JP4104073B2 - レーザを用いた部材の接合方法及び接合形成認識装置 - Google Patents
レーザを用いた部材の接合方法及び接合形成認識装置 Download PDFInfo
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- JP4104073B2 JP4104073B2 JP2004350252A JP2004350252A JP4104073B2 JP 4104073 B2 JP4104073 B2 JP 4104073B2 JP 2004350252 A JP2004350252 A JP 2004350252A JP 2004350252 A JP2004350252 A JP 2004350252A JP 4104073 B2 JP4104073 B2 JP 4104073B2
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- laser beam
- semiconductor laser
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- laser light
- joining
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- 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
- B29C66/7426—Tin or alloys of tin
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
- B29C66/7461—Ceramics
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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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- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
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- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
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Description
長谷川達也,他,「レーザによる熱可塑性プラスチックのラップ接合」,日本機械学会論文集(C編),日本機械学会発行,2001年9月,第67巻,第611号,pp.2997−3001 船山 強,他,「YAGレーザによるガラス基板のマイクロ接合法(第1報)−レーザ透過性を利用したガラス界面の接合法の提案とその可能性検証−」,精密工学会誌,精密工学会発行,2002年9月,第68巻,第9号,pp.1231−1235
実施例2においては、レーザとして半導体レーザに代えて、YAG(イットリウム・アルミニウム・ガーネット)レーザを用いて板材間の接合を行ったものである。照射するYAGレーザの条件としては、波長1060nm、出力10〜150W、連続発振、ビームモードTEM00(ガウス分布)であり、照射点スポット径10,20mmであり、レーザの走査は行われていない。第1板材と第2板材の組み合わせについては、表2に示すように、No.1:透明アクリル−透明アクリル(SB)であり、比較例として樹脂同士の組合せがNo.4:ポリカーボネート−黒色アクリル(SB)、No.5:アセタール樹脂−黒色アクリル(SB)、の2種類であり、比較例として樹脂と金属の組合せがNo.2:透明アクリル−スズ(SB)、No.3:透明アクリル−アルミ(SB)の2種類である。なお、表2において、SBはサンドブラスト処理を境界面に施したことを表す。
参考例2においては、金属とガラスあるいはフッ化樹脂、ガラス同士のような、境界面を凹凸状態にするのみではレーザによる接合が困難な板状の第1部材と第2部材に対して、両者の境界面にフェノール、エポキシ、ポリエステル等の熱硬化性樹脂製の接着剤を塗布した接合層を設けるようにしたものである。これにより、境界面で吸収された半導体レーザ光又はYAGレーザ光によって接合層を硬化させることにより、凹凸状態にされた境界面の状態と合わせて、接合形成の困難な材料同士である第1及び第2部材との間の接合を形成することができる。なお、照射するレーザとしては、半導体レーザでもYAGレーザでも照射条件の調整により接合の形成が可能である。
Claims (3)
- 互いに重ね合わされた半導体レーザ光又はYAGレーザ光を透過する材質で形成された第1部材及び第2部材の境界面に半導体レーザ光又はYAGレーザ光を照射することにより該第1及び第2部材間を接合させる接合方法であって、
前記半導体レーザ光又はYAGレーザ光の照射前に、前記第1及び第2部材の少なくとも一方の境界面が、該半導体レーザ光又はYAGレーザ光を吸収可能なように凹凸状態にされており、該半導体レーザ光又はYAGレーザ光の吸収によって前記第1部材及び/又は第2部材を溶融あるいは軟化させることにより、該第1及び第2部材間を接合させると共に、該溶融あるいは軟化により該第1部材と第2部材の接合部分を透明にさせることを特徴とするレーザを用いた部材の接合方法。 - 前記透明となった接合部分を透過した半導体レーザ光又はYAGレーザ光を光検知手段によって検知することにより、前記第1部材と第2部材の接合形成を認識できるようにしたことを特徴とする前記請求項1に記載のレーザを用いた部材の接合方法。
- 半導体レーザ光又はYAGレーザ光を透過する材質で形成された第1部材及び第2部材が互いに重ね合わされ、該第1及び第2部材の少なくとも一方の境界面が、予め半導体レーザ光又はYAGレーザ光を吸収可能なように凹凸状態にされており、該半導体レーザ光又はYAGレーザ光を照射することにより、前記境界面において該半導体レーザ光又はYAGレーザ光が吸収されて前記第1部材及び/又は第2部材が境界面において溶融あるいは軟化して該第1及び第2部材間に接合が形成されると共に、該溶融あるいは軟化により該第1部材と第2部材の接合部分が透明になる接合加工物の接合形成において、透明となった接合部分を透過した半導体レーザ光又はYAGレーザ光を検知することにより、前記第1部材と第2部材の接合形成を認識できるようにしたことを特徴とする接合形成認識装置。
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