Accession Number : AD0250077

Title :   ELECTRON-BEAM WELDING

Corporate Author : LIBRARY OF CONGRESS WASHINGTON DC AEROSPACE TECHNOLOGY DIV

Report Date : 19 DEC 1960

Pagination or Media Count : 1

Abstract : The article describes a specialized electronbeam unit developed by the Electric Welding Institute imeni Ye. O. Paton. The unit is intended for laboratory- and production-scale welding of large parts up to 700 mm in diameter and up to 1200 mm long. The electron gun of the unit is the low-voltage (20 kv) type. It has a combined focusing system with electrostatic and (over) electromagnetic lenses and produces a beam with a current of 500 ma with a diameter in the weld plane of approximately 1 mm. The distance between the cathode of the gun and the weld plane is 120-150 mm, which was found to be the optimum for this type of gun. The gun has no deflection system for additional correction of the beam; positioning of the beam in relation to the weld is done by moving the workpiece. (Author)

Descriptors :   *RESISTANCE WELDING, *WELDING, ALLOYS, ELECTRON BEAMS, ELECTRON GUNS, INDUSTRIAL EQUIPMENT, METALS, REFRACTORY MATERIALS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE