CN100546759C - The roll-forming method of big-and-middle-sized solid disk forging - Google Patents
The roll-forming method of big-and-middle-sized solid disk forging Download PDFInfo
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- CN100546759C CN100546759C CNB2006101102065A CN200610110206A CN100546759C CN 100546759 C CN100546759 C CN 100546759C CN B2006101102065 A CNB2006101102065 A CN B2006101102065A CN 200610110206 A CN200610110206 A CN 200610110206A CN 100546759 C CN100546759 C CN 100546759C
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Abstract
The invention discloses a kind of roll-forming method of big-and-middle-sized solid disk forging, rolling mill practice is: deformable metal bar → heating → jumping-up (forcing press) → biscuit → die mould (forcing press) → solid disk → heating → installation location (elongator) → axially rolled (elongator) → measuring and calculating size → solid disk forging.Rolling axial rolling force is 2 * 10
5Kg～5 * 10
5Kg, broadening speed is 5mm/s～15mm/s.Rolling disk forge piece is of a size of: external diameter Φ 800mm～Φ 3000mm, axial width 30mm～250mm.And by the conical surface shape that changes the awl roller, the disk forge piece that size can roll out different card die cavities.Adopt this method can realize that the continuous local plastic distortion of disk forge piece is shaped, with the dried heavy forging of skinny device.
Description
Technical field
The present invention relates to the roll-forming method of a kind of roll-forming method of forging, particularly big-and-middle-sized solid disk forging.
Background technology
Big-and-middle-sized disk forge piece, forging such as the compressor disc of using as heavy ground gas turbine and the turbine disk, the main at present in the world heavy hydraulic press that adopts carries out die forging or open die forging shaping, and big-and-middle-sized disk forge piece adopts the hydraulic press excellent suitability for press forming owing to have the following disadvantages the forging that causes disk forge piece and apply difficulty:
The required tonnage of equipment is big, for general deformable metal material such as disk forge pieces such as structural steel, stainless steel, needs 5 * 10
7The heavy hydraulic press ability forging and molding that kg (50,000 tons) level is above; For the disk forge piece of materials such as the metal material of difficulty distortion such as difficult wrought superalloy, even will be with 1 * 10
8The heavy hydraulic press ability forging and molding that kg (100,000 tons) level is above, promptly disk forge piece needs bigger external force could be out of shape shaping, because equipment tonnage causes the manufacture difficulty of equipment to strengthen greatly, the investment amount of equipment is also bigger;
Forge the used mould of disk forge piece to the having relatively high expectations of material, mould is bigger with the material amount, and mould is easy to loss, and expenses such as the processing and manufacturing of mould are higher, and need manufacture and design different forging molds to the disk forge piece of difformity and specification;
Large-scale disk forge piece is when excellent suitability for press forming, because the lifting surface area of dish face is bigger, makes the inhomogeneous tissue odds of forging that causes of distortion of forging even, thereby influences the performance of forging;
Adopt open die forging to forge disk forge piece, can only forge patty dish type blank generally speaking, need just can obtain the required shape of disk forge piece, not only increased processing cost, but also wasted a large amount of metal materials through a large amount of machining;
Adopt die forging or open die forging to forge big-and-middle-sized disk forge piece, owing to be to adopt the mode of the whole card of forging and pressing to realize coiling the base distortion, generally speaking, adding of dish base is showing tremendous enthusiasm inferior more with the forging number of times, the surface oxidation decortication phenomenon of dish base is more frequent, and the forging ' s block dimension precision is not high, is difficult to produce the forging near part shape, promptly is difficult for realizing the near-net-shape of forging;
Adopt die forging or open die forging to forge big-and-middle-sized disk forge piece, be not easy to realize the automation and the flexibility of forging process, more not satisfied many kinds, the market demand in batches that becomes;
Adopt heavy hydraulic press to forge and press big-and-middle-sized disk forge piece, poor working environment, labour intensity is big, and productivity ratio is low, and energy consumption is higher;
Rolling technique for forging, " ring rolling theory and technology " (Hua Lin, Huang Xinggao, Zhu Chundong work, China Machine Press, October calendar year 2001 front page)～the 3 page of the 1st row of the 2nd page of the 19th row in the book and～the 229 page of the 21st row of the 223rd page of the 16th row footpath-axially rolled technology of disclosing a kind of forging, but adopt this technology rolling be that ring is an annular forging piece, what this technology will solve is the reaming problem of ring, rather than the shaping problem of disk forge piece.
In view of this, the invention provides a kind of roll-forming method of big-and-middle-sized solid disk forging.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of roll-forming method that uses less axial rolling force to implement big-and-middle-sized solid disk forging, the local continuous modification of the axial plasticity of this method during by rolling disk forge piece is shaped disk forge piece, to realize with the dried heavy forging of skinny device.
For solving the problems of the technologies described above, the roll-forming method of the big-and-middle-sized solid disk forging of the present invention is realized by the following technical solutions:
At first provide to have home roll, epicone roller, bore the elongator of roller and two deflector rolls down, elongator possesses to be made above-mentioned each rolled parts rotate or move and can regulate and rotate or the control device of translational speed and the rotation by above-mentioned each parts or move the measurement mechanism of calculating the diskware size; Also need to be provided for the common forging press of forging cogging simultaneously; Operation according to the following steps then:
The first step is upset as biscuit after the bar by the deformable metal material of specification blanking is heated to deformation temperature on forging press, biscuit is heated to is placed on that die mould becomes solid disk on the forging press with top swage and anvil swage after the deformation temperature again;
Second step was heated to the dish base that the manipulator with charging car clamps the threading elongator after the deformation temperature, and the following card of coiling base is placed on down bores on the roller, and its periphery is near home roll; Start elongator, manipulation epicone roller is bored the roller direction vertically downward and is moved up to epicone roller and the following roller card up and down of clamping disk(-sc) base respectively of boring, and the cylindrical end face that coils base is pinned by home roll and two deflector rolls, and the release mechanism hand is finished the location of coiling base;
The 3rd step, thereby handle home roll, epicone roller and bore roller down by the rotation of rolling needed direction rotation drive dish base, two deflector rolls coil and then that base rotates together and support and stable disk base, handle the epicone roller simultaneously and make axial feed motion downwards, thus the epicone roller and down the awl roller along axially rolled its card of dish base and outside its radial level, move the axially rolled of realization dish base;
In the 4th step, under the effect of axial rolling force, the dish base is radially with certain speed broadening, and the continuous local plastic distortion that the generation axial width reduces, external diameter enlarges, profile is shaped; When the dish base changes rolling when making its shape and size reach requirement through repeatedly more, rolling deformation finishes, and obtains solid disk forging.
In the roll forming process of above-mentioned big-and-middle-sized solid disk forging, the axial rolling force that the card of described dish base is subjected to epicone roller and following awl roller is 2 * 10
5Kg～5 * 10
5Kg, broadening speed is 5mm/s～15mm/s.
Adopt the roll-forming method of big-and-middle-sized solid disk forging of the present invention, the size range of disk forge piece that can be rolling is: external diameter Φ 800mm～Φ 3000mm, axial width 30mm～250mm.
When adopting the roll-forming method of big-and-middle-sized solid disk forging of the present invention to be rolled, the outside dimension of described disk forge piece is calculated by the radial displacement of two deflector rolls, the axial width size is calculated by the axial feeding of epicone roller, and the radial dimension of card die cavity is calculated by the radial feeds of epicone roller.
Compared with prior art, beneficial effect of the present invention is as follows:
The roll-forming method of big-and-middle-sized solid disk forging of the present invention, owing to adopt the axially rolled disk forge piece that makes to produce that axial width reduces, external diameter enlarges the continuous local plastic distortion that realizes forging, metal flow both can be at circumferencial direction when rolling, again can be axially, this phenomenon meets law of minimum resistance fully.Compare with the die forging or the open die forging method of big-and-middle-sized solid disk forging, the present invention has following beneficial effect:
With the dried heavy forging of skinny device, required maximum rolling force is 5 * 10 when rolling
5Kg (500 tons), be far smaller than die forging or open die forging required 5 * 10
7Kg (50,000 tons)～1 * 10
8The pressure of kg (100,000 tons), be that diskware only needs when rolling less roll-force can realize that just plastic deformation is shaped, thereby can make the forging equipment miniaturization, the manufacture difficulty of forging equipment and also corresponding the reducing of investment help the manufacturing of big-and-middle-sized disk forge piece and apply;
Save die cost, under less roll-force, make disk forge piece distortion shaping owing to using home roll and boring roller when rolling, and just can roll out the disk forge piece of different size, thereby can save the expense such as manufacturing processing, loss of a large amount of mold materials and mould thereof with same set of the rolling parts;
Can the good disk forge piece of obtained performance, owing to adopt the mode of continuous local plastic distortion, make the distortion of forging more even when rolling, thereby can obtain the performance that the uniform forging of interior tissue improves forging;
Can realize the near-net-shape of disk forge piece, roll out disk forge piece near part shape and size; When rolling since blank add showing tremendous enthusiasm time and rolling number of times less (general 1～3 time), reduced the surface oxidation decortication phenomenon of blank, help improving the dimensional accuracy of disk forge piece, thereby can save a large amount of metal materials and machine adds expense;
Can realize the Plastic Forming of difficult deformable metal material disk forge piece,, adopt the mode of continuous local plastic distortion, can realize just that by the repeat-rolling of small deformation amount repeatedly plastic deformation is shaped for the materials such as high temperature alloy of difficulty distortion;
Operation of rolling automaticity is higher, and disk forge piece is by the rotation of automatic controlled rolling parts and moves and realize continuous modification that adding does not need the design specialized mould when rolling, thereby can satisfy many kinds, becomes the market demand in batches; Also can improve poor working environment simultaneously, reduce labour intensity, boost productivity and save energy and reduce the cost.
By above explanation as can be known, appearance of the present invention, realized disk forge piece from die forging or open die forging to rolling great technological progress, realized that also forging is from rolling the great technological progress that hoop rolls dish simultaneously.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the manufacture craft flow chart of solid disk.
Fig. 2 is the roll forming process chart of solid disk forging.
Fig. 3, Fig. 4, Fig. 5 are the roll forming technical process state diagrams of solid disk forging.Wherein:
Fig. 3 is the state diagram that the dish base is put into elongator.
Fig. 4 is the axially rolled state diagram of dish base.
Fig. 5 is the dish base operation of rolling state diagram of overlooking direction.
Fig. 6 is the solid disk forging of roll forming
The specific embodiment
Implement the roll-forming method of big-and-middle-sized solid disk forging of the present invention, the home roll 7 that has Fig. 3～shown in Figure 5, epicone roller 8 need be provided, bore the elongator 6 of roller 9 and two deflector rolls 10 down, elongator 6 should possess to be made above-mentioned each rolled parts rotate or move by direction as shown and can regulate and rotate or the control device of translational speed and the rotation by above-mentioned each parts or move the measurement mechanism of external diameter, axial width size and the card cavity dimension of calculating diskware.Also need to be provided for the common forging press of forging cogging simultaneously.Operation according to the following steps then:
Step 1: the making of solid disk 5.Fig. 1 shows the manufacture craft flow process of solid disk, on forging press, be upset as biscuit 2 after bar 1 by the deformable metal material of specification blanking is heated to deformation temperature, biscuit 2 be heated to be placed on that die mould becomes solid disk 5 on the forging press with top swage 3 and anvil swage 4 after the deformation temperature again.
Step 2: dish base 5 installations.As shown in Figure 3, dish base 5 is heated to after the deformation temperature manipulator with charging car clamps and put into elongator 6, the following card of dish base 5 is placed on down bores on the roller 9, and its periphery is near home roll 7.
Step 3: dish base 5 is located in elongator 6.Start elongator 6, as shown in Figure 3 and Figure 4, handle epicone roller 8 and bore the card up and down that roller 9 directions move up to epicone roller 7 and bore roller 8 difference clamping disk(-sc) bases 5 down vertically downward, simultaneously, the cylindrical end face of dish base 5 pins (as shown in Figure 5) by home roll 7 and two deflector rolls 10, the release mechanism hand, the location of finishing dish base 5.
Step 4: coil the axially rolled of base 5.Thereby handling home roll 7, epicone roller 8 and following awl roller 9 rotates by direction shown in Figure 5 by direction rotation drive dish base 5 shown in Figure 4, two deflector rolls 10 coil and then that base 5 rotates together and support and stable disk base 5, handle epicone roller 8 simultaneously and make axial feed motion downwards, thereby epicone roller 8 and following awl roller 9 edges are coiled axially rolled its card of bases 5 and move the axially rolled of realization dish base 5 outside its radial level.Under the effect of axial rolling force, dish base 5 is radially with certain speed broadening, coiling the dish of base 5 and being subjected to epicone roller 8 is 2 * 105kg～5 * 105kg with the axial rolling force of boring roller 9 down, broadening speed is 5mm/s～15mm/s, and described broadening speed is meant the speed that the outer shroud of rolling hour indicator base 5 radially increases.
Step 5: roll out solid disk forging 11.In the operation of rolling, metal is from inside to outside made Radial Flow, and dish base 5 produces that the axial width degree reduce, external diameter enlarges, the continuous local plastic distortion that profile is shaped, and when dish base 5 changes rolling when making its shape and size reach requirement through repeatedly more, rolling deformation finishes.It is Guaranteed with the conical surface of boring roller 9 down that the axial dimension of rolling hour indicator base 5 and shape are in epicone roller 8 all the time, and the uniformity of epicone roller 8 and shape, cooperation and the motion of awl roller 9 down can make the shape and size of card up and down of coiling base 5 consistent.Axial feeding by epicone roller 8 can measuring and calculating dish base 5 the axial width size, can calculate the radial dimension of card die cavity by its radial feeds; Deflector roll 10 rotate with the cylindrical of dish base 5 and by its radial displacement can measuring and calculating dish base 5 outside dimension.The operation of rolling finishes to obtain solid disk forging 11.
When adopting the rolling solid disk forging 11 of the roll-forming method of big-and-middle-sized solid disk forging of the present invention, under epicone roller 8 and following awl roller 9 conical surface shapes, the size situation consistent, by the conical surface shape that changes the awl roller, the disk forge piece that size can roll out different card die cavities with cooperation.
Adopt the size range of the rolling solid disk forging of roll-forming method of big-and-middle-sized solid disk forging of the present invention to be: external diameter is Φ 800mm～Φ 3000mm, and axial width is 30mm～250mm.
Claims (4)
1, a kind of roll-forming method of big-and-middle-sized solid disk forging, at first provide to have home roll (7), epicone roller (8), bore the elongator (6) of roller (9) and two deflector rolls (10) down, elongator (6) possesses to be made above-mentioned each rolled parts rotate or move and can regulate and rotate or the control device of translational speed and the rotation by above-mentioned each parts or move the measurement mechanism of calculating the diskware size; Also need to be provided for the common forging press of forging cogging simultaneously; Operation according to the following steps then:
The first step, on forging press, be upset as biscuit (2) after bar (1) by the deformable metal material of specification blanking is heated to deformation temperature, again biscuit (2) be heated to that die mould becomes solid disk (5) on the forging press that is placed on have top swage (3) and anvil swage (4) after the deformation temperature;
Second step was heated to after the deformation temperature manipulator with charging car to dish base (5) and clamps and put into elongator (6), and the following card of coiling base (5) is placed on down bores on the roller (9), and its periphery is near home roll (7); Start elongator (6), roller (9) direction of manipulation epicone roller (8) boring vertically downward moves up to epicone roller (8) and bores roller (9) card up and down of clamping disk(-sc) base (5) respectively down, the cylindrical end face of dish base (5) is pinned by home roll (7) and two deflector rolls (10), the release mechanism hand, the location of finishing dish base (5);
The 3rd step, handle home roll (7), epicone roller (8) and down awl roller (9) thus rotate by rolling needed direction rotation drive dish base (5), two deflector rolls (10) coil and then that base (5) rotates together and support and stable disk base (5), handle epicone roller (8) simultaneously and make axial feed motion downwards, epicone roller (8) and down awl roller (9) along dish base (5) thus axially rolled its card and outside its radial level, move the axially rolled of realization dish base (5);
In the 4th step, under the effect of axial rolling force, dish base (5) is radially with certain speed broadening, and the continuous local plastic distortion that the generation axial width reduces, external diameter enlarges, profile is shaped; When dish base (5) changes rolling when making its shape and size reach requirement through repeatedly more, rolling deformation finishes, and obtains solid disk forging (11).
2, according to the roll-forming method of the described big-and-middle-sized solid disk forging of claim 1, it is characterized in that: the axial rolling force that the card of described dish base (5) is subjected to epicone roller (8) and following awl roller (9) is 2 * 10
5Kg～5 * 10
5Kg, broadening speed is 5mm/s～15mm/s.
3, according to the roll-forming method of the described big-and-middle-sized solid disk forging of claim 1, it is characterized in that: the outside dimension of described disk forge piece is Φ 800mm～Φ 3000mm, and the axial width size is 30mm～250mm.
4, according to the roll-forming method of the described big-and-middle-sized solid disk forging of claim 3, it is characterized in that: the outside dimension of described disk forge piece is calculated by the radial displacement of two deflector rolls (10), the axial width size is calculated by the axial feeding of epicone roller (8), and the radial dimension of card die cavity is calculated by the radial feeds of epicone roller (8).
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| CN100546759C true CN100546759C (en) | 2009-10-07 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712063B (en) * | 2009-11-27 | 2011-06-22 | 贵州安大航空锻造有限责任公司 | Rolling forming method of large and medium scale stainless steel solid disk forgings |
| CN101791668B (en) * | 2010-03-19 | 2011-11-02 | 贵州安大航空锻造有限责任公司 | Roll forming method of large and medium aluminum alloy solid disk forging |
| CN102179463B (en) * | 2010-12-31 | 2012-09-05 | 莫亚夫 | Blank-making rolling method for conical hub of automotive transmission |
| CN102240762B (en) * | 2011-05-16 | 2013-05-15 | 天津天海精密锻造有限公司 | Forging and forming process of complex circular forged piece in specific metal flow line |
| CN105396997A (en) * | 2015-12-02 | 2016-03-16 | 贵州安大航空锻造有限责任公司 | Isotropic rolling method for bearing steel rectangular ring |
| CN105817299B (en) * | 2016-02-02 | 2018-12-25 | 机械科学研究总院先进制造技术研究中心 | Hydraulic parallel feed mechanism for diskware spreading |
| CN112264561B (en) * | 2020-12-15 | 2021-04-20 | 中国重型机械研究院股份公司 | Method and device for coordinated control of axial roller and radial main roller of ring rolling mill |
| CN112719928B (en) * | 2020-12-21 | 2021-09-28 | 武汉理工大学 | Intelligent production method and system of annular forging |
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- 2006-12-06 CN CNB2006101102065A patent/CN100546759C/en active Active
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