CN102172757A - Hole-reaming forming technology for internal and external specially-shaped surfaces - Google Patents
Hole-reaming forming technology for internal and external specially-shaped surfaces Download PDFInfo
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- CN102172757A CN102172757A CN 201010608252 CN201010608252A CN102172757A CN 102172757 A CN102172757 A CN 102172757A CN 201010608252 CN201010608252 CN 201010608252 CN 201010608252 A CN201010608252 A CN 201010608252A CN 102172757 A CN102172757 A CN 102172757A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000005242 forging Methods 0.000 claims abstract description 104
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000004080 punching Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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Abstract
The invention discloses a hole-reaming forming technology for internal and external specially-shaped surfaces, which belongs to the field of large-forging forging and forming technology. In the forming process disclosed by the invention, the shape of a symmetrical forging is designed as required, and special tooling equipment such as a swage block and a core saddle is designed according to the shape of the forging; and the forming process comprises the following steps: (I) forging design: designing the shape of a symmetrical forging; (II) tooling equipment design: designing a corresponding hole-reaming swage block according to the shape of the external shape surface of the forging, and designing a corresponding core saddle according to the shape of the internal shape surface of the forging; and (III) forging manufacturing: (1) blanking: blanking according to the weight requirement of the forging; (2) punching and reaming, and then forging by using a flat anvil and a mandril: according to the process design, forging blank material before hold-shrinking; and according to the characteristic of hole-shrinking deformation, before reaming, designing the forging into a structure the external shape surface of the forging has high end parts and a concave middle part; (3) hole-shrinking forging: forging a forged blank by using a normal mandril and a wide anvil, and then designing a hole-shinking forging process step; and (4) carrying out hole-reaming forming by using the swage block and the core saddle.
Description
Technical field
The invention belongs to large forgings forging and molding technical field, relate to the Forging Technology of ring parts.
Background technology
Inside and outside shaped face ring forgings, as shown in Figure 1, the maximum characteristics outer surface of this forging, inner surface are the geometry of variation, and wall thickness value is not necessarily identical everywhere.The domestic and international at present production technology about this forging has: (1) rolles over the loop forming method, and this implementation of processes needs special-purpose Ring Rolling Machine tool, suitable middle-size and small-size forging; (2) flow forming, this implementation of processes needs special-purpose spinning machinery, is fit to small-sized forging; (3) cast form method, this technology is fit to big, in, the production of small-sized this type of part, but the mechanical performance of the part of Foundry Production is limited; (4) open die forging forming process, this implementation of processes need large free forging liquid making press, are fit to produce large and medium-sized forging, and the comprehensive mechanical property that this explained hereafter goes out this type of part is better than the part that casting forming process is produced.
For the production of large-scale this type of part, mostly adopt the flat-die forging method to produce both at home and abroad, existing free forging process all is reduced to it straight wall, and perhaps taper surface carries out reaming production.These two kinds of methods production forging shapes are comparatively simple, and forging wall thickness everywhere is identical.The shortcoming of these two kinds of Forging Technologies is as follows:
(1) forging has carried out great simplification, and consumable material is more;
(2) interior external surface needs machined to form, and increase machining time, and production efficiency is lower;
(3) the forging fibr tissue is cut off after the machined, is unfavorable for the combination property of forging.
Summary of the invention
The purpose of this invention is to provide a kind of inside and outside shaped face ream forming technology, many to solve the prior art consumable material; Interior external surface needs machined to form; Increase machining time, and production efficiency is low; The forging fibr tissue is cut off after the machined, influences the problems such as combination property of forging.
The technical solution adopted for the present invention to solve the technical problems is to design the forging shape of symmetry as required, processes special tooling equipment according to the forging shaped design: swage block, core saddle.Then forge required inside and outside shaped face forging, its processing step is as follows:
(1) forging design: the forging shape (as accompanying drawing 1) of design symmetry.
Be out of shape asymmetric characteristics according to single forging, we have designed symmetrical forging structure, and promptly two companies forge, and have considered the influences in the violent zone of distortion, and it is designed two junctions.
(2) tooling device design and making:
Swage block manufactures and designs: according to the corresponding reaming swage block of the external surface shaped design of forging, swage block shape face is identical with the outer surface of forging, and makes.
The core saddle manufactures and designs: according to the corresponding core saddle of shape face shaped design in the forging, the shape face of core saddle is identical with the inner surface configuration of forging, and makes.
(3) manufacturing of forging:
(1) blanking: carry out blanking according to the forge weight needs.
(2) punching, flat anvil is used in reaming, plug forges: according to technological design, carry out blank forging before the batter, and according to the characteristics of batter distortion, before the batter forging shaped design forging external surface end height, the recessed structure in middle part.
(3) batter forges: after using common plug and wide anvil that forging stock is forged, can be inserted in the core saddle in order to guarantee forging, the internal diameter at forging middle part is greater than core saddle diameter herein, and therefore, follow-up forging has designed batter Forging Technology step.
(4) use swage block, the core saddle carries out ream forming.
Good effect of the present invention is the symmetry that has formed the forging distortion, has avoided in the reaming process owing to forging is out of shape the inhomogeneous bending that causes forging everywhere; Guarantee in the process of reaming, to guarantee the shaping of forging inner surface.Satisfy the requirement of the different local different inner diameters of forging inner surface.
Description of drawings
The present invention is further described below in conjunction with drawings and embodiments:
Accompanying drawing 1 is the inside and outside shaped face forging shape and structure schematic diagram of the present invention;
1 is that forging external surface, 2 is shape face in the forging among the figure.
The specific embodiment
With the inside and outside as shown in Figure 1 shaped face forging of processing is example, and it is as follows to implement processing step of the present invention:
(1) forging design: the forging shape (as accompanying drawing 1) of design symmetry.
Be out of shape asymmetric characteristics according to single forging, we have designed symmetrical forging structure, and promptly two companies forge, and have considered the influences in the violent zone of distortion, and it is designed two junctions.
(2) tooling device design and making:
Swage block manufactures and designs: according to the corresponding reaming swage block of the external surface shaped design of forging, swage block shape face is identical with the outer surface of forging, and makes.
The core saddle manufactures and designs: according to the corresponding core saddle of shape face shaped design in the forging, the shape face of core saddle is identical with the inner surface configuration of forging, and makes.
(3) manufacturing of forging:
(1) blanking: carry out blanking according to the forge weight needs.
(2) punching, flat anvil is used in reaming, plug forges: according to technological design, carry out blank forging before the batter, and according to the characteristics of batter distortion, before the batter forging shaped design forging external surface end height, the recessed structure in middle part.
(3) batter forges: after using common plug and wide anvil that forging stock is forged, can be inserted in the core saddle in order to guarantee forging, the internal diameter at forging middle part is greater than core saddle diameter herein, and therefore, follow-up forging has designed batter Forging Technology step.
(4) use swage block, the core saddle carries out ream forming.
Claims (1)
1. shaped face ream forming technology inside and outside a kind is characterized in that designing as required the forging shape of symmetry, makes special tooling equipment swage block, core saddle according to the forging shaped design, forges required inside and outside shaped face forging then, and its processing step is as follows:
(1) forging design: the forging shape (as accompanying drawing 1) of design symmetry;
Be out of shape asymmetric characteristics according to single forging, we have designed symmetrical forging structure, and promptly two companies forge, and have considered the influences in the violent zone of distortion, and it is designed two junctions;
(2) tooling device design and making:
Swage block manufactures and designs: according to the corresponding reaming swage block of the external surface shaped design of forging, swage block shape face is identical with the outer surface of forging, and makes;
The core saddle manufactures and designs: according to the corresponding core saddle of shape face shaped design in the forging, the shape face of core saddle is identical with the inner surface configuration of forging, and makes;
(3) manufacturing of forging:
(1) blanking: carry out blanking according to the forge weight needs;
(2) punching, flat anvil is used in reaming, plug forges: according to technological design, carry out blank forging before the batter, and according to the characteristics of batter distortion, before the batter forging shaped design forging external surface end height, the recessed structure in middle part;
(3) batter forges: after using common plug and wide anvil that forging stock is forged, can be inserted in the core saddle in order to guarantee forging, the internal diameter at forging middle part is greater than core saddle diameter herein, and therefore, follow-up forging has designed batter Forging Technology step;
(4) use swage block, the core saddle carries out ream forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106082524A CN102172757B (en) | 2010-12-28 | 2010-12-28 | Hole-reaming forming technology for internal and external specially-shaped surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106082524A CN102172757B (en) | 2010-12-28 | 2010-12-28 | Hole-reaming forming technology for internal and external specially-shaped surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172757A true CN102172757A (en) | 2011-09-07 |
| CN102172757B CN102172757B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106082524A Active CN102172757B (en) | 2010-12-28 | 2010-12-28 | Hole-reaming forming technology for internal and external specially-shaped surfaces |
Country Status (1)
| Country | Link |
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| CN (1) | CN102172757B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489645A (en) * | 2011-12-22 | 2012-06-13 | 西南铝业（集团）有限责任公司 | Process for forging regular polygonal forged ring |
| CN103480784A (en) * | 2013-09-26 | 2014-01-01 | 贵州航宇科技发展股份有限公司 | Method for manufacturing drum forging for centrifugal machine |
| CN103831585A (en) * | 2013-09-16 | 2014-06-04 | 贵州航天新力铸锻有限责任公司 | Method for manufacturing flow guiding encirclement plate for nuclear power reactor internals |
| CN104399855A (en) * | 2014-11-06 | 2015-03-11 | 通裕重工股份有限公司 | Forging process for inner stepped hole type large forging |
| CN104874977A (en) * | 2014-10-31 | 2015-09-02 | 中北大学 | Profiled ring piece forming method |
| CN108213294A (en) * | 2017-12-20 | 2018-06-29 | 中原特钢股份有限公司 | A kind of half-blind hole forging batter forging method |
| CN110479947A (en) * | 2019-09-30 | 2019-11-22 | 中国第一重型机械股份公司 | Hydrogenator changeover portion profiling forging method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4054153B2 (en) * | 1999-12-27 | 2008-02-27 | 株式会社日進製作所 | Method and apparatus for manufacturing forged parts having holes |
| CN101537468A (en) * | 2009-04-17 | 2009-09-23 | 中国科学院金属研究所 | Design method of middle blank and prefabricating blank during conical shell forgeable piece forming process |
| CN101695737A (en) * | 2009-10-21 | 2010-04-21 | 清华大学 | Angle swage block and forging technology using same |
| JP2010234414A (en) * | 2009-03-31 | 2010-10-21 | Tekku Seimitsu Kk | Manufacturing method of annular expanding structure and heat radiating body of led electric bulb |
-
2010
- 2010-12-28 CN CN2010106082524A patent/CN102172757B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4054153B2 (en) * | 1999-12-27 | 2008-02-27 | 株式会社日進製作所 | Method and apparatus for manufacturing forged parts having holes |
| JP2010234414A (en) * | 2009-03-31 | 2010-10-21 | Tekku Seimitsu Kk | Manufacturing method of annular expanding structure and heat radiating body of led electric bulb |
| CN101537468A (en) * | 2009-04-17 | 2009-09-23 | 中国科学院金属研究所 | Design method of middle blank and prefabricating blank during conical shell forgeable piece forming process |
| CN101695737A (en) * | 2009-10-21 | 2010-04-21 | 清华大学 | Angle swage block and forging technology using same |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489645A (en) * | 2011-12-22 | 2012-06-13 | 西南铝业（集团）有限责任公司 | Process for forging regular polygonal forged ring |
| CN103831585A (en) * | 2013-09-16 | 2014-06-04 | 贵州航天新力铸锻有限责任公司 | Method for manufacturing flow guiding encirclement plate for nuclear power reactor internals |
| CN103831585B (en) * | 2013-09-16 | 2016-05-04 | 贵州航天新力铸锻有限责任公司 | The manufacture method of flow skirt for nuclear in-pile component |
| CN103480784A (en) * | 2013-09-26 | 2014-01-01 | 贵州航宇科技发展股份有限公司 | Method for manufacturing drum forging for centrifugal machine |
| CN103480784B (en) * | 2013-09-26 | 2015-04-08 | 贵州航宇科技发展股份有限公司 | Method for manufacturing drum forging for centrifugal machine |
| CN104874977A (en) * | 2014-10-31 | 2015-09-02 | 中北大学 | Profiled ring piece forming method |
| CN104874977B (en) * | 2014-10-31 | 2017-12-26 | 中北大学 | A kind of manufacturing process of special-shaped ring |
| CN104399855A (en) * | 2014-11-06 | 2015-03-11 | 通裕重工股份有限公司 | Forging process for inner stepped hole type large forging |
| CN108213294A (en) * | 2017-12-20 | 2018-06-29 | 中原特钢股份有限公司 | A kind of half-blind hole forging batter forging method |
| CN110479947A (en) * | 2019-09-30 | 2019-11-22 | 中国第一重型机械股份公司 | Hydrogenator changeover portion profiling forging method |
| CN110479947B (en) * | 2019-09-30 | 2021-07-06 | 中国第一重型机械股份公司 | Copying forging method for transition section of hydrogenation reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102172757B (en) | 2012-11-07 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Hole-reaming forming technology for internal and external specially-shaped surfaces Effective date of registration: 20190227 Granted publication date: 20121107 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: 20121107 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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| PC01 | Cancellation 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: Hole expanding forming technology of inner and outer special shaped surface Effective date of registration: 20210304 Granted publication date: 20121107 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: 20121107 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 |
Denomination of invention: Expanding hole forming process for inner and outer irregular surfaces Effective date of registration: 20230323 Granted publication date: 20121107 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980035948 |
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