ELECTRIC-CONTACT WELDING ON METHOD

FIELD: restoration of worn parts by means of electric-contact welding processes with use of additive materials such as steel wires, belts and powders. ^ SUBSTANCE: method comprises steps of pressing additive wire to surface of shaft; heating it till plastic state by means of high-power short time pe...

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Bibliographische Detailangaben
Hauptverfasser:	ZAGIROV IL'NUR ILDAROVICH, NAFIKOV MARAT ZAKIEVICH, FARKHSHATOV MARS NURULLOVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	FIELD: restoration of worn parts by means of electric-contact welding processes with use of additive materials such as steel wires, belts and powders. ^ SUBSTANCE: method comprises steps of pressing additive wire to surface of shaft; heating it till plastic state by means of high-power short time period electric current pulses and upsetting with use of welding -on roller; forming continuous metallic coating by welding on to restored surface welding lands mutually overlapped along length and width; placing protection belt in the form of endless ring made of highly electrically conducting and thermally conducting metal such as copper between additive wire and working surface of welding-on roller. It allows significantly reduce contact stresses in electrode metal. ^ EFFECT: lowered wear degree of tool with use of such method. ^ 1 dwg, 1 ex