Other

Oleg Kuzmich Nazarenko

Alexandr Fedorovich Ivanenko

Leonid Pavlovich Strekal

Adolf Alfonsovich Vasiliev

Evgeny Ivanovich Istomin

Igor Antonovich Porazhinsky

Gleb A Spynu

Leonid Ignatievich Zhivaga

Jury I Pastushenko

Viktor E Lokshin

Vladimir I Shapoval

Jury Nikolaevich Zhdanov

A device, for tracking a seam between abutting workpieces by a scanning electron beam, includes a scanning electron beam generating source, a power supply source of the scanning electron beam generating source, at least one secondary emission detector accommodated within a shield and positioned during welding between the scanning electron beam generating source and a workpiece being welded. The detector has an aperture for the scanning electron beam to pass through, and a tap to which is connected a generator of information signals indicative a variation in the surface of the workpiece being welded. This information signal generator is constructed as a differential unit having one input connected to the detector tap, and the other input connected to the power supply source of the scanning electron beam generating source. The information signal indicative of variation in the workpiece surface is formed at the output of the differential unit, and corresponds to the difference between a signal representative of the scanning electron beam pulsation and a signal representative of a secondary electron flow, produced in a zone of electron beam impingement on the workpiece surface being scanned and received by the secondary emission detector.

Device for detecting seam between abutting workpieces by electron beam

Disclosure is made of an electron beam welding gun, wherein an anode unit is connected to a cathode unit having a sealed housing, in which there is arranged a cathode assembly. Said cathode assembly comprises a high voltage tubular insulator, whereupon there are mounted sealed leads. The inside of said sealed housing is filled with a liquid dielectric and cooled by a cooler. At least part of the outer surface of the high-voltage tubular insulator is part of the surface of the sealed housing's internal cavity.

Electron beam welding gun

Growing community of inventors

Kyiv, Ukraine

Oleg Kuzmich Nazarenko