CN111055090A - Flange shaft precision forming process - Google Patents
Flange shaft precision forming process Download PDFInfo
- Publication number
- CN111055090A CN111055090A CN201911247068.9A CN201911247068A CN111055090A CN 111055090 A CN111055090 A CN 111055090A CN 201911247068 A CN201911247068 A CN 201911247068A CN 111055090 A CN111055090 A CN 111055090A
- Authority
- CN
- China
- Prior art keywords
- forging
- flange shaft
- punching
- forming
- forming process
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005242 forging Methods 0.000 claims abstract description 27
- 238000009740 moulding (composite fabrication) Methods 0.000 claims abstract description 22
- 238000004080 punching Methods 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 7
- 238000005422 blasting Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000005496 tempering Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a flange shaft precision forming process, which comprises the following steps: blanking, heating, pre-forging, finish forging, punching and connecting skin, trimming, tempering, shot blasting, upsetting, drawing out, bending, punching and forming. The pre-forging forming can effectively reduce metal backflow and prevent wrinkling, the forming quality of a forge piece is ensured, the once deformation degree can be reduced by increasing the pre-forging process, the forming load is favorably reduced, metal filling is full, the damage to die parts can be reduced, and the service life of the die is prolonged.
Description
Technical Field
The invention relates to the field of flange shaft forming, in particular to a flange shaft precision forming process.
Background
The flange shaft is a forged part used in a DSG dual-clutch transmission, the flange shaft has high precision requirement, the traditional processing is to perform die splitting at the large end of the flange head by hammer forging, the process is difficult to meet the requirement on the error modulus of an important index of a product, the precision is low, the production efficiency of the hammer forging is low, isothermal normalizing is required after forging to enable the hardness and the structure to meet the requirement, the production cost is high, and the mass production of large specifications is not facilitated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a flange shaft precision forming process which is low in production cost and high in production efficiency, overcomes the defects in the prior art, and meets the requirements of batch production.
In order to achieve the aim of the invention, the invention adopts the specific scheme that:
a flange shaft precision forming process comprises the following steps: blanking, heating, pre-forging, finish forging, punching and connecting skin, trimming, tempering, shot blasting, upsetting, drawing out, bending, punching and forming.
Further, upsetting is an operation process of forging the raw blank in the axial direction to reduce the height and increase the cross section.
Further, the drawing is a forging step of increasing the length of the billet and reducing the cross section.
Further, punching: and a forging step of punching a through hole or a blind hole in the blank by using a punch.
Further, a forging step of bending the blank to bend the blank into a predetermined angle or shape.
The invention has the beneficial effects that:
the production cost is low, the production efficiency is high, the defects of the prior art are overcome, and the requirement of batch production is met. The pre-forging forming can effectively reduce metal backflow and prevent wrinkling, the forming quality of a forge piece is ensured, the once deformation degree can be reduced by increasing the pre-forging process, the forming load is favorably reduced, metal filling is full, the damage to die parts can be reduced, and the service life of the die is prolonged.
Detailed Description
The present invention is further described below by way of specific examples, but the present invention is not limited to only the following examples. Variations, combinations, or substitutions of the invention, which are within the scope of the invention or the spirit, scope of the invention, will be apparent to those of skill in the art and are within the scope of the invention.
A flange shaft precision forming process comprises the following steps: blanking, heating, pre-forging, finish forging, punching and connecting skin, trimming, tempering, shot blasting, upsetting, drawing out, bending, punching and forming.
Upsetting is an operation process of forging a raw blank in an axial direction to reduce the height of the raw blank and increase the cross section of the raw blank.
Drawing is a forging process in which the length of the billet is increased and the cross section is reduced.
Punching: and a forging step of punching a through hole or a blind hole in the blank by using a punch.
And a forging step of bending the blank to a predetermined angle or shape.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A flange shaft precision forming process is characterized by comprising the following steps: blanking, heating, pre-forging, finish forging, punching and connecting skin, trimming, tempering, shot blasting, upsetting, drawing out, bending, punching and forming.
2. A flange shaft precision forming process according to claim 1, wherein the upsetting is an operation of forging the blank in the axial direction to reduce the height and increase the cross section.
3. A flange shaft precision forming process according to claim 1, wherein the drawing is a forging process in which the length of the blank is increased and the section is decreased.
4. A flange shaft precision forming process according to claim 1, characterized in that the punching: and a forging step of punching a through hole or a blind hole in the blank by using a punch.
5. A flange shaft precision forming process according to claim 1, characterized by a forging process of bending a blank to a certain angle or shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247068.9A CN111055090A (en) | 2019-12-09 | 2019-12-09 | Flange shaft precision forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247068.9A CN111055090A (en) | 2019-12-09 | 2019-12-09 | Flange shaft precision forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111055090A true CN111055090A (en) | 2020-04-24 |
Family
ID=70300117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911247068.9A Withdrawn CN111055090A (en) | 2019-12-09 | 2019-12-09 | Flange shaft precision forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111055090A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736654A (en) * | 2004-08-19 | 2006-02-22 | 中国北车集团大同电力机车有限责任公司 | Integral conformal forging method for flange-type stepped thin-walled long sleeve forgings |
| CN102029347A (en) * | 2010-12-29 | 2011-04-27 | 中原特钢股份有限公司 | Manufacturing method of gear shaft forge piece for offshore drilling platform |
| CN102527897A (en) * | 2011-12-30 | 2012-07-04 | 中信重工机械股份有限公司 | Forging method for thin-walled step short sleeve type main shaft flange of water turbine |
| CN102615478A (en) * | 2012-02-28 | 2012-08-01 | 杭州荣力铸锻有限公司 | Forging process of wind power main shaft |
| CN103894792A (en) * | 2014-02-26 | 2014-07-02 | 陕西华威锻压有限公司 | Method for machining forge piece of large-scale single-flange anti-explosion motor main shaft of all-fiber texture |
| CN106239069A (en) * | 2016-08-24 | 2016-12-21 | 江苏金源高端装备股份有限公司 | A kind of automobile middle shaft Forging Technology |
| CN109048241A (en) * | 2018-08-16 | 2018-12-21 | 南昌齿轮锻造厂 | A kind of method of automobile gearbox input shaft forging and its blank roughing forming |
-
2019
- 2019-12-09 CN CN201911247068.9A patent/CN111055090A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736654A (en) * | 2004-08-19 | 2006-02-22 | 中国北车集团大同电力机车有限责任公司 | Integral conformal forging method for flange-type stepped thin-walled long sleeve forgings |
| CN102029347A (en) * | 2010-12-29 | 2011-04-27 | 中原特钢股份有限公司 | Manufacturing method of gear shaft forge piece for offshore drilling platform |
| CN102527897A (en) * | 2011-12-30 | 2012-07-04 | 中信重工机械股份有限公司 | Forging method for thin-walled step short sleeve type main shaft flange of water turbine |
| CN102615478A (en) * | 2012-02-28 | 2012-08-01 | 杭州荣力铸锻有限公司 | Forging process of wind power main shaft |
| CN103894792A (en) * | 2014-02-26 | 2014-07-02 | 陕西华威锻压有限公司 | Method for machining forge piece of large-scale single-flange anti-explosion motor main shaft of all-fiber texture |
| CN106239069A (en) * | 2016-08-24 | 2016-12-21 | 江苏金源高端装备股份有限公司 | A kind of automobile middle shaft Forging Technology |
| CN109048241A (en) * | 2018-08-16 | 2018-12-21 | 南昌齿轮锻造厂 | A kind of method of automobile gearbox input shaft forging and its blank roughing forming |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200424 |