CN104624890A - Forging method for lifting ring forged part - Google Patents
Forging method for lifting ring forged part Download PDFInfo
- Publication number
- CN104624890A CN104624890A CN201410739821.7A CN201410739821A CN104624890A CN 104624890 A CN104624890 A CN 104624890A CN 201410739821 A CN201410739821 A CN 201410739821A CN 104624890 A CN104624890 A CN 104624890A
- Authority
- CN
- China
- Prior art keywords
- forging
- suspension ring
- bending
- forming
- stock
- 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.)
- Granted
Links
Landscapes
- Forging (AREA)
Abstract
The invention relates to a forging method for a lifting ring forged part. The forging method includes the steps of blanking, drawing, pre-forming bending and final-forming bending. According to the pre-forming bending step, initial bending is firstly performed, namely, a forging stock is placed between an upper flat anvil and a lower flat anvil of a forging hammer and forged through a male mold and a female mold to form a middle transition circular arc, and then the forging stock is bent by 90 degrees through upper pressing pad side faces and a lower forming mold. According to the final-forming bending step, the forging stock is forged and formed through an upper pressing pad front face and a lower forming mold. Compared with the prior art, the forging method has the advantages that the forging steps are reasonably set, the pre-forming bending step is set before the final-forming bending step and composed of initial bending and 90-degree bending, and in this way, the symmetry degree and size precision of the bent workpiece are ensured; the corresponding forming molds are adopted, in this way, the difficulty of lifting ring forging is greatly lowered, and the success rate of forging is greatly increased; labor intensity of workers is lowered, and economic benefits of an enterprise are increased.
Description
Technical field
The present invention relates to a kind of forging method of forging, particularly relate to a kind of forging method of suspension ring forging.
Background technology
The suspension ring that steel mill hangs molten steel conventional are forging, its both sides are hanger, centre is the elongate curved bar (as shown in Figure 1) of square-section, its forging quality is directly connected to the safety and reliability of molten steel handling, and its forging process difficulty is larger, be swaged into rate extremely low, consume a large amount of manpower and materials.
Summary of the invention
The invention provides a kind of forging method of suspension ring forging, by reasonable set forging process, and adopt corresponding molding fetal, the difficulty that suspension ring are forged reduces greatly, and the rate that is swaged into improves greatly, reduces labor strength, adds Business Economic Benefit.
In order to achieve the above object, the present invention realizes by the following technical solutions:
A kind of forging method of suspension ring forging, comprise the bending and final shaping unit bending operation of blanking, pulling, preformed, described prebuckling operation is first curved through just, middle transition circular arc is formed with punch and die forging and stamping between the upper and lower flat anvil being placed on forging hammer by forging stock, carry out 90 degree with pressure pad side and compacted under tire to forging stock again to bend: at final shaping unit bending operation, with pressure pad front and compacted under tire to forging stock forging molding.
Have identical circular shape in the middle part of described punch and die, its radius is (1.5 ~ 2) r, wherein r-suspension ring forging knee inner radius, and corresponding central angle is 30 ° ~ 45 °.
Described upper pressure pad is made up of bent plate, base plate and riser, and bent plate both sides are connected with base plate, and riser is fixed between bent plate and base plate, and shape and the suspension ring forging curved shape of bent plate adapt.
Described compacted under tire adds vertical fixed block by V-type anvil under hydraulic press and makes, and adopts arc transition between the medial surface of vertical fixed block and upper surface.
Described forging stock through just forging, establishes ladder platform in flexural loading section before preformed is bending.
The final forging temperature of described final shaping unit bending operation is 800 ± 30 DEG C, the ascending applying of hammer force, and the hammering time is 5 ~ 10 minutes.
Compared with prior art, the invention has the beneficial effects as follows:
1) reasonable set forging process, establishes prebuckling molding procedure before final molding bending operation, and preformed bending operation is made up of first curved and 90 degree of bending two processes again, guarantees symmetry and the dimensional accuracy of workpiece after bending;
2) adopt corresponding molding fetal, the difficulty that suspension ring are forged reduces greatly, and the rate that is swaged into improves greatly;
3) reduce labor strength, add Business Economic Benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of suspension ring forging of the present invention.
Fig. 2 is the structural representation of punch of the present invention and die.
Fig. 3 is the structural representation of upper pressure pad of the present invention.
Fig. 4 is the structural representation of compacted under tire of the present invention.
Fig. 5 is suspension ring forging stock blank schematic diagram of the present invention.
Fig. 6 is the forging stock schematic diagram after first curved of the present invention.
The schematic diagram of Fig. 7 when to be forging stock of the present invention bending through 90 degree.
Fig. 8 is the schematic diagram of forging stock of the present invention when final brake forming.
In figure: 1. anvil on the vertical fixed block 6. forging stock 61. ladder platform 7. of pressure pad 41. bent plate 42. base plate 43. riser 5. compacted under tire 51. times V-type anvils 52. on suspension ring forging 11. hanger 12. bent stick 2. punch 3. die 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
The forging method of a kind of suspension ring forging of the present invention, comprise the bending and final shaping unit bending operation of blanking, pulling, preformed, described prebuckling operation is first curved through just, forge and press with punch 2 and die 3 between the upper and lower flat anvil being placed on forging hammer by forging stock 6 and form middle transition circular arc (see Fig. 6), then carry out 90 degree bending (see Fig. 7) with pressure pad 4 side and compacted under tire 5 pairs of forging stocks 6; At final shaping unit bending operation, with pressure pad 4 front and compacted under tire 5 pairs of forging stock 6 forging moldings (see Fig. 8).
Seeing Fig. 2, is the structural representation of punch 2 of the present invention and die 3.Have identical circular shape in the middle part of described punch 2 and die 3, its radius is (1.5 ~ 2) r, wherein r-suspension ring forging 1 knee inner radius, and corresponding central angle is 30 ° ~ 45 °.
Seeing Fig. 3, is the structural representation of upper pressure pad 4 of the present invention.Described upper pressure pad 4 is made up of bent plate 41, base plate 42 and riser 43, and bent plate 41 both sides are connected with base plate 42, and riser 43 is fixed between bent plate 41 and base plate 42, and shape and suspension ring forging 1 curved shape of bent plate 441 adapt.
Seeing Fig. 4, is the structural representation of compacted under tire 5 of the present invention.Described compacted under tire 5 adds vertical fixed block 52 by V-type anvil 51 under hydraulic press and makes, and adopts arc transition between the medial surface of vertical fixed block 52 and upper surface.
Described forging stock 6 through just forging, establishes ladder platform 61 in flexural loading section before preformed is bending.
The final forging temperature of described whole brake forming operation is 800 ± 30 DEG C, the ascending applying of hammer force, and the hammering time is 5 ~ 10 minutes.
Following examples are implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention are not limited to following embodiment.In following embodiment, method therefor is conventional method if no special instructions.
[embodiment 1]
Forge a suspension ring forging 1, as shown in Figure 1, its both sides hanger 11 Breadth Maximum is 380mm, and bent stick 12 is 200 × 200mm square-section, and knee inner radius is 350mm, and outer radius is 550mm; Both sides hanger 11 hole centre-to-centre spacing 1600mm, lateral extent 1250mm outside center, hole to knee.
Mold Making process is as follows:
Punch 2 and recessed 3 molded works: first by required circular arc and angle processing die 3, then forge a rectangle blank, make punch 2 with the anti-extrusion forming of die 3.
Upper pressure pad 4 makes: blanking pulls out, make bent plate 41 after bending, the inner shape after its curved profile bends with forging stock 6 final shaping unit is identical, is welded as a whole in bent plate 41 both sides and base plate 42, weld together with riser 43 and base plate 42 in the middle part of bent plate 41, riser 43 mainly rises and reinforces supporting role.
Compacted under tire 5 makes: consider that compacted under tire 5 bearing capacity is large, and overall dimensions are comparatively large, utilizes V-type anvil 51 under existing 2500t hydraulic press, can save as several considerable instrument expense.Only need add vertical fixed block 52 at lower V-type anvil 51V shape opening part, make extended distance meet the needs of shaping suspension ring.
Forging process is as follows:
Seeing Fig. 5, is suspension ring forging stock 6 blank schematic diagram of the present invention.For ensureing that forging has larger forging ratio and good plasticity, thus ensure carrying out smoothly of BENDING PROCESS, adopt hydraulic press to become to be of a size of intermediate cross-section by 1.5 tons of ingot coggings for (380 × 380) mm, long 1700mm, two end sections are the blank of (400 × 400) mm.
Blank is put between the upper and lower flat anvil of 3 tons of hammers, uses punch 2 and die 3 pairs of suspension ring forging stock 6 flexural centers to carry out just curved, is convenient to locate in follow-up BENDING PROCESS, is then chopped by burr only, with anti-fold.
Seeing Fig. 6, is forging stock 6 schematic diagram after first curved of the present invention.The dimensional accuracy of 6 shaping rear two hanger 11 pitch-rows is forged in order to ensure suspension ring, We conducted neutral line for several times to calculate, shape and the optimum length of preformed bar is repeatedly verified by simulation and plasticity mud simulation, reserved amount of tension is 20mm, i.e. 3900mm-3880mm=20mm, because bending force need be executed in centre in BENDING PROCESS, thinning when flexural deformation in order to prevent in the middle part of suspension ring, establish ladder platform 61 at flexural loading place, guarantee that its cross section is rectangle after brake forming, thus meet the requirement of drawing.
See Fig. 7, schematic diagram when to be forging stock 6 of the present invention bending through 90 degree.In order to ensure at suspension ring center curvature, in employing, pressure pad 4 is longitudinally placed and is exerted pressure, and by an angle of 90 curved for suspension ring forging stock 6, bending the providing of the final shaping unit for next step is located accurately.
Seeing Fig. 8, is the schematic diagram of forging stock of the present invention when final brake forming.It is last operation that final shaping unit bends, and is also vital operation.First, in employing, pressure pad 4 is laterally placed and is exerted pressure, semi-finished product forging should within the scope of 900 ± 30 DEG C forging molding, when final shaping unit can be made like this to bend, forging just reaches final forging temperature 800 ± 30 DEG C, thus decreases the impact of temperature stress on appearance and size.Should take into full account that final shaping unit bends the small recovery of rear metal generation because bending force disappears in addition, i.e. springback capacity, adds the result of plasticity mud simulated test according to practical experience in the past, and we show that the optimum value recovering angle is 1 ° 30 '.Should slowly depress during forging hammer operation, hammer force changes from small to big, and the time of last hammering on forging should reach 5 ~ 10 minutes, is beneficial to consolidation and the maintenance of profile.
Claims (6)
1. the forging method of a suspension ring forging, comprise the bending and final shaping unit bending operation of blanking, pulling, preformed, it is characterized in that: described prebuckling operation is first curved through just, middle transition circular arc is formed with punch and die forging and stamping between the upper and lower flat anvil being placed on forging hammer by forging stock, carry out 90 degree with pressure pad side and compacted under tire to forging stock again to bend: at final shaping unit bending operation, with pressure pad front and compacted under tire to forging stock forging molding.
2. the forging method of a kind of suspension ring forging according to claim 1, it is characterized in that having identical circular shape in the middle part of described punch and die, its radius is (1.5 ~ 2) r, wherein r-suspension ring forging knee inner radius, corresponding central angle is 30 ° ~ 45 °.
3. the forging method of a kind of suspension ring forging according to claim 1, it is characterized in that, described upper pressure pad is made up of bent plate, base plate and riser, and bent plate both sides are connected with base plate, riser is fixed between bent plate and base plate, and shape and the suspension ring forging curved shape of bent plate adapt.
4. the forging method of a kind of suspension ring forging according to claim 1, is characterized in that, described compacted under tire adds vertical fixed block by V-type anvil under hydraulic press and makes, and adopts arc transition between the medial surface of vertical fixed block and upper surface.
5. the forging method of a kind of suspension ring forging according to claim 1, is characterized in that, described forging stock through just forging, establishes ladder platform in flexural loading section before preformed is bending.
6. the forging method of a kind of suspension ring forging according to claim 1, is characterized in that, the final forging temperature of described final shaping unit bending operation is 800 ± 30 DEG C, the ascending applying of hammer force, and the hammering time is 5 ~ 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410739821.7A CN104624890B (en) | 2014-12-03 | 2014-12-03 | Forging method for lifting ring forged part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410739821.7A CN104624890B (en) | 2014-12-03 | 2014-12-03 | Forging method for lifting ring forged part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104624890A true CN104624890A (en) | 2015-05-20 |
| CN104624890B CN104624890B (en) | 2017-01-18 |
Family
ID=53204391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410739821.7A Active CN104624890B (en) | 2014-12-03 | 2014-12-03 | Forging method for lifting ring forged part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104624890B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907135A (en) * | 2015-06-05 | 2015-09-16 | 桂林天祥机械制造有限公司 | Raymond mill scraper knife seat and manufacture method thereof |
| CN105689621A (en) * | 2016-04-27 | 2016-06-22 | 贵州航天新力铸锻有限责任公司 | Die for formation of large-scale double-lug U-shaped forge piece |
| CN105728607A (en) * | 2016-04-19 | 2016-07-06 | 贵州航天新力铸锻有限责任公司 | Billet for forming large-sized double-lug U-shaped forged piece |
| CN105798215A (en) * | 2016-04-19 | 2016-07-27 | 贵州航天新力铸锻有限责任公司 | Manufacturing method of large double-lug U-shaped part for thermonuclear fusion reactor |
| CN106001343A (en) * | 2016-06-20 | 2016-10-12 | 安徽省瑞杰锻造有限责任公司 | Free forging process for large hoisting ring |
| CN106826125A (en) * | 2017-02-17 | 2017-06-13 | 哈尔滨汽轮机厂有限责任公司 | A kind of forging method of lifting suspension ring |
| CN106862446A (en) * | 2017-02-16 | 2017-06-20 | 哈尔滨汽轮机厂有限责任公司 | The free forging method of super-big and overweight forging is realized using 3 tons of flat-die hammers |
| CN108971400A (en) * | 2018-10-12 | 2018-12-11 | 湖南金天钛业科技有限公司 | A method of alloy special-shaped titanium forging is produced using open die forging equipment |
| CN111054867A (en) * | 2020-01-06 | 2020-04-24 | 西安三角防务股份有限公司 | Forging method of oversized U-shaped titanium alloy integral forging |
| CN112122522A (en) * | 2020-09-19 | 2020-12-25 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Forming process and bending forming device for hinge part |
| CN112676504A (en) * | 2020-12-09 | 2021-04-20 | 山东南山铝业股份有限公司 | Free forging processing method of aviation aluminum alloy arc forging plate |
| WO2024130784A1 (en) * | 2022-12-22 | 2024-06-27 | 无锡透平叶片有限公司 | Blade bending forming apparatus and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02133132A (en) * | 1988-11-11 | 1990-05-22 | Kobe Steel Ltd | Hot precision forging method |
| CA2336235A1 (en) * | 2001-02-21 | 2002-08-21 | Vlado Percinlic | Tools and technology for production of open die forging single arm hooks |
| CN202239434U (en) * | 2011-09-03 | 2012-05-30 | 宝鼎重工股份有限公司 | Hammer forging die for on-hammer die forging of combining left support and right support of train |
| CN102500740A (en) * | 2011-09-29 | 2012-06-20 | 芜湖禾田汽车工业有限公司 | Manufacturing process for lambdoidal control arm |
| CN102764849A (en) * | 2012-07-18 | 2012-11-07 | 广东省韶铸集团有限公司 | Process method for forging lifting hook |
| CN203281789U (en) * | 2013-04-28 | 2013-11-13 | 河南中轴福漫锻造有限公司 | Die for forging front shell of differential mechanism |
-
2014
- 2014-12-03 CN CN201410739821.7A patent/CN104624890B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02133132A (en) * | 1988-11-11 | 1990-05-22 | Kobe Steel Ltd | Hot precision forging method |
| CA2336235A1 (en) * | 2001-02-21 | 2002-08-21 | Vlado Percinlic | Tools and technology for production of open die forging single arm hooks |
| CN202239434U (en) * | 2011-09-03 | 2012-05-30 | 宝鼎重工股份有限公司 | Hammer forging die for on-hammer die forging of combining left support and right support of train |
| CN102500740A (en) * | 2011-09-29 | 2012-06-20 | 芜湖禾田汽车工业有限公司 | Manufacturing process for lambdoidal control arm |
| CN102764849A (en) * | 2012-07-18 | 2012-11-07 | 广东省韶铸集团有限公司 | Process method for forging lifting hook |
| CN203281789U (en) * | 2013-04-28 | 2013-11-13 | 河南中轴福漫锻造有限公司 | Die for forging front shell of differential mechanism |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907135A (en) * | 2015-06-05 | 2015-09-16 | 桂林天祥机械制造有限公司 | Raymond mill scraper knife seat and manufacture method thereof |
| CN104907135B (en) * | 2015-06-05 | 2018-01-30 | 桂林天祥机械制造有限公司 | Raymond mill shovel seat and preparation method thereof |
| CN105728607A (en) * | 2016-04-19 | 2016-07-06 | 贵州航天新力铸锻有限责任公司 | Billet for forming large-sized double-lug U-shaped forged piece |
| CN105798215A (en) * | 2016-04-19 | 2016-07-27 | 贵州航天新力铸锻有限责任公司 | Manufacturing method of large double-lug U-shaped part for thermonuclear fusion reactor |
| CN105689621A (en) * | 2016-04-27 | 2016-06-22 | 贵州航天新力铸锻有限责任公司 | Die for formation of large-scale double-lug U-shaped forge piece |
| CN106001343A (en) * | 2016-06-20 | 2016-10-12 | 安徽省瑞杰锻造有限责任公司 | Free forging process for large hoisting ring |
| CN106862446A (en) * | 2017-02-16 | 2017-06-20 | 哈尔滨汽轮机厂有限责任公司 | The free forging method of super-big and overweight forging is realized using 3 tons of flat-die hammers |
| CN106826125A (en) * | 2017-02-17 | 2017-06-13 | 哈尔滨汽轮机厂有限责任公司 | A kind of forging method of lifting suspension ring |
| CN108971400A (en) * | 2018-10-12 | 2018-12-11 | 湖南金天钛业科技有限公司 | A method of alloy special-shaped titanium forging is produced using open die forging equipment |
| CN111054867A (en) * | 2020-01-06 | 2020-04-24 | 西安三角防务股份有限公司 | Forging method of oversized U-shaped titanium alloy integral forging |
| CN111054867B (en) * | 2020-01-06 | 2023-05-05 | 西安三角防务股份有限公司 | Forging method of ultra-large U-shaped titanium alloy integral forging |
| CN112122522A (en) * | 2020-09-19 | 2020-12-25 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Forming process and bending forming device for hinge part |
| CN112676504A (en) * | 2020-12-09 | 2021-04-20 | 山东南山铝业股份有限公司 | Free forging processing method of aviation aluminum alloy arc forging plate |
| CN112676504B (en) * | 2020-12-09 | 2022-07-15 | 山东南山铝业股份有限公司 | Free forging processing method of aviation aluminum alloy arc forging plate |
| WO2024130784A1 (en) * | 2022-12-22 | 2024-06-27 | 无锡透平叶片有限公司 | Blade bending forming apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104624890B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104624890B (en) | Forging method for lifting ring forged part | |
| CN103084460B (en) | Monolithic molding method of light duty truck weldless axle case | |
| CN102513444B (en) | Composite flanging mechanism of stamping die | |
| CN107812871B (en) | A kind of high flange becomes the thick wall head solid forging method of wall thickness | |
| CN108213295B (en) | Ozzle forging method and nuclear power main pump pump case profiling forging technology | |
| KR101867744B1 (en) | Press forming method and method for manufacturing pressed product as well as press forming apparatus | |
| CN104525741A (en) | Continuous production die for rear portion blanking plate parts of automobile carling | |
| CN104438997A (en) | Free forging process for large cross forged pieces | |
| CN105562574A (en) | Hub axle tube forging and pressing forming process | |
| CN204711073U (en) | A kind of Preform Die of spindle | |
| CN205147093U (en) | Curved seat pad board stamping die in a bull -dozer left side | |
| CN102601195B (en) | Pier thickness stamping process of separated pull ring and pier thickness stamping die | |
| CN104014995A (en) | Method for forging bow shackle | |
| CN207013669U (en) | Forge fitting device in inclined-plane | |
| CN107116171B (en) | A kind of thin plate class complexity forging part base loose tool and manufacturing process | |
| CN103909206A (en) | Cold heading device for sleeve and cold heading process thereof | |
| CN103691819A (en) | Forming mold for open V-shaped supports of jacks of driving axles of automobiles | |
| CN102266892A (en) | Turning point improving method for reshaping vehicle longitudinal beam type stamping part and device special for method | |
| CN102172767B (en) | Large roller or gear forge piece forming device and using method | |
| CN207188710U (en) | A kind of positive and negative forging apparatus of reversible | |
| CN206912159U (en) | A kind of Mine Link Ring fetal membrane forging mould for not cutting off forging flow lines | |
| CN103586332A (en) | Process for stamping and forming sedan car rear auxiliary frame body | |
| CN214392164U (en) | Arc forging piece system of processing | |
| CN205200433U (en) | Modulus is not less than 6 straight -teeth gear finish forge hot extrusion formation mould | |
| CN204584024U (en) | The continuous seepage mould of a kind of automobile longitudinal girder rear portion shrouding part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |