Applying Helmholtz Resonator Principle to Investigate the Vocal Mechanism of Laser Welding Process
Acoustic signals emitted from the keyhole are closely related to weld quality in laser welding.However,the vocal mechanism has not been clearly illustrated.In this paper,the Helmholtz resonator model,which was the initial model of kinds of acoustic components,was combined with theories of welding processing to build a new model.Numerical simulation was used to get the acoustic field.And acoustic signals were obtained through sensors.After isolating and filtering these signals,we can get data to verify the model.This will provide theoretical basis and new ideas to further study of forecasting welding qualities through the analysis of acoustic signals.
Helmholtz resonator laser welding numerical simulation
Meng Fanliang Luo Zhen Ao Sansan
School of Material Science and Engineering,Tianjin University,Tianjin,China
国内会议
北京
英文
1-8
2013-06-26（万方平台首次上网日期，不代表论文的发表时间）