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(19)

(11)

2 572 675

(13)

(51)

IPC

B24B39/02(2006-01-01)

(21) (22)

Application

2014137644/02, 2014-09-16

(24)

Start date

2014-09-16

(22)

Actual filing date

2014-09-16

(45)

Published

2016-01-20

(72)

Inventor

Friling Vladimir Aleksandrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennaja Sel'Skokhozjajstvennaja Akademija Imeni P.A. Stolypina"

METHOD OF TREATMENT OF BUSHING INTERNAL SURFACE Russian patent published in 2016 - IPC B24B39/02

Abstract RU 2572675 C1

FIELD: machine building.

SUBSTANCE: electric contact heating and mandrelling of the bushing internal surface is performed using the duplex tool in form of contact heating tool and located behind it deforming-calibrating tool. Behind the duplex tool the felt bushing is installed, it is impregnated with antifriction composition. The contact and heating tool is used, it is made shaped with one work and three installation surfaces.

EFFECT: increased hardness and depth of hardened internal surface of the bushing, improved heat removal from contact zone of the duplex tool and treated surface.

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RU 2 572 675 C1

Authors

Friling Vladimir Aleksandrovich

Dates

2016-01-20—Published

2014-09-16—Filed