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2 098 214

(13)

(51)

IPC

(21) (22)

Application

96103774/02, 1996-03-04

(22)

Actual filing date

1996-03-04

(45)

Published

1997-12-10

(72)

Inventor

Andreev P.A.Bogatyrev S.A.Vlasov A.M.Koleturin E.F.Kostin V.D.Mednikov G.I.Rudik F.Ja.

(73)

Holder

Nauchno-Proizvodstvennyj Tsentr

METHOD OF MAKING SEMIFINISHED PRODUCTS OF KNIFE BLADES Russian patent published in 1997 - IPC

Abstract RU 2098214 C1

FIELD: plastic metal working, namely, processes for making semifinished products of cutting tool blades, possibly blades of knives for meat industry. SUBSTANCE: method comprises steps of blanking part, heating it and cross rolling for receiving cutting edge of knife blade with size of ready semifinished product and predetermined hardness. Transition portion between blade and handle is blanked with width being less than that of ready semifinished product by 1.5. Transition portion between sharpened edge and blade is blanked with width selected according to condition of equal volumes of blank metal and metal of ready semifinished product while taking into account deformation degree in cross direction. Then blank is subjected to lengthwise rolling. EFFECT: enhanced efficiency. 5 dwg

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RU 2 098 214 C1

Authors

Andreev P.A.

Bogatyrev S.A.

Vlasov A.M.

Koleturin E.F.

Kostin V.D.

Mednikov G.I.

Rudik F.Ja.

Dates

1997-12-10—Published

1996-03-04—Filed