JP2009113314A - 樹脂材のレーザー溶着方法 - Google Patents
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- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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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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- 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
- B29C65/1606—Ultraviolet [UV] radiation, e.g. by ultraviolet excimer lasers
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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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- 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
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- 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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
- B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
- B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
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- 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
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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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
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- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- 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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Abstract
【解決手段】 頂点が光透過性樹脂材製蓋22に接する突条23を光吸収性の側壁20の上端面21A、21Bに形成する。突条23の高さを0.03〜0.08mmに制限する。これにより、クラックを減らして溶着不良率を低減することができる。
【選択図】 図1
Description
本発明は、上記問題点に鑑みなされたものであり、光透過性樹脂材を光吸収性樹脂材の突条に押しつけつつ溶着させる樹脂材のレーザー溶着方法の歩留まりを向上することをその目的としている。
上記問題を解決する第1発明の樹脂材のレーザー溶着方法は、光吸収性樹脂材の溶着予定面から突出する三角形断面の突条の頂点に光透過性樹脂材の溶着予定面を押圧しつつ前記光透過性樹脂材を通じて走査レーザー光を前記突条に照射して少なくとも前記突条を溶融させることにより前記両溶着予定面を溶着させる樹脂材のレーザー溶着方法において、前記走査レーザー光照射前の前記押圧により、前記光吸収性樹脂材の前記突条の頂点と、前記頂点から所定距離離れた前記光吸収性樹脂材の溶着予定面の所定領域との少なくとも2点に前記光透過性樹脂材の溶着予定面を接触させ、前記突条の高さは、前記走査レーザー光照射前の前記押圧による前記光透過性樹脂材の変形が走査レーザー光照射時の前記光透過性樹脂材の引っ張り強度限界内となる値に設定されることを特徴としている。
上記問題を解決する第2発明の樹脂材のレーザー溶着方法は、光吸収性樹脂材の溶着予定面から突出する三角形断面の突条の頂点に光透過性樹脂材の溶着予定面を押圧しつつ前記光透過性樹脂材を通じて走査レーザー光を前記突条に照射して少なくとも前記突条を溶融させることにより前記両溶着予定面を溶着させる樹脂材のレーザー溶着方法において、前記走査レーザー光照射前の前記押圧により前記光透過性樹脂材を前記光透過性樹脂材の溶着予定面に向けて曲げることにより、前記光吸収性樹脂材の溶着予定面の前記突条の頂点近傍領域のうち前記光透過性樹脂材の先端側の領域を前記光吸収性樹脂材の溶着予定面に面接触させ、前記突条の高さは、前記走査レーザー光照射前の前記押圧による前記光透過性樹脂材の変形が走査レーザー光照射時の前記光透過性樹脂材の引っ張り強度限界内となる値に設定されることを特徴としている。
本発明の突条断面形状による上記効果の発生理由についての本発明者の分析を以下に記載する。
好適態様において、光吸収性樹脂材の溶着予定面に設ける三角突条の高さhを0.03〜0.08mm、底辺幅bを1.0〜2.0mmとされる。このようにすれば、既述した本出願人の従来の突条断面形状を採用した場合に比べて格段に溶不良を低減することができることが実験により実証された。
図1における三角形の突条23の頂点Poを突条23の底辺の幅方向中央よりも押さえ治具26側にシフトする構造は、突条23の頂点Poと押さえ治具26の先端Yとの間の距離Pを減少するため、光透過性樹脂材製蓋22に加えられる曲げモーメントを減らしてそれによるクラック発生防止に大きな効果があることは明白である。したがって、上記した寸法条件に限定されることなく、三角形の突条23の頂点Poを突条23の底辺の幅方向中央よりも押さえ治具26側にシフトする構造は、本発明の異なる独立形態と見なすことができる。
また、図1における突条23の高さhが小さいであれば、突条23の頂点Poが突条23の幅方向中央よりも押さえ治具26の反対側(図1の内側)にシフトしても、光透過性樹脂材製蓋22に加えられる曲げモーメントを小さくできるため、クラック発生防止を達成する事ができるため、これも本発明に含まれるとみなすことができる。
21 上端面
21A 上端面
21B 上端面
22 光透過性樹脂材製蓋
23 突条
24 リブ
25 外周面
26 押さえ治具
27 レーザー光(走査レーザー光)
29 溶着予定面
Claims (4)
- 光吸収性樹脂材の溶着予定面から突出する三角形断面の突条の頂点に光透過性樹脂材の溶着予定面を押圧しつつ前記光透過性樹脂材を通じて走査レーザー光を前記突条に照射して少なくとも前記突条を溶融させることにより前記両溶着予定面を溶着させる樹脂材のレーザー溶着方法において、
前記走査レーザー光照射前の前記押圧により、前記光吸収性樹脂材の前記突条の頂点と、前記頂点から所定距離離れた前記光吸収性樹脂材の溶着予定面の所定領域との少なくとも2点に前記光透過性樹脂材の溶着予定面を接触させ、
前記突条の高さは、前記走査レーザー光照射前の前記押圧による前記光透過性樹脂材の変形が走査レーザー光照射時の前記光透過性樹脂材の引っ張り強度限界内となる値に設定されることを特徴とする樹脂材のレーザー溶着方法。 - 光吸収性樹脂材の溶着予定面から突出する三角形断面の突条の頂点に光透過性樹脂材の溶着予定面を押圧しつつ前記光透過性樹脂材を通じて走査レーザー光を前記突条に照射して少なくとも前記突条を溶融させることにより前記両溶着予定面を溶着させる樹脂材のレーザー溶着方法において、
前記走査レーザー光照射前の前記押圧により前記光透過性樹脂材を前記光透過性樹脂材の溶着予定面に向けて曲げることにより、前記光吸収性樹脂材の溶着予定面の前記突条の頂点近傍領域のうち前記光透過性樹脂材の先端側の領域を前記光吸収性樹脂材の溶着予定面に面接触させ、
前記突条の高さは、前記走査レーザー光照射前の前記押圧による前記光透過性樹脂材の変形が走査レーザー光照射時の前記光透過性樹脂材の引っ張り強度限界内となる値に設定されることを特徴とする樹脂材のレーザー溶着方法。 - 請求項1記載の樹脂材のレーザー溶着方法において、
前記光透過性樹脂材の押圧は、前記突条の頂点から前記光透過性樹脂材の先端側に所定距離Pだけ離れた位置から前記光透過性樹脂材の先端までの前記光透過性樹脂材を、押さえ治具により前記光吸収性樹脂材の溶着予定面に向けて付勢することによりなされる樹脂材のレーザー溶着方法。 - 請求項1乃至3のいずれか記載の樹脂材のレーザー溶着方法において、
前記突条の高さhは、0.03〜0.08mm、前記突条の底辺幅bは、2.5〜3.5mmに設定される樹脂材のレーザー溶着方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2007288251A JP4678021B2 (ja) | 2007-11-06 | 2007-11-06 | 樹脂材のレーザー溶着方法 |
DE200810052732 DE102008052732A1 (de) | 2007-11-06 | 2008-10-22 | Laserstrahl-Schweißverfahren und Befestigungskonstruktion für ein Lichtabsorptionsharz-Schweißteil und lichtdurchlässiges Harzteil |
US12/290,743 US8293060B2 (en) | 2007-11-06 | 2008-11-03 | Laser beam welding method and mounting structure for welding light-absorption resin member and translucent resin member |
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Cited By (3)
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JP2013159073A (ja) * | 2012-02-07 | 2013-08-19 | Canon Inc | 熱可塑性樹脂の熱溶着装置および方法 |
WO2015022933A1 (ja) * | 2013-08-15 | 2015-02-19 | 旭化成ケミカルズ株式会社 | 接合体及び接合方法 |
JP2016153239A (ja) * | 2016-03-31 | 2016-08-25 | キヤノン株式会社 | 蓋が接合された容器の製造方法 |
Families Citing this family (3)
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FR2969029B1 (fr) * | 2010-12-16 | 2016-08-05 | Renault Sa | Agencement de deux pieces en materiaux thermoplastiques destinees a etre assemblees par soudage laser |
JP5911199B2 (ja) * | 2011-03-22 | 2016-04-27 | 株式会社小糸製作所 | 溶着方法及び溶着装置 |
JP6341637B2 (ja) * | 2013-06-14 | 2018-06-13 | 三菱電機株式会社 | 遠心送風機の製造方法 |
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JP2004216839A (ja) * | 2003-01-17 | 2004-08-05 | Matsushita Electric Works Ltd | レーザーによる熱可塑性樹脂の接合方法及び接圧治具 |
JP2006258508A (ja) * | 2005-03-15 | 2006-09-28 | Sumitomo Bakelite Co Ltd | プラスチック部材の接合方法、及びその方法を使用して製造されたバイオチップ及びマイクロ分析チップ |
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JP2004358697A (ja) | 2003-06-02 | 2004-12-24 | Denso Corp | 樹脂製品の製造方法 |
JP4506203B2 (ja) | 2004-02-27 | 2010-07-21 | 株式会社デンソー | 樹脂部材の継手構造、レーザ溶着方法及び電気機器の樹脂筐体 |
JP2005288934A (ja) | 2004-04-01 | 2005-10-20 | Denso Corp | 樹脂材のレーザ溶着方法 |
JP2007210165A (ja) | 2006-02-08 | 2007-08-23 | Denso Corp | レーザー光を用いた樹脂の溶着方法及び溶着装置 |
JP4702183B2 (ja) | 2006-05-29 | 2011-06-15 | 株式会社デンソー | レーザ溶着方法 |
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JP2004216839A (ja) * | 2003-01-17 | 2004-08-05 | Matsushita Electric Works Ltd | レーザーによる熱可塑性樹脂の接合方法及び接圧治具 |
JP2006258508A (ja) * | 2005-03-15 | 2006-09-28 | Sumitomo Bakelite Co Ltd | プラスチック部材の接合方法、及びその方法を使用して製造されたバイオチップ及びマイクロ分析チップ |
Cited By (4)
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JP2013159073A (ja) * | 2012-02-07 | 2013-08-19 | Canon Inc | 熱可塑性樹脂の熱溶着装置および方法 |
WO2015022933A1 (ja) * | 2013-08-15 | 2015-02-19 | 旭化成ケミカルズ株式会社 | 接合体及び接合方法 |
JPWO2015022933A1 (ja) * | 2013-08-15 | 2017-03-02 | 旭化成株式会社 | 接合体及び接合方法 |
JP2016153239A (ja) * | 2016-03-31 | 2016-08-25 | キヤノン株式会社 | 蓋が接合された容器の製造方法 |
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US8293060B2 (en) | 2012-10-23 |
US20090115111A1 (en) | 2009-05-07 |
JP4678021B2 (ja) | 2011-04-27 |
DE102008052732A1 (de) | 2009-08-06 |
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