強度は５．５ＭＰａとなった。 3A to 3B show a rough surface shape 102 formed by irradiating the metal surface 101 with a laser marker under conditions 1 to 3. FIG. Under Condition 1, the inter-dot distance (LD) was 30 to 40 μm, and the bonding strength was 5 MPa. Under Condition 2, the inter-dot distance (LD) was 2 to 5 μm, and the bonding strength was 7.5 MPa. Under condition 3, the dots 103 interfered with each other, and the bonding strength was 5.5 MPa.
次に、実施例２として、ドット間距離（Ｌ−Ｄ）を様々に変化させた場合の金属部品１００と樹脂フィルム２００との接合強度を調べた。図４は、実施例２における接合強度とドット間距離（Ｌ−Ｄ）との関係を示すグラフである。 Next, as Example 2, the bonding strength between the metal part 100 and the resin film 200 when the inter-dot distance (LD) was changed in various ways was examined. FIG. 4 is a graph showing the relationship between bonding strength and inter-dot distance (LD) in Example 2.
実施例１及び実施例の結果から、ドット間距離（Ｌ−Ｄ）と接合強度との相関関係を確認できる。そして、ドット間距離（Ｌ−Ｄ）が５μｍより大きく２０μｍより小さい範囲で、最適な条件を決定することが好ましいと言える。 From the results of Example 1 and Example, the correlation between the inter-dot distance (LD) and the bonding strength can be confirmed. Then, it can be said that it is preferable to determine the optimum conditions in a range where the inter-dot distance (LD) is larger than 5 μm and smaller than 20 μm.
なお、本発明は上記実施の形態に限られたものではなく、趣旨を逸脱しない範囲で適宜変更することが可能である。 Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.
１００ 金属部品
１０１ 金属表面
１０２ 粗面形状
１０３ ドット
１０４ 縁
１０５ 隙間
２００ 樹脂フィルム
３００ 金属樹脂
DESCRIPTION OF SYMBOLS 100 Metal component 101 Metal surface 102 Rough surface shape 103 Dot 104 Edge 105 Crevice 200 Resin film 300 Metal resin
Claims (1)
前記粗面化された金属表面に樹脂フィルムを重ねた状態で、熱板により前記金属部品と前記樹脂フィルムとを加圧して接合するか、
又は、前記粗面化された金属表面に前記樹脂フィルムを重ねた状態で、前記樹脂フィルムに対してレーザを照射して加熱して接合するか、する金属樹脂の接合方法であって、
前記金属表面に形成されたドットは、略円形形状であって、ドット間のピッチＬと、ドットの直径Ｄとが、
５＜（Ｌ−Ｄ）＜２０（μｍ）
となるよう形成される、金属樹脂接合方法。 By irradiating the surface of a metal part with a laser or an electron beam, a plurality of dots are formed and roughened,
In a state where a resin film is stacked on the roughened metal surface, the metal part and the resin film are pressed and joined by a hot plate,
Or, in a state where the resin film is overlaid on the roughened metal surface, the resin film is irradiated with a laser to be heated or bonded, or a metal resin bonding method,
The dots formed on the metal surface have a substantially circular shape, and the pitch L between the dots and the diameter D of the dots are
5 <(LD) <20 (μm)
The metal resin joining method formed so that it becomes.
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| JP2016130003A (en) * | 2015-01-08 | 2016-07-21 | 輝創株式会社 | Joint method of member using laser |
| WO2017094353A1 (en) * | 2015-11-30 | 2017-06-08 | 日立オートモティブシステムズ株式会社 | Electronic control device and method for manufacturing electronic control device |
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| JP2016130003A (en) * | 2015-01-08 | 2016-07-21 | 輝創株式会社 | Joint method of member using laser |
| WO2017094353A1 (en) * | 2015-11-30 | 2017-06-08 | 日立オートモティブシステムズ株式会社 | Electronic control device and method for manufacturing electronic control device |
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| WO2021089406A1 (en) * | 2019-11-04 | 2021-05-14 | HELLA GmbH & Co. KGaA | Method for joining a thermoplastic film to a metal component |
| CN114630746A (en) * | 2019-11-04 | 2022-06-14 | 海拉有限双合股份公司 | Method for joining thermoplastic film to metal member |
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