Metal fusion bonding – Process – Using dynamic frictional energy
Patent
1989-05-09
1992-02-18
Godici, Nicholas P.
Metal fusion bonding
Process
Using dynamic frictional energy
228114, 2281735, B23K 2012
Patent
active
050886380
ABSTRACT:
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.
REFERENCES:
patent: 3295613 (1967-01-01), Anderson
patent: 4487357 (1984-12-01), Simon
Metals Handbook, Ninth Edition, vol. 6, Friction Welding, 1983.
D. N. Reshetov, "Detali Mashin", 1974, Mashinostroenie publishers (Moscow) cf. pp. 416, 417, 424.
Avakian Emilia V.
Dzhabarov Rauf D.
Karaev Islam K. O.
Polikhronov Konstantin P.
Rabinovich Avraam M.
Godici Nicholas P.
Heinrich Samuel M.
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