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KOLENIČ (2010)
Koncepcia novej generácie elektrónovolúčových zváracích zariadení s výkonom do Concept of a new generation of electron beam welding equipment with up to In : Scientific seminar Technológia zvárania Technológia rozvoja priemyslu Európskej únie Bratislavapower, 30
(2006)
Obvodové riešenie systému generovania elektrónového lúča s výkonom do 30 kW . ( Design of electron beam generation system with output power up to 30 kW )
KOLENIČ
Obvodové riešenie systému generovania elektrónového lúča s výkonom do Design of electron beam generation system with output power up to In conferenceInternational, 30
(2006)
Electron and laser beam welding of die-cast aluminium alloy components of heat exchanger for automotive industry. In: IIW DOC XII-1881-06, Commision XII Intermediate meeting
(2003)
Application of a scanning electron beam for welding to prevent root defects in thick steels
(2010)
Koncepcia novej generácie elektrónovolúčových zváracích zariadení s výkonom do 30 kW . ( Concept of a new generation of electron beam welding equipment with up to 30 kW power )
KOLENIČ (2006)
and laser beam welding of die - cast aluminium alloy components of heat exchanger for automotive industry In DOC XII Commision XII Intermediate meetingElectron
Abstract This contribution deals with the issue of electron beam welding of high-accurate gear wheels composed of a spur gearing and fluted shaft joined with a face weld for automotive industry. Both parts made of the high-strength low-alloy steel are welded in the condition after final machining and heat treatment, performed by case hardening, whereas it is required that the run-out in the critical point of weldment after welding, i. e. after the final operation, would be 0.04 mm max.. In case of common welding procedure, cracks were formed in the weld, initiated by spiking in the weld root. Crack formation was prevented by the use of an interlocking joint with a rounded recess and suitable welding parameters, eliminating crack initiation by spiking in the weld root. Minimisation of the welding distortions was achieved by the application of tack welding with simultaneous splitting of one beam into two parts in the opposite sections of circumferential face weld attained on the principle of a new system of controlled deflection with digital scanning of the beam. This welding procedure assured that the weldment temperature after welding would not be higher than 400 °C. Thus, this procedure allowed achieving the final run-outs in the critical point of gearwheels within the maximum range up to 0.04 mm, which is acceptable for the given application. Accurate optical measurements did not reveal any changes in the teeth dimensions.
Research Papers Faculty of Materials Science and Technology Slovak University of Technology – de Gruyter
Published: Jun 1, 2014
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