CN107252865A - The rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy are unified into shape method - Google Patents

The rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy are unified into shape method Download PDF

Info

Publication number
CN107252865A
CN107252865A CN201710704382.XA CN201710704382A CN107252865A CN 107252865 A CN107252865 A CN 107252865A CN 201710704382 A CN201710704382 A CN 201710704382A CN 107252865 A CN107252865 A CN 107252865A
Authority
CN
China
Prior art keywords
ring
rings
fetal membrane
temperature alloy
rolling
Prior art date
Application number
CN201710704382.XA
Other languages
Chinese (zh)
Inventor
王龙祥
邹善垚
王宇峰
刘剑
Original Assignee
贵州安大航空锻造有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN2016110935391 priority Critical
Priority to CN201611093539 priority
Application filed by 贵州安大航空锻造有限责任公司 filed Critical 贵州安大航空锻造有限责任公司
Publication of CN107252865A publication Critical patent/CN107252865A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00Making articles shaped as bodies of revolution
    • B21H1/06Making articles shaped as bodies of revolution rings of restricted axial length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002Hybrid process, e.g. forging following casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20Drives for hammers; Transmission means therefor
    • B21J7/46Control devices specially adapted to forging hammers, not restricted to one of the preceding subgroups

Abstract

Shape method is unified into the invention discloses a kind of rolling of the double flange semi-rings of high temperature alloy and fetal membrane forging, its step is:High temperature alloy bar jumping-up, punching are first obtained into middle base, roll forming is middle ring billet again, middle ring billet is machined, obtain flanged (FLGD) ring billet, flanged (FLGD) ring billet is placed on progress fetal membrane forging in fetal membrane, flanged (FLGD) ring is obtained, by ring from the centre of two symmetrical flanges, cutting vertically obtains two double flange semi-rings.This method can both improve operating efficiency, and the requirement to capacity of equipment is reduced again, obtain size and of good performance pair of flange semi-ring.This method is used for the shaping of double flange semi-rings.

Description

The rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy are unified into shape method

Technical field

The present invention relates to the rolling of one kind rolling and fetal membrane forging method, the more particularly to double flange semi-rings of high temperature alloy Shape method is unified into fetal membrane forging.

Background technology

Double flange semi-rings are often used as the fixing device of aero-engine casing, in actual production process, typically all It is first to be forged into an annular element with two flanges, then two double flanges half is cut into vertically from the centre of two flanges Ring.Because with the presence of two flanges, directly can not be produced using annular element rolling mode, and it can only be forged into using fetal membrane Shape, but the forging build is larger, flange position changes of section is very big, will to equipment tonnage directly using fetal membrane forging Ask high, and easily occur filling the defect such as discontented.

The content of the invention

Shape method is unified into the technical problem to be solved in the present invention is to provide one kind rolling and fetal membrane forging, to realize double methods Blue half loop forming, so as to obtain size and of good performance pair of flange semi-ring.

In order to solve the above technical problems, the rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy of the present invention are unified into Shape method, its technical scheme comprises the following steps:

High temperature alloy is cutting into bar by certain specification;High temperature alloy bar is heated to 1020 DEG C, by 0.4min/ Mm is incubated;Then jumping-up, punching on forcing press, middle base is obtained after cooling, annealing;Middle base is reheated to 1020 again DEG C, it is incubated by 0.4min/mm;It is placed on looping mill and is rolled, during rolling, home roll is 540KN to the maximum pressure of middle base ~600KN, its calculation is F=a × β × n × σ × S, wherein, a is for what home roll gradient restricted spread was increased pressure by Number, β is parameter of the influence of intermediate stress, and n is stress status modulus, the flow stress of σ materials, S be home roll with middle base most Large access area;After the completion of rolling, air cooling obtains middle ring billet;

Middle ring billet is machined, two flanges is processed in middle ring billet symmetric position, obtains ring billet;

Ring billet is reheated to 1020 DEG C, is incubated by 0.4min/mm;Be placed in fetal membrane, driving forging hammer with 1720KN~ Ring billet forging and molding is the ring with two flanges, the calculating side of the driving force of forging hammer by 1780KN driving force extruding drift Formula is F=(1+ μ) × σ × S1, in formula, μ is friction factor, the flow stress of σ materials, S1For ring billet and the contact area of fetal membrane;

By ring from the centre of two symmetrical flanges, two double flange semi-rings are cut into vertically, and double flange semi-rings have Two flanges.

The high temperature alloy is GH4169 alloys.

Compared with prior art, beneficial effects of the present invention are as follows:

The rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy of the present invention are unified into shape method, pass through rolling and tire Film forging joint shaping, both improves operating efficiency, the requirement to capacity of equipment is reduced again, in the manufacturing process, to equipment Maximum pressure requirement be 1780KN so that double flange semi-rings can use ordinary press to shape.Double methods of this method shaping Blue half ring size and performance can meet use requirement.

After testing, this method production GH4169 alloy double flange semi-rings, its room temperature tensile properties are as follows:

Tensile strength is 1411Mpa~1451Mpa (1345Mpa for being more than use requirement), when its elongation is 0.2% Yield strength is 1208Mpa~1240Mpa (1100Mpa for being more than use requirement), and elongation after fracture is 18%~21.5% (big In use requirement 12%), the contraction percentage of area was 32%~37% the 15% of use requirement (is more than).

Brief description of the drawings

The present invention is described in further detail with reference to the accompanying drawings and detailed description.

Fig. 1 is the structural representation of middle ring billet.

Fig. 2 is flanged (FLGD) ring billet structural representation.

Fig. 3 is double flange semi-loop schematic diagrames.

Embodiment

The rolling and fetal membrane forging for implementing the double flange semi-rings of high temperature alloy of the present invention are unified into shape method and need to carry For equipment such as forge furnace, forcing press, manipulator, looping mill, cutting off machine.Closed by GH4169 high temperature of China's material trademark Exemplified by gold, to illustrate the embodiment of this method:

The main chemical elements content (percentage by weight) of the GH4169 alloys is:C content≤0.08%, amount containing Cr 17.0%~21.0%, ni content 50.0%~55.0%, amount containing Co≤1.0%, amount containing Mo 2.80%~3.30%, amount containing Al 0.30%~0.70%, amount containing Ti 0.75%~1.15%, amount containing Nb 4.75%~5.50%, amount containing B≤0.006%, containing Mg Amount≤0.01%, amount containing Mn≤0.35%, si content≤0.35%, P content≤0.015%, amount containing S≤0.015%, amount containing Cu ≤ 0.30%, amount containing Ca≤0.01%, amount containing Pb≤0.0005%, amount containing Se≤0.0003%, surplus are Fe.

The step of this method, is as follows:

GH4169 alloys are cutting into bar by certain specification;GH4169 alloy bar materials are heated to 1020 DEG C, pressed 0.4min/mm is incubated;Then jumping-up, punching on forcing press, middle base is obtained after cooling, annealing;Middle base is added again again Heat is incubated to 1020 DEG C by 0.4min/mm;It is placed on looping mill and is rolled, during rolling, maximum pressure of the home roll to middle base For 540KN~600KN, its calculation is F=a × β × n × σ × S, wherein, a makes pressure for home roll gradient restricted spread The coefficient of increase, β is parameter of the influence of intermediate stress, and n is stress status modulus, and the flow stress of σ materials, S is home roll with Between base Maximum Contact area;After the completion of rolling, air cooling obtains middle ring billet 1, as shown in Figure 1;

Middle ring billet 1 is machined, two flanges 3 is processed in middle ring billet symmetric position, obtains ring billet 2, As shown in Figure 2;

Ring billet 2 is reheated to 1020 DEG C, is incubated by 0.4min/mm;Be placed in fetal membrane, driving forging hammer with 1720KN~ The forging and molding of ring billet 2 is the ring with two flanges, the calculating of the driving force of forging hammer by 1780KN driving force extruding drift Mode is F=(1+ μ) × σ × S1, in formula, μ is friction factor, the flow stress of σ materials, S1For ring billet and the contact surface of fetal membrane Product;

By ring from the centre of two symmetrical flanges, two double flange semi-rings 4 are cut into vertically, double flange semi-rings have Two flanges 5, as shown in Figure 3.

Claims (2)

1. the rolling and fetal membrane forging of a kind of double flange semi-rings of high temperature alloy are unified into shape method, it is characterised in that including following Step:
High temperature alloy is cutting into bar by certain specification;High temperature alloy bar is heated to 1020 DEG C, protected by 0.4min/mm Temperature;Then jumping-up, punching on forcing press, middle base is obtained after cooling, annealing;Middle base is reheated to 1020 DEG C again, It is incubated by 0.4min/mm;Be placed on looping mill and rolled, during rolling, home roll to the maximum pressure of middle base for 540KN~ 600KN, its calculation is F=a × β × n × σ × S, wherein, a is for what home roll gradient restricted spread was increased pressure by Number, β is parameter of the influence of intermediate stress, and n is stress status modulus, the flow stress of σ materials, S be home roll with middle base most Large access area;After the completion of rolling, air cooling obtains middle ring billet;
Middle ring billet is machined, two flanges is processed in middle ring billet symmetric position, obtains ring billet;
Ring billet is reheated to 1020 DEG C, is incubated by 0.4min/mm;Be placed in fetal membrane, driving forging hammer with 1720KN~ Ring billet forging and molding is the ring with two flanges, the calculating side of the driving force of forging hammer by 1780KN driving force extruding drift Formula is F=(1+ μ) × σ × S1, in formula, μ is friction factor, the flow stress of σ materials, S1For ring billet and the contact area of fetal membrane;
By ring from the centre of two symmetrical flanges, two double flange semi-rings are cut into vertically, and double flange semi-rings have two Flange.
2. the rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy according to claim 1 are unified into shape method, it is special Levy and be, the high temperature alloy is GH4169 alloys.
CN201710704382.XA 2016-12-01 2017-08-16 The rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy are unified into shape method CN107252865A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2016110935391 2016-12-01
CN201611093539 2016-12-01

Publications (1)

Publication Number Publication Date
CN107252865A true CN107252865A (en) 2017-10-17

Family

ID=60027003

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710704382.XA CN107252865A (en) 2016-12-01 2017-08-16 The rolling and fetal membrane forging of the double flange semi-rings of high temperature alloy are unified into shape method

Country Status (1)

Country Link
CN (1) CN107252865A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102615223A (en) * 2012-03-30 2012-08-01 山东建筑大学 Method for simultaneously rolling and expanding two trapezoid-cross-section flange ring forge pieces
JP2012166229A (en) * 2011-02-14 2012-09-06 Jtekt Corp Method for manufacturing blank for bearing ring of rolling bearing
CN102836937A (en) * 2012-08-31 2012-12-26 武汉理工大学 Symmetrical composite roll forming method of external step ring with thick wall and small hole
CN203245182U (en) * 2013-01-14 2013-10-23 山东润驰重型锻造有限公司 Rolled kettle body flange
CN104259762A (en) * 2014-08-18 2015-01-07 贵州航宇科技发展股份有限公司 Forging and forming method for F22 flange ring pieces with non-uniform sections
CN104384826A (en) * 2014-08-18 2015-03-04 贵州航宇科技发展股份有限公司 Forging method of GH4169 alloy inner cartridge receiver special-shaped ring part
CN104889681A (en) * 2015-05-19 2015-09-09 宁波大学 Method for processing welding neck flange
CN105478637A (en) * 2015-12-25 2016-04-13 贵州航宇科技发展股份有限公司 Manufacturing method and mold of 2219 aluminum alloy strap inner flange high cylinder special-shaped annular forging
WO2016098886A1 (en) * 2014-12-19 2016-06-23 Ntn株式会社 Method for manufacturing inner member and hub ring of wheel bearing device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012166229A (en) * 2011-02-14 2012-09-06 Jtekt Corp Method for manufacturing blank for bearing ring of rolling bearing
CN102615223A (en) * 2012-03-30 2012-08-01 山东建筑大学 Method for simultaneously rolling and expanding two trapezoid-cross-section flange ring forge pieces
CN102836937A (en) * 2012-08-31 2012-12-26 武汉理工大学 Symmetrical composite roll forming method of external step ring with thick wall and small hole
CN203245182U (en) * 2013-01-14 2013-10-23 山东润驰重型锻造有限公司 Rolled kettle body flange
CN104259762A (en) * 2014-08-18 2015-01-07 贵州航宇科技发展股份有限公司 Forging and forming method for F22 flange ring pieces with non-uniform sections
CN104384826A (en) * 2014-08-18 2015-03-04 贵州航宇科技发展股份有限公司 Forging method of GH4169 alloy inner cartridge receiver special-shaped ring part
WO2016098886A1 (en) * 2014-12-19 2016-06-23 Ntn株式会社 Method for manufacturing inner member and hub ring of wheel bearing device
CN104889681A (en) * 2015-05-19 2015-09-09 宁波大学 Method for processing welding neck flange
CN105478637A (en) * 2015-12-25 2016-04-13 贵州航宇科技发展股份有限公司 Manufacturing method and mold of 2219 aluminum alloy strap inner flange high cylinder special-shaped annular forging

Similar Documents

Publication Publication Date Title
CN103522007B (en) Method for manufacturing TC25 titanium alloy ring piece
EP2714953B1 (en) Thermo-mechanical processing of nickel-base alloys
Zhang et al. Deformation characteristics of δ phase in the delta-processed Inconel 718 alloy
JP6515376B2 (en) Construction molding method for manufacturing homogenized forgings
CN102418042B (en) Novel manufacturing process of phi 300 mm-phi 700 mm high-carbon high-chromium cold-working die steel forged round steel
Cherukuri et al. A comparison of the properties of SPD-processed AA-6061 by equal-channel angular pressing, multi-axial compressions/forgings and accumulative roll bonding
CN102357633B (en) Method for manufacturing nickel-based high-temperature alloy forge piece
Huang et al. Influence of processing temperature on the microstructures and tensile properties of 304L stainless steel by ECAP
CN104498843B (en) A kind of manufacture method utilizing ferritic stainless steel to produce valve disc forging
KR100961022B1 (en) Method for producing hot-formed steel product
WO2010032799A1 (en) Method of manufacturing umbrella portion of hollow engine valve, and hollow engine valve
US9905362B2 (en) Rare-earth magnet production method
CN106563919B (en) A kind of preparation method of mobile phone center, rear cover
CN101623719B (en) Method for manufacturing stainless steel heat transfer pipe of nuclear heat exchanger
CN100500881C (en) Process of making ring fine crystal blank of GH4169 alloy for near constant temperature forging
Rajinikanth et al. Effect of repetitive corrugation and straightening on Al and Al–0.25 Sc alloy
CN101745784B (en) Simple forming process of seal head for titanium alloy cylinder
CN102319992B (en) Method for manufacturing aluminum alloy die forging
CN103722107B (en) The roll forming of rectangular titanium alloy base is the method for special-shaped thin wall ring
CN103691855A (en) Method for rolling rectangular structural steel ring blank to form irregularly-shaped thin-walled ring part
US20090165903A1 (en) Material Having Ultrafine Grained Structure and Method of Fabricating Thereof
KR100769253B1 (en) Method for designing shape in ring rolling process
CN101480689B (en) Near-isothermal forging method of two-phase titanium alloy disk-type forgeable piece
US20060081315A1 (en) Method for producing Ni based alloy and forging die
CN105252230B (en) Machining process for inclined tee

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171017

WD01 Invention patent application deemed withdrawn after publication