A study on CO2 laser welding of porous plastics assisted by heat transfer control using a sold heat sink

• Project/Area Number: 21560203
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: The University of Electro-Communications
• Principal Investigator: KUROSAKI Yasuo 電気通信大学, 産学官連携センター, 特任教授 (70016442)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: ふく射 / 熱伝導 / ヒートシンク / ポーラス樹脂 / 赤外線レーザ / CO2レーザ / 赤外線輻射加熱 / 光透過ヒートシンク / 熱可塑性樹脂 / 不織布 / ツリウムファイバーレーザ / CO2レーザー / Tm:ファイバーレーザ

Research Abstract

The influence on welding performance was studied for five kinds of composite fiber nonwoven fabrics(Combination of Polyamide, polyester, rayon).
The welding conditions which become the optimal were searched for by experiment. The nonwoven fabric which does not contain the rayon fiber as thermoplastic material has comparatively little variation in peel strength. However, it was confirmed that all tested materials are possible to be welded by our laser welding method.

Research Products

• [Presentation] LASER WELDING OF FLUORPLASTICS ASSISTED BY A SOLID HEATSINK TRANSPARENT TO INFRAREDRADIATION-UTILIZING A CO LASERAND NONDISTRUCTIVE EVALUATION- (2011)
  • Author(s): Kimitoshi Sato, Takuhei Oosawa and Yaasuo Kurosaki
  • Organizer: Asian Workshop on Polymer Processing in China 2011
• [Presentation] A fiber laser welding of plastics assisted by a transparent solid heat sink to prevent the surface thermal damage (2010)
  • Author(s): Yasuo Kurosaki
  • Organizer: LANE2010
  • Place of Presentation: Erlsngen大学, Erlangen、ドイツ
  • Year and Date: 2010-09-22
• [Presentation] Fiber laser welding of plastics avoidingthermal damage with a solid heat sink transparentto laser beam (2010)
  • Author(s): Yasuo Kurosaki, Kimitoshi Sato
  • Organizer: ANTEC2010
  • Place of Presentation: Orlando, Florida, USA
• [Presentation] A FIBER LASER WELDING OFPLASTICS ASSISTED BY A TRANSPARENTSOLID HEAT SINK TO PREVENT THESURFACE THERMAL DAMAGE (2010)
  • Author(s): YasuoKurosaki
  • Organizer: LANE2010
  • Place of Presentation: Erlangen, Germany
• [Presentation] 不織布のレーザ溶着-赤外線透過固体ヒートシンクによる表面損傷低減化- (2010)
  • Author(s): 橋爪郁博、宮原仁、佐藤慎也、佐藤公俊、黒崎晏夫
  • Organizer: 成形加工シンポジア' 10
  • Place of Presentation: 神戸大学
• [Presentation] The CO laser welding of polyorefin and fluorocarbon polymers without surface thermal damage assisted by a transparent solid heat sink (2009)
  • Author(s): Yasuo Kurosaki
  • Organizer: PPS Europe/Africa Regional Meeting 2009, Polymer Processing Society
  • Place of Presentation: Golden Bay Hotel,ラルナカ、キプロス
  • Year and Date: 2009-10-20
• [Presentation] CO2 Laser Welding of the PFA Disk Top on a Circular Tube Assisted by a Transparent Solid Heat Sink (2009)
  • Author(s): Yasuo Kurosaki
  • Organizer: ANTEC2009, Society of Plastic Engineers
  • Place of Presentation: McCormick place,シカゴ、米国
  • Year and Date: 2009-06-23
• [Presentation] Fiber laser welding of plastics avoiding thermal damage with a solid heat sink transparent to laser beam (2009)
  • Author(s): Yasuo Kurosaki
  • Organizer: ANTEC2010, Society of Plastic Engineers
  • Place of Presentation: マリオット会議場、オーランド、米国
  • Year and Date: 2009-05-16