JP2009137101A - Light welding apparatus and light welding method - Google Patents
Light welding apparatus and light welding method Download PDFInfo
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- JP2009137101A JP2009137101A JP2007314548A JP2007314548A JP2009137101A JP 2009137101 A JP2009137101 A JP 2009137101A JP 2007314548 A JP2007314548 A JP 2007314548A JP 2007314548 A JP2007314548 A JP 2007314548A JP 2009137101 A JP2009137101 A JP 2009137101A
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- resin member
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- welded portion
- welded
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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
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
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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
- B29C65/1429—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 characterised by the way of heating the interface
- B29C65/1435—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 characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. 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
- B29C65/14—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
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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
- B29C65/02—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
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/245—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool the heat transfer being achieved contactless, e.g. by radiation
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- 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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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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
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- 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
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- B29C66/01—General aspects dealing with the joint area or with the area to be joined
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- B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
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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
- B29C66/50—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
- B29C66/542—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 joining hollow covers or hollow bottoms to open ends of container bodies
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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
- B29C66/733—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
- B29C66/7336—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light
- B29C66/73365—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 optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being opaque, transparent or translucent to visible light at least one of the parts to be joined being transparent or translucent to visible light
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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
- B29C66/812—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
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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
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- 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
- B29C65/1403—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 characterised by the type of electromagnetic or particle radiation
- B29C65/1412—Infrared [IR] 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
- 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
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- B29C65/1412—Infrared [IR] radiation
- B29C65/1416—Near-infrared radiation [NIR]
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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
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- B29C65/1403—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 characterised by the type of electromagnetic or particle radiation
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- B29C65/1422—Far-infrared radiation [FIR]
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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
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning 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
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L2031/00—Other particular articles
- B29L2031/747—Lightning equipment
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Abstract
Description
本発明は光線溶着装置及び光線溶着方法に関する。詳しくは、加熱することにより第1の樹脂部材の溶着部と第2の樹脂部材の溶着部を密着させて作業性の向上を図った上で第1の樹脂部材と第2の樹脂部材の溶着による良好な接合性を確保する技術分野に関する。 The present invention relates to a beam welding apparatus and a beam welding method. Specifically, the welded portion of the first resin member and the welded portion of the second resin member are brought into close contact with each other by heating to improve workability, and then the first resin member and the second resin member are welded. The present invention relates to a technical field that ensures good bondability.
光線溶着装置によって第1の樹脂部材と第2の樹脂部材、例えば、レンズとランプボデイを溶着する光線溶着方法として、レンズの溶着部とランプボデイの溶着部を突き合わせた状態において、光源からレーザー光等の照射光線を出射し、互いの溶着部を溶着する方法がある。 As a light beam welding method for welding a first resin member and a second resin member, for example, a lens and a lamp body, with a light beam welding device, a laser beam is emitted from the light source in a state where the lens welded portion and the lamp body welded portion are abutted. For example, there is a method of emitting irradiation beams such as the above and welding the welded portions.
このような光線溶着方法においては、レンズの溶着部とランプボデイの溶着部を突き合わせた状態において両者の間に隙間が生じていると、溶着時によるレンズとランプボデイとの間の良好な接合性が得られないが、突き合わせた状態において溶着部間に隙間を生じないようにするためには、溶着部の精度の高い面圧管理やレンズ及びランプボデイの高精度の設計が必要となり、その分、車輌用灯具の製造コストの高騰を来たしてしまう。 In such a light beam welding method, when a gap is generated between the lens welded portion and the lamp body welded portion, the good bonding between the lens and the lamp body during welding is achieved. However, in order to prevent gaps between the welded parts in the butted state, high-precision surface pressure management of the welded parts and high-precision design of the lens and lamp body are required. The production cost of vehicle lamps will soar.
そこで、従来の光線溶着方法として、レンズをランプボデイに対して押さえ治具によって押し付けてレーザー光等の照射光線をレンズとランプボデイの接触面(溶着面)に照射し、両者を溶着する方法がある(例えば、特許文献1参照)。 Therefore, as a conventional beam welding method, there is a method in which a lens is pressed against a lamp body with a holding jig, and an irradiation beam such as a laser beam is irradiated on a contact surface (welding surface) of the lens and the lamp body to weld both. Yes (see, for example, Patent Document 1).
特許文献1に記載された車輌用灯具の光線溶着方法は、以下のような手順で行われる。 The light welding method for a vehicular lamp described in Patent Document 1 is performed in the following procedure.
レンズとランプボデイの各一部は、溶着によって互いに接合される溶着部として設けられている。 Each part of the lens and the lamp body is provided as a welded portion that is joined to each other by welding.
例えば、ランプボデイの溶着部にレンズ側へ盛り上がる凸状に形成された肉盛部を設け、先ず、ヒーター等の発熱体を肉盛部の上方へ移動し肉盛部を加熱して軟化させる。肉盛部に対する加熱を終了すると、発熱体を肉盛部から離隔する方向へ移動する。肉盛部が軟化された状態においては、肉盛部が荷重を受けたときに容易に変形することが可能とされている。 For example, a build-up portion formed in a convex shape rising to the lens side is provided at the welded portion of the lamp body, and first, a heating element such as a heater is moved above the build-up portion to heat and soften the build-up portion. When the heating for the build-up portion is completed, the heating element is moved in a direction away from the build-up portion. In the state where the build-up portion is softened, the build-up portion can be easily deformed when subjected to a load.
次に、レンズをランプボデイに押さえ治具によって押し付ける。レンズをランプボデイに押し付けることにより、軟化されている肉盛部が、押し付けられたレンズの溶着部の形状に倣うように変形され、レンズの溶着部とランプボデイの溶着部(肉盛部)が密着される。 Next, the lens is pressed against the lamp body with a holding jig. By pressing the lens against the lamp body, the softened overlay is deformed to follow the shape of the welded portion of the pressed lens, and the lens weld and the lamp body weld (build-up) Close contact.
最後に、レンズの溶着部とランプボデイの溶着部が密着された状態において、レンズの外側からレーザー光等の照射光線を出射する。出射された照射光線は、透明材料によって形成されたレンズを透過してランプボデイの溶着部に達し、該ランプボデイの溶着部とレンズの溶着部が溶融されて溶着される。 Finally, in a state where the welded part of the lens and the welded part of the lamp body are in close contact, an irradiation beam such as a laser beam is emitted from the outside of the lens. The emitted irradiation light passes through the lens formed of the transparent material and reaches the welded portion of the lamp body, and the welded portion of the lampbody and the welded portion of the lens are melted and welded.
ところが、特許文献1に記載された光線溶着装置及び光線溶着方法は、押さえ治具によってレンズをランプボデイに押し付ける前に、ヒーター等の発熱体を肉盛部の上方へ移動し肉盛部を加熱して軟化させ、加熱の終了後に発熱体を肉盛部から離隔する方向へ移動させる必要がある。 However, in the light beam welding apparatus and the light beam welding method described in Patent Document 1, before the lens is pressed against the lamp body by a holding jig, a heating element such as a heater is moved above the built-up portion to heat the built-up portion. It is necessary to move the heating element in a direction away from the built-up portion after the heating is completed.
従って、押さえ治具による押さえ作業の前に、発熱体をランプボデイに対して離接する方向へ移動しなければならず、発熱体による加熱作業と押さえ治具による押さえ作業とを連続して行うことができず、作業性が悪く溶着作業に時間がかかると言う問題がある。 Therefore, before the pressing work with the pressing jig, the heating element must be moved away from and in contact with the lamp body, and the heating work with the heating element and the pressing work with the pressing jig must be performed continuously. However, there is a problem that the workability is poor and the welding work takes time.
そこで、本発明光線溶着装置及び光線溶着方法は、作業性の向上を図った上で第1の樹脂部材と第2の樹脂部材の溶着による良好な接合性を確保することを課題とする。 Then, the light beam welding apparatus and the light beam welding method of the present invention have an object of ensuring good bondability by welding the first resin member and the second resin member after improving workability.
光線溶着装置は、上記した課題を解決するために、第1の樹脂部材の溶着部を第2の樹脂部材の溶着部に押し付けると共に透明材料によって形成された押さえ治具と、前記押さえ治具及び前記第1の樹脂部材を透過する前記照射光線を前記第2の樹脂部材の前記溶着部に照射する光源とを設け、前記押さえ治具に、前記第1の樹脂部材に接して該第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を加熱して軟化させ前記第1の樹脂部材の前記溶着部と前記第2の樹脂部材の前記溶着部とを密着させると共に透明材料によって形成された発熱体を設けたものである。 In order to solve the above-described problems, the light beam welding apparatus presses the welded portion of the first resin member against the welded portion of the second resin member and is formed of a transparent material, the presser jig, A light source that irradiates the welded portion of the second resin member with the irradiation light beam that passes through the first resin member, and the first jig is in contact with the first resin member. At least one of the welded part of the resin member or the welded part of the second resin member is heated and softened so that the welded part of the first resin member and the welded part of the second resin member are in close contact with each other. And a heating element formed of a transparent material.
光線溶着方法は、上記した課題を解決するために、透明材料によって形成された押さえ治具を用いて第1の樹脂部材の溶着部を第2の樹脂部材の溶着部に押し付ける押付工程と、前記押さえ治具によって前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けた状態において、加熱することにより前記第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を軟化させて前記溶着部同士を密着する加熱工程と、光源から前記照射光線を前記押さえ治具及び前記第1の樹脂部材を透過させて前記第2の樹脂部材の前記溶着部に照射し前記第1の樹脂部材と前記第2の樹脂部材を溶着する溶着工程とを設けたものである。 In order to solve the above problems, the light beam welding method uses a pressing jig formed of a transparent material to press the welding portion of the first resin member against the welding portion of the second resin member, and In a state where the welded portion of the first resin member is pressed against the welded portion of the second resin member by a holding jig, the welded portion of the first resin member or the second portion is heated by heating. A heating step of softening at least one of the welded portions of the resin member to bring the welded portions into close contact with each other; and passing the irradiation light beam from a light source through the pressing jig and the first resin member to form the second resin A welding step for irradiating the welding portion of the member to weld the first resin member and the second resin member is provided.
従って、光線溶着装置及び光線溶着方法にあっては、押さえ治具によって第1の樹脂部材の溶着部が第2の樹脂部材の溶着部に押し付けられた状態において溶着部が加熱される。 Therefore, in the light beam welding apparatus and the light beam welding method, the welded portion is heated in a state where the welded portion of the first resin member is pressed against the welded portion of the second resin member by the holding jig.
本発明光線溶着装置は、照射光線に対して透過性を有し溶着部が設けられた第1の樹脂部材と前記照射光線に対して前記第1の樹脂部材に対する透過性より小さい透過性を有し溶着部が設けられた第2の樹脂部材とを前記照射光線によって溶着する光線溶着装置であって、前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けると共に透明材料によって形成された押さえ治具と、前記押さえ治具及び前記第1の樹脂部材を透過する前記照射光線を前記第2の樹脂部材の前記溶着部に照射する光源とを備え、前記押さえ治具に、前記第1の樹脂部材に接して該第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を加熱して軟化させ前記第1の樹脂部材の前記溶着部と前記第2の樹脂部材の前記溶着部とを密着させると共に透明材料によって形成された発熱体を設けたことを特徴とする。 The light beam welding apparatus of the present invention has a first resin member that is transmissive to the irradiated light beam and provided with a welded portion, and has a smaller light transmittance than the first resin member for the irradiated light beam. A beam welding apparatus that welds the second resin member provided with a weld portion with the irradiation light, and presses the weld portion of the first resin member against the weld portion of the second resin member. And a pressing jig formed of a transparent material, and a light source that irradiates the welded portion of the second resin member with the irradiation light beam that passes through the pressing jig and the first resin member. A jig is heated to soften at least one of the welded portion of the first resin member or the welded portion of the second resin member in contact with the first resin member. The welded portion and the second resin portion Characterized in that a said formed by a transparent material heat generator with adhering the welded portion.
従って、押さえ治具による押さえ作業の前に溶着部を加熱する発熱体を第2の樹脂部材に対して離接する方向へ移動する必要がなく、発熱体による加熱作業と押さえ治具による押さえ作業とを連続して行うことができ、作業性の向上を図った上で第1の樹脂部材と第2の樹脂部材の溶着による良好な接合性を確保することができる。 Therefore, it is not necessary to move the heating element for heating the welded portion in the direction of separating from the second resin member before the pressing work by the pressing jig, and the heating work by the heating element and the pressing work by the pressing jig Thus, good workability can be ensured by welding the first resin member and the second resin member while improving workability.
請求項2に記載した発明にあっては、前記発熱体によって加熱された前記第1の樹脂部材の前記溶着部の温度が、ガラス転移温度以上、荷重たわみ温度未満になるようにしたので、溶着部を溶融することなく軟化させてゴム状の弾性を有する状態とすることができる。 In the invention described in claim 2, since the temperature of the welded portion of the first resin member heated by the heating element is set to be equal to or higher than the glass transition temperature and lower than the deflection temperature under load. The part can be softened without melting and can have a rubber-like elasticity.
請求項3に記載した発明にあっては、前記発熱体から赤外光を発するようにし、前記赤外光の波長領域を2.5μm以上30μm以下としたので、第1の樹脂部材の溶着部及び第2の樹脂部材の溶着部が赤外光によっても軟化され得るため、加熱と赤外光による溶着部の軟化により溶着部同士の密着性の向上を図ることができる。
In the invention described in
本発明光線溶着方法は、照射光線に対して透過性を有し溶着部が設けられた第1の樹脂部材と前記照射光線に対して前記第1の樹脂部材に対する透過性より小さい透過性を有し溶着部が設けられた第2の樹脂部材とを前記照射光線によって溶着する光線溶着方法であって、透明材料によって形成された押さえ治具を用いて前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付ける押付工程と、前記押さえ治具によって前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けた状態において、加熱することにより前記第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を軟化させて前記溶着部同士を密着する加熱工程と、光源から前記照射光線を前記押さえ治具及び前記第1の樹脂部材を透過させて前記第2の樹脂部材の前記溶着部に照射し前記第1の樹脂部材と前記第2の樹脂部材を溶着する溶着工程とを備えたことを特徴とする。 The light beam welding method of the present invention has a first resin member that is transparent to the irradiated light beam and has a permeability smaller than the transparent property to the first resin member and the irradiated light beam. A welding method for welding the second resin member provided with a welding portion by the irradiation light beam, wherein the welding portion of the first resin member is attached using a pressing jig formed of a transparent material. Heating is performed in a state in which the welding step of pressing the second resin member against the welding portion and the welding portion of the first resin member pressed against the welding portion of the second resin member by the pressing jig. A heating step of softening at least one of the welded portion of the first resin member or the welded portion of the second resin member to bring the welded portions into close contact with each other, and suppressing the irradiation light from a light source. Ingredients And a welding step of passing through the first resin member and irradiating the welded portion of the second resin member to weld the first resin member and the second resin member. To do.
従って、押さえ治具による押さえ作業の前に溶着部を加熱する発熱体を第2の樹脂部材に対して離接する方向へ移動する必要がなく、発熱体による加熱作業と押さえ治具による押さえ作業とを連続して行うことができ、作業性の向上を図った上で第1の樹脂部材と第2の樹脂部材の溶着による良好な接合性を確保することができる。 Therefore, it is not necessary to move the heating element for heating the welded portion in the direction of separating from the second resin member before the pressing work by the pressing jig, and the heating work by the heating element and the pressing work by the pressing jig Thus, good workability can be ensured by welding the first resin member and the second resin member while improving workability.
請求項5に記載した発明にあっては、前記溶着工程の後工程として、加熱することにより前記第1の樹脂部材と前記第2の樹脂部材をアニールするアニール工程を備えたので、溶着工程に連続してアニール工程を行うことができ、アニール工程を行うための専用の設備が必要とならず、製造コストの低減を図ることができる。
In the invention described in
以下に、本発明光線溶着装置及び光線溶着方法を実施するための最良の形態について添付図面を参照して説明する。 The best mode for carrying out the beam welding apparatus and the beam welding method of the present invention will be described below with reference to the accompanying drawings.
光線溶着装置1は光源2と押さえ治具3を備えている(図1参照)。 The beam welding device 1 includes a light source 2 and a holding jig 3 (see FIG. 1).
光源2は照射光線R、例えば、レーザー光を出射する。 The light source 2 emits irradiation light R, for example, laser light.
押さえ治具3は、図示しない設備に支持されている。押さえ治具3は第1の樹脂部材100を第2の樹脂部材200に押し付ける役割を果たす。
The
第1の樹脂部材100は、第2の樹脂部材200との溶着時に光源2から出射される照射光線Rに対して透過性を有する樹脂材料、例えば、アクリルやポリカーボネート等の透明な材料によって形成されている。第1の樹脂部材100は、例えば、ランプボデイの開口面を閉塞するレンズ(アウターレンズ)であるが、ランプボデイの内部に配置される灯具ユニットを構成するインナーレンズ、所定の部材を遮蔽して見栄えの向上等を図るエクステンション、所定の各部が取り付けられるブラケット等であってもよい。
The
第2の樹脂部材200は、第1の樹脂部材100より照射光線Rに対して透過性が小さく吸収性を有する樹脂材料、例えば、ABS(acrylonitrile butadiene styrene)樹脂、ポリカーボネート、ポリエーテルイミド、ASA(Acrylonitrile Styrene Acrylate)樹脂等によって形成されている。第2の樹脂部材200は、例えば、ランプボデイであるが、エクステンションや所定の各部が取り付けられるブラケット等であってもよい。
The
第1の樹脂部材100の外周部は第2の樹脂部材200の外周部に溶着によって接合される部分であり、第1の樹脂部材100の外周部における第2の樹脂部材200に接合される部分は溶着部101として形成され、第2の樹脂部材200の外周部における第1の樹脂部材100に接合される部分は溶着部201として形成されている。
The outer peripheral part of the
第1の樹脂部材100と第2の樹脂部材200の溶着時に光源2から出射される照射光線Rは、400nm乃至1600nmの波長を有する光線であり、レーザー光のような単一波長の光線や白熱球から出射される複数波長の光線をも含む。照射光線Rを出射する光源2としては、例えば、単一のレーザー光源、複数のレーザー光源、レーザー光源と白熱球の光源との組み合わせ、レーザー光源とハロゲンランプの光源との組み合わせ等が用いられる。
The irradiation light R emitted from the light source 2 when the
従って、第1の樹脂部材100は上記のような400nm乃至1600nmの波長を有する照射光線Rに対して透過性を有する樹脂材料によって形成され、第2の樹脂部材200は上記のような400nm乃至1600nmの波長を有する照射光線Rに対して吸収性を有する樹脂材料によって形成されている。
Therefore, the
押さえ治具3は、上下方向へ移動可能とされている。押さえ治具3は、例えば、第1の樹脂部材100の形状に対応して稍湾曲された扁平な形状に形成され、ガラス材料、例えば、石英ガラスによって形成され、光源2から出射されるレーザー光に対して高い透過性を有している。
The holding
押さえ治具3の厚み方向における一方の面には発熱体4が設けられている。
A heating element 4 is provided on one surface in the thickness direction of the
発熱体4は、例えば、インジウム酸化物とスズ酸化物の混合物によって形成された透明導電膜であり、光源2から出射されるレーザー光に対して高い透過性を有している。発熱体4は、例えば、ランプボデイである第2の樹脂部材200の開口縁の形状に対応して環状に形成されている。
The heating element 4 is a transparent conductive film formed of, for example, a mixture of indium oxide and tin oxide, and has high transparency to the laser light emitted from the light source 2. The heating element 4 is formed in an annular shape corresponding to the shape of the opening edge of the
押さえ治具3には発熱体(透明導電膜)4に通電を行うための一対の電極5、5が設けられ、該電極5、5の一部はそれぞれ発熱体4に接続されている。電極5、5は、例えば、押さえ治具3の外周面に設けられている。
The holding
押さえ治具3の下方には受け台6が配置されている。受け台6は第2の樹脂部材200を受ける上方に開口された受け凹部6aを有している。
A cradle 6 is disposed below the holding
以下に、第1の樹脂部材100と第2の樹脂部材200を溶着する光線溶着方法における作業工程について説明する(図2乃至図5参照)。
Below, the work process in the light beam welding method which welds the
先ず、受け台6の受け凹部6aに第2の樹脂部材200を載置し、該第2の樹脂部材200上に第1の樹脂部材100を載置する。第2の樹脂部材200上に第1の樹脂部材100を載置することにより、第1の樹脂部材100の溶着部101が第2の樹脂部材200の溶着部201に突き当てられる(図2参照)。
First, the
このとき第1の樹脂部材100と第2の樹脂部材200の成形精度によっては、溶着部101と溶着部201の間に隙間Sが生じている場合がある。従って、次に、隙間Sを消失させる以下の作業が行われる。
At this time, depending on the molding accuracy of the
第1の樹脂部材100を押さえ治具3によって第2の樹脂部材200に押し付ける(押付工程)(図3参照)。このとき第1の樹脂部材100に押さえ治具3に設けられた発熱体4が接する。
The
次いで、電極5、5を介して発熱体4に通電を行い該発熱体4を発熱させて加熱を行う(加熱工程)。発熱体4が発熱すると、発生した熱が第1の樹脂部材100に伝達されて該第1の樹脂部材100の溶着部101が軟化する。発熱体4に発生した熱は第1の樹脂部材100を介して第2の樹脂部材200の溶着部201にも伝達される可能性があり、この場合には第2の樹脂部材200の溶着部201も軟化する。
Next, the heating element 4 is energized through the
発熱体4によって加熱されたときの第1の樹脂部材100の溶着部101の温度は、ガラス転移温度以上、荷重たわみ温度未満になるようにされている。従って、溶着部101を溶融することなく軟化させてゴム状の弾性を有する状態とすることができる。
The temperature of the welded
このとき発熱体4の発熱に伴って該発熱体4からは、例えば、2.5μm〜30μmの波長領域の赤外光が発せられる。赤外光は第1の樹脂部材100又は第2の樹脂部材200に吸収されるが、例えば、ポリカーボネート等によって形成された第1の樹脂部材100には主に遠赤外光が吸収され、ABS樹脂等によって形成された第2の樹脂部材200には主に近赤外光が吸収される。従って、第1の樹脂部材100の溶着部101及び第2の樹脂部材200の溶着部201は、発熱体4の発熱に伴って発せられる赤外光によっても軟化され得る。
At this time, the heat generating element 4 emits infrared light in a wavelength region of, for example, 2.5 μm to 30 μm as the heat generating element 4 generates heat. Infrared light is absorbed by the
発熱体4の発熱時には、上記したように、押さえ治具3によって第1の樹脂部材100が第2の樹脂部材200に押し付けられているため、溶着部101、201が軟化に伴って密着される。このとき、上記したように、発熱体4からは2.5μm〜30μmの波長領域の赤外光が発せられ、第1の樹脂部材100の溶着部101及び第2の樹脂部材200の溶着部201が赤外光によっても軟化され得るため、加熱と赤外光による溶着部101、201の軟化により溶着部101と溶着部201の密着性の向上を図ることができる。
When the heating element 4 generates heat, the
次いで、光源2から照射光線Rを出射し押さえ部材3及び第1の樹脂部材100を透過させて第2の樹脂部材200の溶着部201に照射する(図5参照)。照射光線Rによって第1の樹脂部材100の溶着部101と第2の樹脂部材200の溶着部201が溶融されて両者が溶着される(溶着工程)。
Next, the irradiation light R is emitted from the light source 2, passes through the
照射光線Rは溶着部101、201の形状(環状)に沿って照射され、第1の樹脂部材100の溶着部101と第2の樹脂部材200の溶着部201の全面が溶着される。
The irradiation light R is irradiated along the shape (annular shape) of the welded
次に、上記した溶着工程の後工程として、第1の樹脂部材100と第2の樹脂部材200を加熱することによりアニールするアニール工程を行う。具体的には、溶着後の冷却速度を低下させるために第1の樹脂部材100と第2の樹脂部材200に対する加熱量を順次低減する作業を行う。アニール工程を行うことにより、第1の樹脂部材100及び第2の樹脂部材200の溶着後における歪みの発生を防止することができる。
Next, as a step after the above-described welding step, an annealing step is performed in which the
上記したように、押さえ治具3によって第1の樹脂部材100を第2の樹脂部材200に押し付けた状態において、溶着工程に連続してアニール工程を行うことにより、アニール工程を行うための専用の設備が必要とならず、製造コストの低減を図ることができる。
As described above, in the state in which the
最後に、押さえ治具3を第1の樹脂部材100から上方へ離隔して第1の樹脂部材100に対する押圧を解除し、溶着によって接合された第1の樹脂部材100と第2の樹脂部材200を受け台6から取り出す。
Finally, the
以上に記載した通り、光線溶着装置1にあっては、押さえ治具3によって第1の樹脂部材100を第2の樹脂部材200に押し付けた状態で溶着部101、201を軟化させて密着し第1の樹脂部材100と第2の樹脂部材200を溶着するようにしているため、押さえ治具3による押さえ作業の前に溶着部201を加熱する発熱体を第2の樹脂部材200に対して離接する方向へ移動する必要がなく、発熱体4による加熱作業と押さえ治具3による押さえ作業とを連続して行うことができ、作業性の向上を図った上で第1の樹脂部材100と第2の樹脂部材200の溶着による良好な接合性を確保することができる。
As described above, in the beam welding apparatus 1, the
また、第1の樹脂部材100と第2の樹脂部材200の溶着前に溶着部101、201を軟化させて密着するようにしているため、溶着部101、201の精度の高い面圧管理や第1の樹脂部材100及び第2の樹脂部材200の高精度の設計を必要とせず、車輌用灯具の製造コストの低減を図ることができる。
In addition, since the welded
さらに、溶着部101、201の間に隙間が生じた状態で溶着時に照射光線Rが照射された場合には、照射光線Rによって加熱された溶着部201から溶着部101への良好な熱伝達が行われず、溶着部201の温度上昇が大きくなり白色の泡が生じて溶着部位の見栄えの低下を来たすおそれがあるが、光線溶着装置1にあっては、第1の樹脂部材100と第2の樹脂部材200の溶着前に溶着部101、201を軟化させて密着するようにしているため、白色の泡の発生を防止して車輌用灯具の見栄えの向上を図ることができる。
Furthermore, when the irradiation light R is irradiated at the time of welding in a state where a gap is generated between the
加えて、第1の樹脂部材100と第2の樹脂部材200の溶着前に溶着部101、201を軟化させて密着するようにしているため、溶着部101、201間に隙間Sが存在していた場合においても、隙間Sの1/100mm単位での消失を行うことが可能となる。
In addition, since the welded
尚、上記には、押さえ治具3を石英ガラスによって形成した例を示したが、押さえ治具3は発熱体4から発生する熱の影響を受けない範囲でガラス材料によって形成されていればよく、例えば、押さえ治具3の少なくとも発熱体4が設けられた部分がガラス材料によって形成されていればよい。
In addition, although the example which formed the holding
また、発熱体4に通電するための電極5、5は押さえ治具3における照射光線Rの透過範囲以外の部分の任意の位置に設けることが可能である。尚、電極5、5は少なくとも一部が発熱体4に接続されている。
In addition, the
さらに、発熱体4は、第2の樹脂部材200の溶着部201を加熱することができる位置であれば押さえ治具3の何れの位置に設けられていてもよく、第1の樹脂部材100に接する側の面における全体又は一部に設けることができる。
Furthermore, the heating element 4 may be provided at any position of the holding
上記した最良の形態において示した各部の形状及び構造は、何れも本発明を実施するに際して行う具体化のほんの一例を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されることがあってはならないものである。 The shapes and structures of the respective parts shown in the above-described best mode are merely examples of implementations in carrying out the present invention, and the technical scope of the present invention is limitedly interpreted by these. It should not be done.
1…光線溶着装置、2…光源、3…押さえ治具、4…発熱体、100…第1の樹脂部材、101…溶着部、200…第2の樹脂部材、201…溶着部 DESCRIPTION OF SYMBOLS 1 ... Beam welding apparatus, 2 ... Light source, 3 ... Holding jig, 4 ... Heat generating body, 100 ... 1st resin member, 101 ... Welding part, 200 ... 2nd resin member, 201 ... Welding part
Claims (5)
前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けると共に透明材料によって形成された押さえ治具と、
前記押さえ治具及び前記第1の樹脂部材を透過する前記照射光線を前記第2の樹脂部材の前記溶着部に照射する光源とを備え、
前記押さえ治具に、前記第1の樹脂部材に接して該第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を加熱して軟化させ前記第1の樹脂部材の前記溶着部と前記第2の樹脂部材の前記溶着部とを密着させると共に透明材料によって形成された発熱体を設けた
ことを特徴とする光線溶着装置。 A first resin member that is transparent to the irradiated light beam and provided with a welded portion, and a welded portion that is less transmissive to the irradiated light beam than the first resin member is provided. A beam welding apparatus for welding the second resin member with the irradiation beam,
A pressing jig formed of a transparent material while pressing the welded portion of the first resin member against the welded portion of the second resin member;
A light source that irradiates the welding portion of the second resin member with the irradiation light beam that passes through the pressing jig and the first resin member;
The first resin is made to soften by heating at least one of the welded portion of the first resin member or the welded portion of the second resin member in contact with the first resin member. A beam welding apparatus comprising: a heat generating member formed of a transparent material while bringing the welding portion of the member into close contact with the welding portion of the second resin member.
ことを特徴とする請求項1に記載の光線溶着装置。 2. The beam welding apparatus according to claim 1, wherein a temperature of the welding portion of the first resin member heated by the heating element is equal to or higher than a glass transition temperature and lower than a deflection temperature under load.
前記赤外光の波長領域を2.5μm以上30μm以下とした
ことを特徴とする請求項1又は請求項2に記載の光線溶着装置。 So as to emit infrared light from the heating element,
3. The beam welding apparatus according to claim 1, wherein a wavelength region of the infrared light is 2.5 μm or more and 30 μm or less.
透明材料によって形成された押さえ治具を用いて前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付ける押付工程と、
前記押さえ治具によって前記第1の樹脂部材の前記溶着部を前記第2の樹脂部材の前記溶着部に押し付けた状態において、加熱することにより前記第1の樹脂部材の前記溶着部又は前記第2の樹脂部材の前記溶着部の少なくとも一方を軟化させて前記溶着部同士を密着する加熱工程と、
光源から前記照射光線を前記押さえ治具及び前記第1の樹脂部材を透過させて前記第2の樹脂部材の前記溶着部に照射し前記第1の樹脂部材と前記第2の樹脂部材を溶着する溶着工程とを備えた
ことを特徴とする光線溶着方法。 A first resin member that is transparent to the irradiated light beam and provided with a welded portion, and a welded portion that is less transmissive to the irradiated light beam than the first resin member is provided. A light welding method for welding the second resin member with the irradiation light,
A pressing step of pressing the welded portion of the first resin member against the welded portion of the second resin member using a pressing jig formed of a transparent material;
In the state where the welded portion of the first resin member is pressed against the welded portion of the second resin member by the pressing jig, the welded portion or the second of the first resin member is heated by heating. A heating step of softening at least one of the welded portions of the resin member and bringing the welded portions into close contact with each other;
The irradiation light beam is transmitted from the light source through the pressing jig and the first resin member to irradiate the welding portion of the second resin member, thereby welding the first resin member and the second resin member. A light welding method comprising: a welding step.
ことを特徴とする請求項4に記載の光線溶着方法。 The beam welding method according to claim 4, further comprising an annealing step of annealing the first resin member and the second resin member by heating as a subsequent step of the welding step.
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