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2 456 114

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(51)

IPC

B21K21/12(2006-01-01)

(21) (22)

Application

2010148222/02, 2010-11-25

(24)

Start date

2010-11-25

(22)

Actual filing date

2010-11-25

(45)

Published

2012-07-20

(72)

Inventor

Ponurovskaja Aleksandra GeorgievnaMan'Ko Aleksandr IvanovichMorozova Irina Evgen'Evna

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Spetsial'Nogo Mashinostroenija I Metallurgii Zavody"

METHOD OF PRODUCING HOLLOW PUMP ROD Russian patent published in 2012 - IPC B21K21/12

Abstract RU 2456114 C1

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming. Hollow workpiece end is heated. Said end section is deformed in mould with metal edging in first passes to produce bulged section. Then, rod end is moulded to required shape and sizes. Metal edging is performed in, at least, three passes with increasing deformation. In first and second passes, rod channel diameter is reduced. Then, diameter of outer surface and channel diameter are increased. Rod head shape and sizes are produced in mould female die with increase in channel diameter.

EFFECT: expanded range of rods.

4 cl, 1 dwg

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RU 2 456 114 C1

Authors

Ponurovskaja Aleksandra Georgievna

Man'Ko Aleksandr Ivanovich

Morozova Irina Evgen'Evna

Dates

2012-07-20—Published

2010-11-25—Filed