CN106040944B - A kind of light-duty slip yoke forging mold and its combined forging technique - Google Patents
A kind of light-duty slip yoke forging mold and its combined forging technique Download PDFInfo
- Publication number
- CN106040944B CN106040944B CN201610635313.3A CN201610635313A CN106040944B CN 106040944 B CN106040944 B CN 106040944B CN 201610635313 A CN201610635313 A CN 201610635313A CN 106040944 B CN106040944 B CN 106040944B
- Authority
- CN
- China
- Prior art keywords
- forging
- slip yoke
- light
- push rod
- die cavity
- 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.)
- Active
Links
Classifications
-
- 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
- B21J5/025—Closed die 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
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/027—Trimming
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of light-duty slip yoke forging mold and its combined forging technique, the blocking die cavity of forging mold is made up of the bar portion chamber and Liang Gecha ears chamber being mutually communicated, lower module is provided with locating slot between being located at Liang Gecha ears chamber, and the bar portion intracavitary of lower module is provided with resilience push rod component.The technique of the light-duty slip yoke of combined forging, comprises the following steps：（1）Blanking；（2）Jumping-up；（3）Blocking；（4）Finish-forging；（5）Trimming.The present invention is in the forging process of light-duty slip yoke, when make it that workman places steps of manufacturing blanks by the locating slot in blocking die cavity and resilience push rod component, it is easy to steps of manufacturing blanks being accurately placed into the blocking die cavity of forging mold on high power screw press, steps of manufacturing blanks is reached preferable horizontal positioned state simultaneously, reduce the labor intensity of workman and operating efficiency can be improved well；And use with gauge diameter identical raw material as forging blank, it is not necessary to bar portion is heated, energy resource consumption can be reduced.
Description
Technical field
The present invention relates to slip yoke manufacturing technology field, and in particular to a kind of light-duty slip yoke forging mold and its joint forging
Make technique.
Background technology
The forging of conventional slip fork as depicted in figs. 1 and 2, belongs to hammering die forging, the power transmission shaft conventionally designed is slided
Moving fork forging technology is to use same forging equipment, and process includes pulling base-blocking-finish-forging-hot trimming, and structure is not
Same product must design different base die cavities, and very big trouble, this forging are caused to Standardized Design and operative
Make technique and there is problems with：
1st, light-duty slip yoke structure belongs to the elongated product of the wide bar of fork, and the fork of slip yoke is relatively wide, in order to meet slip
The forming requirements of fork fork need selection diameter than larger raw material；Needing the blank from a diameter of 55mm specifications could expire
Sufficient fork shaping, and the gauge diameter of light-duty slip yoke is 36mm, in order to improve the stock utilization of bar portion, the bar portion of slip yoke
Repeatedly pulling is needed to can be only achieved forming requirements, pulling base uses open impression, and workman is pressed from both sides using pliers during pulling
Firmly one end of blank, while operation equipment is pulled out to blank, the operating technology that bar portion pulling quality fully relies on workman is come
Ensure, so pulling base requires very high to the operation skill of workman, labor intensity is big and percent defective is high；
The bar portion sectional area pulled out after base is still bigger than normal with respect to the sectional area of slip yoke forging bar portion, so finish-forging part
Larger flash occurs in bar portion, reduces utilization rate of raw materials.
2nd, the forging technology of light-duty slip yoke prevents the blank after pulling to be accurately positioned over blocking die cavity from level, easily
Finish-forging is caused to lack the problems such as material, scraper are folded, thus it is higher to the design requirement of slip yoke blocking die cavity, it is pre- in actual production
Forging positioning and technique solidify highly difficult；The shape design of tradition pulling platform it cannot be guaranteed that every blank pulls out the uniformity of length,
Subjective operational capacity dependence to workman is too strong, and the operation skill to workman requires very high；
3rd, light-duty slip yoke forging technology heating in medium frequency heats to be overall, and blank heating power consumption is big, waste of materials, increase forging
Cause this；And light-duty slip yoke forging technology uses hammering technique, the Single arm mould needed for hammering is more heavy, installs tired
Difficulty, equipment running noises are big；
4th, the trimming of conventional slip fork technique is hot trimming, and forging is also easy to produce bending, and the uniformity of forging quality is bad.
The content of the invention
There is provided a kind of light-duty slip yoke forging mold and its joint in order to solve weak point of the prior art by the present invention
Forging technology.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of light-duty slip yoke forging mold, including
Upper module and lower module, the blocking die cavity and finish-forging die cavity between upper module and lower module with slip yoke forging, blocking die cavity
It is made up of the bar portion chamber and Liang Gecha ears chamber being mutually communicated, the upper surface of the lower module is set between being located at Liang Gecha ears chamber
The locating slot for correcting slip yoke forging front and back position is equipped with, the bar portion intracavitary of lower module is provided with for correcting slip yoke forging
The resilience push rod component of part horizontal level.
It is used as a kind of further improvement of light-duty slip yoke forging mold of the present invention：The locating slot is in the footpath of blocking die cavity
It is circular arc to the section in direction, the central axis of its longitudinal center line and blocking die cavity is located on same perpendicular, and fixed
End face flush of end face of the position groove away from bar portion chamber one end with pitching ear's chamber.
It is used as a kind of further improvement of light-duty slip yoke forging mold of the present invention：The resilience push rod component by push rod and
Spring is constituted, and the bar portion bottom of chamber portion of lower module is provided with the blind hole for installing resilience push rod component, and the push rod passes through spring
In the blind hole, the lower end of spring is fixed in blind hole, and the upper end of spring is fixedly connected with push rod, and the upper end of push rod is stretched out
Blind hole is set.
It is used as a kind of further improvement of light-duty slip yoke forging mold of the present invention：The top of the push rod, which has, to be easy to put
Put the arc-shaped slot of slip yoke forging.
Using the technique of the above-mentioned light-duty slip yoke of forging mold combined forging, comprise the following steps：
（1）Blanking：Forging blank is used as using with light-duty slip yoke gauge diameter identical raw material；
（2）Jumping-up：The diameter of the blank diameter design horizontal forging and upsetting machine base work step fork used according to hammer forging technique, and according to
The shape of product determines the connection shape between fork and bar portion, it is ensured that the stock volume of coupling part meets forging finish forging
Materials, are then heated to blank end, and heating-up temperature is 1100-1180 DEG C, and blank to be upsetting is placed into flat forging afterwards
In the blocking cavity plate that upset forging die has on machine, steps of manufacturing blanks blank is formed after the completion of jumping-up；
（3）Blocking：Steps of manufacturing blanks is placed into the blocking die cavity of forging mold on high power screw press, the process of placement
It is middle that the upset portion of steps of manufacturing blanks is placed on the locating slot in blocking die cavity, the front and back position of steps of manufacturing blanks is corrected by locating slot,
And the bar portion of steps of manufacturing blanks is placed on push rod, the horizontal level of steps of manufacturing blanks, after the completion of correction, manipulation are corrected by push rod and spring
Equipment forges to form pre- forging；
（4）Finish-forging：Take out pre- forging to be placed into the finish-forging die cavity of forging mold on high power screw press, controlling equipment
Finish-forging part is formed after forging；
（5）Trimming：Finish-forging part flash is cut off.
It is used as the further optimization of light-duty slip yoke combined forging technique of the invention：Blank end is added in the step 2
The temperature of heat is 1100 DEG C.
It is used as the further optimization of light-duty slip yoke combined forging technique of the invention：Horizontal forging and upsetting machine mould is adopted in the step 2
Use closed-die forging mould.
It is used as the further optimization of light-duty slip yoke combined forging technique of the invention：Pass through cool featherer in the step 5
Skill is cut off to finish-forging part flash.
Beneficial effect
1st, in light-duty slip yoke forging mold of the invention, before and after being provided with blocking die cavity for correcting slip yoke forging
The locating slot of position and the resilience push rod component for correcting slip yoke forging horizontal level, are enabled to by said structure
When workman places slip yoke forging, it is easy to which slip yoke forging is accurately placed into forging mold on high power screw press
In blocking die cavity, while making slip yoke forging reach preferable horizontal positioned state, the labor intensity and energy of workman are reduced very well
Raising operating efficiency；
2nd, in light-duty slip yoke combined forging technique of the invention, forging is used as using with gauge diameter identical raw material
Blank, it is not necessary to heated to bar portion, using local heating blank technology, can reduce energy resource consumption 15%；Make finish-forging part bar portion
Without flash, stock utilization 8% can be improved；
3rd, in light-duty slip yoke combined forging technique of the invention, horizontal forging and upsetting machine mould uses closed-die forging, and blank is in closing
Mold cavity in be molded, very low is required to the operation of workman, and shape uniformity after base, percent defective is dropped significantly
It is low；Horizontal forging and upsetting machine base only needs to once forge, and can improve production efficiency 20%；
4th, in light-duty slip yoke combined forging technique of the invention, slip yoke trimming uses cool trimming technology, forging bending
Amount is reduced to 0.1mm by 0.7mm, percent defective is declined 0.5%.
Brief description of the drawings
Fig. 1 is prior art hammering mold cavity arrangement schematic diagram；
Fig. 2 is that prior art hammering mould open type pulls out blocker schematic diagram；
Fig. 3 is horizontal forging and upsetting machine steps of manufacturing blanks schematic diagram of the present invention；
Fig. 4 is the structural representation of forging mold of the present invention；
Fig. 5 is the top view of forging mold lower module of the present invention；
Fig. 6 is E-E sectional views among Fig. 5；
Structural representation when Fig. 7 is steps of manufacturing blanks horizontal positioned of the present invention；
Marked in figure：1st, upper module, 2, lower module, 3, blocking die cavity, 4, fork ear chamber, 5, bar portion chamber, 6, locating slot, 7,
Push rod, 8, slip yoke forging, 9, spring, 10, blocker, 11, finish impression.
Embodiment
Further detailed description is carried out to the present invention with reference to the accompanying drawings and examples.
As shown in the figure：A kind of light-duty slip yoke forging mold, including upper module 1 and lower module 2, upper module 1 and lower module 2
Between there is the blocking die cavity 3 and finish-forging die cavity of slip yoke forging 8, blocking die cavity 3 is pitched by the bar portion chamber 5 being mutually communicated and two
Ear's chamber 4 is constituted, and the upper surface of the lower module 2 is provided with for correcting slip yoke forging 8 between being located at Liang Gecha ears chamber 4
The locating slot 6 of front and back position, locating slot 6 is circular arc in the section of the radial direction of blocking die cavity 3, its longitudinal center line with it is pre-
The central axis of forge chamber 3 is located on same perpendicular, and end face of the locating slot 6 away from the one end of bar portion chamber 5 is with pitching ear's chamber 4
End face flush.The resilience push rod group for correcting the horizontal level of slip yoke forging 8 is provided with the bar portion chamber 5 of lower module 2
Part.Resilience push rod component is made up of push rod 7 and spring 9, and the bottom of bar portion chamber 5 of lower module 2 is provided with for installing resilience push rod
The blind hole of component 7, the push rod 7 is arranged in the blind hole by spring 9, and the lower end of spring 9 is fixed in blind hole, spring 9
Upper end is fixedly connected with push rod 7, and the upper end of push rod 7 is stretched out blind hole and set.And the top of push rod 7 have be easy to place slip yoke forging
The arc-shaped slot of part 8.
A kind of combined forging technique of light-duty slip yoke forging mold, comprises the following steps：
（1）Blanking：Forging blank is used as using with light-duty slip yoke gauge diameter identical raw material；
（2）Jumping-up：The diameter of the blank diameter design horizontal forging and upsetting machine base work step fork used according to hammer forging technique, and according to
The shape of product determines the connection shape between fork and bar portion, it is ensured that the stock volume of coupling part meets forging finish forging
Materials, are then heated to blank end, and heating-up temperature is 1100 DEG C, blank to be upsetting is placed on horizontal forging and upsetting machine put down afterwards
In the blocking cavity plate of forging mould（Horizontal forging and upsetting machine mould uses closed-die forging mould）, steps of manufacturing blanks blank is formed after the completion of jumping-up；
Horizontal forging and upsetting machine mould belongs to closed-die forging, and blank is molded in the mold cavity of closing, and base shape is completely by mould
Die cavity determines that workman operates according to normal operational procedure just can be so that the operation to workman requires very low, and shape after base
Shape uniformity, the percent defective caused by base is improper is substantially reduced；Horizontal forging and upsetting machine base only needs to once forge, and flat forging
It is more shorter than high power screw press that the single of machine forges the time, can improve production efficiency.
（3）Blocking：Steps of manufacturing blanks is placed into the blocking die cavity of forging mold on high power screw press, the process of placement
It is middle that the upset portion of steps of manufacturing blanks is placed on the locating slot in blocking die cavity, the front and back position of steps of manufacturing blanks is corrected by locating slot,
And the bar portion of steps of manufacturing blanks is placed on push rod, the horizontal level of steps of manufacturing blanks, after the completion of correction, manipulation are corrected by push rod and spring
Equipment forges to form pre- forging；
When steps of manufacturing blanks is put into blocking die cavity horizontal positioned is optimal state, and steps of manufacturing blanks is placed in blocking die cavity
Front and back position directly affects the quality of forging.In order to reach this purpose, Preform Die is designed on high power screw press
During die cavity, it is contemplated that the problem of steps of manufacturing blanks is positioned before and after blocking die cavity, a locating slot is designed on the inside of blocking die cavity fork,
The end face of locating slot is the benchmark that steps of manufacturing blanks is placed, and the end face that steps of manufacturing blanks is directly placed on locating slot by workman in operation can
With；The problem of for steps of manufacturing blanks horizontal positioned, a resilience push rod component is designed, resilience push rod is not when working in freely
State, resilience push rod is pressurized when steps of manufacturing blanks is put, and the height after compression just causes steps of manufacturing blanks to be placed horizontally at pre- forge
Chamber.It is easy for putting when placing steps of manufacturing blanks using blocking die cavity detent mechanism workman just, reduces the labor intensity and energy of workman
Operating efficiency is improved well.
（4）Finish-forging：Take out pre- forging to be placed into the finish-forging die cavity of forging mold on high power screw press, controlling equipment
Finish-forging part is formed after forging；
（5）Trimming：Finish-forging part flash is cut off by cool trimming technology.
It is proven, after a kind of light-duty slip yoke combined forging technique of the present invention and its forging mold：
1. the stock utilization of forging improves 8%；
2. production efficiency improves 20%；
3. percent defective declines 0.5%；
4. save energy consumption 15%;
Compared with traditional handicraft, advantages of the present invention is by taking certain propeller shaft slip fork as an example：
Certain propeller shaft slip is pitched：
Annual production 800000 or so, forge weight is 1.8kg, and former cutting stock weight is 2.26kg, and stock utilization is 80%.
Single-piece price is 9 yuan.
1. stock utilization improves 8%, and existing cutting stock weight is 2.05kg,
Saving steel：800000*2.26-2.05=168000kg；
2. production efficiency improves 20%；
Class's production increases to 1800/class by 1100；
3. percent defective declines 0.5%；
Save：800000*0.005*9=36000 yuan；
4. energy consumption 15% is saved, every blank has 0.6Kg to heat；
Save：800000*0.6*0.5=240000 yuan；
Comprehensive whole production process slip yoke saves about 780,000 yuan of expense every year.
Above simply by taking certain slip yoke as an example, my company has 4 kinds using the slip yoke of this kind of combined forging technology,
Every year can be for company's reduction production cost about：3000000 yuan or so.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent variations and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (4)
1. a kind of technique for forging light-duty slip yoke with light-duty slip yoke forging mold, it is characterised in that：Light-duty slip used
Pitching forging mold includes upper module（1）And lower module（2）, upper module（1）And lower module（2）Between have slip yoke forging (8)
Blocking die cavity（3）With finish-forging die cavity, blocking die cavity（3）By the bar portion chamber being mutually communicated（5）With Liang Gecha ears chamber（4）Structure
Into the lower module（2）Upper surface be located at Liang Gecha ears chamber（4）Between be provided with for correcting slip yoke forging anteroposterior position
The locating slot put（6）, lower module（2）Bar portion chamber（5）Inside it is provided with the resilience for correcting slip yoke forging (8) horizontal level
Push rod component；
The locating slot（6）In blocking die cavity（3）The section of radial direction be circular arc, its longitudinal center line and blocking die cavity
（3）Central axis be located on same perpendicular, and locating slot（6）Away from bar portion chamber（5）The end face of one end and fork ear chamber
（4）End face flush, the resilience push rod component is by push rod（7）And spring（9）Constitute, lower module（2）Bar portion chamber（5）Bottom
Portion is provided with the blind hole for installing resilience push rod component, the push rod（7）Pass through spring（9）In the blind hole, spring
（9）Lower end be fixed in blind hole, spring（9）Upper end and push rod（7）It is fixedly connected, push rod（7）Upper end stretch out blind hole set
Put, the push rod（7）Top have be easy to place slip yoke forging (8) arc-shaped slot；
The technique comprises the following steps：
（1）Blanking：Forging blank is used as using with light-duty slip yoke gauge diameter identical raw material；
（2）Jumping-up：The blank diameter used according to hammer forging technique designs the diameter of horizontal forging and upsetting machine base work step fork, and according to product
Shape determine connection shape between fork and bar portion, it is ensured that the stock volume of coupling part meets forging finish forging use
Material, is then heated to blank end, and heating-up temperature is 1100-1180 DEG C, and blank to be upsetting is placed into horizontal forging and upsetting machine afterwards
In the blocking cavity plate of upper upset forging die tool, steps of manufacturing blanks blank is formed after the completion of jumping-up；
（3）Blocking：Steps of manufacturing blanks is placed into the blocking die cavity of forging mold on high power screw press, will during placement
The upset portion of steps of manufacturing blanks is placed on the locating slot in blocking die cavity, and the front and back position of steps of manufacturing blanks is corrected by locating slot, and will
The bar portion of steps of manufacturing blanks is placed on push rod, and the horizontal level of steps of manufacturing blanks, after the completion of correction, controlling equipment are corrected by push rod and spring
Forge to form pre- forging；
（4）Finish-forging：Take out pre- forging to be placed into the finish-forging die cavity of forging mold on high power screw press, controlling equipment is forged
Finish-forging part is formed afterwards；
（5）Trimming：Finish-forging part flash is cut off.
2. a kind of technique that light-duty slip yoke is forged with light-duty slip yoke forging mold according to claim 1, its feature
It is：The step（2）In to blank end heat temperature be 1100 DEG C.
3. a kind of technique that light-duty slip yoke is forged with light-duty slip yoke forging mold according to claim 1, its feature
It is：The step（2）Middle horizontal forging and upsetting machine mould uses closed-die forging mould.
4. a kind of technique that light-duty slip yoke is forged with light-duty slip yoke forging mold according to claim 1, its feature
It is：The step（5）In finish-forging part flash is cut off by cool trimming technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635313.3A CN106040944B (en) | 2016-08-05 | 2016-08-05 | A kind of light-duty slip yoke forging mold and its combined forging technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635313.3A CN106040944B (en) | 2016-08-05 | 2016-08-05 | A kind of light-duty slip yoke forging mold and its combined forging technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106040944A CN106040944A (en) | 2016-10-26 |
| CN106040944B true CN106040944B (en) | 2017-09-29 |
Family
ID=57480183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610635313.3A Active CN106040944B (en) | 2016-08-05 | 2016-08-05 | A kind of light-duty slip yoke forging mold and its combined forging technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106040944B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406246A (en) * | 2018-05-29 | 2018-08-17 | 河南九环汽车零部件有限公司 | A kind of production technology of truck drive shaft flange york |
| CN109773097B (en) * | 2018-12-29 | 2020-07-07 | 株洲中车天力锻业有限公司 | Earring forging forming method |
| CN112453310B (en) * | 2020-10-30 | 2023-05-09 | 重庆传动轴股份有限公司 | Energy-saving rear spline shaft forging process |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3507264B2 (en) * | 1996-12-24 | 2004-03-15 | 住友重機械工業株式会社 | Forging method and forging device for end-shaped bar-shaped product |
| CN103447406B (en) * | 2013-08-16 | 2016-05-25 | 广东华田电器有限公司 | Floating type Work sheet conveying device |
| CN203592101U (en) * | 2013-10-24 | 2014-05-14 | 许昌中兴锻造有限公司 | Sliding fork forging mold |
| CN204209052U (en) * | 2014-11-05 | 2015-03-18 | 许昌中兴锻造有限公司 | Transmission shaft fork axle finish-forging die |
| CN205289616U (en) * | 2015-12-19 | 2016-06-08 | 许昌中兴锻造有限公司 | Transmission shaft disc bead fork mould |
| 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 |
| CN205851766U (en) * | 2016-08-05 | 2017-01-04 | 许昌中兴锻造有限公司 | A kind of light-duty slip yoke forging mold |
-
2016
- 2016-08-05 CN CN201610635313.3A patent/CN106040944B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106040944A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106040944B (en) | A kind of light-duty slip yoke forging mold and its combined forging technique | |
| CN110405121A (en) | A kind of forging method of Heavy Back-Up Roll forging | |
| CN105935732A (en) | Embryo mold forging process for forge piece with holes in step at one end | |
| CN103121075B (en) | Hot forging method for transmission shaft yoke with horizontal yoke part | |
| CN109226618A (en) | Mold is used in the compound Forging Technology of high-power wind turbine main shaft and forging and stamping | |
| CN105328096A (en) | Forming method of die forging clamps made of titanium alloy | |
| CN109226617A (en) | A kind of high-power wind turbine main shaft large flange quick shaping process | |
| CN108856630A (en) | The cold-heading molding technique of automobile unusual casing | |
| CN102873240A (en) | Non-flash forging process for middle flanges of transmission shafts | |
| CN102240772A (en) | Forming method of single throw crankshaft forgings | |
| CN112453297A (en) | Forging and forming method of connected track shoe forging hammer | |
| CN203265502U (en) | Hot forging device for transmission shaft joint fork with horizontal fork part | |
| CN104815936A (en) | Forge forming method and special mold for fork type pieces such as high reinforcing bars and thin web plates | |
| CN104801642A (en) | Forging technique of gear coupling | |
| CN105666146B (en) | The U-shaped ring automatic assembly line of electric armour clamp and its production technology | |
| CN106623742B (en) | A kind of efficient automobile hollow out front axle forging method | |
| CN104625626B (en) | Wrench manufacturing method thereof | |
| CN106345966B (en) | A kind of the Lower Sway Arm of Automobile production technology | |
| CN100391648C (en) | Method for manufacturing oil pipe in external upset | |
| CN105964846A (en) | Hollow convex tooth type forging and molding method thereof | |
| CN102989989A (en) | Forging process of heavy truck steering knuckle | |
| CN101722270A (en) | Wind driven generator principal shaft molding technique | |
| CN204912637U (en) | Forging molding system of many journal stirrups spare part | |
| CN116274816A (en) | Forging die for shaft metal forgings and forging forming method | |
| CN202387901U (en) | Combined type upset head die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |