FIELD: engines and pumps.
SUBSTANCE: electrode and part are connected to the DC welding source by reverse polarity circuit. Transferring the material of the vibrating electrode is carried out by the arc occurring while retracting the electrode from the part surface after their contact. In every moment of the electrode contact with the part surface, a positive current pulse of the capacitor discharge is supplied to the electrode, the parameters of which are selected from the conditions for providing the process of electric-spark alloying the part surface by the electrode material with the creation of the diffusion layer in the area of said contact. The capacitor discharge current pulse is supplied with the energy of 0.5-10.0 J at the capacitor charge voltage of 30-100 V.
EFFECT: possibility of reducing the welding current while processing thin-walled parts, with the simultaneous increased strength of the weld surface adhesion with the part metal.
2 cl, 1 dwg, 1 tbl
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Authors
Dates
2017-03-24—Published
2015-08-26—Filed