CN104438991A - Ring piece radial and axial extend-rolling workblank dimension design method based on casting blank - Google Patents
Ring piece radial and axial extend-rolling workblank dimension design method based on casting blank Download PDFInfo
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- CN104438991A CN104438991A CN201410629533.6A CN201410629533A CN104438991A CN 104438991 A CN104438991 A CN 104438991A CN 201410629533 A CN201410629533 A CN 201410629533A CN 104438991 A CN104438991 A CN 104438991A
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Abstract
The invention provides a ring piece radial and axial extend-rolling workblank dimension design method based on casting blank, and belongs to the field of ring piece machining and forming design. The ring piece radial and axial extend-rolling workblank dimension design method based on casting blank is characterized by comprising the following steps that (1) under the condition that only ring piece axial height reducing, radial wall thickness reducing and diameter enlarging after radial and axial extend-rolling are considered, the extend-rolling ratio K and the specific value eta of the wall thickness reducing amount and the height reducing amount are determined according to the outer diameter D, the inner diameter d, the radial wall thickness b and the axial height h of a ring piece forge piece; (2) the axial height h0 and the radial wall thickness b0 of the workblank are obtained through the formula K=(b0h0)/(bh) and the formula eta = (b0-b)/(h0-h); (3) at last, the outer diameter D0 and the inner diameter d0 of the workblank are acquired according to the principle that the size of the workblank before axial and radial extend-rolling is equal to the size of the ring piece forge piece after extend-rolling and the geometrical relationship D0 = d0+2b0 of the workblank size respectively. According to the ring piece radial and axial extend-rolling workblank dimension design method, the unique workblank size can be simply and precisely determined for ring piece radial and axial extend-rolling based on casting blank, the design efficiency is improved, materials are saved, the production cost is lowered, and the product performance quality is guaranteed.
Description
Technical field
The invention belongs to ring and shape design field, be specifically related to a kind of ring footpath based on strand axial rolling blank dimension method for designing.
Background technology
There is no ring axial height before and after accurately determining the axial rolling in footpath at present to reduce, the method of blank dimension when radial thickness thinning and enlarged-diameter, especially large ring casting and rolling composite forming is processed, if only rely on volume invariance principle before and after the distortion of ring rolling, determine footpath, the distribution of axial deflection, blank dimension needed for acquisition, design process is extremely loaded down with trivial details, disconnect with plant produced is actual, waste material, reduce production efficiency, add production cost, also after making rolling, the appearance and size of ring forging and performance quality can not be guaranteed, be unfavorable for modern production.
Summary of the invention
The object of the present invention is to provide a kind of ring footpath based on strand axial rolling blank dimension method for designing, effectively can overcome the shortcoming that prior art exists.
The present invention seeks to realize like this, it is characterized in that realizing as follows:
(1) when only consider that before and after the axial rolling in footpath, ring axial height reduces, radial thickness is thinning and enlarged-diameter, according to the outer diameter D of ring forging, internal diameter d, radial thickness b and axial height h, determine that rolling is than K and the wall thickness reduction amount ratio η with height decrease, that is:
K＝1+8h (1)
η＝0.908-2.418h (2)
(2) again by K=(b
0h
0)/(bh) and η=(b
0-b)/(h
0-h), obtain blank axial height h
0, radial thickness b
0;
(3) last, equal the principle of ring forging volume after rolling according to blank volume before the axial rolling in footpath, namely
and the geometrical relationship D of blank dimension
0=d
0+ 2b
0, obtain blank outer diameter D respectively
0, internal diameter d
0.So far all sizes of the axial rolling blank in ring footpath based on strand have been determined: D
0, d
0, b
0and h
0.
Advantage of the present invention and good effect are: adopt method for designing of the present invention to realize the axial rolling forming processing in a certain ring footpath, reasonably can determine that rolling is than the value of K and the wall thickness reduction amount value with the ratio η of height decrease, the blank dimension designed is less and unique, improve design efficiency, easy, accurate, meet the requirement to final ring high-performance mass, also for the design of large ring casting and rolling composite forming blank dimension provides scientific and reasonable foundation.Method for designing of the present invention also meets Aeronautics and Astronautics and wind-powered electricity generation field is fastenedly connected the demand of ring to large-scale bearing ring, flange etc.
Accompanying drawing explanation
Fig. 1 be based on the axial rolling in ring footpath of strand after ring forging structural representation.
Fig. 2 be based on the axial rolling in ring footpath of strand before blahk structure schematic diagram.
Detailed description of the invention
As shown in Figure 1, 2, set ring forging to be of a size of: outer diameter D=2.08m, internal diameter d=1.90m, radial thickness b=0.09m, axial height h=0.15m.
1. determine that rolling is than K by formula (1):
K=1+8h (1) substitutes into above formula h=0.15m, draws K=2.2.
2. the ratio η of wall thickness reduction amount and height decrease is determined by formula (2):
η=0.908-2.418h (2) substitutes into above formula h=0.15m, draws η=0.545.
3. again by K=(b
0h
0)/(bh) and η=(b
0-b)/(h
0-h), obtain blank axial height h
0=0.224m, radial thickness b
0=0.132m;
4. last, equal the principle of ring forging volume after rolling according to blank volume before the axial rolling in footpath, namely
and the geometrical relationship D of blank dimension
0=d
0+ 2b
0, obtain blank outer diameter D respectively
0=1.042m, internal diameter d
0=0.778m.
Claims (1)
1., based on a ring footpath axial rolling blank dimension method for designing for strand, it is characterized in that realizing as follows:
(1) when only consider that before and after the axial rolling in footpath, ring axial height reduces, radial thickness is thinning and enlarged-diameter, according to the outer diameter D of ring forging, internal diameter d, radial thickness b and axial height h, determine that rolling is than K and the wall thickness reduction amount ratio η with height decrease, that is:
K＝1+8h (1)
η＝0.908-2.418h (2)
(2) again by K=(b
0h
0)/(bh) and η=(b
0-b)/(h
0-h), obtain blank axial height h
0, radial thickness b
0;
(3) last, equal the principle of ring forging volume after rolling according to blank volume before the axial rolling in footpath, namely
and the geometrical relationship D of blank dimension
0=d
0+ 2b
0, obtain blank outer diameter D respectively
0, internal diameter d
0, so far determined all sizes of the axial rolling blank in ring footpath based on strand: D
0, d
0, b
0and h
0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629533.6A CN104438991B (en) | 2014-11-10 | 2014-11-10 | The axial rolling blank dimension method for designing in a kind of ring footpath based on strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410629533.6A CN104438991B (en) | 2014-11-10 | 2014-11-10 | The axial rolling blank dimension method for designing in a kind of ring footpath based on strand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438991A true CN104438991A (en) | 2015-03-25 |
| CN104438991B CN104438991B (en) | 2016-06-15 |
Family
ID=52886182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410629533.6A Expired - Fee Related CN104438991B (en) | 2014-11-10 | 2014-11-10 | The axial rolling blank dimension method for designing in a kind of ring footpath based on strand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104438991B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785564A (en) * | 2015-04-13 | 2015-07-22 | 太原科技大学 | Method for confirming size of hollow casting blank for extrusion moulding of large-caliber thick-walled tube |
| CN106475499A (en) * | 2016-12-30 | 2017-03-08 | 西南铝业（集团）有限责任公司 | A kind of ring rolling method |
| CN106984787A (en) * | 2017-04-21 | 2017-07-28 | 太原科技大学 | Shaping and quenching, tempering strengthening and toughening treatment method are rolled in a kind of 25Mn steel flanges part casting |
| CN112170749A (en) * | 2020-09-30 | 2021-01-05 | 贵州安大航空锻造有限责任公司 | Ti2Reverse rolling forming method for AlNb-based alloy special-shaped ring piece |
| CN113680938A (en) * | 2021-08-19 | 2021-11-23 | 上海理工大学 | Design method of rotary swaging radial forming blank |
| CN116274784A (en) * | 2022-12-20 | 2023-06-23 | 湖南中创空天新材料股份有限公司 | Method for improving flaw detection qualification rate of aluminum alloy ring finished product |
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| JP2002205103A (en) * | 2001-01-09 | 2002-07-23 | Nkk Corp | Method for rolling ring-like material to be rolled with ring rolling mill and controller |
| CN101176903A (en) * | 2007-09-06 | 2008-05-14 | 刘岷 | Processing method of enlarging cold-rolling of inside and outside spherical surface ferrule piece as well as device thereof |
| CN101829686A (en) * | 2010-05-06 | 2010-09-15 | 西北工业大学 | Method for determining dimensions of ring radially-axially rolled blank |
| CN102886473A (en) * | 2012-08-31 | 2013-01-23 | 太原科技大学 | Method for determining dimension of ring casting-rolling combined formed blank |
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2014
- 2014-11-10 CN CN201410629533.6A patent/CN104438991B/en not_active Expired - Fee Related
Patent Citations (4)
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| JP2002205103A (en) * | 2001-01-09 | 2002-07-23 | Nkk Corp | Method for rolling ring-like material to be rolled with ring rolling mill and controller |
| CN101176903A (en) * | 2007-09-06 | 2008-05-14 | 刘岷 | Processing method of enlarging cold-rolling of inside and outside spherical surface ferrule piece as well as device thereof |
| CN101829686A (en) * | 2010-05-06 | 2010-09-15 | 西北工业大学 | Method for determining dimensions of ring radially-axially rolled blank |
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Non-Patent Citations (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785564A (en) * | 2015-04-13 | 2015-07-22 | 太原科技大学 | Method for confirming size of hollow casting blank for extrusion moulding of large-caliber thick-walled tube |
| CN106475499A (en) * | 2016-12-30 | 2017-03-08 | 西南铝业（集团）有限责任公司 | A kind of ring rolling method |
| CN106984787A (en) * | 2017-04-21 | 2017-07-28 | 太原科技大学 | Shaping and quenching, tempering strengthening and toughening treatment method are rolled in a kind of 25Mn steel flanges part casting |
| CN106984787B (en) * | 2017-04-21 | 2019-03-05 | 太原科技大学 | Forming and quenching, tempering strengthening and toughening treatment method are rolled in a kind of casting of 25Mn steel flange part |
| CN112170749A (en) * | 2020-09-30 | 2021-01-05 | 贵州安大航空锻造有限责任公司 | Ti2Reverse rolling forming method for AlNb-based alloy special-shaped ring piece |
| CN113680938A (en) * | 2021-08-19 | 2021-11-23 | 上海理工大学 | Design method of rotary swaging radial forming blank |
| CN116274784A (en) * | 2022-12-20 | 2023-06-23 | 湖南中创空天新材料股份有限公司 | Method for improving flaw detection qualification rate of aluminum alloy ring finished product |
| CN116274784B (en) * | 2022-12-20 | 2023-12-15 | 湖南中创空天新材料股份有限公司 | Method for improving flaw detection qualification rate of aluminum alloy ring finished product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104438991B (en) | 2016-06-15 |
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Granted publication date: 20160615 Termination date: 20161110 |