JP5503083B2 - 樹脂接合体及びその製造方法 - Google Patents
樹脂接合体及びその製造方法 Download PDFInfo
- Publication number
- JP5503083B2 JP5503083B2 JP2013517497A JP2013517497A JP5503083B2 JP 5503083 B2 JP5503083 B2 JP 5503083B2 JP 2013517497 A JP2013517497 A JP 2013517497A JP 2013517497 A JP2013517497 A JP 2013517497A JP 5503083 B2 JP5503083 B2 JP 5503083B2
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- JP
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- Prior art keywords
- resin member
- resin
- laser light
- predetermined range
- welding
- 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.)
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Links
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Images
Classifications
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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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
- B29C66/71—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 composition of the plastics material 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
- 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
- B29C66/72—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 structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
- B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
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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
- B29C66/731—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 intensive physical properties of the material of the parts to be joined
- B29C66/7311—Thermal properties
- B29C66/73115—Melting point
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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
- B29C66/7332—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 coloured
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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
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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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- B29C66/80—General aspects of machine operations or constructions and parts thereof
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Description
溶着の終点が溶着の始点を越えた所定位置となるように、始点から終点に至る溶着部位が、他の溶着部位より1回多く溶着された溶着オーバラップ部位を有する樹脂接合体の製造方法において、
前記第2樹脂部材における溶着予定部位のうちの所定範囲を、この所定範囲以外よりもレーザ光の透過性が低いレーザ光低透過性部位として形成しておき、
前記溶着オーバラップ部位が、該レーザ光低透過性部位をなす前記所定範囲において存在するように、前記第1樹脂部材と前記第2樹脂部材とを溶着することを特徴とする。
請求項3に記載の発明は、前記第2樹脂部材は、強化繊維を含有して射出成形で形成されたものであることを特徴とする請求項1又は2のいずれか1項に記載の樹脂接合体の製造方法である。
請求項5に記載の発明は、前記第2樹脂部材における前記レーザ光低透過性部位をなす前記所定範囲が、この所定範囲以外よりも、レーザ光の入射面が粗面化されることで形成されていることを特徴とする請求項1又は2のいずれか1項に記載の樹脂接合体の製造方法である。
溶着の終点が溶着の始点を越えた所定位置となるように、始点から終点に至る溶着部位が、他の溶着部位より1回多く溶着された溶着オーバラップ部位を有する樹脂接合体において、
前記第2樹脂部材における溶着予定部位のうちの所定範囲が、この所定範囲以外よりもレーザ光の透過性が低いレーザ光低透過性部位として形成されており、
前記溶着オーバラップ部位が、該レーザ光低透過性部位をなす前記所定範囲において存在してなることを特徴とする。
本発明を具体化した第1実施形態例について、図1〜図3を参照しながら詳細に説明する。ただし、本例で製造される樹脂接合体10は、図1に示したように、レーザ光の吸収性を有する第1樹脂部材が、上方を開口する平面視、略矩形のケース本体11(第1樹脂部材11)であり、レーザ光の透過性を有する第2樹脂部材がその開口を塞ぐよう、平面視、略矩形をなし、平板状に形成された蓋21(第2樹脂部材21)とからなるものである。すなわち、本例では、この蓋21をその外周縁寄り面(裏面)23がケース本体(第1樹脂部材)11の底板13の外周縁から立ち上がる側壁15の上端面17に当接するようにして位置決めした後、図2に示したように、その当接面において、蓋21の外周縁(ケース本体11の開口)に沿って、点線111で示したように周回状にレーザ溶着して、その当接面間をシール状に接合してなる接合体10を製造する場合で説明する。
この測定に使用した試料は次のようである。引き剥がした第2樹脂部材(蓋21)について、図4中に、破線で示したように、平面視、その矩形の各辺(4辺)に沿う中間部位において、辺に沿う一定の長さ(L1)で、溶着軌道(溶着部位111)を含む一定幅で矩形に切り取り、4つの試料片TP−1、TP−2、TP−3、TP−4とした。このうち、試料片TP−1をなすのは、溶着オーバラップ部位112、すなわち、レーザ光の低透過性部位である。ただし、試料は、その溶着面側を所定量(全試料中の溶着痕の最大深さ以上の厚みで同一量:0.2mm)切削、及び研磨(研削)して、溶着時に溶融された部位などの溶着痕を除去した一定厚さのものである。これにより、各試料TP−1〜TP−4は、溶着痕の除去後の一定の厚さとした残厚部からなるものである。
図5に示したようにパワーメータ(レーザ出力測定器)200における測定面(図示上面の受光面)205に、試料支持用の細長いブロック片(ジグ)240を、平面視、平行配置で置き、この両ブロック片240上に、各試料を両端支持状態で載置し、測定面205の中央を跨ぐ配置となるようにした。なお、測定面205からブロック片240の上面までの寸法H1は、15mmとした。この状態で試料を仮置し、上方から試料の上面にレーザ光Laの焦点(距離)H2がくるように、レーザ光照射ヘッド101の位置を設定した。この設定後、仮置きした試料を、一旦、別の位置に置き、試料の無い状態で、所定の低出力、短時間(例えば、5W5s)でレーザLaを、パワーメータ200の測定面205に複数回(例えば、5回)照射して、試料を透過させないときの出力の平均値(A1)を算出した。なお、出力測定用のパワーメータ200は、1/100桁以上、表示可能なものとするのが望ましい。また、レーザ出力、照射時間は、試料への照射時に、照射部位が焦げないような設定値とした。
次に、各試料TP−1〜TP−4を、両ブロック片240上に、順次、両端支持状態で載置し、それぞれ、試料の無い状態でのレーザ光の照射をしたのと同一条件の出力、及び照射時間で、試料にレーザ光Laを照射し、上記したのと同様にして出力の平均値(A2)を算出した。そして、各試料ごと、得られた出力の平均値(A2)に基づき、試料を透過させないときの出力の平均値(A1)から、各試料TP−1〜TP−4についてのレーザ光の透過率T(%)=(A2/A1)×100を算出し、溶着後の第2樹脂部材(蓋21)における各部位のレーザ光の透過率を割り出した。
その結果は、所定範囲(破線ハッチング領域)L1をなしていた試料片TP−1における透過率は、それ以外の部位をなしていた試料片TP−2、TP−3、TP−4における透過率より、5〜10%低いものであり、これは溶着前と同程度の低さであった。また、所定範囲(破線ハッチング領域)L1をなしていた試料片TP−1自体における溶着オーバラップ部位112の溶着軌道に沿う透過率も、溶着前と同様、その長さL1におけるその中間位置P1が一番、透過率が低く、そこから所定範囲L1における各端S1,F1に向かうに従って透過率が上昇していた。なお、溶着する前の第2樹脂部材についても、前記したのと同様に切断、研磨(研削)して同じ残厚部とした試料を作り、前記各試料TP−1〜TP−4と同様にして、透過率を測定、算出した。結果は、溶融された部位を除去した前記各試料TP−1〜TP−4の透過率と略同じであった。このことは、第2樹脂部材は、レーザ溶着の前後において、透過率が変化しないことを意味している。
さて次に、本発明を具体化した第2実施例について、図6、図7に基づいて説明する。ただし、この第2実施形態例はレーザ光透過性を有する第2樹脂部材21のうち、レーザ光低透過性部位をなす上記所定範囲L1を、上記例とは別手段で形成した点のみが、製法も含めて相違するだけである。したがって、その第2樹脂部材21をなす蓋21における低透過性部位のみについてのみ説明し、同一部位には同一の符号を付すにとめ、詳細な説明は省略する。以下、同様とする。
11 第1樹脂部材
21 第2樹脂部材
101 レーザ光ヘッド
111 溶着部位
112 溶着オーバラップ部位(始点から終点に至る溶着部位)
S2 溶着の始点
F2 溶着の終点
Claims (7)
- レーザ光の吸収性を有する第1樹脂部材と、レーザ光の透過性を有する第2樹脂部材とを接触させ、第2樹脂部材側からレーザ光を照射してライン状に溶着することによって製造される樹脂接合体の製造方法であって、
溶着の終点が溶着の始点を越えた所定位置となるように、始点から終点に至る溶着部位が、他の溶着部位より1回多く溶着された溶着オーバラップ部位を有する樹脂接合体の製造方法において、
前記第2樹脂部材における溶着予定部位のうちの所定範囲を、この所定範囲以外よりもレーザ光の透過性が低いレーザ光低透過性部位として形成しておき、
前記溶着オーバラップ部位が、該レーザ光低透過性部位をなす前記所定範囲において存在するように、前記第1樹脂部材と前記第2樹脂部材とを溶着することを特徴とする、樹脂接合体の製造方法。 - 前記溶着オーバラップ部位が、前記レーザ光低透過性部位をなす前記所定範囲の略全長にわたって存在するように、前記第1樹脂部材と前記第2樹脂部材とを溶着することを特徴とする、請求項1に記載の樹脂接合体の製造方法。
- 前記第2樹脂部材は、強化繊維を含有して射出成形で形成されたものであることを特徴とする請求項1又は2のいずれか1項に記載の樹脂接合体の製造方法。
- 前記第2樹脂部材における前記レーザ光低透過性部位をなす前記所定範囲が、この所定範囲以外よりも、レーザ光の入射面側において隆起するように厚く形成されることで、形成されていることを特徴とする請求項1又は2のいずれか1項に記載の樹脂接合体の製造方法。
- 前記第2樹脂部材における前記レーザ光低透過性部位をなす前記所定範囲が、この所定範囲以外よりも、レーザ光の入射面が粗面化されることで形成されていることを特徴とする請求項1又は2のいずれか1項に記載の樹脂接合体の製造方法。
- 前記第2樹脂部材は、前記第1樹脂部材に接触して位置決めされる際、外部から視認可能の位置決め用の目印を備えていることを特徴とする請求項1〜5のいずれか1項に記載の樹脂接合体の製造方法。
- レーザ光の吸収性を有する第1樹脂部材と、レーザ光の透過性を有する第2樹脂部材とを接触させ、第2樹脂部材側からレーザ光を照射してライン状に溶着してなる樹脂接合体であって、
溶着の終点が溶着の始点を越えた所定位置となるように、始点から終点に至る溶着部位が、他の溶着部位より1回多く溶着された溶着オーバラップ部位を有する樹脂接合体において、
前記第2樹脂部材における溶着予定部位のうちの所定範囲が、この所定範囲以外よりもレーザ光の透過性が低いレーザ光低透過性部位として形成されており、
前記溶着オーバラップ部位が、該レーザ光低透過性部位をなす前記所定範囲において存在してなることを特徴とする樹脂接合体。
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JP2011258391A (ja) * | 2010-06-08 | 2011-12-22 | Stanley Electric Co Ltd | レーザー溶着を用いた車両用灯具製造方法 |
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US20080187697A1 (en) * | 2005-03-08 | 2008-08-07 | Masaaki Amano | Structure and Method for Bonding Two Members, Gas Container and Method for Manufacturing Such Gas Container |
JP4818194B2 (ja) * | 2007-04-25 | 2011-11-16 | 浜松ホトニクス株式会社 | 樹脂溶着方法及び樹脂溶着装置 |
US20110200802A1 (en) * | 2010-02-16 | 2011-08-18 | Shenping Li | Laser Welding of Polymeric Materials |
JP2013022922A (ja) * | 2011-07-25 | 2013-02-04 | Stanley Electric Co Ltd | レーザ照射による樹脂部材の溶融接合方法 |
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JP2001246488A (ja) * | 2000-03-01 | 2001-09-11 | Tokai Rika Co Ltd | 容器の製造方法 |
JP2005231308A (ja) * | 2004-02-23 | 2005-09-02 | Denso Corp | 樹脂材のレーザ溶着方法 |
JP2011255575A (ja) * | 2010-06-08 | 2011-12-22 | Stanley Electric Co Ltd | レーザー溶着装置 |
JP2011258391A (ja) * | 2010-06-08 | 2011-12-22 | Stanley Electric Co Ltd | レーザー溶着を用いた車両用灯具製造方法 |
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CN106159538A (zh) * | 2014-09-24 | 2016-11-23 | 阿尔卑斯电气株式会社 | 插口 |
CN106159538B (zh) * | 2014-09-24 | 2018-11-09 | 阿尔卑斯电气株式会社 | 插口 |
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US9809014B2 (en) | 2017-11-07 |
KR20140062157A (ko) | 2014-05-22 |
KR101620245B1 (ko) | 2016-05-12 |
EP2762293B1 (en) | 2018-11-07 |
EP2762293A1 (en) | 2014-08-06 |
US20140255668A1 (en) | 2014-09-11 |
JPWO2013047645A1 (ja) | 2015-03-26 |
WO2013047645A1 (ja) | 2013-04-04 |
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