ELECTRON BEAM WELDING METHOD

PURPOSE:To prevent the deflection of the leading end of a butt weld zone by oscillating ultrasonic wave signals to said weld zone and regulating the irradiation of an electron beam in such a way as to maintain the deviation of both reflection signals from the leading end of the weld zone and the new...

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Bibliographische Detailangaben
Hauptverfasser:	JINBOU RIYUUTAROU, KAMOSHITA RIKUO, OKAMURA HISANOBU, NAKASAKI TAKAMITSU, KINO HIROTOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICS SOLDERING OR UNSOLDERING TESTING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent the deflection of the leading end of a butt weld zone by oscillating ultrasonic wave signals to said weld zone and regulating the irradiation of an electron beam in such a way as to maintain the deviation of both reflection signals from the leading end of the weld zone and the newly provided 2nd groove line with time at a constant value. CONSTITUTION:Other than the 1st groove line 4, the 2nd groove line 6 parallel with the line 4 is provided. A distance difference is detected from both ultrasonic reflection signals from the line 6 and the leading end 5a of the weld zone detected with a transducer 7, in a time difference operating circuit. Next, the irradiation of an electron beam 1 is automatically regulated in such a way that said difference attains the same value as a reference value. In this way, the welding is executed by following up the leading end of the weld zone at all time in the above-mentioned manner, the deflection of the leading end of the weld zone is prevented.