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2 118 381

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IPC

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Application

97106057/02, 1997-04-14

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Actual filing date

1997-04-14

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Published

1998-08-27

(72)

Inventor

Nazarov D.S.Ozur G.E.Orlov P.V.Poleshchenko K.N.Gering G.I.Goncharenko I.M.Proskurovskij D.I.Rotshtejn V.P.

(73)

Holder

Institut Sil'Notochnoj Ehlektroniki So Ran

PROCESS HARDENING HARD-ALLOY TOOL Russian patent published in 1998 - IPC

Abstract RU 2118381 C1

FIELD: hardening of hard-alloy tools. SUBSTANCE: working surface of tool is multiply irradiated with pulses of heavy-current electron beam with pulse length of 2.0-3.0 microseconds, electron energy 10.0-30.0 keV, energy density depending on chemical composition of hard alloy within interval of 0.8-5.0 J/sq.cm and number of pulses 5 to 10. For additional increase of durability of tool it is subjected after irradiation to annealing in vacuum at 900 C in the course of 1.5-2.0 h. Invention makes it possible to increase strength characteristics of surface layer and to raise durability of tool two or three-fold. EFFECT: increased strength characteristics and durability of tool. 1 dwg

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RU 2 118 381 C1

Authors

Nazarov D.S.

Ozur G.E.

Orlov P.V.

Poleshchenko K.N.

Gering G.I.

Goncharenko I.M.

Proskurovskij D.I.

Rotshtejn V.P.

Dates

1998-08-27—Published

1997-04-14—Filed

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