CN104438991B - The axial rolling blank dimension method for designing in a kind of ring footpath based on strand - Google Patents

The axial rolling blank dimension method for designing in a kind of ring footpath based on strand Download PDF

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Publication number
CN104438991B
CN104438991B CN201410629533.6A CN201410629533A CN104438991B CN 104438991 B CN104438991 B CN 104438991B CN 201410629533 A CN201410629533 A CN 201410629533A CN 104438991 B CN104438991 B CN 104438991B
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China
Prior art keywords
ring
rolling
blank
axial
footpath
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Expired - Fee Related
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CN201410629533.6A
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CN104438991A (en
Inventor
秦芳诚
李永堂
齐会萍
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Taiyuan University of Science and Technology
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Taiyuan University of Science and Technology
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Abstract

The axial rolling blank dimension method for designing in a kind of ring footpath based on strand, belong to ring and shape design field, it is characterized in that realizing as follows: 1) when only considering before and after the axial rolling in footpath that ring axial height reduces, radial thickness is thinning and when enlarged-diameter, according to the outer diameter D of ring forging, internal diameter d, radial thickness b and axial height h, it is determined that rolling is than the ratio η of K and wall thickness reduction amount and height reduction amount; 2) again by K=(b0h0)/(bh) and η=(b0-b)/(h0-h), obtain blank axial height h0, radial thickness b0; 3) last, according to the geometrical relationship D equal to the principle of ring forging volume after rolling and blank dimension of the blank volume before the axial rolling in footpath0=d0+2b0, obtain blank outer diameter D respectively0, internal diameter d0. The present invention is for the axial rolling in ring footpath based on strand, it is possible to easy, be accurately determined unique blank dimension, improves design efficiency, saved material and reduces production cost, it is ensured that properties of product quality.

Description

The axial rolling blank dimension method for designing in a kind of ring footpath based on strand
Technical field
The invention belongs to ring and shape design field, be specifically related to the axial rolling blank dimension method for designing in a kind of ring footpath based on strand.
Background technology
There is no at present and be accurately determined ring axial height reduction before and after the axial rolling in footpath, radial thickness is thinning and the method for blank dimension when enlarged-diameter, process especially for large ring casting and rolling composite forming, if only relying only on volume invariance principle before and after the deformation of ring rolling, determine footpath, the distribution of axial deflection, obtain required blank dimension, design process is extremely loaded down with trivial details, disconnection actual in plant produced, waste material, reduce production efficiency, add production cost, also after making rolling, the overall dimensions of ring forging and performance quality can not be guaranteed, it is unfavorable for modern production.
Summary of the invention
It is an object of the invention to provide the axial rolling blank dimension method for designing in a kind of ring footpath based on strand, can effectively overcome the shortcoming that prior art exists.
The object of the invention is realized in, and it is characterized in that realizing as follows:
(1) when only considering before and after the axial rolling in footpath that ring axial height reduces, radial thickness is thinning and when enlarged-diameter, according to the outer diameter D of ring forging, internal diameter d, radial thickness b and axial height h, determine the rolling ratio η than K and wall thickness reduction amount and height reduction amount, it may be assumed that
K=1+8h (1)
η=0.908-2.418h (2)
(2) again by K=(b0h0)/(bh) and η=(b0-b)/(h0-h), obtain blank axial height h0, radial thickness b0;
(3) last, according to blank volume before the axial rolling in footpath equal to the principle of ring forging volume after rolling, namelyAnd the geometrical relationship D of blank dimension0=d0+2b0, obtain blank outer diameter D respectively0, internal diameter d0. So far all sizes of the ring footpath axial rolling blank based on strand are had determined that: D0、d0、b0And h0
Advantages of the present invention and have the benefit effect that and adopt the method for designing of the present invention to realize the axial rolling forming processing of a certain ring footpath, can reasonably determine the value of the rolling value than K and wall thickness reduction amount and the ratio η of height reduction amount, the blank dimension designed is less and unique, improve design efficiency, easy, accurate, meet the requirement to final ring high-performance mass, also provide scientific and reasonable foundation for the design of large ring casting and rolling composite forming blank dimension.The method for designing of the present invention also meets Aeronautics and Astronautics and wind-powered electricity generation field and large-scale bearing ring, flange etc. is fastenedly connected the demand of ring.
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 reduction amount 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=(b0h0)/(bh) and η=(b0-b)/(h0-h), obtain blank axial height h0=0.224m, radial thickness b0=0.132m;
4. last, according to blank volume before the axial rolling in footpath equal to the principle of ring forging volume after rolling, namelyAnd the geometrical relationship D of blank dimension0=d0+2b0, obtain blank outer diameter D respectively0=1.042m, internal diameter d0=0.778m.

Claims (1)

1. the axial rolling blank dimension method for designing of the ring footpath based on strand, it is characterised in that realize as follows:
(1) when only considering before and after the axial rolling in footpath that ring axial height reduces, radial thickness is thinning and when enlarged-diameter, according to the outer diameter D of ring forging, internal diameter d, radial thickness b and axial height h, determine the rolling ratio η than K and wall thickness reduction amount and height reduction amount, it may be assumed that
K=1+8h (1)
η=0.908-2.418h (2)
(2) again by K=(b0h0)/(bh) and η=(b0-b)/(h0-h), obtain blank axial height h0, radial thickness b0;
(3) last, according to blank volume before the axial rolling in footpath equal to the principle of ring forging volume after rolling, namelyAnd the geometrical relationship D of blank dimension0=d0+2b0, obtain blank outer diameter D respectively0, internal diameter d0, so far have determined that all sizes of the ring footpath axial rolling blank based on strand: D0、d0、b0And h0
CN201410629533.6A 2014-11-10 2014-11-10 The axial rolling blank dimension method for designing in a kind of ring footpath based on strand Expired - Fee Related CN104438991B (en)

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

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CN104438991B true CN104438991B (en) 2016-06-15

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785564B (en) * 2015-04-13 2016-11-23 太原科技大学 Large-sized heavy-wall tube extrusion molding hollow casting blank method for determining dimension
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
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3627654B2 (en) * 2001-01-09 2005-03-09 Jfeスチール株式会社 Rolling method and control device for ring-shaped material to be rolled by ring rolling mill
CN101176903B (en) * 2007-09-06 2010-05-19 刘岷 Processing method of enlarging cold-rolling of inside and outside spherical surface ferrule piece as well as device thereof
CN101829686B (en) * 2010-05-06 2011-08-17 西北工业大学 Method for determining dimensions of ring radially-axially rolled blank
CN102886473B (en) * 2012-08-31 2014-06-18 太原科技大学 Method for determining dimension of ring casting-rolling combined formed blank

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