CN107790964A - A kind of control shape control manufacturing process of hybrid excitation generator pawl pole - Google Patents
A kind of control shape control manufacturing process of hybrid excitation generator pawl pole Download PDFInfo
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- CN107790964A CN107790964A CN201610785495.2A CN201610785495A CN107790964A CN 107790964 A CN107790964 A CN 107790964A CN 201610785495 A CN201610785495 A CN 201610785495A CN 107790964 A CN107790964 A CN 107790964A
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- pawl pole
- excitation generator
- manufacturing process
- hybrid excitation
- hot forging
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 230000005284 excitation Effects 0.000 title claims abstract description 30
- 238000005242 forging Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 238000009966 trimming Methods 0.000 claims abstract description 10
- 238000000137 annealing Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 238000007730 finishing process Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 4
- 238000000641 cold extrusion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000002525 ultrasonication Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- 239000002918 waste heat Substances 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to hybrid excitation generator pawl pole Forming Technique field, the control shape control manufacturing process of especially a kind of hybrid excitation generator pawl pole, comprise the following steps：1) blanking；2) heat；3) hot forging；4) it is heat-treated；5) descale is handled；6) cold-finishing；7) machining；8) destressing is handled, wherein, heating, hot forging and heat treatment step form tinuous production by bus marco and realize automated production, hot forging uses multistation high-speed precision hot forging equipment, by pier base, preform, shaping and trimming process are integrated eventually, the control and optimization to pawl pole magnetic property are realized on the premise of ensureing that pawl pole size shape meets drawing requirement, so that the quality of production stability of pawl pole increases substantially, while it may advantageously facilitate the further raising of hybrid excitation generator combination property.
Description
Technical field
The present invention relates to hybrid excitation generator pawl pole Forming Technique field, especially a kind of composite excitation generates electricity
The control shape control manufacturing process of machine pawl pole.
Background technology
Hybrid excitation generator is that one kind for being grown up based on AC generator for vehicle high power lightweight is new with pawl pole
The pawl pole of type structure, referring to Figure of description, the difference of itself and conventional pawl pole is to leave magnet edge in pawl pole two sides
Caulking groove, assembling use when in magnet embedding groove can mosaic magnet so that alternating current generator is not increasing volume
In the case of increase considerably power output.
Conventional pawl pole early stage manufacturing process includes cast form, sheet metal forming and cold-extrusion shaping, wherein casting
Forming technology because there are lockhole and loose, easy leakage field in cast sturcture, eliminate increasingly by this method；Sheet metal forming can only be made
Make no yoke pawl pole；Cold-extrusion shaping process is various, equipment investment is big, and production in enormous quantities is less economical, at present both approaches
Also using also not extensive.The manufacturing process of current conventional pawl pole mainly uses forging technology, such as Jiangsu Longchengjingduan Co., Ltd
A kind of claw pole for automobile generator and its manufacturing process [publication number are disclosed in Chinese patent literature：CN1772413], its work
Skill step is a. blankings；B. heat；C. jumping-up；D. blocking；E. finish forge；F. trimming；G. magnetic annealing；H. cold shaping；Manage in Wuhan
Work university is disclosing a kind of method [publication number of generator magnetic pole precision forging in Chinese patent literature：
CN1935408A], its step is a. raw material blankings；B. blocking；C. finish forge；D. trimming；E. it is machined；Xi'an Communications University
A kind of process for forming generator claw pole of vehicle [publication number is disclosed in Chinese patent literature：CN102179464A], it is walked
Rapid is a. blankings；B. heat；C. radial direction upsetting squeeze；D. it is anti-to squeeze；E. machine；Granary Jiu Xin precision dies Co., Ltd is Chinese special
A kind of cold joint forming technology [publication number of generator claw pole temperature is disclosed in sharp document：CN103071978A], its step is (1)
Blanking；(2) shaping；(3) pier nose；(4) radial compression；(5) trimming；(6) phospholeum；(7) cold bending；(8) cold shaping；(9) press
Wire casing；(10) punching；Taizhou Vocational ＆ Technical College discloses a kind of automobile generator claw pole and its system in Chinese patent literature
Technique is made, its step is molded for a. blanks；B. it is heat-treated；C. shaping；D. phospholeum；E. cold shaping one；F. cold shaping two；G. it is smart
Processing.
And hybrid excitation generator pawl pole is because the magnet embedding groove required precision of two sides is higher, position master at present
To be manufactured by the way of machining or cold extrusion.As Jiangsu Longchengjingduan Co., Ltd discloses in Chinese patent literature
Two kinds of hybrid excitation generators pawl pole manufacturing process [publication number：CN103386586A, CN105024503A], its Patent
The step that CN103386586A is disclosed be blank forming-magnetic annealing-cold-finishing-brill endoporus-right boring internal control-car yoke end face-
Milling magnet embedding groove；The step that patent CN105024503A is disclosed is blanking-heating-forging-trimming -- cold-extruded-brill endoporus-essence
Boring internal control-car yoke end face.
The defects of prior art and deficiency：1st, many technological means are employed to control in the various manufacturing process of current pawl pole
The shape of pawl pole processed can meet drawing requirement, reach the target of control shape.But existing technological means all have ignored pawl pole not
Only dimensional structure will meet drawing requirement, and have strict requirements for magnetic property, therefore it is inadequate only to control shape.
For conventional pawl pole, because existing manufacturing process can meet corresponding magnetic property needs substantially substantially, thus
Influence degree of the manufacturing process for pawl pole magnetic property is had not focused on, does not have more to go to control pawl pole using special technique means
Magnetic property, but hybrid excitation generator is higher for generator high power lightweight requirements, further improves mixing and encourages
The magnetic property of magnetic generator pawl pole can not reduce generator output while pawl pole volume is substantially reduced, and this is for mixing
The development meaning of excitation generator is very big；2nd, existing hybrid excitation generator pawl pole manufacturing process does not consider residual stress pair
In the influence of pawl pole magnetic property, cold sizing and various cutting process are also add after blank shapes substantially.By various examinations
Test testing research to show, these additional process significantly increase the residual stress of pawl pole blank, not only reduce pawl pole finished product
Dimensional stability, also significantly reduce the magnetic property of pawl pole finished product.Therefore, for there is the mixing compared with high-tech requirement to encourage
For magnetic generator, magnetic property is caused while size shape meets drawing requirement by technological improvement pawl pole finished product
Reach and be most preferably necessary.
Temperature will after the integrated difficult point of process is beat during the multistation continuous production of each finish forge product and forged
Ask all different, temperature needs cost very long after productive temp during multistation continuous production and forging are used for mixed excitation claw-pole
Time gropes to obtain with trial and error, and because tissue of each product after different forgings at temperature is different with performance, needs
The heat treatment after forging technological parameter to be matched and destressing processing, which are set, could obtain preferable mechanical property and magnetic property.
It is difficult examination that optimized parameter when being exactly integrated use different technologies means in brief under some technical parameter condition couplings, which obtains,
It is many to test sample, workload is very big and field test cost is very high.
The content of the invention
The technical problem to be solved in the present invention is：Exist to solve existing hybrid excitation generator pawl pole manufacturing process
Blank needs to increase cold sizing and various cutting process after shaping substantially, it will be apparent that the residual stress of pawl pole blank is added, and then
The dimensional stability and magnetic property problem of pawl pole finished product are significantly reduced, the invention provides a kind of hybrid excitation generator use
The control shape control manufacturing process of pawl pole, comprises the following steps：1) blanking；2) heat；3) hot forging；4) it is heat-treated；5) descale
Processing；6) cold-finishing；7) machining；8) destressing is handled, wherein, heating, hot forging and heat treatment step pass through bus marco
Form tinuous production and realize automated production, hot forging uses multistation high-speed precision hot forging equipment, by pier base, preform, end
Shaping and trimming process are integrated, are realized on the premise of ensureing that pawl pole size shape meets drawing requirement to pawl pole magnetic conductivity
The control and optimization of energy, so that the quality of production stability of pawl pole increases substantially, while may advantageously facilitate composite excitation
The further raising of generator combination property.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of control shape control manufacturing process of hybrid excitation generator pawl pole, comprises the following steps：1) blanking；2) add
Heat；3) hot forging；4) it is heat-treated；5) descale is handled；6) cold-finishing；7) machining；8) destressing is handled,
Wherein, heating, hot forging and heat treatment step form tinuous production by bus marco and realize automated production, heat
Forging uses multistation high-speed precision hot forging equipment, and by pier base, preform, shaping and trimming process are integrated eventually.
Preferably, after heat treatment is using connection net-bag type heat-treatment production line or incubator are forged after hot forging production line
Excess heat isothermal normalizing.
Preferably, 800 ± 10 DEG C of temperature after hot forging, 450-600 DEG C of isothermal normalizing temperature, normalizing soaking time 5-8h.
Preferably, punching machine is used to carry out cold-finishing process for face of the pawl pole without machining.
Preferably, numerically controlled lathe is used to carry out machining process for pawl pole key fitting surface.
Preferably, destressing processing is carried out to pawl pole, wherein, annealing temperature is 300-500 DEG C, annealing time 2-4h.
Preferably, blanking uses accurate shearing machine or sawing machine blanking, and raw material are mild steel of the phosphorus content less than 0.1% and surpassed
Mild steel.
Preferably, heating uses sensing heating stove heat, wherein, 1100-1300 DEG C of heating-up temperature.
Face of the pawl pole without machining：Magnet embedding groove, notch, pawl pole side, the pawl pole periphery of such as pawl pole；
Pawl pole key fitting surface：Mesopore, the yoke periphery of such as pawl pole.
The beneficial effects of the invention are as follows：
(1) the invention provides a kind of control shape control manufacturing process of hybrid excitation generator pawl pole, including following step
Suddenly：1) blanking；2) heat；3) hot forging；4) it is heat-treated；5) descale is handled；6) cold-finishing；7) machining；8) destressing
Processing, wherein, heating, hot forging and heat treatment step form tinuous production by bus marco and realize automated production, hot forging
Using multistation high-speed precision hot forging equipment, by pier base, preform, shaping and trimming process are integrated eventually, and the present invention solves
In background technology pawl pole manufacturing process only control shape not the property controlled the defects of, integrated use multistation is continuously given birth in prior art basis
The technological means such as excess heat isothermal normalizing, destressing processing proposes a kind of control shape control manufacturing process after production, forging, is ensureing pawl pole
Size shape realizes the control and optimization to pawl pole magnetic property on the premise of meeting drawing requirement, so that the life of pawl pole
Yield and quality stability increases substantially, while may advantageously facilitate the further raising of hybrid excitation generator combination property；
(2) the integrated poorly efficient transmission for avoiding adjacent inter process is used, can also omit the middle storage link of costliness, hot forging
Pawl pole shapes substantially afterwards, and portion size has reached finished product requirement；
(3) heat treatment after forging line using connecting waste heat after net-bag type heat-treatment production line or incubator are forged
Isothermal normalizing, the tissue defects of part after forging are eliminated, homogenize crystal grain, improve the magnetic property of pawl pole and life is greatly improved
Produce efficiency；
(4) punching machine is used to carry out cold-finishing process for face of the pawl pole subsequently without machining, such as the magnetic of pawl pole
Iron embedding groove, notch, pawl pole side, pawl pole periphery etc.；；
(5) machining process is carried out to the crucial fitting surface of pawl pole using numerically controlled lathe, ensures key position size essence
Degree meets drawing requirement, mesopore, the yoke periphery of such as pawl pole；
(6) destressing processing is carried out to pawl pole, 300-500 DEG C of annealing temperature, annealing time 2-4h, is eliminated residual in part
Residue stress, further stable dimensions and the magnetic property for improving pawl pole.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is illustrated using the front view structure of the embodiment of hybrid excitation generator pawl pole made of present invention process
Figure；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the B-B sectional views that pawl pole refers in Fig. 2；
Fig. 4 is the C-C sectional views that pawl pole refers in Fig. 2；
Fig. 5 is the structural representation after front and rear pawl pole assembling；
Fig. 6 is Fig. 5 D-D sectional views.
In figure：1. pawl pole body；1-1. positioning spline；2. pawl pole refers to；2-1. magnet embedding grooves；2-11. notch；2-2. pawl
Pole side；3. mesopore；4. pawl pole periphery；5. yoke end face；6. pawl pole refers to center line；7. yoke periphery；8. baseplane；9.
Outer inclined-plane；10. fan plane；11. permanent magnet.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
The present invention solves process collection present in prior art using the means of numerical simulation software combined process checking
Into difficult point is changed, using control variate method, i.e., certain several technical parameter is first fixed, such as 10/min of forging beat and forging
750 DEG C of temperature afterwards, then change destressing treatment temperature and soaking time to obtain corresponding product and performance parameter, obtain most
400 DEG C of annealing temperature under excellent properties of product.Then the technological parameter of other optimizations is obtained using identical method.
During experiment, because technical parameter constant interval is bigger, and technical parameter matching and final products performance it
Between there is no obvious related law.We have carried out smaller division by the constant interval to technical parameter, in the prior art typically
The temperature variable of use is 700 DEG C, 750 DEG C, 800 DEG C, and variable partitions are every 20 DEG C of sections by we, carries out smaller area
Interior variable experimental study.
Studied by lot of experiments, we have made qualitative research analysis to the relation between residual stress and magnetic property
As a result, by its magnetic property of the pawl pole part testing of different conditions, it was demonstrated that pawl pole part residual stress is bigger, product
Magnetic conductivity and saturation induction density are higher, and coercivity is lower.
Through overtesting, 1180-1150 DEG C of heating-up temperature, 800 ± 10 DEG C of temperature after hot forging after forging, isothermal normalizing temperature 450-
600 DEG C, the shape of pawl pole and performance can reach a perfect balance in 300-500 DEG C of temperature range of stress relief annealing temperature,
Test data show using this technology invention eliminate part residual stress after, the saturation induction density of the service demand of pawl pole
(B5000) average value improves 0.2mt, more than original technology saturation induction density (B5000) average value (1.6mt or so)
10%, serve unexpected technique effect.
A kind of control shape control manufacturing process of hybrid excitation generator pawl pole, comprises the following steps：
1) blanking, wherein blanking use accurate shearing machine or sawing machine blanking, and raw material are the mild steel that phosphorus content is less than 0.1%
And ultra-low-carbon steel；
2) heat, using sensing heating stove heat, wherein, 1100-1300 DEG C of heating-up temperature；
3) hot forging；
4) it is heat-treated, heat treatment uses connection net-bag type heat-treatment production line or incubator after hot forging production line to be forged
Excess heat isothermal normalizing afterwards, 800 ± 10 DEG C of temperature after hot forging, 450-600 DEG C of isothermal normalizing temperature, normalizing soaking time 5-8h；
5) descale is handled；
6) cold-finishing, punching machine is used to carry out cold-finishing process for face of the pawl pole without machining, such as pawl pole
Magnet embedding groove 2-1, notch 2-11, pawl pole side 2-2 and pawl pole periphery 4 etc.；
7) machining, numerically controlled lathe is used to carry out machining process for pawl pole key fitting surface, such as the mesopore of pawl pole
3rd, yoke periphery 7 etc.；
8) destressing is handled, and destressing processing is carried out to pawl pole, wherein, annealing temperature is 300-500 DEG C, and annealing time is
2-4h,
Wherein, heating, hot forging and heat treatment step form tinuous production by bus marco and realize automated production, heat
Forging uses multistation high-speed precision hot forging equipment, and by pier base, preform, shaping and trimming process are integrated eventually.
Preferably, ball blast can be selected in descale processing, can also use other means sand throwings or ultrasonication etc..
Preferably, destressing processing can use vacuum stress relief annealing, can also use other means resonance processing etc..
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (8)
- A kind of 1. control shape control manufacturing process of hybrid excitation generator pawl pole, it is characterised in that：Comprise the following steps：1) under Material；2) heat；3) hot forging；4) it is heat-treated；5) descale is handled；6) cold-finishing；7) machining；8) destressing is handled,Wherein, heating, hot forging and heat treatment step form tinuous production by bus marco and realize automated production, and hot forging is adopted With multistation high-speed precision hot forging equipment, by pier base, preform, shaping and trimming process are integrated eventually.
- A kind of 2. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 1, it is characterised in that： Heat treatment after hot forging production line using connecting excess heat isothermal normalizing after net-bag type heat-treatment production line or incubator are forged.
- A kind of 3. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 2, it is characterised in that： 800 ± 10 DEG C of temperature after hot forging, 450-600 DEG C of isothermal normalizing temperature, normalizing soaking time 5-8h.
- A kind of 4. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 1, it is characterised in that： Punching machine is used to carry out cold-finishing process for face of the pawl pole without machining.
- A kind of 5. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 1, it is characterised in that： Numerically controlled lathe is used to carry out machining process for pawl pole key fitting surface.
- A kind of 6. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 1, it is characterised in that： Destressing processing is carried out to pawl pole, wherein, annealing temperature is 300-500 DEG C, annealing time 2-4h.
- A kind of 7. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 1, it is characterised in that： Blanking uses accurate shearing machine or sawing machine blanking, and raw material are the mild steel and ultra-low-carbon steel that phosphorus content is less than 0.1%.
- A kind of 8. control shape control manufacturing process of hybrid excitation generator pawl pole as claimed in claim 1, it is characterised in that： Heating uses sensing heating stove heat, wherein, 1100-1300 DEG C of heating-up temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785495.2A CN107790964A (en) | 2016-08-30 | 2016-08-30 | A kind of control shape control manufacturing process of hybrid excitation generator pawl pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610785495.2A CN107790964A (en) | 2016-08-30 | 2016-08-30 | A kind of control shape control manufacturing process of hybrid excitation generator pawl pole |
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| CN107790964A true CN107790964A (en) | 2018-03-13 |
Family
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145721A (en) * | 2006-10-19 | 2008-03-19 | 余国华 | Magnetic lag synchronous motor and its making technology |
| CN101327561A (en) * | 2008-07-03 | 2008-12-24 | 庄龙兴 | Hot edge-cutting manufacture technology for automobile generator finish forging claw pole |
| CN101386120A (en) * | 2008-10-23 | 2009-03-18 | 海盐猛凌汽车配件有限公司 | Forming method of automobile generator claw pole |
| CN104032239A (en) * | 2014-06-27 | 2014-09-10 | 南京赛达机械制造有限公司 | Corrosion-resistant turbine blade and production process thereof |
| CN104493442A (en) * | 2014-12-04 | 2015-04-08 | 汪超 | Automobile generator claw pole and manufacturing process thereof |
| CN104646955A (en) * | 2014-12-18 | 2015-05-27 | 江苏皓宇合金机械有限公司 | Method for preparing 20CrNi4 piercing plug |
-
2016
- 2016-08-30 CN CN201610785495.2A patent/CN107790964A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145721A (en) * | 2006-10-19 | 2008-03-19 | 余国华 | Magnetic lag synchronous motor and its making technology |
| CN101327561A (en) * | 2008-07-03 | 2008-12-24 | 庄龙兴 | Hot edge-cutting manufacture technology for automobile generator finish forging claw pole |
| CN101386120A (en) * | 2008-10-23 | 2009-03-18 | 海盐猛凌汽车配件有限公司 | Forming method of automobile generator claw pole |
| CN104032239A (en) * | 2014-06-27 | 2014-09-10 | 南京赛达机械制造有限公司 | Corrosion-resistant turbine blade and production process thereof |
| CN104493442A (en) * | 2014-12-04 | 2015-04-08 | 汪超 | Automobile generator claw pole and manufacturing process thereof |
| CN104646955A (en) * | 2014-12-18 | 2015-05-27 | 江苏皓宇合金机械有限公司 | Method for preparing 20CrNi4 piercing plug |
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