CN104438997A - Free forging process for large cross forged pieces - Google Patents
Free forging process for large cross forged pieces Download PDFInfo
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- CN104438997A CN104438997A CN201410617292.3A CN201410617292A CN104438997A CN 104438997 A CN104438997 A CN 104438997A CN 201410617292 A CN201410617292 A CN 201410617292A CN 104438997 A CN104438997 A CN 104438997A
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- 238000005242 forging Methods 0.000 title claims abstract description 99
- 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 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 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
- 238000005303 weighing Methods 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, be specifically related to large-scale cross forging free forging process.
Background technology
Fig. 1 shows the structure chart of large-scale cross forging, and the maximum feature of this forging is forging entirety is cross, and four direction has identical or similar sizes extension.Rule of thumb, usually adopt overall pack about this forging free forging process both at home and abroad at present, this type of forging is swaged into forging stock (as Fig. 2) or cubic forging stock (as Fig. 3) from all directions, this forging process is become part shape by the final method of machining that adopts.
For the production of this type of part, the shortcoming of this Forging Technology is as follows:
(1) a large amount of raw material are wasted;
(2) machining time increases, and production efficiency is lower;
(3) cannot ensure that designing the forging proposed should ensure the fibrous technical requirement of forging as far as possible, has cut off the tissue fibers of forging, the mechanical property of product has been reduced greatly, affects service life.
Summary 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 mechanical property of product, reduces machining amount.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of large-scale cross forging free forging process, concrete steps are as follows,
1) steel ingot is swaged into forging stock from all directions, forging stock eight sides are the first side, the second side, the 3rd side, the 4th side, the 5th side, the 6th side, heptalateral face and the 8th side in turn from all directions;
2) adopt two anvil blocks to forge and press all directions forging stock, each anvil block comprises three working faces, and three working faces in turn connecting overall are arranged in " ︺ " shape, and two working faces being positioned at both sides are orthogonal,
Two anvil blocks carry out forging and stamping to the first side of all directions forging stock and the 5th side respectively and make the first side and the 5th side all form " ︺ " v notch v to lower recess, and " ︺ " v notch v thickness direction runs through forging,
Two anvil blocks carry out forging and stamping to the 3rd side of all directions forging stock and heptalateral face respectively and make the 3rd side and the heptalateral depression that faces down all form " ︺ " v notch v, and " ︺ " v notch v thickness direction runs through forging;
3) finishing is carried out to forging, complete forging.
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, the cylinder of anvil block to be cross section be isosceles trapezoid.
Adopt anvil block to forge and press all directions forging stock, all directions forging stock forges and presses out " ︺ " v notch v four thickness directions running through forging, because two working faces being positioned at both sides on anvil block are orthogonal, therefore after above-mentioned forging and stamping, forging is cross, then finishing, completes forging.The present invention adopts the method for open die forging to be forged the extension of large-scale cross forging four direction to close to part shape size as far as possible, to ensure forging fibroid technical requirement, improve the mechanical property of product, increase the service life, reduce forge weight simultaneously, reduce machining time.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in more detail:
Fig. 1 is the structure chart of large-scale cross forging.
Fig. 2 is the structure chart of forging stock from all directions.
Fig. 3 is the structure chart of cubic forging stock.
Fig. 4 is the schematic diagram of forging after consideration forging surplus.
Fig. 5 is the schematic diagram that the present invention adopts forging stock from all directions.
Fig. 6 is the schematic diagram that the present invention forges and presses process.
Fig. 7 is the schematic diagram of two anvil blocks.
In figure: 1 anvil block, 2 anvil blocks.
Detailed description of the invention
As shown in Fig. 1 and Fig. 4 to Fig. 7, a kind of large-scale cross forging free forging process, concrete steps are as follows,
1) steel ingot is swaged into forging stock (as shown in Figure 5) from all directions, forging stock eight sides are the first side, the second side, the 3rd side, the 4th side, the 5th side, the 6th side, heptalateral face and the 8th side in turn from all directions;
2) two anvil blocks (1 and 2) are adopted to forge and press all directions forging stock, as shown in Figure 7, each anvil block comprises three working faces, three working faces in turn connecting overall are arranged in " ︺ " shape, two working faces being positioned at both sides are orthogonal, three working faces are all greater than forging stock thickness from all directions in the size of anvil block thickness direction
As shown in Figure 6, two anvil blocks carry out forging and stamping to the first side of all directions forging stock and the 5th side respectively and make the first side and the 5th side all form " ︺ " v notch v to lower recess, and " ︺ " v notch v thickness direction runs through forging,
Two anvil blocks carry out forging and stamping to the 3rd side of all directions forging stock and heptalateral face respectively and make the 3rd side and the heptalateral depression that faces down all form " ︺ " v notch v, and " ︺ " v notch v thickness direction runs through forging;
3) finishing is carried out to forging, complete forging.
Weight=large-scale cross forge weight+forging the surplus of steel ingot, as shown in Figure 4, the forging shape drawn out after considering forging surplus.Forging stock is from all directions calculated, then according to all directions forging stock determination steel ingot according to the forging shape drawn out and weighing scale.
Particularly, the cylinder of anvil block to be cross section be isosceles trapezoid.
Claims (3)
1. a large-scale cross forging free forging process, is characterized in that: concrete steps are as follows,
1) steel ingot is swaged into forging stock from all directions, forging stock eight sides are the first side, the second side, the 3rd side, the 4th side, the 5th side, the 6th side, heptalateral face and the 8th side in turn from all directions;
2) two anvil blocks are adopted to forge and press all directions forging stock, each anvil block comprises three working faces, and three working faces in turn connecting overall are arranged in " ︺ " shape, and two working faces being positioned at both sides are orthogonal, three working faces are all greater than forging stock thickness from all directions in the size of anvil block thickness direction
Two anvil blocks carry out forging and stamping to the first side of all directions forging stock and the 5th side respectively and make the first side and the 5th side all form " ︺ " v notch v to lower recess, and " ︺ " v notch v thickness direction runs through forging,
Two anvil blocks carry out forging and stamping to the 3rd side of all directions forging stock and heptalateral face respectively and make the 3rd side and the heptalateral depression that faces down all form " ︺ " v notch v, and " ︺ " v notch v thickness direction runs through forging;
3) finishing is carried out to forging, complete forging.
2. large-scale cross forging free forging process according to claim 1, is characterized in that: the weight=large-scale cross forge weight+forging surplus of steel ingot.
3. large-scale cross forging free forging process according to claim 1, is characterized in that: the cylinder of anvil block to be cross section be isosceles trapezoid.
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 |
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| 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 |
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| CN104438997A true CN104438997A (en) | 2015-03-25 |
| CN104438997B 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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Cited By (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 |
| CN107282853A (en) * | 2017-06-30 | 2017-10-24 | 陕西宏远航空锻造有限责任公司 | A kind of forging part improves the forging method of blank shaping |
| CN111167985A (en) * | 2020-01-16 | 2020-05-19 | 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 |
Cited By (7)
| 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 |
| CN107282853A (en) * | 2017-06-30 | 2017-10-24 | 陕西宏远航空锻造有限责任公司 | A kind of forging part improves the forging method of blank shaping |
| CN111167985A (en) * | 2020-01-16 | 2020-05-19 | 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104438997B (en) | 2017-02-15 |
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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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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
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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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
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 |