Method for making sucker rods

A method for making sucker rods composed of a rod body (1) and end heads (2), consisting in upsetting the rod body end portions (8) carried out at a temperature that precludes softening of the rod body (1) metal, a thickening (9) being formed on each of the end portions (8), the width of the thicken...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KARAEV, ISLAM K. O, SUTOVSKY, PAVEL M, AVAKIAN, EMILIA V, RABINOVICH, AVRAAM M, SEMKIN, NIKOLAI V, SHIKHLINSKY, TALAT M. O, POLIKHRONOV, KONSTANTIN P, DZHABAROV, RAUF D
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SOLDERING OR UNSOLDERING TRANSPORTING WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A method for making sucker rods composed of a rod body (1) and end heads (2), consisting in upsetting the rod body end portions (8) carried out at a temperature that precludes softening of the rod body (1) metal, a thickening (9) being formed on each of the end portions (8), the width of the thickening in a direction perpendicular with the rod body (1) axis being equal to or in excess of the head (2) maximum diameter in the weld joint place, while its length exceeds the width of the heat-affected area (17) involved in the welding process. A transition portion (10) shaped as a solid of revolution has a cross-section which smoothly and continuously decreases from the thickening (9) towards the rod body (1). The upsetting procedure is followed by friction welding of each of the end heads (2) together with the thickening (9) on the rod body and portion (8) and by turning the weld joint zone.