METHOD OF MAKING PUMP RODS - AZERBAIDZHANSKY NI I P

Title:

METHOD OF MAKING PUMP RODS

Document Type and Number:

WIPO Patent Application WO/1987/003233

Kind Code:

A1

Abstract:

A method of making pump rods shaped each as a bar (1) with end heads (2) consists in upsetting the end portions (8) of the bar (1) at a temperature excluding the softening of the metal of the bar (1) and thus providing at each of the portions (8) a thickening (9) the width of which in the direction perpendicular to the axis of the bar (1) is equal to or larger than the maximum diameter of the head (2) within the weld joint area and the length of which exceeds the width of the welding heat-affected zone (17), and providing also a transitional section (10) shaped as a body of revolution the cross-section of which smoothly and continuously diminishes in the direction from the thickening (9) to the bar (1). The upsetting is followed by the pressure welding of each end head (2) to the thickening (9) on the end portion (8) of the bar (1) and by the machining of the weld joint area.

Inventors:

KARAEV ISLAM KARIM OGLY (SU)
SHIKHLINSKY TALAT MAMAI OGLY (SU)
POLIKHRONOV KONSTANTIN POLIKHR (SU)
SUTOVSKY PAVEL MOISEEVICH (SU)
AVAKIAN EMILIA VLADIMIROVNA (SU)
SEMKIN NIKOLAI VLADIMIROVICH (SU)
RABINOVICH AVRAAM MENDELEVICH (SU)
DZHABAROV RAUF DZHAVADOVICH (SU)

Application Number:

PCT/SU1985/000093

Publication Date:

June 04, 1987

Filing Date:

November 26, 1985

Export Citation:

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Assignee:

AZERBAIDZHANSKY NI I P (SU)

International Classes:

B23K20/00; B23K20/12; B23K20/24; B23K33/00; E21B17/00; F04B53/14; (IPC1-7): B23K20/12; B21J5/08; E21B17/00

Foreign References:

SU207690A1	1967-12-22
SU978996A1	1982-12-07

Other References:

D.N. RESHETOV, "Detali Mashin", 1974, MASHINOSTROENIE (MOSCOW), pages 416, 417, 424.

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