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1. (WO2017033832) ARC WELDING QUALITY ASSESSING SYSTEM

Pub. No.:    WO/2017/033832    International Application No.:    PCT/JP2016/074120
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Fri Aug 19 01:59:59 CEST 2016
IPC: B23K 31/00
B23K 9/095
Applicants: DAIHEN CORPORATION
株式会社ダイヘン
Inventors: NAKAGAWA, Shinichiro
中川 慎一郎
Title: ARC WELDING QUALITY ASSESSING SYSTEM
Abstract:
This arc welding quality assessing system is provided with a setting unit which, for each first time point in a certain population, sets an upper limit at the first time point on the basis of the maximum value at the first time point or the maximum value at a plurality of time points including the first time point, and sets a lower limit at the first time point on the basis of the minimum value at the first time point or the minimum value at the plurality of time points including the first time point. The arc welding quality assessing system is additionally provided with an assessing unit which assess that there is not a welding defect if a measured value obtained during welding is within the range between the upper limit and the lower limit, and assesses that there is a welding defect if the measured value is outside said range.