METHOD FOR WELDING RING GEAR

PURPOSE:To obtain sound welded part without any cracking by subjecting mild steel wire to a carbon dioxide gas arc welding and successively, executing arc post-heating treatment with arc heat of a TIG welder. CONSTITUTION:After fitting a ring gear 2 and a plate 3, the mild steel wire 6 is successive...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI SHIGEO, NAGATA EIJI, MITA JIYUNICHI, FURUSAWA NAGAHARU, BAN HIROSHI, ISHII MASAMI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain sound welded part without any cracking by subjecting mild steel wire to a carbon dioxide gas arc welding and successively, executing arc post-heating treatment with arc heat of a TIG welder. CONSTITUTION:After fitting a ring gear 2 and a plate 3, the mild steel wire 6 is successively supplied with a carbon dioxide gas arc welder 8, and after welding the ring gear 2 and the plate 3 as shown in the welded part (bead) 4, the arc post-heating treatment is executed with the arc heat of tungsten inert gas welder 10. By this method, in the case of welding different kinds of materials, by applying post-heating treatment with the TIG welding because of a need to make the cooling velocity after welding slow, the sound weld part having the prescribed value or lower of hardness Hv in the ordinary martensitic structure without any cracking can be obtd.