WELDING CONTROL SYSTEM AND METHOD FOR K-TIG DEEP PENETRATION WELDING UNDER ACTION OF RESULTANT MAGNETIC FIELD

WIPO Patent Application WO/2021/068715

A1

A welding control system and control method for K-TIG deep penetration welding under the action of a resultant magnetic field. A resultant magnetic field is composed of a rotating magnetic field and a longitudinal magnetic field, and the resultant magnetic field is introduced into an area where a K-TIG deep penetration welding arc is located, such that an original motion state of the welding arc can be changed under the action of an electromagnetic force of the resultant magnetic field. The welding control system is mainly composed of a resultant magnetic field excitation system and a K-TIG deep penetration welding system. The control method is a control method based on a penetration state of a weld joint, the penetration state of the back side of the weld joint is collected by a high-dynamic camera, and the parameters of the resultant magnetic field are automatically adjusted after analysis and determination by an industrial control computer, thereby ensuring that the back side of the weld joint is in a good penetration state.

SHI YONGHUA (CN)
NING QIANG (CN)
YE XIONGYUE (CN)

PCT/CN2020/115484

April 15, 2021

September 16, 2020

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OUTH CHINA UNIV OF TECHNOLOGY (CN)

B23K9/167

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BEIJING TIAN QI ZHI XIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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