CN106077383B - A kind of mould forging technology of dumbbell class cheese forging - Google Patents
A kind of mould forging technology of dumbbell class cheese forging Download PDFInfo
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- CN106077383B CN106077383B CN201610454552.9A CN201610454552A CN106077383B CN 106077383 B CN106077383 B CN 106077383B CN 201610454552 A CN201610454552 A CN 201610454552A CN 106077383 B CN106077383 B CN 106077383B
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- forging
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The purpose of the present invention is a kind of mould forging technology of dumbbell class cheese forging, its forging technology process is：Step 1, forging heating process：Step 2, mould forging step：Mould is made of Preform Die and molding die, and carries out forging making in Preform Die and molding die respectively：(1) Preform Die forges；(2) molding die forges：Forging after the completion of one end is forged is put into forging other end great circle in molding die immediately, after remove outer die casing, separate core rod, forging is taken out, is forged by cheese model method, improves forging precision, produced fracture when reducing forging, make the smooth no hammering in forging surface, reduce raw-material weight, lower production cost.
Description
Technical field
The present invention relates to the field in terms of forging processing and auxiliary component, the particularly forging to dumbbell class cheese forging
Make the improvement in terms of processing method, more particularly to a kind of mould forging technology of dumbbell class cheese forging.
Background technology
With flourishing for forging industry and going from strength to strength for national economy, large-scale interior outer step cylindrical forged piece demand
Increasingly increase, with the development of science and technology industrial machine is obvious to the development trend of high-performance, high parameter, maximization, it is especially right
In the small cheese forging in the forging big centre in two, when forging the small class cheese forging in the big centre of two diameter in the prior art, one
As be swaged into cake, such forging process for fuel surplus is big, and waste of raw materials is serious, and machine man-hour length, material cost is more, labor
Power waste is big.
Therefore it provides a kind of mould forging technology of dumbbell class cheese forging, to can be by being carried out to processing technology
Improve, forged by cheese model method, improve forging precision, produced fracture when reducing forging, make the smooth nothing in forging surface
Hammering, reduces raw-material weight, the problem of lowering production cost, just become those skilled in the art's urgent need to resolve.
The content of the invention
The object of the present invention is to provide a kind of mould forging technology of dumbbell class cheese forging, to can be by processing
Technique is improved, and is forged by cheese model method, improves forging precision, is produced fracture when reducing forging, is made forging table
The smooth no hammering in face, reduces raw-material weight, lowers production cost.
To solve technical problem described in background technology, the present invention uses following technical scheme：
A kind of mould forging technology of dumbbell class cheese forging, its forging technology process are：
Step 1, forging heating process：Forging is heated by multisection type before being forged, 350 DEG C of constant temperature are kept
3-5h, can continue to heat after material temperature is uniform, and when 850 DEG C of medium temperature keeps the temperature 2-3h, after be heated to 1100-1180 DEG C as early as possible
Forging temperature, 5-6h of insulation come out of the stove forging.
Step 2, mould forging step：Mould is made of Preform Die and molding die, and respectively Preform Die and into
Forging making is carried out in pattern tool：
（1）Preform Die forges：Preform Die be one for the big platform that is relatively large in diameter, when forging in blocker jumping-up
Method forges a great circle, and by jumping-up forging method when jumping-up forges, when jumping-up is divided into 3-5 progress jumping-ups, and in jumping-up
The slow method of mono- upsettings one of Shi Caiyong carries out jumping-up, and a big toroidal of this forging is forged in Preform Die；
（2）Molding die forges：Molding die is made of core rod and outer die casing two parts：
Core rod is forging reverse shape, and when forging is cut core rod from middle longitudinal direction by electric saw, is equally divided into two portions
Point, and outer die casing is sleeved on outside core rod；
Forging after the completion of one end is forged is put into molding die forging other end great circle immediately, after remove outer die casing, point
Core is molded, takes out forging.
Preferably, promoted during jumping-up in the step 2 using multiple jumping-up, and push-in stroke is 50-70mm every time,
Forged by repeatedly a small amount of jumping-up propulsion mode, improve the precision of forging, avoid causing forging local since propulsion is excessive
Fracture.
Preferably, to be tried one's best when the Preform Die forging in the step 2 and molding die forge fast, keep forging
When forging temperature be higher than final forging temperature, and final forging temperature is set to 900-950 DEG C, forging temperature is higher than final forging temperature, Neng Goubao
Hold forging and be in optimal mecystasis, reduce forging difficulty.
The beneficial effects of the invention are as follows：
1）, by being improved to processing technology, forged by cheese model method, improve forging precision, reduce forging
Produced fracture when making, make the smooth no hammering in forging surface.
2）, reduce raw-material weight, lower production cost.
Embodiment
In order to make those skilled in the art more fully understand technical scheme, the present invention will be made into one below
Step is discussed in detail.
Embodiment 1：
A kind of mould forging technology of dumbbell class cheese forging, its forging technology process are：
Step 1, forging heating process：After carrying out being heated to 350 DEG C by multisection type by forging before being forged, constant temperature is protected
Hold 3h, can continue to heat after material temperature is uniform, when 850 DEG C of medium temperature, keeps the temperature 2h, after be heated to 1100 DEG C of forging temperature as quickly as possible,
Insulation 5h comes out of the stove forging.
Step 2, mould forging step：Mould is made of Preform Die and molding die, and respectively Preform Die and into
Forging making is carried out in pattern tool：
（1）Preform Die forges：Preform Die be one for the big platform that is relatively large in diameter, when forging in blocker jumping-up
Method forges a great circle, and by jumping-up forging method when jumping-up forges, when jumping-up is divided into 3 progress jumping-ups, and promotes every time
Measure as 70mm, and the method delayed in jumping-up using a upsetting one carries out jumping-up, one of this forging is forged in Preform Die
Big toroidal.
（2）Molding die forges：Molding die is made of core rod and outer die casing two parts：
Core rod is forging reverse shape, and when forging is cut core rod from middle longitudinal direction by electric saw, is equally divided into two portions
Point, and outer die casing is sleeved on outside core rod；
Forging after the completion of one end is forged is put into molding die forging other end great circle immediately, after remove outer die casing, point
Core is molded, takes out forging.
Preferably, to be tried one's best when the Preform Die forging in the step 2 and molding die forge fast, keep forging
When forging temperature be higher than final forging temperature, and final forging temperature is set to 900 DEG C.
Implement to prove, using this data, can largely reduce forging internal-external temperature difference during Forge Heating, reduce
Forging fracture rate, jumping-up propulsion is relatively small, reduces to a certain extent when forging promotes and produces fracture and distort, adds
The temperature range of forging, reduces heating times.
Embodiment 2：
A kind of mould forging technology of dumbbell class cheese forging, its forging technology process are：
Step 1, forging heating process：After carrying out being heated to 350 DEG C by multisection type by forging before being forged, constant temperature is protected
Hold 5h, can continue to heat after material temperature is uniform, when 850 DEG C of medium temperature, keeps the temperature 3h, after be heated to 1180 DEG C of forging temperature as quickly as possible,
Insulation 6h comes out of the stove forging.
Step 2, mould forging step：Mould is made of Preform Die and molding die, and respectively Preform Die and into
Forging making is carried out in pattern tool：
（1）Preform Die forges：Preform Die be one for the big platform that is relatively large in diameter, when forging in blocker jumping-up
Method forges a great circle, and by jumping-up forging method when jumping-up forges, when jumping-up is divided into 5 progress jumping-ups, and promotes every time
Measure as 50mm, and the method delayed in jumping-up using a upsetting one carries out jumping-up, one of this forging is forged in Preform Die
Big toroidal.
（2）Molding die forges：Molding die is made of core rod and outer die casing two parts：
Core rod is forging reverse shape, and when forging is cut core rod from middle longitudinal direction by electric saw, is equally divided into two portions
Point, and outer die casing is sleeved on outside core rod；
Forging after the completion of one end is forged is put into molding die forging other end great circle immediately, after remove outer die casing, point
Core is molded, takes out forging.
Preferably, to be tried one's best when the Preform Die forging in the step 2 and molding die forge fast, keep forging
When forging temperature be higher than final forging temperature, and final forging temperature is set to 950 DEG C.
Implement to prove, using this group of data, forging internal-external temperature difference during Forge Heating can be reduced to the full extent, avoided
Forging is produced fracture in forging, and jumping-up, which promotes, reaches minimum, reduce to the full extent produced fracture when forging promotes and
Distortion, the temperature range of stringent controlled forge process, can reduce the plasticity of heating times and forging in optimum state.
Therefore, the present embodiment is most preferred embodiment.
Embodiment 3：
A kind of mould forging technology of dumbbell class cheese forging, its forging technology process are：
Step 1, forging heating process：After carrying out being heated to 350 DEG C by multisection type by forging before being forged, constant temperature is protected
Hold 4h, can continue to heat after material temperature is uniform, when 850 DEG C of medium temperature, keeps the temperature 2.5h, after be heated to 1150 DEG C of forging temperature as quickly as possible
Degree, insulation 5.5h come out of the stove forging.
Step 2, mould forging step：Mould is made of Preform Die and molding die, and respectively Preform Die and into
Forging making is carried out in pattern tool：
（1）Preform Die forges：Preform Die be one for the big platform that is relatively large in diameter, when forging in blocker jumping-up
Method forges a great circle, and by jumping-up forging method when jumping-up forges, when jumping-up is divided into 4 progress jumping-ups, and promotes every time
Measure as 60mm, and the method delayed in jumping-up using a upsetting one carries out jumping-up, one of this forging is forged in Preform Die
Big toroidal.
（2）Molding die forges：Molding die is made of core rod and outer die casing two parts：
Core rod is forging reverse shape, and when forging is cut core rod from middle longitudinal direction by electric saw, is equally divided into two portions
Point, and outer die casing is sleeved on outside core rod；
Forging after the completion of one end is forged is put into molding die forging other end great circle immediately, after remove outer die casing, point
Core is molded, takes out forging.
Preferably, to be tried one's best when the Preform Die forging in the step 2 and molding die forge fast, keep forging
When forging temperature be higher than final forging temperature, and final forging temperature is set to 920 DEG C.
Implement to prove, using this group of data, can largely reduce forging internal-external temperature difference during Forge Heating, reduce
Forging fracture rate, jumping-up promote relatively small, reduce to a certain extent when forging promotes and produce fracture and distort, one
Determine to add the temperature range of forging in degree, reduce heating times.
Some one exemplary embodiments that only the invention has been described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, foregoing description is regarded as illustrative in nature, and should not be construed as will to right of the present invention
Ask the limitation of protection domain.
Claims (1)
1. a kind of mould forging technology of dumbbell class cheese forging, it is characterised in that its forging technology process is：
Step 1, forging heating process：Forging is heated by multisection type before being forged, 350 DEG C of constant temperature keep 3-5h,
Can continue to heat after material temperature is uniform, when 850 DEG C of medium temperature, keeps the temperature 2-3h, after be heated to 1100-1180 DEG C of forging temperature as early as possible
Degree, 5-6h of insulation come out of the stove forging；
Step 2, mould forging step：Mould is made of Preform Die and molding die, and respectively in Preform Die and shaping mould
Forging making is carried out in tool：
（1）Preform Die forges：Preform Die be one for the big platform that is relatively large in diameter, when forging in Preform Die Means of Upsetting
A great circle is forged, by jumping-up forging method when jumping-up forges, when jumping-up, is divided into 3-5 progress jumping-ups, and in jumping-up
The method delayed using a upsetting one carries out jumping-up, is promoted using multiple jumping-up during jumping-up, and push-in stroke is 50-70mm every time, pre-
To be tried one's best fast, be protected when a big toroidal of this forging, Preform Die forging and molding die forging are forged in forging mould
Forging temperature is higher than final forging temperature when holding forging, and final forging temperature is set to 900-950 DEG C；
（2）Molding die forges：Molding die is made of core rod and outer die casing two parts：
Core rod is forging reverse shape, and when forging is cut core rod from middle longitudinal direction by electric saw, is equally divided into two parts, and
Outer die casing is sleeved on outside core rod；
Forging after the completion of one end is forged is put into molding die forging other end great circle immediately, after remove outer die casing, separate mould
Core, takes out forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454552.9A CN106077383B (en) | 2016-06-20 | 2016-06-20 | A kind of mould forging technology of dumbbell class cheese forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454552.9A CN106077383B (en) | 2016-06-20 | 2016-06-20 | A kind of mould forging technology of dumbbell class cheese forging |
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| Publication Number | Publication Date |
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| CN106077383A CN106077383A (en) | 2016-11-09 |
| CN106077383B true CN106077383B (en) | 2018-04-24 |
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| CN201610454552.9A Active CN106077383B (en) | 2016-06-20 | 2016-06-20 | A kind of mould forging technology of dumbbell class cheese forging |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413997A (en) * | 2017-09-30 | 2017-12-01 | 徐州九鼎机电总厂 | A kind of forging method of dumbbell |
| CN108856615B (en) * | 2018-05-03 | 2020-06-05 | 兰州兰石集团有限公司 | Rolling forming method for large cake forging |
| CN110369656B (en) * | 2019-07-23 | 2024-05-14 | 中国机械总院集团北京机电研究所有限公司 | Closed precision forging process for duplex gear forgings |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH069725B2 (en) * | 1986-04-11 | 1994-02-09 | 本田技研工業株式会社 | Molding method for stove |
| US5544413A (en) * | 1994-06-10 | 1996-08-13 | Omni Forge, Inc. | Method and apparatus for manfacturing a flashless metal connecting rod |
| JP2010221246A (en) * | 2009-03-23 | 2010-10-07 | Toyota Motor Corp | Method for manufacturing forging product |
| CN102297116A (en) * | 2011-07-18 | 2011-12-28 | 上海电气压缩机泵业有限公司 | Large die-forged connecting rod for compressors |
| CN104014703A (en) * | 2014-06-16 | 2014-09-03 | 安徽省瑞杰锻造有限责任公司 | Forging process for C12MoV twisting rollers |
| CN105290299B (en) * | 2015-12-09 | 2017-12-01 | 四川众友机械有限责任公司 | A kind of forging processing technology of long-shaft type axle shaft gear |
| CN105583351B (en) * | 2015-12-19 | 2018-06-15 | 许昌中兴锻造有限公司 | The medium-sized flat forging process of slip shaft yoke |
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