Numerical simulation of combustion effects during laser processing of carbon fiber reinforced plastics

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• 作者：Tomomasa Ohkubo ; Masahiro Tsukamoto ; Yuji Sato
• 刊名：Applied Physics A: Materials Science & Processing
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：122
• 期：3
• 全文大小：698 KB
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• 作者单位：Tomomasa Ohkubo (1)
  Masahiro Tsukamoto (2)
  Yuji Sato (2)
  
  1. Department of Mechanical Engineering, Tokyo University of Technology, 1404-1, Katakura-chou, Hachiouji-shi, Tokyo, 192-0914, Japan
  2. Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki-shi, Osaka, 567-0047, Japan
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Condensed Matter
  Optical and Electronic Materials
  Nanotechnology
  Characterization and Evaluation Materials
  Surfaces and Interfaces and Thin Films
  Operating Procedures and Materials Treatment
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0630

文摘

We applied the finite difference method to a numerical simulation of material removal in the laser ablation of a carbon fiber reinforced plastic (CFRP). Although a few theoretical and numerical studies of heat-affected zone (HAZ) formation have been reported, there has been no report describing heat generation due to oxidization of the materials. It is important to consider combustion effects when discussing the generation of a HAZ in order to improve the quality of CFRP cutting by laser. To develop a new calculation model that includes the effects of the combustion of each element of the CFRP, thermogravimetric analysis (TGA) and differential thermal analysis (DTA) were performed for CFRP in air. We succeeded in qualitatively simulating the generation of a HAZ, including the effects of combustion, using data obtained by TGA and DTA. Therefore, not only thermal conductivity, but also combustion effects, should be considered when discussing how a HAZ is generated and in order to improve the cutting quality of CFRPs in laser processing.