Controlling of Welding and Surface Treatment Processes by Real Time Fracture Monitoring

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820302
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: The University of Tokyo
• Principal Investigator: Ito Kaita 東京大学, 工学(系)研究科(研究院), 講師 (30554381)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: アコースティック・エミッション法 / 非破壊評価 / 波形解析 / 摩擦攪拌接合 / 懸濁液プラズマ溶射

Outline of Final Research Achievements

An acoustic emission (AE) measurement system which includes a novel waveform analysis method with parallel processing by GPGPU was developed for monitoring of materials working processes under noisy environment. Herewith, parameter settings are no longer needed for noise reduction and AE event detection. The whole analysis is done in real time and automatically.
Furthermore, friction stir welding (FSW) and suspension plasma spraying (SPS) processes were monitored by the developed AE measurement system. Defects were detected in real-time and the effectiveness of process controlling which is based on this result was shown.

Free Research Field

非破壊評価