RU2002108620A - A method of manufacturing an intermediate preform of alpha and (alpha + beta) -titanium alloys - Google Patents

A method of manufacturing an intermediate preform of alpha and (alpha + beta) -titanium alloys

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Publication number
RU2002108620A
RU2002108620A RU2002108620/02A RU2002108620A RU2002108620A RU 2002108620 A RU2002108620 A RU 2002108620A RU 2002108620/02 A RU2002108620/02 A RU 2002108620/02A RU 2002108620 A RU2002108620 A RU 2002108620A RU 2002108620 A RU2002108620 A RU 2002108620A
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Russia
Prior art keywords
temperature
alpha
deformation
region
forging
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RU2002108620/02A
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Russian (ru)
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RU2217260C1 (en
Inventor
Владислав Валентинович Тетюхин
Игорь Васильевич Левин
Владимир Григорьевич Смирнов
Николай Александрович Чалков
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ОАО Верхнесалдинское металлургическое производственное объединение
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Priority to RU2002108620A priority Critical patent/RU2217260C1/en
Priority claimed from RU2002108620A external-priority patent/RU2217260C1/en
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Publication of RU2217260C1 publication Critical patent/RU2217260C1/en
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Claims (1)

Способ изготовления промежуточной заготовки из α- и (α+β)-титановых сплавов, включающий ковку слитка в пруток за несколько переходов при температуре β-области, промежуточную ковку за несколько переходов при температуре β- и (α+β)-области, окончательную деформацию при температуре (α+β)-области и механическую обработку, отличающийся тем, что промежуточную ковку в (α+β)-области осуществляют с величиной укова 1,25-1,75, причем на ее окончательных переходах ковку проводят с уковом 1,25-1,35 в пруток диаметром Дп, который определяют по выражению:A method of manufacturing an intermediate billet from α- and (α + β) -titanium alloys, including forging an ingot into a bar for several transitions at a temperature of the β-region, intermediate forging for several transitions at a temperature of β- and (α + β) -region, the final deformation at the temperature of the (α + β) -region and machining, characterized in that the intermediate forging in the (α + β) -region is carried out with a bob value of 1.25-1.75, and at its final transitions, the forging is carried out with bob 1 , 25-1.35 in a bar with a diameter of DP, which is determined by the expression:
Figure 00000001
Figure 00000001
 где Дп - диаметр прутка, мм;where Dp is the diameter of the bar, mm; dпз - диаметр промежуточной заготовки, мм;dпз - diameter of the intermediate billet, mm; [Δt] - допустимое приращение температур в процессе прессования;[Δt] is the allowable temperature increment during the pressing process; с - удельная теплоемкость сплава, КДж/кг;C is the specific heat of the alloy, KJ / kg; ρ - плотность деформируемого металла, кг/м3;ρ is the density of the wrought metal, kg / m 3 ; δ - припуск на механическую обработку, мм;δ is the machining allowance, mm; σ - сопротивление деформации, Мпа,σ is the deformation resistance, MPa, а окончательную деформацию выполняют путем прессования при температуре Т, которую определяют по выражениюand the final deformation is performed by pressing at a temperature T, which is determined by the expression
Figure 00000002
Figure 00000002
 где Т- температура металла при прессовании, °С;where T is the temperature of the metal during pressing, ° C; Тпп - температура полиморфного превращения,°С;TPP - temperature polymorphic transformation, ° C; ln μ - натуральный логарифм истинной вытяжки при прессовании;ln μ is the natural logarithm of the true stretch during pressing; σ1 - сопротивление деформации с учетом скорости и температуры деформации, Мпа,σ 1 - deformation resistance taking into account the speed and temperature of deformation, MPa, кроме того, перед окончательной деформацией выполняют механическую обработку заготовки, резку ее на краты и формирование торцев.in addition, before the final deformation, the workpiece is machined, cut into edges and the ends are formed.
RU2002108620A 2002-04-04 2002-04-04 METHOD FOR MAKING INTERMEDIATE BLANKS OF α AND α TITANIUM ALLOYS RU2217260C1 (en)

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US9255316B2 (en) 2010-07-19 2016-02-09 Ati Properties, Inc. Processing of α+β titanium alloys
US8613818B2 (en) 2010-09-15 2013-12-24 Ati Properties, Inc. Processing routes for titanium and titanium alloys
US10513755B2 (en) 2010-09-23 2019-12-24 Ati Properties Llc High strength alpha/beta titanium alloy fasteners and fastener stock
US8652400B2 (en) 2011-06-01 2014-02-18 Ati Properties, Inc. Thermo-mechanical processing of nickel-base alloys
RU2468882C1 (en) * 2011-06-08 2012-12-10 Открытое Акционерное Общество "Корпорация Всмпо-Ависма" METHOD OF MAKING INTERMEDIATE BLANKS FROM (α+β)-TITANIUM ALLOYS
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RU2758044C1 (en) * 2021-01-29 2021-10-25 Общество с ограниченной ответственностью «Хермит Рус» Method for manufacturing forged billet in form of bar from (a+b)-titanium alloys
RU2758735C1 (en) * 2021-01-29 2021-11-01 Общество с ограниченной ответственностью «Хермит Рус» METHOD FOR MANUFACTURING A FORGED WORKPIECE IN THE FORM OF A ROD FROM (α+β)-TITANIUM ALLOYS
RU2758045C1 (en) * 2021-02-02 2021-10-25 Общество с ограниченной ответственностью «Хермит Рус» Method for producing billets in the form of a bar from (a+b)-titanium alloys
RU2758737C1 (en) * 2021-02-03 2021-11-01 Общество С Ограниченной Ответственностью "Хермит Рус" METHOD FOR PRODUCING A FORGED WORKPIECE IN THE FORM OF A ROD FROM (α+β)-TITANIUM ALLOYS

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