CN104589005A - Molding process for straight bevel gear - Google Patents
Molding process for straight bevel gear Download PDFInfo
- Publication number
- CN104589005A CN104589005A CN201510020314.2A CN201510020314A CN104589005A CN 104589005 A CN104589005 A CN 104589005A CN 201510020314 A CN201510020314 A CN 201510020314A CN 104589005 A CN104589005 A CN 104589005A
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- tooth
- forging
- rough forge
- mould
- finishing
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- 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
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to a processing technique for a straight bevel gear and aims to provide a molding process for a straight bevel gear in order to improve the forging processing precision and processing efficiency of the bevel gear. The molding process comprises the following steps: (1) tooth die modeling includes rough forging tooth die modeling and finishing tooth die modeling; the pitch circle chordal tooth thickness of the rough forging tooth die is slightly smaller than that of the finishing tooth die, and the tooth whole depth of the rough forging tooth die is larger than the tooth whole depth of the finishing tooth die; the single tooth profile volume of a 0.992 rough forging tooth equals to the product of the single tooth profile volume of the finishing tooth die and 1.008; (2) the warm forging plastic forming is carried out; (3) hot forging edge cutting is carried out; (4) rough forged pieces are subjected to normalization, surface grit blasting and phosphorous saponification; (5) cold accurate alignment plastic forming is carried out. The processing technique for the straight bevel gear has the advantages that the quantity of raw materials is saved, the technological requirements on blank processing are lowered; the production cycle is reduced, and the cost is reduced; the product quality is stable, the product precision is high, the mechanical performance is good, the tonnage of required equipment is small, and the cost is low.
Description
Technical field
The present invention relates to a kind of processing technology of straight bevel gear.
Background technology
Straight bevel gear is mainly used in automobile axle gear-box, diesel hydraulic locomotive, fan shaft, axle gear box, shaping machine workbench and feed mechanism.It is complex-shaped, material, dimensional accuracy, surface quality and mechanical property requirements are higher.In order to improve stock utilization, mechanical performance and production efficiency, the domestic forging mode that substantially all adopts produces gear forgings, then machined gear part.
Current domestic processing mode is mainly divided into cold forging to make and warm and hot forging two kinds.It is blank is first carried out annealing softening process rear car to ream surface scale that cold forging makes mode, then blank is carried out phospholeum surface treatment, and use hydraulic press to utilize forging die that blank forging is become gear forgings, its profile of tooth is consistent with part; Product parts is become again by machined endoporus, end face etc.This method advantage is that gear forgings surface quality is high, and profile accuracy is good, and shortcoming is blank long processing period in early stage, and surface treatment requires high, and processing cost is large.Forging forming force is large needs preformed, is not suitable for large gear forging.
And warm and hot forging mode is put in heating furnace by blank to be heated to 800-900 DEG C, under friction press or fly press, utilize forging die that blank forging is become gear forgings, profile of tooth and part are consistent, and all the other sizes are machined to finished product according to part.The advantage of this method is, blank does not need special process, and needed for forging, forming force is little, can forge large gear.Shortcoming is that oxide skin is serious, and surface quality is poor, and low being not suitable for of the accuracy of gear forges the high gear of required precision.
Summary of the invention
The object of this invention is to provide a kind of moulding process of straight bevel gear, to improve forging machining accuracy and the working (machining) efficiency of bevel gear.
The technical solution used in the present invention is: a kind of moulding process of straight bevel gear, comprises the steps:
1). tooth mould modeling: comprise rough forge tooth mould and the modeling of finishing tooth mould, the reference circle chordal tooth thickness of described rough forge tooth mould is slightly less than finishing tooth mould, the whole depth of rough forge tooth mould is greater than finishing tooth mould whole depth; And meet: single profile of tooth volume × 1.008 of 0.992 rough forge tooth mould single profile of tooth volume=finishing tooth mould;
2). warm forging plastic forming: by solid cylinder blank heating to forging temperature, utilizes rough forge tooth mould and rough forge back cone mould and top to rush, forges gear rough forge forging;
3). forge hot trimming: utilize edger, gear rough forge forging flash is excised;
4). the normalizing of rough forge part, surperficial blast and phospholeum process;
5). cold smart school plastic forming: utilize finishing tooth mould, finishing back cone mould and top punching, extruding rough forge part, finishing profile of tooth, final formative gear fine forge piece.
Preferably, described warm forging plastic forming comprises: a, saw material, blanking; B, base: the grinding of blank epidermis, chamfering; C, heating: blank is allowed into intermediate-frequency heating furnace and be heated to 820-850 DEG C; D, hot extrusion: the blank heated is put into mould, rough forge tooth mould, rough forge back cone mould and top punching extrude blank, formative gear rough forge forging.
Preferably, described rough forge part normalizing, surperficial blast and phospholeum process comprise:
Normalizing: forging is delivered to normalizing furnace, is heated to 900-910 DEG C, is incubated 180 minutes; Forging is pushed to the top cold house being positioned at normalizing furnace rear portion after insulation terminates, under nitrogen protection, blower fan quenching 120 minutes, air cooling of then coming out of the stove;
Surface blast: forging is carried out blast, employing be Caterpillar type shot blasting machine, diameter of the steel ball 0.2-0.3mm, until surperficial non-scale and impurity;
Phospholeum and surface treatment roughly technique are: surface degreasing-surface washing-surface acid-washing-surface washing-phosphatization-drying-saponification-drying-surface uniform is coated with one deck molybdenum bisuphide.
Product final molding result detection mode is:
Preliminary detection: detect forging physical dimension and whether meet designing requirement, whether the parts of tooth of range estimation gear forgings is bright, if light, then illustrate that parts of tooth corrects and put in place, and detect profile of tooth with or without other forging and stamping defects such as ftractureing, subside.
Final detection: gear is installed to and comprehensive detector detects tooth jumping, position of engagement impression, side clearance and end clearance, locating distance etc. whether meets design of gears requirement.
Beneficial effect of the present invention is: the technological requirement of the blank processing that saves material, reduces, the production cycle shortens, and cost reduces.Constant product quality, precision are high, good mechanical property.Equipment needed thereby tonnage is little, and cost is low.Technique of the present invention is applicable to the precision forging of the middle-size and small-size straight bevel gear of 0.5-1 kilogram.Gear yield rate keeps 100%, and excellent performance, and product is widely used in the offroad vehicle of current domestic main flow, SUV vehicle, and not H6 etc. is breathed out on such as Great Wall.And the advantage of the cold two kinds of forging modes of temperature is merged in the present invention, represents present manufacturing development trend.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention;
Fig. 2 is process flow diagram of the present invention.
Detailed description of the invention
Below by example, composition graphs 1 and Fig. 2 are described further the art of this patent scheme.To make those skilled in the art's clearly technical scheme of the present invention and design.
Embodiment one
The moulding process of straight bevel gear, raw material is 20CrMnTiH round steel, carries out in the steps below:
1). tooth mould modeling: comprise rough forge tooth mould and the modeling of finishing tooth mould, the reference circle chordal tooth thickness of described rough forge tooth mould is slightly less than finishing tooth mould, the whole depth of rough forge tooth mould is greater than finishing tooth mould whole depth; Single profile of tooth volume × 1.008 of 0.992 rough forge tooth mould single profile of tooth volume=finishing tooth mould.
The rough forge tooth mould profile of tooth that this step obtains is partially thin higher relative to finishing tooth mould profile of tooth.Its reason is: when smart school, and the tooth top of rough forge part first can contact the tooth top of finishing tooth mould profile of tooth, and in the process progressively extruded, rough forge part profile of tooth gradually pier is thick, and be full of finishing tooth mould profile of tooth, the similar pier of principle slightly extrudes.Because during follow-up normalizing process, rough forge part surface can produce oxide skin and cause profile of tooth volume to reduce, and what rule of thumb adopt is 8 ‰ scaling loss amounts.The monodentate volume of the rough forge part therefore after normalizing is 0.992 times of normalizing front volume.And in order to be that profile of tooth can be fully crowded with, rough forge monodentate profile of tooth volume should slightly larger than finish forge monodentate profile of tooth volume, and what we adopted is 1.008 times.Comprehensive two aspect factors, preferred computing formula is: single profile of tooth volume × 1.008 of 0.992 rough forge tooth die single profile of tooth volume=finish forge tooth die, in formula, finishing tooth mould is according to product requirement Modeling and Design, is known conditions, and calculative is exactly the single profile of tooth volume of rough forge tooth mould.
2). warm forging plastic forming: a, saw material: computerized numerical control sawing machine intercepts metal bar material and obtains solid cylinder material; B, base: adopt centerless grinder to be removed by solid cylinder surface casting skin, adopt double-side chamfering machine chamfering; C, heating: bar is put into intermediate-frequency heating furnace and is heated to 830-840 DEG C; D, hot extrusion: the blank heated is put into mould, with rough forge tooth mould, rough forge back cone mould and top punching to blank extruding, formative gear rough forge forging, employing equipment is 630T fly press;
3). forge hot trimming: utilize edger, excised by gear rough forge forging flash, employing equipment is 80T tilting punch press;
4). the normalizing of rough forge part, surperficial blast and phospholeum process;
Normalizing: forging is delivered to normalizing furnace, is heated to 900 DEG C, is incubated 180 minutes; Forging is pushed to the top cold house being positioned at normalizing furnace rear portion after insulation terminates, under nitrogen protection, blower fan quenching 120 minutes, air cooling of then coming out of the stove; Its order is eliminate the distortional stress produced in forging production process on the one hand, adjustment forging internal organizational structure, is reduce forging case hardness on the other hand;
Surface blast: forging is carried out blast, employing be Caterpillar type shot blasting machine, diameter of the steel ball 0.2-0.3mm, until surperficial non-scale and impurity, the time is about 10 minutes;
Phospholeum and surface treatment roughly technique are: surface degreasing-surface washing-surface acid-washing-surface washing-phosphatization-drying-saponification-drying-surface uniform is coated with one deck molybdenum bisuphide.
5). cold smart school plastic forming (also referred to as: cold extrusion plastic forming): use equipment 800T hydraulic press, utilize finishing tooth mould, finishing back cone mould and top punching to the cold extrusion of rough forge part, shaping forging parts of tooth, form straight bevel gear finish forge forging, afterwards machining is carried out to all the other spot sizes, final formation straight bevel gear finished product.
Processes gear yield rate of the present invention is adopted to reach 100%.
Embodiment two
The moulding process of straight bevel gear, raw material is 20CrMnTiH round steel, carries out in the steps below:
1). tooth mould modeling: comprise rough forge tooth mould and the modeling of finishing tooth mould, the reference circle chordal tooth thickness of described rough forge tooth mould is slightly less than finishing tooth mould, the whole depth of rough forge tooth mould is greater than finishing tooth mould whole depth; Single profile of tooth volume × 1.008 of 0.992 rough forge tooth mould single profile of tooth volume=finishing tooth mould;
2). warm forging plastic forming: a, saw material: computerized numerical control sawing machine intercepts metal bar material and obtains solid cylinder material; B, base: adopt centerless grinder to be removed by solid cylinder surface casting skin, adopt double-side chamfering machine chamfering; C, heating: bar is put into intermediate-frequency heating furnace and is heated to 820-830 DEG C; D, hot extrusion: the blank heated is put into mould, with rough forge tooth mould, rough forge back cone mould and top punching to blank extruding, formative gear rough forge forging, employing equipment is 630T fly press;
3). forge hot trimming: utilize edger, excised by gear rough forge forging flash, employing equipment is 80T tilting punch press;
4). the normalizing of rough forge part, surperficial blast and phospholeum process;
Normalizing: forging is delivered to normalizing furnace, is heated to 910 DEG C, is incubated 180 minutes; Forging is pushed to the top cold house being positioned at normalizing furnace rear portion after insulation terminates, under nitrogen protection, blower fan quenching 120 minutes, air cooling of then coming out of the stove;
Surface blast: forging is carried out blast, employing be Caterpillar type shot blasting machine, diameter of the steel ball 0.2-0.3mm, until surperficial non-scale and impurity, the time is about 12 minutes;
Phospholeum and surface treatment roughly technique are: surface degreasing-surface washing-surface acid-washing-surface washing-phosphatization-drying-saponification-drying-surface uniform is coated with one deck molybdenum bisuphide.
5). cold smart school plastic forming: use equipment 800T hydraulic press, utilize finishing tooth mould, finishing back cone mould and top punching to the cold extrusion of rough forge part, shaping forging parts of tooth, form straight bevel gear finish forge forging, afterwards machining is carried out to all the other spot sizes, final formation straight bevel gear finished product.
Processes gear yield rate of the present invention is adopted to reach 100%.
Claims (5)
1. a moulding process for straight bevel gear, comprises the steps:
1). tooth mould modeling: comprise rough forge tooth mould and the modeling of finishing tooth mould, the reference circle chordal tooth thickness of described rough forge tooth mould is slightly less than finishing tooth mould, the whole depth of rough forge tooth mould is greater than finishing tooth mould whole depth; And meet: single profile of tooth volume × 1.008 of 0.992 rough forge tooth mould single profile of tooth volume=finishing tooth mould;
2). warm forging plastic forming: by solid cylinder blank heating to forging temperature, utilizes rough forge tooth mould and rough forge back cone mould and top to rush, forges gear rough forge forging;
3). forge hot trimming: utilize edger, gear rough forge forging flash is excised;
4). the normalizing of rough forge part, surperficial blast and phospholeum process;
5). cold smart school plastic forming: utilize finishing tooth mould, finishing back cone mould and top punching, extruding rough forge part, finishing profile of tooth, final formative gear fine forge piece.
2. the moulding process of straight bevel gear according to claim 1, is characterized in that: described warm forging plastic forming comprises: a, saw material, blanking; B, base: the grinding of blank epidermis, chamfering; C, heating: blank is allowed into intermediate-frequency heating furnace and be heated to 820-850 DEG C; D, hot extrusion: the blank heated is put into mould, rough forge tooth mould, rough forge back cone mould and top punching extrude blank, formative gear rough forge forging.
3. the moulding process of straight bevel gear according to claim 1, is characterized in that: described rough forge part normalizing is: forging is delivered to normalizing furnace, is heated to 900-910 DEG C, is incubated 180 minutes; Forging is pushed to the top cold house being positioned at normalizing furnace rear portion after insulation terminates, under nitrogen protection, blower fan quenching 120 minutes, air cooling of then coming out of the stove.
4. the moulding process of straight bevel gear according to claim 1, is characterized in that: described surperficial blast: forging is carried out blast, employing be Caterpillar type shot blasting machine, diameter of the steel ball 0.2-0.3mm, until surperficial non-scale and impurity.
5. the moulding process of straight bevel gear according to claim 1, is characterized in that: described rough forge part phosphorus saponification treatment step comprises in order: surface degreasing, surface washing, surface acid-washing, surface washing, phosphatization, drying, saponification, drying, surface uniform are coated with one deck molybdenum bisuphide.
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| CN201510020314.2A CN104589005A (en) | 2015-01-15 | 2015-01-15 | Molding process for straight bevel gear |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710620A (en) * | 2016-03-30 | 2016-06-29 | 江苏威鹰机械有限公司 | Manufacturing process for conjunction-tooth gear of car transmission |
| CN106041421A (en) * | 2016-06-20 | 2016-10-26 | 安徽省瑞杰锻造有限责任公司 | Stabilizing treatment technology of forged piece machining |
| CN106086619A (en) * | 2016-06-03 | 2016-11-09 | 江苏保捷锻压有限公司 | A kind of automobile gearbox final gear liquid forging process |
| CN106399818A (en) * | 2016-06-03 | 2017-02-15 | 江苏保捷锻压有限公司 | Liquid-state die forging process for cam shaft gear for automobile engine |
| CN107160119A (en) * | 2017-07-12 | 2017-09-15 | 安徽凯密克企业管理咨询有限公司 | A kind of Cold Precision Forging of Bevel Gears Used in Car technique |
| CN107234406A (en) * | 2017-06-20 | 2017-10-10 | 江苏威鹰机械有限公司 | Automobile air conditioner compressor helicon gear manufacturing technology |
| CN110102589A (en) * | 2019-04-23 | 2019-08-09 | 河北科技大学 | The processing method and processing unit (plant) of gear |
| CN110216428A (en) * | 2019-07-03 | 2019-09-10 | 中山市大地金属有限公司 | A kind of smooth copper shoe production method of equipment for dyeing and finishing |
| CN110936163A (en) * | 2019-10-10 | 2020-03-31 | 沈阳炳恒科技有限公司 | Cogging method for machining gear by numerical control machine tool |
| CN111015134A (en) * | 2019-12-10 | 2020-04-17 | 江苏森威精锻有限公司 | End face tooth bell housing and manufacturing method thereof |
| CN111687356A (en) * | 2020-05-24 | 2020-09-22 | 江苏飞船股份有限公司 | Straight bevel gear warm forging precision forming die |
| CN112404914A (en) * | 2020-10-29 | 2021-02-26 | 四川众友机械有限责任公司 | Forging processing technology of parking gear |
| CN112809330A (en) * | 2021-02-22 | 2021-05-18 | 湖州五左精锻有限公司 | Production process of swing teeth |
| CN112935175A (en) * | 2021-02-01 | 2021-06-11 | 昆山众诚精密锻造有限公司 | High-precision gear forging process for automobile air conditioner compressor |
| CN113680953A (en) * | 2021-09-18 | 2021-11-23 | 一汽解放汽车有限公司 | Method for machining driving cylindrical gear |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405469A (en) * | 2001-09-13 | 2003-03-26 | 住友重机械工业株式会社 | Outer gear manufacture method |
| CN1544181A (en) * | 2003-11-13 | 2004-11-10 | 夏汉关 | Composite fabrication process for tooth blank of automobile gear shifting box combining tooth |
| CN101695806A (en) * | 2009-09-18 | 2010-04-21 | 江苏太平洋精密锻造有限公司 | Process for manufacturing backward gear of automobile gearbox |
| CN101773973A (en) * | 2010-03-15 | 2010-07-14 | 北京机电研究所 | Forming method of straight toothed spur gear compound forge with weight of 1-3 kilos, large diameter and large modulus |
| KR20100129873A (en) * | 2009-06-02 | 2010-12-10 | 주식회사 나래코퍼레이션 | Forging method for gear and device thereof |
| WO2011075436A1 (en) * | 2009-12-15 | 2011-06-23 | Gkn Sinter Metals, Llc | Composite powder metal constant velocity joint inner race and method of making same |
| CN102764838A (en) * | 2012-07-05 | 2012-11-07 | 无锡市钻通工程机械有限公司 | Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material |
| CN104131279A (en) * | 2014-07-18 | 2014-11-05 | 安徽铖友汽车零部件制造有限公司 | Phosphorus saponification treatment process for cold extrusion |
-
2015
- 2015-01-15 CN CN201510020314.2A patent/CN104589005A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405469A (en) * | 2001-09-13 | 2003-03-26 | 住友重机械工业株式会社 | Outer gear manufacture method |
| CN1544181A (en) * | 2003-11-13 | 2004-11-10 | 夏汉关 | Composite fabrication process for tooth blank of automobile gear shifting box combining tooth |
| KR20100129873A (en) * | 2009-06-02 | 2010-12-10 | 주식회사 나래코퍼레이션 | Forging method for gear and device thereof |
| CN101695806A (en) * | 2009-09-18 | 2010-04-21 | 江苏太平洋精密锻造有限公司 | Process for manufacturing backward gear of automobile gearbox |
| WO2011075436A1 (en) * | 2009-12-15 | 2011-06-23 | Gkn Sinter Metals, Llc | Composite powder metal constant velocity joint inner race and method of making same |
| CN101773973A (en) * | 2010-03-15 | 2010-07-14 | 北京机电研究所 | Forming method of straight toothed spur gear compound forge with weight of 1-3 kilos, large diameter and large modulus |
| CN102764838A (en) * | 2012-07-05 | 2012-11-07 | 无锡市钻通工程机械有限公司 | Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material |
| CN104131279A (en) * | 2014-07-18 | 2014-11-05 | 安徽铖友汽车零部件制造有限公司 | Phosphorus saponification treatment process for cold extrusion |
Non-Patent Citations (2)
| Title |
|---|
| 王乐安: "《模锻工艺及其设备使用特性》", 31 January 2011 * |
| 王以华等: "《锻模设计技术及实例》", 31 January 2009 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710620A (en) * | 2016-03-30 | 2016-06-29 | 江苏威鹰机械有限公司 | Manufacturing process for conjunction-tooth gear of car transmission |
| CN106086619A (en) * | 2016-06-03 | 2016-11-09 | 江苏保捷锻压有限公司 | A kind of automobile gearbox final gear liquid forging process |
| CN106399818A (en) * | 2016-06-03 | 2017-02-15 | 江苏保捷锻压有限公司 | Liquid-state die forging process for cam shaft gear for automobile engine |
| CN106041421A (en) * | 2016-06-20 | 2016-10-26 | 安徽省瑞杰锻造有限责任公司 | Stabilizing treatment technology of forged piece machining |
| CN106041421B (en) * | 2016-06-20 | 2018-05-08 | 安徽省瑞杰锻造有限责任公司 | A kind of stabilizing treatment technique of forging process |
| CN107234406A (en) * | 2017-06-20 | 2017-10-10 | 江苏威鹰机械有限公司 | Automobile air conditioner compressor helicon gear manufacturing technology |
| CN107160119A (en) * | 2017-07-12 | 2017-09-15 | 安徽凯密克企业管理咨询有限公司 | A kind of Cold Precision Forging of Bevel Gears Used in Car technique |
| CN110102589B (en) * | 2019-04-23 | 2020-12-01 | 河北科技大学 | Method and apparatus for machining gear |
| CN110102589A (en) * | 2019-04-23 | 2019-08-09 | 河北科技大学 | The processing method and processing unit (plant) of gear |
| CN110216428A (en) * | 2019-07-03 | 2019-09-10 | 中山市大地金属有限公司 | A kind of smooth copper shoe production method of equipment for dyeing and finishing |
| CN110936163A (en) * | 2019-10-10 | 2020-03-31 | 沈阳炳恒科技有限公司 | Cogging method for machining gear by numerical control machine tool |
| CN111015134A (en) * | 2019-12-10 | 2020-04-17 | 江苏森威精锻有限公司 | End face tooth bell housing and manufacturing method thereof |
| CN111687356A (en) * | 2020-05-24 | 2020-09-22 | 江苏飞船股份有限公司 | Straight bevel gear warm forging precision forming die |
| CN111687356B (en) * | 2020-05-24 | 2024-05-24 | 江苏飞船股份有限公司 | Warm forging precision forming die for straight bevel gear |
| CN112404914A (en) * | 2020-10-29 | 2021-02-26 | 四川众友机械有限责任公司 | Forging processing technology of parking gear |
| CN112935175A (en) * | 2021-02-01 | 2021-06-11 | 昆山众诚精密锻造有限公司 | High-precision gear forging process for automobile air conditioner compressor |
| CN112809330A (en) * | 2021-02-22 | 2021-05-18 | 湖州五左精锻有限公司 | Production process of swing teeth |
| CN113680953A (en) * | 2021-09-18 | 2021-11-23 | 一汽解放汽车有限公司 | Method for machining driving cylindrical gear |
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