CN109822021A - Rolloff forming method of C-shaped section forging - Google Patents

Rolloff forming method of C-shaped section forging Download PDF

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Publication number
CN109822021A
CN109822021A CN201811048625.XA CN201811048625A CN109822021A CN 109822021 A CN109822021 A CN 109822021A CN 201811048625 A CN201811048625 A CN 201811048625A CN 109822021 A CN109822021 A CN 109822021A
Authority
CN
China
Prior art keywords
roller
blank
king
bushing
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Withdrawn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
CN201811048625.XA
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Chinese (zh)
Inventor
赵晓光
张明桥
万东海
张令
冉雄波
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 CN201811048625.XA priority Critical patent/CN109822021A/en
Publication of CN109822021A publication Critical patent/CN109822021A/en
Withdrawn legal-status Critical Current

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Abstract

Rolloff forming method of C-shaped section forging, is heated to 1150~1180 DEG C for alloy pig first, is then pulled out by jumping-up, improves the as-cast structure of alloy pig;Then it is punched out, reaming full circle process produces blank;By blank into stove heating to 1150~1180 DEG C, takes out blank and place 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, cone roller a and cone roller b is pressed respectively against on two end faces of blank, start to roll, core roller and core roller bushing elder generation large inflow are moved to king roller and king roller bushing direction, at this moment blank occurs bending and deformation, size in place after, close ring rolls, the C-shaped ring part after obtaining rolling ring.The present invention rolloff molding, woth no need to manufacture intermediate blank shaping dies, lower production costs improve work efficiency.

Description

Rolloff forming method of C-shaped section forging
Technical field
The invention belongs to forging technology fields, are mainly concerned with a kind of rolloff molding fabrication techniques of C-shaped cross section forging.
Background technique
Forging of the invention is the critical component of certain equipment, as shown in Figure 1.Material is aluminium alloy, due in irregular shape, Height is far smaller than wall thickness, and many places are abnormal curved surface, and there are biggish difficulty for forging.
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: first preparing the intermediate blank of looping mill rolling, and then finish to gauge shapes on ring rolls.
But since the forging's block dimension is larger, 6000 tons or more of hydraulic press is needed to be formed, it is special due to structure Property, the stock utilization of existing method is very low (about 20%), while the machining through excessive surplus, has cut off metal fibre Dimension, reduces the service life and comprehensive performance of product, and the manufacturing cycle is long, is unable to satisfy equipment progress demand.
Since forging section thickness is thicker, using conventional blank technology of preparing, need first to carry out a pre-rolling base, so Finish to gauge is being carried out afterwards, is needing to manufacture intermediate blank shaping dies, higher cost.
Summary of the invention
It is to be solved by this invention to be: since forging section thickness is thicker, using conventional blank technology of preparing, to need elder generation A pre-rolling base is carried out, then finish to gauge is being carried out, is needing to manufacture intermediate blank shaping dies, the technical issues of higher cost.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
Rolloff forming method of C-shaped section forging, steps are as follows:
Step 1: alloy pig is heated to 1150~1180 DEG C first, is then pulled out by jumping-up, improve the as cast condition group of alloy pig It knits;Then it is punched out, reaming full circle process produces blank 7;
Step 2: taking out blank 7 by blank 7 into stove heating to 1150~1180 DEG C and placing it on ring rolls;King roller is served as a contrast Set 1 and core roller bushing 3 are respectively fitted on king roller 2 and core roller 4;
Step 3: starting ring rolls, starts turning, cone roller a5 and cone roller b6 are pressed respectively against under the drive of king roller 2 and core roller 4 On two end faces of blank 7, start to roll, core roller 4 and the first large inflow of core roller bushing 3, to king roller 2 and king roller bushing 1 Direction movement, at this moment blank 7 occurs bending and deformation, size in place after, close ring rolls, the C-shaped ring part after obtaining rolling ring.
By adopting the above technical scheme the utility model has the advantages that
The present invention rolloff molding, woth no need to manufacture intermediate blank shaping dies, lower production costs improve work efficiency.
Detailed description of the invention
Fig. 1 system C font forging structural schematic diagram of the invention;
Fig. 2 system C font looping mill rolling original state figure of the invention;
In figure: 1- king roller bushing, 2- king roller, 3- core roller bushing, 4- core roller, 5- cone roller a, 6- cone roller b, 7- blank.
Specific embodiment
The design feature of comprehensive analysis forging, the present invention use molding manufacturing method of rolloff of rectangular section blank.
As shown in Fig. 2, rolloff forming method of C-shaped section forging, steps are as follows:
Step 1: alloy pig is heated to 1150~1180 DEG C first, is then pulled out by jumping-up, improve the as cast condition group of alloy pig It knits;Then it is punched out, reaming full circle process produces blank 7;
Step 2: taking out blank 7 by blank 7 into stove heating to 1150~1180 DEG C and placing it on ring rolls;King roller is served as a contrast Set 1 and core roller bushing 3 are respectively fitted on king roller 2 and core roller 4;
Step 3: starting ring rolls, starts turning, cone roller a5 and cone roller b6 are pressed respectively against under the drive of king roller 2 and core roller 4 On two end faces of blank 7, start to roll, core roller 4 and the first large inflow of core roller bushing 3, to king roller 2 and king roller bushing 1 Direction movement, at this moment blank 7 occurs bending and deformation, size in place after, close ring rolls, the C-shaped ring part after obtaining rolling ring.
Product of the present invention shape is abnormal shape, but final section thinner thickness everywhere.The present invention is with the size in forging thickness On the basis of design rectangular section blank, design reasonable feeding curve controlled, send out blank when home roll, blank, the contact of core roller first Raw bending deformation, outer diameter increase, while using the principle of stretching drawing when material plasticity deformation, keeping blank and mold cavity final Finished product abnormity ring is obtained after contact.It is classified as two pieces after heat treatment and carries out small surplus processing.

Claims (1)

  1. Rolloff forming method of 1.C tee section forging, it is characterised in that: the method steps are as follows:
    Step 1: alloy pig is heated to 1150~1180 DEG C first, is then pulled out by jumping-up, improve the as cast condition group of alloy pig It knits;Then it is punched out, reaming full circle process produces blank (7);
    Step 2: taking out blank (7) by blank (7) into stove heating to 1150~1180 DEG C and placing it on ring rolls;Master is rolled Roller bushing (1) and core roller bushing (3) are respectively fitted on king roller (2) and core roller (4);
    Step 3: starting ring rolls, starts turning, cone roller a (5) and cone roller b (6) under the drive of king roller (2) and core roller (4) It is pressed respectively against on two end faces of blank (7), starts to roll, core roller (4) and the first large inflow of core roller bushing (3), to king roller (2) with king roller bushing (1) direction move, at this moment blank (7) occurs bending and deformation, size in place after, close ring rolls, obtain C-shaped ring part after rolling ring.
CN201811048625.XA 2018-09-10 2018-09-10 Rolloff forming method of C-shaped section forging Withdrawn CN109822021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811048625.XA CN109822021A (en) 2018-09-10 2018-09-10 Rolloff forming method of C-shaped section forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811048625.XA CN109822021A (en) 2018-09-10 2018-09-10 Rolloff forming method of C-shaped section forging

Publications (1)

Publication Number Publication Date
CN109822021A true CN109822021A (en) 2019-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811048625.XA Withdrawn CN109822021A (en) 2018-09-10 2018-09-10 Rolloff forming method of C-shaped section forging

Country Status (1)

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CN (1) CN109822021A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110871234A (en) * 2019-11-22 2020-03-10 宁波江丰电子材料股份有限公司 Machining and forming method of annular back plate
CN113020904A (en) * 2021-02-26 2021-06-25 临沂大学 Method and equipment for manufacturing C-shaped inner-opening thin-wall metal annular part

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101279343A (en) * 2008-04-23 2008-10-08 贵州安大航空锻造有限责任公司 Method for rolling and shaping stainless steel special-shaped ring forging
CN102489638A (en) * 2011-12-27 2012-06-13 张家港海陆环形锻件有限公司 Radial and axial roll-forming method for large internal-stage annular piece
CN202893814U (en) * 2012-09-29 2013-04-24 山东建筑大学 Ring rolling machine roller for rolling rings with complicated sections
CN105537474A (en) * 2015-12-25 2016-05-04 贵州航宇科技发展股份有限公司 Manufacturing method for C-shaped section ring forge pieces made from Haynes 188 alloy
CN106825340A (en) * 2017-03-01 2017-06-13 西北工业大学 A kind of blank design method of titanium alloy C-shaped cross section taper ring rolling
CN108213843A (en) * 2016-12-14 2018-06-29 贵州航宇科技发展股份有限公司 A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101279343A (en) * 2008-04-23 2008-10-08 贵州安大航空锻造有限责任公司 Method for rolling and shaping stainless steel special-shaped ring forging
CN102489638A (en) * 2011-12-27 2012-06-13 张家港海陆环形锻件有限公司 Radial and axial roll-forming method for large internal-stage annular piece
CN202893814U (en) * 2012-09-29 2013-04-24 山东建筑大学 Ring rolling machine roller for rolling rings with complicated sections
CN105537474A (en) * 2015-12-25 2016-05-04 贵州航宇科技发展股份有限公司 Manufacturing method for C-shaped section ring forge pieces made from Haynes 188 alloy
CN108213843A (en) * 2016-12-14 2018-06-29 贵州航宇科技发展股份有限公司 A kind of 2219 aluminum alloy C-shaped section rings process for manufacturing forging
CN106825340A (en) * 2017-03-01 2017-06-13 西北工业大学 A kind of blank design method of titanium alloy C-shaped cross section taper ring rolling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110871234A (en) * 2019-11-22 2020-03-10 宁波江丰电子材料股份有限公司 Machining and forming method of annular back plate
CN113020904A (en) * 2021-02-26 2021-06-25 临沂大学 Method and equipment for manufacturing C-shaped inner-opening thin-wall metal annular part

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Application publication date: 20190531

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