CN111055090A - Flange shaft precision forming process - Google Patents

Flange shaft precision forming process Download PDF

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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
forming
flange shaft
punching
shaft precision
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Withdrawn
Application number
CN201911247068.9A
Other languages
Chinese (zh)
Inventor
孔德秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongtai Runfeng Flange Manufacturing Co Ltd
Original Assignee
Dongtai Runfeng Flange Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongtai Runfeng Flange Manufacturing Co Ltd filed Critical Dongtai Runfeng Flange Manufacturing Co Ltd
Priority to CN201911247068.9A priority Critical patent/CN111055090A/en
Publication of CN111055090A publication Critical patent/CN111055090A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/14Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels

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

Flange shaft precision forming process
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.
CN201911247068.9A 2019-12-09 2019-12-09 Flange shaft precision forming process Withdrawn CN111055090A (en)

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)

* Cited by examiner, † Cited by third party
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 Integrated forging method of flange type step thin wall long sheath forging
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
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 Integrated forging method of flange type step thin wall long sheath forging
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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Application publication date: 20200424

WW01 Invention patent application withdrawn after publication