Development of the two-wavelength laser microwelding system that is capable of high speed ultrafast laser microwelding

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820025
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Production engineering/Processing studies
• Research Institution: Nara National College of Technology
• Principal Investigator: TAMAKI Takayuki 奈良工業高等専門学校, その他部局等, 准教授 (80455154)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: マイクロ接合 / フェムト秒レーザー / レーザー接合 / 炭酸ガスレーザー / ガラス

Outline of Final Research Achievements

In this study, we have developed the two-wavelength laser microwelding system using femtosecond laser system and continuous wave laser system which has a wavelength of linear absorption about materials to be joined. The microwelding system is capable of joining a large area at high speed and high quality. Also, in order to understand the interaction of the femtosecond laser pulses and continuous beam during laser microprocessing, the light absorption of the femtosecond laser pulses was measured. Based on the measurement result about light absorption, we analyzed the heat transfer in the transparent material using the finite element method.

Free Research Field

応用光学