CN106040944A - Light slip yoke forging die and combined forging process thereof - Google Patents
Light slip yoke forging die and combined forging process thereof Download PDFInfo
- Publication number
- CN106040944A CN106040944A CN201610635313.3A CN201610635313A CN106040944A CN 106040944 A CN106040944 A CN 106040944A CN 201610635313 A CN201610635313 A CN 201610635313A CN 106040944 A CN106040944 A CN 106040944A
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- forging
- slip yoke
- light
- push rod
- die cavity
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a light slip yoke forging die and a combined forging process thereof. A pre-forging cavity of the forging die consists of a rod cavity and two yoke lug cavities which communicate with one another, a positioning groove is formed in a lower module and positioned between the two yoke lug cavities, and a springback ejector rod assembly is arranged in the rod cavity of the lower module. The combined forging process of a light slip yoke comprises the following steps: (1) feeding; (2) upsetting; (3) pre-forging; (4) carrying out finish forging; and (5) trimming edges. In the forging process of the light slip yoke, when a worker places a blank making piece, the blank making piece can be quite easily placed in the pre-forging cavity of the forging die on a high-energy screw press accurately by the positioning groove and the springback ejector rod assembly in the pre-forging cavity, at the same time, the blank making piece is horizontally placed in an ideal state, the labor intensity of the worker is reduced, and the work efficiency can be improved well. In addition, a raw material of which the diameter is the same as that of a rod is used as a forging blank, the rod is not required to be heated, and energy consumption can be reduced.
Description
Technical field
The present invention relates to slip yoke manufacturing technology field, be specifically related to a kind of light-duty slip yoke forging mold and combine forging
Make technique.
Background technology
Conventional slip fork forging as depicted in figs. 1 and 2, belongs to hammering die forging, and the power transmission shaft conventionally designed is sliding
Moving fork Forging Technology is to use same forging equipment, and operation includes pulling out base blocking finish-forging hot trimming, and structure is not
Same product must design different base die cavities, causes the biggest trouble, this forging to Standardized Design and operative
Make technique there is problems in that
1, light-duty slip yoke structure belongs to the product that the wide bar of fork is elongated, and the fork of slip yoke is relatively wide, in order to meet slip yoke fork
The forming requirements in portion needs the raw material selecting diameter bigger；Need the blank selecting a diameter of 55mm specification could meet fork
Portion's molding, and a diameter of 36mm in bar portion of light-duty slip yoke, in order to improve the stock utilization in bar portion, the bar portion of slip yoke needs
Repeatedly pulling can be only achieved forming requirements, and pulling base uses open impression, and during pulling, workman utilizes pliers to clamp base
One end of material, blank is pulled out by operation equipment simultaneously, and bar portion pulling quality fully relies on the operating technology of workman and ensures,
So the operation skill of workman is required the highest by pulling base, labor intensity is big and percent defective is high；
Bar portion sectional area after pulling base is bigger than normal relative to the sectional area in slip yoke forging bar portion, so the bar portion of finish-forging part
There will be bigger burr, reduce utilization rate of raw materials.
2, the blank after the Forging Technology of light-duty slip yoke makes pulling level can not be positioned over blocking die cavity, easily accurately
Causing finish-forging to lack the problems such as material, scraper folding, therefore the design to slip yoke blocking die cavity requires higher, pre-in actual production
Forging location and technique solidification are highly difficult；The shape design of tradition pulling platform it cannot be guaranteed that the concordance of every blank pulling length,
Too strong to the subjective operational capacity dependency of workman, the operation skill of workman is required the highest；
3, light-duty slip yoke Forging Technology heating in medium frequency is overall heating, and blank heating power consumption is big, wastes material, and increase is forged into
This；And light-duty slip yoke Forging Technology uses hammering technique, the Single arm mould needed for hammering is the heaviest, installation difficulty,
Equipment running noises is big；
4, the technique trimming of conventional slip fork is hot trimming, and forging is easily generated bending, and the concordance of forging quality is bad.
Summary of the invention
The present invention is to solve weak point of the prior art, it is provided that a kind of light-duty slip yoke forging mold and associating thereof
Forging Technology.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of light-duty slip yoke forging mold, including
Upper module and lower module, have blocking die cavity and the finish-forging die cavity of slip yoke forging, blocking die cavity between upper module and lower module
Being made up of the chamber, bar portion being mutually communicated and Liang Gecha ear chamber, the upper surface of described lower module sets between Liang Gecha ear chamber
Being equipped with the locating slot for correcting slip yoke forging front and back position, the bar portion intracavity of lower module is provided with for correcting slip yoke forging
The resilience push rod component of part horizontal level.
Further improvement as a kind of light-duty slip yoke forging mold of the present invention: described locating slot is in the footpath of blocking die cavity
Being circular arc to the cross section in direction, its longitudinal center line is positioned on same perpendicular with the central axis of blocking die cavity, and fixed
The end face flush in the position groove end face away from one end, chamber, bar portion and fork ear chamber.
Further improvement as a kind of light-duty slip yoke forging mold of the present invention: described resilience push rod component by push rod and
Spring is constituted, and is provided with the blind hole for installing resilience push rod component bottom the chamber, bar portion of lower module, and described push rod passes through spring
Being arranged in this blind hole, the lower end of spring is fixed in blind hole, and the upper end of spring is fixing with push rod to be connected, and the upper end of push rod is stretched out
Blind hole is arranged.
Further improvement as a kind of light-duty slip yoke forging mold of the present invention: the top of described push rod has to be easy to put
Put the arc-shaped slot of slip yoke forging.
The technique utilizing the above-mentioned light-duty slip yoke of forging mold combined forging, comprises the following steps:
(1) blanking: use the raw material identical with light-duty slip fork arm portion diameter as forging blank；
(2) jumping-up: according to the diameter of the blank diameter design horizontal forging and upsetting machine base work step fork that hammer forging technique uses, and according to product
Shape determine the connection shape between fork and bar portion, it is ensured that the stock volume of coupling part meet forging finish forging use
Material, then heats blank end, and heating-up temperature is 1100-1180 DEG C, afterwards blank to be upsetting is placed into horizontal forging and upsetting machine
In the blocking die of upper upset forging die tool, jumping-up forms steps of manufacturing blanks blank after completing；
(3) blocking: steps of manufacturing blanks be placed in 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, by position before and after locating slot correction steps of manufacturing blanks, and will
The bar portion of steps of manufacturing blanks is placed on push rod, is corrected the horizontal level of steps of manufacturing blanks, after having corrected, controlling equipment by push rod and spring
Forge the pre-forging of formation；
(4) finish-forging: taking out pre-forging and be placed in the finish-forging die cavity of forging mold on high power screw press, controlling equipment forges
Rear formation finish-forging part；
(5) trimming: finish-forging part burr are excised.
Further optimization as the present invention light-duty slip yoke combined forging technique: in described step 2, blank end is added
The temperature of heat is 1100 DEG C.
Further optimization as the present invention light-duty slip yoke combined forging technique: in described step 2, horizontal forging and upsetting machine mould is adopted
Use closed-die forging mould.
Further optimization as the present invention light-duty slip yoke combined forging technique: by cool featherer in described step 5
Finish-forging part burr are excised by skill.
Beneficial effect
1, in the light-duty slip yoke forging mold of the present invention, it is provided with in blocking die cavity for correcting slip yoke forging front and back position
Locating slot and for correcting the resilience push rod component of slip yoke forging horizontal level, enable to workman by said structure
When placing slip yoke forging, it is easy to slip yoke forging is placed into accurately the blocking of forging mold on high power screw press
In die cavity, make slip yoke forging reach preferable horizontal positioned state simultaneously, reduce the labor intensity of workman and can well carry
High workload efficiency；
2, in the light-duty slip yoke combined forging technique of the present invention, use the raw material identical with bar portion diameter as forging base
Material, it is not necessary to heat bar portion, uses local heating blank technology, can reduce energy resource consumption 15%；Make finish-forging part bar portion without
Burr, can improve stock utilization 8%；
3, in the light-duty slip yoke combined forging technique of the present invention, horizontal forging and upsetting machine mould uses closed-die forging, and blank is at the mould closed
Molding in tool die cavity, the operation to workman requires the lowest, and shape uniformity after base, make percent defective be substantially reduced；Flat
Forging mechanism base has only to once forge, and can improve production efficiency 20%；
4, in the light-duty slip yoke combined forging technique of the present invention, slip yoke trimming use cool trimming technology, forging amount of bow by
0.7mm is reduced to 0.1mm, makes percent defective decline 0.5%.
Accompanying drawing explanation
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 view in the middle of Fig. 5；
Fig. 7 is structural representation during steps of manufacturing blanks horizontal positioned of the present invention；
Labelling in figure: 1, upper module, 2, lower module, 3, blocking die cavity, 4, fork ear chamber, 5, chamber, bar portion, 6, locating slot, 7, top
Bar, 8, slip yoke forging, 9, spring, 10, blocker, 11, finish impression.
Detailed description of the invention
With embodiment, the present invention is carried out further detailed description below in conjunction with the accompanying drawings.
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 blocking die cavity 3 and the finish-forging die cavity of slip yoke forging 8, blocking die cavity 3 is by the chamber, bar portion 5 being mutually communicated and two forks
Ear chamber 4 is constituted, and the upper surface of described lower module 2 is provided with for correcting slip yoke forging 8 between Liang Gecha ear chamber 4
The locating slot 6 of front and back position, locating slot 6 is circular arc in the cross section of the radial direction of blocking die cavity 3, and its longitudinal center line is with pre-
The central axis in forge chamber 3 is positioned on same perpendicular, and locating slot 6 is away from the end face of one end, chamber 5, bar portion and fork ear chamber 4
End face flush.The resilience push rod group for correcting slip yoke forging 8 horizontal level it is provided with in the chamber, bar portion 5 of lower module 2
Part.Resilience push rod component is made up of push rod 7 and spring 9, is provided with for installing resilience push rod bottom the chamber, bar portion 5 of lower module 2
The blind hole of assembly 7, described push rod 7 is arranged in this blind hole by spring 9, and the lower end of spring 9 is fixed in blind hole, spring 9
Upper end is fixing with push rod 7 to be connected, and the upper end of push rod 7 is stretched out blind hole and arranged.And the top of push rod 7 have be easy to place slip yoke forging
The arc-shaped slot of part 8.
The combined forging technique of a kind of light-duty slip yoke forging mold, comprises the following steps:
(1) blanking: use the raw material identical with light-duty slip fork arm portion diameter as forging blank；
(2) jumping-up: according to the diameter of the blank diameter design horizontal forging and upsetting machine base work step fork that hammer forging technique uses, and according to product
Shape determine the connection shape between fork and bar portion, it is ensured that the stock volume of coupling part meet forging finish forging use
Material, then heats blank end, and heating-up temperature is 1100 DEG C, and blank to be upsetting is placed on horizontal forging and upsetting machine flat forging afterwards
In the blocking die of mould (horizontal forging and upsetting machine mould uses closed-die forging mould), jumping-up forms steps of manufacturing blanks blank after completing；
Horizontal forging and upsetting machine mould belongs to closed-die forging, and blank molding in the mold cavity closed, base shape is completely by mold cavity
Determining, workman is the most permissible according to the operation of normal rule of operation, and the operation to workman requires the lowest, and after base, shape is equal
Even unanimously, the percent defective caused because base is improper is substantially reduced；Horizontal forging and upsetting machine base has only to once forge, and horizontal forging and upsetting machine
It is more shorter than high power screw press that single forges the time, can improve production efficiency.
(3) blocking: steps of manufacturing blanks is placed in the blocking die cavity of forging mold on high power screw press, the process of placement
Middle the upset portion of steps of manufacturing blanks is placed on the locating slot in blocking die cavity, by position before and after locating slot correction steps of manufacturing blanks,
And the bar portion of steps of manufacturing blanks is placed on push rod, the horizontal level of steps of manufacturing blanks, after having corrected, manipulation is corrected by push rod and spring
Equipment forges the pre-forging of formation；
When steps of manufacturing blanks puts into blocking die cavity, horizontal positioned is optimal state, and steps of manufacturing blanks is before and after blocking die cavity is placed
Position directly affects the quality of forging.In order to reach this purpose, on high power screw press, design Preform Die die cavity
Time, it is contemplated that the problem that steps of manufacturing blanks positions before and after blocking die cavity, designs a locating slot, location inside blocking die cavity fork
The end face of groove is the benchmark that steps of manufacturing blanks is placed, and it is the most permissible that workman is directly placed on the end face of locating slot steps of manufacturing blanks when operation
?；For the problem of steps of manufacturing blanks horizontal positioned, designing a resilience push rod component, resilience push rod is in free shape when not working
State, resilience push rod pressurized putting steps of manufacturing blanks when, the height after pressurized just makes steps of manufacturing blanks be placed horizontally at blocking die cavity.
Utilizing blocking die cavity detent mechanism workman to be easy for just putting when placing steps of manufacturing blanks, the labor intensity the energy that reduce workman are fine
Raising work efficiency.
(4) finish-forging: take out pre-forging and be placed in 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 burr are excised by cool trimming technology.
It is proven, after using a kind of light-duty slip yoke combined forging technique of the present invention and forging mold thereof:
1. the stock utilization of forging improves 8%；
2. production efficiency improves 20%；
3. percent defective declines 0.5%；
4. energy efficient 15%;
Compared with traditional handicraft, advantages of the present invention is as a example by certain propeller shaft slip is pitched:
Certain propeller shaft slip is pitched:
Annual production about 800,000, 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 produces is increased to 1800/class by 1100；
3. percent defective declines 0.5%；
Save: 800000*0.005*9=36000 unit；
4. energy efficient 15%, every blank has 0.6Kg to need not heating；
Save: 800000*0.6*0.5=240000 unit；
Comprehensive this slip yoke of whole production process saves expense about 780,000 yuan every year.
Being as a example by certain slip yoke more than, my company uses the slip yoke of this kind of combined forging Technology to have 4 kinds,
Production cost can be reduced about every year: about 3,000,000 yuan for company.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people being familiar with this specialty
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being without departing from technical solution of the present invention content, according to the technical spirit pair of the present invention
Any simple modification, equivalent variations and the modification that above example is made, all still falls within the range of technical solution of the present invention.
Claims (8)
1. a light-duty slip yoke forging mold, including upper module (1) and lower module (2), upper module (1) and lower module (2) it
Between there is blocking die cavity (3) and the finish-forging die cavity of slip yoke forging (8), blocking die cavity (3) by the chamber, bar portion (5) being mutually communicated and
Liang Gecha ear chamber (4) is constituted, it is characterised in that: the upper surface of described lower module (2) is positioned between Liang Gecha ear chamber (4) and sets
It is equipped with the locating slot (6) for correcting slip yoke forging front and back position, is provided with for school in the chamber, bar portion (5) of lower module (2)
The resilience push rod component of positive slip yoke forging (8) horizontal level.
A kind of light-duty slip yoke forging mold, it is characterised in that: described locating slot (6) is at blocking
The cross section of the radial direction of die cavity (3) is circular arc, and its longitudinal center line and the central axis of blocking die cavity (3) are positioned at same perpendicular
In straight plane, and the end face flush of the end face that locating slot (6) is away from chamber, bar portion (5) one end and fork ear chamber (4).
A kind of light-duty slip yoke forging mold, it is characterised in that: described resilience push rod component is by pushing up
Bar (7) and spring (9) are constituted, and the bottom, chamber, bar portion (5) of lower module (2) is provided with the blind hole for installing resilience push rod component,
Described push rod (7) is arranged in this blind hole by spring (9), and the lower end of spring (9) is fixed in blind hole, the upper end of spring (9)
Fixing with push rod (7) and be connected, the upper end of push rod (7) is stretched out blind hole and is arranged.
A kind of light-duty slip yoke forging mold, it is characterised in that: the top tool of described push rod (7)
There is the arc-shaped slot being easy to place slip yoke forging (8).
5. utilize the technique of the light-duty slip yoke of forging mold combined forging described in claim 1, it is characterised in that: include following step
Rapid:
(1) blanking: use the raw material identical with light-duty slip fork arm portion diameter as forging blank；
(2) jumping-up: according to the diameter of the blank diameter design horizontal forging and upsetting machine base work step fork that hammer forging technique uses, and according to product
Shape determine the connection shape between fork and bar portion, it is ensured that the stock volume of coupling part meet forging finish forging use
Material, then heats blank end, and heating-up temperature is 1100-1180 DEG C, afterwards blank to be upsetting is placed into horizontal forging and upsetting machine
In the blocking die of upper upset forging die tool, jumping-up forms steps of manufacturing blanks blank after completing；
(3) blocking: steps of manufacturing blanks be placed in 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, by position before and after locating slot correction steps of manufacturing blanks, and will
The bar portion of steps of manufacturing blanks is placed on push rod, is corrected the horizontal level of steps of manufacturing blanks, after having corrected, controlling equipment by push rod and spring
Forge the pre-forging of formation；
(4) finish-forging: taking out pre-forging and be placed in the finish-forging die cavity of forging mold on high power screw press, controlling equipment forges
Rear formation finish-forging part；
(5) trimming: finish-forging part burr are excised.
The combined forging technique of the light-dutyest slip yoke, it is characterised in that: to hair in described step (2)
The temperature of base end heat is 1100 DEG C.
The combined forging technique of the light-dutyest slip yoke, it is characterised in that: flat forging in described step (2)
Machine mould uses closed-die forging mould.
The combined forging technique of the light-dutyest slip yoke, it is characterised in that: described step is passed through in (5)
Finish-forging part burr are excised 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 |
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| Publication Number | Publication Date |
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| CN106040944A true CN106040944A (en) | 2016-10-26 |
| CN106040944B CN106040944B (en) | 2017-09-29 |
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| 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 |
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Cited By (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 |
| CN109773097A (en) * | 2018-12-29 | 2019-05-21 | 株洲中车天力锻业有限公司 | A kind of earrings method for forging and molding |
| CN112453310A (en) * | 2020-10-30 | 2021-03-09 | 重庆传动轴股份有限公司 | Forging process of energy-saving rear spline shaft |
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| JPH10180394A (en) * | 1996-12-24 | 1998-07-07 | Sumitomo Heavy Ind Ltd | Method for forging edge part special shaped barlike article and device therefor |
| CN103447406A (en) * | 2013-08-16 | 2013-12-18 | 广东华田电器有限公司 | Floating type plate 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 |
| CN105583351A (en) * | 2015-12-19 | 2016-05-18 | 许昌中兴锻造有限公司 | Horizontal forging technology for middle-sized spline shaft yoke |
| CN205289616U (en) * | 2015-12-19 | 2016-06-08 | 许昌中兴锻造有限公司 | Transmission shaft disc bead fork mould |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10180394A (en) * | 1996-12-24 | 1998-07-07 | Sumitomo Heavy Ind Ltd | Method for forging edge part special shaped barlike article and device therefor |
| CN103447406A (en) * | 2013-08-16 | 2013-12-18 | 广东华田电器有限公司 | Floating type plate 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 |
| CN105583351A (en) * | 2015-12-19 | 2016-05-18 | 许昌中兴锻造有限公司 | Horizontal forging technology for middle-sized spline shaft yoke |
| CN205289616U (en) * | 2015-12-19 | 2016-06-08 | 许昌中兴锻造有限公司 | Transmission shaft disc bead fork mould |
| 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 |
Cited By (4)
| 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 |
| CN109773097A (en) * | 2018-12-29 | 2019-05-21 | 株洲中车天力锻业有限公司 | A kind of earrings method for forging and molding |
| CN109773097B (en) * | 2018-12-29 | 2020-07-07 | 株洲中车天力锻业有限公司 | Earring forging forming method |
| CN112453310A (en) * | 2020-10-30 | 2021-03-09 | 重庆传动轴股份有限公司 | Forging process of energy-saving rear spline shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106040944B (en) | 2017-09-29 |
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