CN109365700A - Complicated arc variable cross-section forging closes forging rolloff manufacturing process - Google Patents

Complicated arc variable cross-section forging closes forging rolloff manufacturing process Download PDF

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Publication number
CN109365700A
CN109365700A CN201811329875.0A CN201811329875A CN109365700A CN 109365700 A CN109365700 A CN 109365700A CN 201811329875 A CN201811329875 A CN 201811329875A CN 109365700 A CN109365700 A CN 109365700A
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CN
China
Prior art keywords
roller
forging
core roller
king
core
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
CN201811329875.0A
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Chinese (zh)
Inventor
赵晓光
冉雄波
万东海
张令
张明桥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Aerospace Xinli Casting and Forging Co Ltd
Original Assignee
Guizhou Aerospace Xinli Casting and Forging Co Ltd
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
Application filed by Guizhou Aerospace Xinli Casting and Forging Co Ltd filed Critical Guizhou Aerospace Xinli Casting and Forging Co Ltd
Priority to CN201811329875.0A priority Critical patent/CN109365700A/en
Publication of CN109365700A publication Critical patent/CN109365700A/en
Withdrawn legal-status Critical Current

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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

Abstract

Complicated arc variable cross-section forging closes forging rolloff manufacturing process, alloy pig is first heated to 1150~1180 DEG C, then pass through jumping-up, punching, reaming process produces preform, by preform into stove heating to 1150~1180 DEG C, take out blank, it places it on ring rolls, king roller bushing and core roller bushing are respectively fitted on king roller and core roller, start ring rolls, it is started turning under the drive of king roller and core roller, upper and lower cone roller is pressed on two end faces of blank simultaneously, start to roll, core roller and core roller mould elder generation's large inflow are moved to home roll and king roller bushing direction, when blank occur bending and deformation, size in place after, it closes ring rolls and obtains two pieces conjunction forging, the asymmetric complex section structure of single-piece is become into symmetrical structure, constitute the ring of a similar C shaped sections, finally it is cut into two Part.The present invention is easily achieved accurate looping mill rolling forming to improve Accurate Shaping manufacture feasibility, reduces manufacture difficulty, saves material.

Description

Complicated arc variable cross-section forging closes forging rolloff manufacturing process
Technical field
The invention belongs to forging method fields, are mainly concerned with a kind of complicated arc section thin-walled process for manufacturing forging.
Background technique
Complicated arc section thin-walled forging is the critical component of certain equipment, as shown in Figure 1.Material is high strength alloy steel, Due in irregular shape, and there are biggish difficulties for section thickness change in size larger (thinnest part 2mm, thickness 120mm) forging Degree.
Conventional manufacturing method has following two:
Method one: it is then machined according to overall size by forging process for fuel at a ring;
Method two: it is first forged into a ring, then bending is carried out by mold, is then machined;
But since the forging's block dimension is larger, 6000 tons or more of hydraulic press is needed to be formed.It is existing due to the particularity of structure Methodical stock utilization is very low (about 20%), while the machining through excessive surplus, has cut off metallic fiber, drop The low service life and comprehensive performance of product, and the manufacturing cycle is long, is unable to satisfy equipment progress demand.
Summary of the invention
In view of problems existing for the above method, the design feature of comprehensive analysis forging, forging short transverse drop compared with Greatly, at section thickness by 2mm to 120mm.In order to improve stock utilization as far as possible, need to realize the profile-followed manufacture of forging, list Part complexity unsymmetrical section realizes that profile-followed manufacture difficulty is very big.
Complicated arc variable cross-section forging closes forging rolloff manufacturing process, alloy pig is heated to 1150~1180 DEG C first, so Afterwards by jumping-up, punching, reaming process produce preform, then by preform into stove heating to 1150~1180 DEG C, It takes out blank 7 to place it on ring rolls, king roller bushing 1 and core roller bushing 3 is respectively fitted on king roller 2 and core roller 4, opened Dynamic ring rolls, starts turning under the drive of king roller 2 and core roller 4, and upper cone roller 5 and lower cone roller 6 are pressed in blank two ends simultaneously On face, start to roll, core roller 4 and the first large inflow of core roller mould 3 moves to home roll 2 and 1 direction of king roller bushing, when blank hair Raw bending deformation, size in place after, close ring rolls, obtain two pieces and close forging, the asymmetric complex section structure of single-piece is become pair Claim structure, constitutes the ring of a similar C shaped sections, be finally cut into two pieces,.
By adopting the above technical scheme the utility model has the advantages that
1, necessary process structure materials are arranged in the present invention, and two pieces closes forging, the asymmetric complex section structure of single-piece is become symmetrical Structure, constitutes the ring of a similar C shaped sections, and C shaped sections ring is easily achieved accurate looping mill rolling forming to improve essence True figuration manufacture feasibility, reduces manufacture difficulty, saves material.
2, the present invention utilizes rolling ring method part, continuous, small deformation amount technological advantage, the device fabrication of the smaller tonnage of use The forging that great tonnage hydraulic machine could manufacture, is greatly saved equipment investment and equipment loss.
3, the near closed hollow ring that the present invention is constituted using home roll and core roller mould simultaneously, realizes the Accurate Shaping of arc section.
Detailed description of the invention
Fig. 1 is the complicated arc section thin-walled forging schematic diagram processed needed for the present invention;
Fig. 2 is the structural schematic diagram of forging after the merging of two pieces arc section in the present invention;
Fig. 3 system is the structural schematic diagram of C-shaped section forging rolloff in the present invention;
In figure: cone roller, 7- blank under 1- king roller bushing, 2- king roller, 3- core roller bushing, 4- core roller, the upper cone roller of 5-, 6-.
Specific embodiment
Complicated arc variable cross-section forging closes forging rolloff manufacturing process, alloy pig is heated to 1150~1180 DEG C first, so Afterwards by jumping-up, punching, reaming process produce preform, then by preform into stove heating to 1150~1180 DEG C, It takes out blank 7 to place it on ring rolls, king roller bushing 1 and core roller bushing 3 is respectively fitted on king roller 2 and core roller 4, opened Dynamic ring rolls, starts turning under the drive of king roller 2 and core roller 4, and upper cone roller 5 and lower cone roller 6 are pressed in blank two ends simultaneously On face, start to roll, core roller 4 and the first large inflow of core roller mould 3 moves to home roll 2 and 1 direction of king roller bushing, when blank hair Raw bending deformation, size in place after, close ring rolls, obtain two pieces and close forging, the asymmetric complex section structure of single-piece is become pair Claim structure, constitutes the ring of a similar C shaped sections, be cut into two pieces finally to get forging shown in Fig. 1.

Claims (1)

1. complicated arc variable cross-section forging closes forging rolloff manufacturing process, it is characterised in that: alloy pig is heated to 1150 first~ 1180 DEG C, then by jumping-up, punching, reaming process produce preform, then by preform into stove heating to 1150 It~1180 DEG C, takes out blank (7) and places it on ring rolls, king roller bushing (1) and core roller bushing (3) are respectively fitted over master and rolled On roller (2) and core roller (4), start ring rolls, started turning under the drive of king roller (2) and core roller (4), upper cone roller (5) and Lower cone roller (6) is pressed on two end faces of blank simultaneously, starts to roll, and the first large inflow of core roller (4) and core roller mould (3) is to home roll (2) with king roller bushing (1) direction move, when blank occur bending and deformation, size in place after, close ring rolls, obtain two pieces Forging is closed, the asymmetric complex section structure of single-piece is become into symmetrical structure, constitutes the ring of a similar C shaped sections, finally will It is cut into two pieces,.
CN201811329875.0A 2018-11-09 2018-11-09 Complicated arc variable cross-section forging closes forging rolloff manufacturing process Withdrawn CN109365700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811329875.0A CN109365700A (en) 2018-11-09 2018-11-09 Complicated arc variable cross-section forging closes forging rolloff manufacturing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811329875.0A CN109365700A (en) 2018-11-09 2018-11-09 Complicated arc variable cross-section forging closes forging rolloff manufacturing process

Publications (1)

Publication Number Publication Date
CN109365700A true CN109365700A (en) 2019-02-22

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CN201811329875.0A Withdrawn CN109365700A (en) 2018-11-09 2018-11-09 Complicated arc variable cross-section forging closes forging rolloff manufacturing process

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112170748A (en) * 2020-09-30 2021-01-05 贵州安大航空锻造有限责任公司 Ti2Rolling forming method of AlNb-based alloy basin-shaped ring forging
CN112620398A (en) * 2021-03-10 2021-04-09 四川华体照明科技股份有限公司 Continuous forming device and forming process for metal plate

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201049378Y (en) * 2007-03-05 2008-04-23 贵州安大航空锻造有限责任公司 High-temperature alloy ring-shape forging combined rolling die with abnormal cross section
CN101811246A (en) * 2010-04-02 2010-08-25 张家港海陆环形锻件有限公司 Production method of wind tower flange deformed ring forging
CN102513799A (en) * 2012-01-06 2012-06-27 山东伊莱特重工有限公司 Ring rolling method for flange of megawatt wind generation set tower
CN102554114A (en) * 2012-01-06 2012-07-11 山东伊莱特重工有限公司 Ring forging and rolling processing method of bearing ring parts used for large-scale wind turbine unit
CN102688962A (en) * 2012-05-08 2012-09-26 浙江天马轴承股份有限公司 Symmetric rolling forming method of large inner-step ring parts
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
CN104801639A (en) * 2015-04-24 2015-07-29 山西双环重型机械有限公司 Assembling die and flanging manufacturing process
CN106166590A (en) * 2016-08-29 2016-11-30 贵州航天新力铸锻有限责任公司 The rolloff moulding manufacture method of the I-shaped forging of magnet support

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201049378Y (en) * 2007-03-05 2008-04-23 贵州安大航空锻造有限责任公司 High-temperature alloy ring-shape forging combined rolling die with abnormal cross section
CN101811246A (en) * 2010-04-02 2010-08-25 张家港海陆环形锻件有限公司 Production method of wind tower flange deformed ring forging
CN102513799A (en) * 2012-01-06 2012-06-27 山东伊莱特重工有限公司 Ring rolling method for flange of megawatt wind generation set tower
CN102554114A (en) * 2012-01-06 2012-07-11 山东伊莱特重工有限公司 Ring forging and rolling processing method of bearing ring parts used for large-scale wind turbine unit
CN102688962A (en) * 2012-05-08 2012-09-26 浙江天马轴承股份有限公司 Symmetric rolling forming method of large inner-step ring parts
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
CN104801639A (en) * 2015-04-24 2015-07-29 山西双环重型机械有限公司 Assembling die and flanging manufacturing process
CN106166590A (en) * 2016-08-29 2016-11-30 贵州航天新力铸锻有限责任公司 The rolloff moulding manufacture method of the I-shaped forging of magnet support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112170748A (en) * 2020-09-30 2021-01-05 贵州安大航空锻造有限责任公司 Ti2Rolling forming method of AlNb-based alloy basin-shaped ring forging
CN112620398A (en) * 2021-03-10 2021-04-09 四川华体照明科技股份有限公司 Continuous forming device and forming process for metal plate

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Application publication date: 20190222

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