JP4587574B2 - Laser welding method - Google Patents

Laser welding method Download PDF

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Publication number
JP4587574B2
JP4587574B2 JP2001020912A JP2001020912A JP4587574B2 JP 4587574 B2 JP4587574 B2 JP 4587574B2 JP 2001020912 A JP2001020912 A JP 2001020912A JP 2001020912 A JP2001020912 A JP 2001020912A JP 4587574 B2 JP4587574 B2 JP 4587574B2
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JP
Japan
Prior art keywords
resin
sheet
resin member
laser light
laser
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2001020912A
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Japanese (ja)
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JP2002225139A (en
Inventor
政弘 橋口
義明 中川
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2001020912A priority Critical patent/JP4587574B2/en
Publication of JP2002225139A publication Critical patent/JP2002225139A/en
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Publication of JP4587574B2 publication Critical patent/JP4587574B2/en
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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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • 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
    • 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
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning 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
    • 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
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B29C65/168—Laser beams making use of an absorber or impact modifier placed at the interface
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5057—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like positioned between the surfaces 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
    • B29C66/001—Joining in special atmospheres
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
    • B29C66/652—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool moving the welding tool around the fixed article
    • 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
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    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/826—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined
    • B29C66/8266—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using fluid pressure directly acting on the parts to be joined
    • B29C66/82661—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using fluid pressure directly acting on the parts to be joined by means of vacuum
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
    • B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
    • B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
    • B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
    • 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
    • B29C65/1638—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 focusing the laser beam on the interface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
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    • 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
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    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
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    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
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    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3008—Instrument panels

Description

【０００１】
【発明の属する技術分野】
本発明はレーザ光を利用して樹脂部材同士、或いは樹脂部材以外の部材を接合する方法に関する。
【０００２】
【従来の技術】
樹脂にはレーザ光透過率の高い樹脂と、レーザ光吸収率の高い樹脂があり、レーザ光吸収率の高い樹脂にレーザ光を照射すると当該樹脂は加熱され溶融する。
この現象を利用して本出願人は、レーザ光を透過する（透過率が高い）樹脂とレーザ光を吸収する（吸収率が高い）樹脂とを重ね、レーザ光を透過する樹脂の側から樹脂を重ねた部分にレーザ光を照射し、レーザ光を吸収する樹脂の一部を溶融せしめることで、樹脂部材同士を接合する方法を提案した（特公平５−４２３３６号公報）。また、同公報では、樹脂部材を加熱する代わりに樹脂部材間に介在せしめた接着剤をレーザ光で加熱することで樹脂部材同士を接合する方法も提案した。
【０００３】
上記提案は原理的なものであり、実際に樹脂部材同士を接合する場合には、互いの樹脂をレーザ光の照射中に動かないように固定する必要がある。この固定方法としては、特開平１１−３４８１３２号公報に開示されるように、一方の樹脂部材の上に他方の樹脂部材を重ね、この上から冶具で押さえ付ける方法が知られている。
【０００４】
【発明が解決しようとする課題】
レーザ光を利用した接合方法の利点の１つは、レーザ光を照射するレーザヘッドをＮＣ制御により３次元空間で自由に移動せしめることにより、複雑形状部であっても短時間のうちに確実に接合できることである。
【０００５】
しかしながら、上記したように、レーザ光を照射する際に樹脂部材同士を何らかの手段で固定する必要がある。特開平１１−３４８１３２号公報に開示されるような冶具を用いた場合には、レーザヘッドが移動する際に冶具に干渉することを避けなければならず、その結果、レーザヘッドの移動に制約が課せられてしまう。特に、大型樹脂部品あるいは複雑な形状の樹脂同士を接合する場合にはその傾向が顕著になる。
【０００６】
また、固定冶具が押さえている箇所は固定冶具自身が邪魔することになって接合することができず、更に機種変更があった場合には、新たな固定冶具を用意しなければならないなどコスト的な不利もある。
【０００７】
【課題を解決するための手段】
上記課題を解決するため、本発明にかかるレーザ溶接方法は、レーザ光透過性を有する第１の樹脂部材とレーザ光を吸収して加熱される第２の樹脂部材とを重ね、これらをレーザ光透過性を有するシートで覆い、シートと樹脂部材との間の空気を抜くことで第１の樹脂部材と第２の樹脂部材とを固定し、次いで前記シート及び第１の樹脂部材を通して接合部にレーザ光を照射し、該接合部を溶融せしめて第１の樹脂部材と第２の樹脂部材とを接合する。
【０００８】
例えば、受け台上に第２の樹脂部材をセットし、この上に第１の樹脂部材を重ね、更にこの上をシートで覆い、シートと樹脂部材との間の空気を抜くことでシートは受け台に密着し、樹脂部材同士がシートによって固定される。尚、本発明にあっては受け台については必ずしも用いる必要はない。更に、本発明におけるシートで覆う態様にはシートで袋を形成し、この袋の中に樹脂部材を入れて減圧して固定する態様も含む。
【０００９】
また、部材同士の接合部にレーザ光の吸収率が高い接着剤を介在させて接合する場合には、請求項２に記載したように、互いに接合される第１及び第２の部材は樹脂以外、例えばガラスなどでもよく、少なくとも一方がレーザ光を透過する部材であればよい。
【００１０】
【発明の実施の形態】
以下に本発明の実施の形態を添付図面に基づいて説明する。図１は受け冶具に樹脂部材をセットした状態を示す斜視図、図２は樹脂部材をレーザ溶接している状態の断面図、図３は図２の要部拡大断面図である。
【００１１】
図中１は受け台であり、この受け台1上にインストルメントパネル２とダクト３が重ねてセットされている。本実施例の場合、インストルメントパネル２はレーザ光の吸収率が高い材料からなり第２の樹脂部材に相当する。またダクト３はレーザ光の透過率が高い材料からなり第１の樹脂材料に相当する。
【００１２】
受け台１の上面の周囲には気密シール４が設けられ、この気密シール４に周縁部が重なるように柔軟性のあるシート５がインストルメントパネル２とダクト３を覆っている。このシート５は熱可塑性樹脂や天然ゴムからなりレーザ光を透過する特性を持つ。尚、シート５はレーザ光を透過する特性があればよく必ずしも透明である必要はない。
【００１３】
シート５の一部には吸引口６が設けられ、この吸引口６を真空ポンプにつなげている。尚、図示例では吸引口６を２つ設けているがその数は任意である。
【００１４】
また、受け台１の上方にはＹＡＧレーザなどの赤外レーザ光を照射するレーザヘッド７を配置している。このレーザヘッド７はＮＣ制御により３次元空間で移動する。
【００１５】
以上において、押さえプレート８などによってシート５の周囲を気密シール４に押し付けた状態で、吸引口６から吸引すると、シート５がインストルメントパネル２とダクト３に密着し、図２に示すように大気圧によってインストルメントパネル２とダクト３を受け台１に押え付ける。
【００１６】
そして、図３に示すように、レーザヘッド７からレーザ光を接合部に向けて照射する。すると、レーザ光の殆んどはシート５及びダクト３を透過し、インストルメントパネル２に吸収され、その結果インストルメントパネル２が加熱され、この加熱によってインストルメントパネル２及びダクト３の一部が溶融し、互いに接合する。
【００１７】
図４はインストルメントパネル２もレーザ光を透過する場合の接合方法を説明した図であり、この場合にはダクト３とインストルメントパネル２との間にレーザ光の吸収率が高い接着剤９を介在せしめ、この接着剤をレーザ照射によって溶融せしめる。
【００１８】
図示例にあっては、インストルメントパネル２とダクト３とを接合する例をしめしたが、本発明はこれ以外の樹脂製品は勿論のこと、レーザ光を透過する部材であれば樹脂部材でなくとも接合することができる。
【００１９】
【発明の効果】
以上に説明したように本発明によれば、レーザ光を利用して２つの部材を接合する際に、レーザ光を透過するシートによって互いに接合される部材を覆い、部材とシートとの間の空気を抜いてシートを部材に密着せしめることで部材同士を固定するようにしたので、従来のような固定冶具を用いる必要がなくなり、レーザヘッドの移動と干渉する部材をなくすことができる。
【００２０】
その結果、レーザヘッドは３次元空間において自由に移動できるので、大型樹脂製品或いは複雑形状品であっても短時間のうちに任意の箇所を接合することができる。
【００２１】
また、製品ごとに固定冶具を用意する必要がなくなり、更にシートは何回でも繰り返し使用することができるので、コスト的にきわめて有利である。
【図面の簡単な説明】
【図１】受け冶具に樹脂部材をセットした状態を示す斜視図
【図２】樹脂部材をレーザ溶接している状態の断面図
【図３】図２の要部拡大断面図
【図４】別実施例を示す図３と同様の断面図
【符号の説明】
１…受け台、２…インストルメントパネル、３…ダクト、４…気密シール、５…シート、６…吸引口、７…レーザヘッド、８…押さえプレート、９…接着剤。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method of joining resin members or members other than resin members using laser light.
[0002]
[Prior art]
The resin includes a resin having a high laser light transmittance and a resin having a high laser light absorption rate. When a resin having a high laser light absorption rate is irradiated with laser light, the resin is heated and melted.
Utilizing this phenomenon, the applicant of the present invention superimposes a resin that transmits laser light (high transmittance) and a resin that absorbs laser light (high absorption), and resin from the side of the resin that transmits laser light. A method has been proposed in which resin members are bonded to each other by irradiating a portion of the resin layer with laser light and melting a part of the resin that absorbs the laser light (Japanese Patent Publication No. 5-42336). In addition, the publication also proposes a method of joining resin members by heating an adhesive interposed between the resin members with laser light instead of heating the resin members.
[0003]
The above proposal is fundamental, and when the resin members are actually joined together, it is necessary to fix the resins so that they do not move during the irradiation of the laser beam. As this fixing method, as disclosed in JP-A-11-348132, a method is known in which the other resin member is stacked on one resin member and pressed with a jig from above.
[0004]
[Problems to be solved by the invention]
One of the advantages of the joining method using laser light is that the laser head that irradiates the laser light can be freely moved in a three-dimensional space by NC control, so that even a complicated shape portion can be reliably obtained in a short time. It can be joined.
[0005]
However, as described above, it is necessary to fix the resin members by some means when irradiating the laser beam. When using a jig as disclosed in Japanese Patent Application Laid-Open No. 11-348132, it is necessary to avoid interference with the jig when the laser head moves. As a result, there is a restriction on the movement of the laser head. Will be imposed. In particular, when joining large resin parts or resins having complicated shapes, the tendency becomes remarkable.
[0006]
In addition, the place where the fixing jig is pressed cannot be joined because the fixing jig itself interferes, and if there is a model change, a new fixing jig must be prepared. There are also disadvantages.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, a laser welding method according to the present invention includes a first resin member having laser beam transparency and a second resin member that is heated by absorbing the laser beam, and these are overlapped with the laser beam. Cover with a sheet having permeability, fix the first resin member and the second resin member by removing the air between the sheet and the resin member, and then to the joint through the sheet and the first resin member The first resin member and the second resin member are joined by irradiating the laser beam to melt the joining portion.
[0008]
For example, the second resin member is set on a cradle, the first resin member is overlaid thereon, further covered with a sheet, and the sheet is received by removing air between the sheet and the resin member. The resin members are in close contact with each other, and the resin members are fixed to each other by the sheet. In the present invention, the cradle is not necessarily used. Furthermore, the aspect covered with the sheet | seat in this invention includes the aspect which forms a bag with a sheet | seat, puts a resin member in this bag, and decompresses and fixes.
[0009]
In addition, when bonding is performed with an adhesive having a high laser light absorption rate interposed between the members, the first and second members bonded to each other are not resin, as described in claim 2. For example, glass or the like may be used as long as at least one of the members transmits laser light.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a perspective view showing a state in which a resin member is set on a receiving jig, FIG. 2 is a cross-sectional view of a state in which the resin member is laser-welded, and FIG. 3 is an enlarged cross-sectional view of the main part of FIG.
[0011]
In the figure, reference numeral 1 denotes a cradle, and an instrument panel 2 and a duct 3 are set on the cradle 1 in an overlapping manner. In the case of the present embodiment, the instrument panel 2 is made of a material having a high absorption rate of laser light and corresponds to the second resin member. The duct 3 is made of a material having a high laser beam transmittance and corresponds to the first resin material.
[0012]
An airtight seal 4 is provided around the upper surface of the cradle 1, and a flexible sheet 5 covers the instrument panel 2 and the duct 3 so that the peripheral edge overlaps the airtight seal 4. The sheet 5 is made of a thermoplastic resin or natural rubber and has a characteristic of transmitting laser light. Note that the sheet 5 is not necessarily transparent as long as it has a characteristic of transmitting laser light.
[0013]
A suction port 6 is provided in a part of the sheet 5, and this suction port 6 is connected to a vacuum pump. In the illustrated example, two suction ports 6 are provided, but the number is arbitrary.
[0014]
Further, a laser head 7 for irradiating infrared laser light such as YAG laser is disposed above the cradle 1. The laser head 7 moves in a three-dimensional space by NC control.
[0015]
In the above, when the periphery of the sheet 5 is pressed against the hermetic seal 4 by the presser plate 8 or the like, the sheet 5 comes into close contact with the instrument panel 2 and the duct 3 as shown in FIG. The instrument panel 2 and the duct 3 are pressed against the cradle 1 by atmospheric pressure.
[0016]
Then, as shown in FIG. 3, a laser beam is emitted from the laser head 7 toward the joint. As a result, most of the laser light passes through the sheet 5 and the duct 3 and is absorbed by the instrument panel 2. As a result, the instrument panel 2 is heated, and this heating causes a part of the instrument panel 2 and the duct 3 to be heated. Melt and join together.
[0017]
FIG. 4 is a diagram for explaining a joining method when the instrument panel 2 also transmits laser light. In this case, an adhesive 9 having a high laser light absorption rate is provided between the duct 3 and the instrument panel 2. The adhesive is melted by laser irradiation.
[0018]
In the illustrated example, the example in which the instrument panel 2 and the duct 3 are joined is shown. However, the present invention is not a resin member as long as it is a member that transmits laser light as well as other resin products. Can be joined together.
[0019]
【The invention's effect】
As described above, according to the present invention, when two members are joined using laser light, the members that are joined to each other are covered by a sheet that transmits the laser light, and the air between the members and the sheet is covered. Since the members are fixed by pulling out and attaching the sheet to the members, it is not necessary to use a conventional fixing jig, and members that interfere with the movement of the laser head can be eliminated.
[0020]
As a result, since the laser head can freely move in the three-dimensional space, it is possible to join arbitrary places in a short time even for a large resin product or a complex shape product.
[0021]
Further, it is not necessary to prepare a fixing jig for each product, and the sheet can be used repeatedly any number of times, which is extremely advantageous in terms of cost.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a resin member is set on a receiving jig. FIG. 2 is a cross-sectional view of a state in which a resin member is laser-welded. FIG. Sectional view similar to FIG. 3 showing the embodiment [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Stand, 2 ... Instrument panel, 3 ... Duct, 4 ... Airtight seal, 5 ... Sheet, 6 ... Suction port, 7 ... Laser head, 8 ... Holding plate, 9 ... Adhesive.

Claims (2)

レーザ光透過性を有する第１の樹脂部材とレーザ光を吸収して加熱される第２の樹脂部材とを重ね、これらをレーザ光透過性を有するシートで覆い、シートと樹脂部材との間の空気を抜くことで第１の樹脂部材と第２の樹脂部材とを固定し、次いで前記シート及び第１の樹脂部材を通して接合部にレーザ光を照射し、該接合部を溶融せしめて第１の樹脂部材と第２の樹脂部材とを接合することを特徴とするレーザ溶接方法。The first resin member having laser beam transparency and the second resin member to be heated by absorbing the laser beam are overlapped, and these are covered with a sheet having laser beam transparency, and between the sheet and the resin member. The first resin member and the second resin member are fixed by removing the air, and then the joint portion is irradiated with laser light through the sheet and the first resin member to melt the joint portion and thereby the first resin member is melted. A laser welding method comprising joining a resin member and a second resin member. 少なくとも一方がレーザ光透過性を有する第１の部材と第２の部材とをレーザ光を吸収して加熱されることで接着作用を発揮する接着剤を介して重ね、これらをレーザ光透過性を有するシートで覆い、シートと前記部材との間の空気を抜くことで第１の部材と第２の部材とを固定し、次いで前記シート及びレーザ光透過性を有する部材を通して接合部にレーザ光を照射し、接着剤を加熱して第１の部材と第２の部材とを接合することを特徴とするレーザ溶接方法。At least one of the first member and the second member having laser beam transparency is overlapped with an adhesive exhibiting an adhesive action by absorbing the laser beam and being heated, and these are laminated with the laser beam transmittance. The first member and the second member are fixed by removing the air between the sheet and the member, and then laser light is transmitted to the joint portion through the sheet and the member having laser light transmittance. Irradiating, heating an adhesive, and joining a 1st member and a 2nd member, The laser welding method characterized by the above-mentioned.
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JP2007111926A (en) * 2005-10-19 2007-05-10 Toyota Motor Corp Method and apparatus for laser beam welding of thermoplastic resin member
WO2008044349A1 (en) * 2006-10-05 2008-04-17 Okayama Prefectural Government Intermediate member for laser bonding and method of bonding using the same
JP2008114420A (en) * 2006-11-01 2008-05-22 Hamamatsu Photonics Kk Laser welding method, laser welding apparatus and manufacturing method of resin product
US20080191379A1 (en) 2007-02-12 2008-08-14 Ford Global Technologies, Llc Molded-in-color vehicle panel and mold
US20080318051A1 (en) 2007-06-22 2008-12-25 Ford Global Technologies, Llc Molding system and molded-in-color panel
CN101711196B (en) 2007-06-26 2012-03-21 通用电气医疗集团生物科学生物方法公司 An apparatus for laser cutting and welding
EP3660430B1 (en) * 2015-10-29 2022-10-05 LG Electronics Inc. Refrigerator and apparatus for fabricating the same
KR102486968B1 (en) * 2015-10-29 2023-01-11 엘지전자 주식회사 Refrigerator and fabrication apparatus of the refrigerator
JP6448105B1 (en) * 2018-04-30 2019-01-09 株式会社ウィル Electroforming roll manufacturing method
DE102022206071A1 (en) * 2022-06-15 2023-12-21 Lpkf Laser & Electronics Aktiengesellschaft Joining device for the laser transmission joining of a thermoplastic component with a glass-like component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4961266A (en) * 1972-10-17 1974-06-13
JPS62142092A (en) * 1985-12-17 1987-06-25 Honda Motor Co Ltd Adhering method for member by laser
JPH07186331A (en) * 1993-12-27 1995-07-25 Bridgestone Corp Production of laminate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4961266A (en) * 1972-10-17 1974-06-13
JPS62142092A (en) * 1985-12-17 1987-06-25 Honda Motor Co Ltd Adhering method for member by laser
JPH07186331A (en) * 1993-12-27 1995-07-25 Bridgestone Corp Production of laminate

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