溶接学会論文集
Print ISSN : 0288-4771
基本溶接条件の変化に伴う各種計測信号の変化
レーザー溶接のためのモニタリング法の特徴とその応用(2)
渡辺 眞生中林 督博平賀 仁井上 尚志松縄 朗
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1998 年 16 巻 2 号 p. 181-188

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The authors are researching the plasma behavior in laser welding and the applicability to monitoring. In the first paper we described the relation between the monitoring signals and shielding gas plasma.
This paper describes the appearances of detective signals with changes of basic welding conditions, main results are as follows;
1. Amplitude of each signal showed more correlative with penetration depth than average of signals.
2. The correlation between an amplitude of each signal and welding condition was based on a plasma fluctuation which is influenced by the size of key hole and molten pool.
This work was performed under the management of ALERI (Applied Laser Engineering Research Institute) as a part of "the Leasing Basic Research Practical Use of Research Facility Centers" supported by NEDO (New Energy and Industrial Technology Development Organization).

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