Study on mechanism of laser metal-plastic welding using Raman spectroscopy

2009 Fiscal Year Final Research Report

• Project/Area Number: 20760498
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Material processing/treatments
• Research Institution: The Graduate School for the Creation of New Photonics Industries
• Principal Investigator: HEYA Manabu The Graduate School for the Creation of New Photonics Industries, 光産業創成研究科, 准教授 (40324818)
• Project Period (FY): 2008 – 2009
• Keywords: 接合・溶接 / ラマン分光 / 異種溶着 / 樹脂変性 / 実モニタリング

Research Abstract

The purpose of this study was to investigate the mechanism of laser metal-plastic welding using Raman spectroscopy. The metal-plastic welding using visible or near-infrared lasers is the one of new innovative technologies. However, there are many unknown factors in the welding process. We established and improved our Raman spectroscopy system, and obtained the spectra of laser-welded samples. We compared the Raman spectra between the irradiated and the non-irradiated samples. As a result, no clear differences between the both were confirmed in the observed Raman spectra. In the future, we will optimize the combination of used filters and high-sensitivity infrared cameras, and improve our Raman spectroscopy system.