CN104438997B - Free forging process for large cross forged pieces - Google Patents
Free forging process for large cross forged pieces Download PDFInfo
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- CN104438997B CN104438997B CN201410617292.3A CN201410617292A CN104438997B CN 104438997 B CN104438997 B CN 104438997B CN 201410617292 A CN201410617292 A CN 201410617292A CN 104438997 B CN104438997 B CN 104438997B
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- 238000005242 forging Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010046798 Uterine leiomyoma Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 201000010260 leiomyoma Diseases 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention provides a free forging process for large cross forged pieces. The process includes the specific steps that first, steel ingots are forced into eight-square-face forged blanks, and the eight side faces of each eight-square-face forged blank are the first side face, the second side face, the third side face, the fourth side face, the fifth side face, the sixth side face, the seventh side face and the eighth side face in sequence; second, two anvil blocks are used for forging and pressing the eight-square-face forged blanks, each anvil block comprises three working faces which are connected in sequence to be arranged in the shape of ')' as a whole, every two working faces located on the two sides are perpendicular to each other, the two anvil blocks are used for forging and pressing the first side faces and the fifth side faces of the eight-square-face forged blanks respectively so that the first side faces and the fifth side faces can be concave downwards to form notches shaped like ')', the forged pieces penetrate through the notches shaped like ')' in the thickness direction, the two anvil blocks are used for forging and pressing the third side faces and the seventh side faces of the eight-square-face forged blanks respectively so that the third side faces and the seventh side faces can be concave downwards to form notches shaped like ')', and the forged pieces penetrate through the notches shaped like ')' in the thickness direction; third, the forged pieces are subjected to finishing so that forging can be completed.
Description
Technical field
The invention belongs to large forgings forging and molding technical field is and in particular to large-scale cross forging free forging process.
Background technology
Fig. 1 shows the structure chart of large-scale cross forging, and this forging maximum feature is forging is in integrally cross, four
There is same or like size extension in individual direction.Rule of thumb, generally adopt with regard to this forging free forging process both at home and abroad at present
Use overall pack, such forging is swaged into all directions forging stock（As Fig. 2）Or cubic forging stock（As Fig. 3）, finally added using machinery
This forging process is become part shape by the method for work.
For the production of such part, the shortcoming of this forging technology is as follows：
（1）Waste a large amount of raw materials；
（2）Machining time increases, and production efficiency is relatively low；
（3）Cannot ensure that designing proposed forging should ensure the fibrous technical requirements of forging as far as possible, cut off forging
The tissue fibers of part, make the mechanical property of product substantially reduce, and affect service life.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of large-scale cross forging free forging process, improves the power of product
Learn performance, reduce machining amount.
In order to solve above-mentioned technical problem, the technical scheme is that：
A kind of large-scale cross forging free forging process, comprises the following steps that,
1）Steel ingot is swaged into all directions forging stock, forging stock eight sides in all directions are sequentially first side, second side, the 3rd side
Face, the 4th side, the 5th side, the 6th side, heptalateral face and the 8th side；
2）Using two anvil blocks, all directions forging stock is forged and pressed, each anvil block includes three work surfaces, three work surfaces are suitable
The secondary entirety that connects is in " " shape arrangement, and two work surfaces positioned at both sides are orthogonal,
First side to all directions forging stock and the 5th side carry out forging and stamping and make first side and the 5th two anvil blocks respectively
Side concave downward is respectively formed " " v notch v, and " " v notch v thickness direction runs through forging,
Two anvil blocks carry out forging and stamping and make the 3rd side and the 7th to the 3rd side and heptalateral face of all directions forging stock respectively
Side concave downward is respectively formed " " v notch v, and " " v notch v thickness direction runs through forging；
3）Finishing is carried out to forging, completes to forge.
Above-mentioned large-scale cross forging free forging process, the weight=large-scale cross forge weight+forging surplus of steel ingot.
Above-mentioned large-scale cross forging free forging process, anvil block is the cylinder of isosceles trapezoid for transverse section.
Using anvil block, all directions forging stock is forged and pressed, all directions forging stock forges and presses out and on four thickness directions, runs through forging
" " v notch v, two work surfaces due to being located at both sides on anvil block are orthogonal, therefore after above-mentioned forging and stamping, forging is in cross
Shape, then finishing, complete to forge.The present invention adopts the method for open die forging by the extension of large-scale cross forging four direction to the greatest extent
May forge to close to part shape size, to ensure forging fibroids technical requirements, improve the mechanical property of product, extend and use
In the life-span, reduce forge weight simultaneously, reduce machining time.
Brief description
The present invention is described in more detail below in conjunction with the accompanying drawings：
Fig. 1 is the structure chart of large-scale cross forging.
Fig. 2 is the structure chart of all directions forging stock.
Fig. 3 is the structure chart of cubic forging stock.
Fig. 4 is the schematic diagram of forging after consideration forging surplus.
Fig. 5 adopts the schematic diagram of all directions forging stock for the present invention.
Fig. 6 forges and presses the schematic diagram of process for the present invention.
Fig. 7 is the schematic diagram of two anvil blocks.
In figure：1 anvil block, 2 anvil blocks.
Specific embodiment
As shown in Fig. 1 and Fig. 4 to Fig. 7, a kind of large-scale cross forging free forging process, comprise the following steps that,
1）Steel ingot is swaged into all directions forging stock（As shown in Figure 5）, forging stock eight sides in all directions are sequentially first side, the second side
Face, the 3rd side, the 4th side, the 5th side, the 6th side, heptalateral face and the 8th side；
2）Using two anvil blocks（1 and 2）All directions forging stock is forged and pressed, as shown in fig. 7, each anvil block includes three work
Face, it is in " " shape arrangement that three work surfaces are sequentially connected with overall, and two work surfaces positioned at both sides are orthogonal, and three work surfaces exist
The size of anvil block thickness direction is all higher than all directions forging stock thickness,
As shown in fig. 6, two anvil blocks the first side to all directions forging stock and the 5th side carry out forging and stamping and make first respectively
Side and the 5th side concave downward are respectively formed " " v notch v, and " " v notch v thickness direction runs through forging,
Two anvil blocks carry out forging and stamping and make the 3rd side and the 7th to the 3rd side and heptalateral face of all directions forging stock respectively
Side concave downward is respectively formed " " v notch v, and " " v notch v thickness direction runs through forging；
3）Finishing is carried out to forging, completes to forge.
The weight of steel ingot=large-scale cross forge weight+forging surplus, as shown in Figure 4 it is considered to draw out after forging surplus
Forging shape.All directions forging stock is calculated according to the forging shape drawn out and weight, then steel ingot is determined according to all directions forging stock.
Specifically, anvil block is the cylinder of isosceles trapezoid for transverse section.
Claims (3)
1. a kind of large-scale cross forging free forging process it is characterised in that：Comprise the following steps that,
1）Steel ingot is swaged into all directions forging stock, eight sides of all directions forging stock be sequentially first side, second side, the 3rd side, the
Four sides, the 5th side, the 6th side, heptalateral face and the 8th side；
2）Using two anvil blocks, all directions forging stock is forged and pressed, each anvil block includes three work surfaces, three work surfaces sequentially connect
Connecing overall is in " " shape arrangement, and two work surfaces positioned at both sides are orthogonal, and three work surfaces are in the size of anvil block thickness direction
It is all higher than all directions forging stock thickness,
First side to all directions forging stock and the 5th side carry out forging and stamping and make first side and the 5th side two anvil blocks respectively
Concave downward is respectively formed " " v notch v, and " " v notch v thickness direction runs through forging,
Two anvil blocks carry out forging and stamping and make the 3rd side and heptalateral face to the 3rd side and heptalateral face of all directions forging stock respectively
Concave downward is respectively formed " " v notch v, and " " v notch v thickness direction runs through forging；
3）Finishing is carried out to forging, completes to forge.
2. large-scale cross forging free forging process according to claim 1 it is characterised in that：The weight of steel ingot=large-scale
Cross forge weight+forging surplus.
3. large-scale cross forging free forging process according to claim 1 it is characterised in that：Anvil block for transverse section be etc.
The trapezoidal cylinder of waist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617292.3A CN104438997B (en) | 2014-11-06 | 2014-11-06 | Free forging process for large cross forged pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617292.3A CN104438997B (en) | 2014-11-06 | 2014-11-06 | Free forging process for large cross forged pieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438997A CN104438997A (en) | 2015-03-25 |
| CN104438997B true CN104438997B (en) | 2017-02-15 |
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| CN201410617292.3A Active CN104438997B (en) | 2014-11-06 | 2014-11-06 | Free forging process for large cross forged pieces |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374404A (en) * | 2015-11-30 | 2016-03-02 | 贵州航天新力铸锻有限责任公司 | Cross forging |
| CN105945202A (en) * | 2016-06-20 | 2016-09-21 | 安徽省瑞杰锻造有限责任公司 | All fiber forging technology of cross shaft forging piece |
| CN106541070A (en) * | 2016-10-09 | 2017-03-29 | 中冶陕压重工设备有限公司 | A kind of forging method of machine shaft |
| CN107282853B (en) * | 2017-06-30 | 2019-05-21 | 陕西宏远航空锻造有限责任公司 | A kind of forging part improvement molding forging method of blank |
| CN111167985B (en) * | 2020-01-16 | 2021-02-09 | 二重（德阳）重型装备有限公司 | Forming method and device for large-scale long-axis cross-shaped forge piece |
| CN112846059A (en) * | 2020-12-30 | 2021-05-28 | 安徽省瑞杰锻造有限责任公司 | Free forging process of bearing seat |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH445269A (en) * | 1964-02-03 | 1967-10-15 | Gen Electric | Method for deforming a workpiece with a cavity under pressure |
| US5119663A (en) * | 1991-01-11 | 1992-06-09 | Masco Industries, Inc. | Method and apparatus for cold extruding universal seal crosspieces |
| JP2007139476A (en) * | 2005-11-16 | 2007-06-07 | National Institute Of Advanced Industrial & Technology | Forgeability test method and test device |
| CN102284673A (en) * | 2011-05-15 | 2011-12-21 | 张家港海锅重型锻件有限公司 | Manufacturing method of cross-shaped forging piece |
| CN103878279A (en) * | 2012-12-21 | 2014-06-25 | 陕西宏远航空锻造有限责任公司 | Method for forging crossed die forgings |
-
2014
- 2014-11-06 CN CN201410617292.3A patent/CN104438997B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH445269A (en) * | 1964-02-03 | 1967-10-15 | Gen Electric | Method for deforming a workpiece with a cavity under pressure |
| US5119663A (en) * | 1991-01-11 | 1992-06-09 | Masco Industries, Inc. | Method and apparatus for cold extruding universal seal crosspieces |
| JP2007139476A (en) * | 2005-11-16 | 2007-06-07 | National Institute Of Advanced Industrial & Technology | Forgeability test method and test device |
| CN102284673A (en) * | 2011-05-15 | 2011-12-21 | 张家港海锅重型锻件有限公司 | Manufacturing method of cross-shaped forging piece |
| CN103878279A (en) * | 2012-12-21 | 2014-06-25 | 陕西宏远航空锻造有限责任公司 | Method for forging crossed die forgings |
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| CN104438997A (en) | 2015-03-25 |
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Denomination of invention: Free forging process for large cross forged pieces Effective date of registration: 20190227 Granted publication date: 20170215 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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Date of cancellation: 20210304 Granted publication date: 20170215 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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Denomination of invention: Free forging process of large cross forgings Effective date of registration: 20210304 Granted publication date: 20170215 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
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Date of cancellation: 20230320 Granted publication date: 20170215 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
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Denomination of invention: Free forging process for large cross shaped forgings Effective date of registration: 20230323 Granted publication date: 20170215 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980035948 |