CN108179258A - A kind of gear teeth face shot peening strengthening finely finishing method - Google Patents
A kind of gear teeth face shot peening strengthening finely finishing method Download PDFInfo
- Publication number
- CN108179258A CN108179258A CN201711206087.8A CN201711206087A CN108179258A CN 108179258 A CN108179258 A CN 108179258A CN 201711206087 A CN201711206087 A CN 201711206087A CN 108179258 A CN108179258 A CN 108179258A
- Authority
- CN
- China
- Prior art keywords
- gear teeth
- teeth face
- shot peening
- carried out
- tooth
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of gear teeth face shot peening strengthening finely finishing method of gear teeth face processing technology field, this method specifically includes following steps：S1：Gear teeth face is heated；S2：The bullet sprayed using compressed air shotblasting machine strengthens gear teeth face, and the flank of tooth is made to form residual compressive stress layer；S3：Impewdance matching processing is carried out to the residual compressive stress layer that the flank of tooth is formed, secondary bead is then carried out, forms high surface residual stress；S4：After shot-peening, electroplating processes are carried out to the residual compressive stress layer surface of gear teeth face, baking dehydrogenation then is carried out, to improve flute profile precision, the present invention can improve tooth bending fatigue resistance, improve flank of tooth fatigue resistance, eliminate the tool marks of Continuous maching simultaneously, improve the lubricating condition of the flank of tooth, at the same by electroplating processes after, grinding processing is needed not move through after shot-peening, the effect of shot peening strengthening will not be weakened while flute profile precision is improved.
Description
Technical field
The present invention relates to gear teeth face processing technology field, specially a kind of gear teeth face shot peening strengthening finely finishing method.
Background technology
The fatigue of gear and abrasion are the Main Patterns that gear part fails, and in order to improve the strength of gear teeth, extend tooth
The service life is taken turns, one layer of residual compressive stress layer is usually formed in gear surface using stress peening process.The main function of shot peening strengthening
It is the bullet impact piece surface by high-speed motion, brings it about plastic deformation, so as to generates residual compressive stress layer and tissue
The advantageous variations such as refinement, but simultaneously because gear surface deformation also increases the roughness of the flank of tooth, then can significantly reduce gear
Wearability, fatigue resistance and the contact stiffness of the flank of tooth, so as to influence the stability of gear and shorten gear life.、
In order to reduce the roughness of gear teeth face, it is in shot-peening to improve the flank of tooth and flute profile precision, existing treatment process
Roll flute processing is carried out after reinforcing to gear, but abrasion can remove the flank of tooth and pass through the residual compressive stress layer that shot peening strengthening is formed, and be
Meet the requirement of flute profile precision, wear extent can only be increased in process of production, sacrifice the effect of shot peening strengthening.For this purpose, I
Propose a kind of gear teeth face shot peening strengthening finely finishing method and come into operation, to solve the above problems.
Invention content
The purpose of the present invention is to provide a kind of gear teeth face shot peening strengthening finely finishing method, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical solution：A kind of gear teeth face shot peening strengthening finely finishing method, should
Method specifically includes following steps：
S1：The impurity of gear teeth face is purged, and is heated, changes the plastic construction of gear teeth face,
Middle heating temperature is 100~150 DEG C；
S2：The bullet sprayed using compressed air shotblasting machine strengthens gear teeth face, and shot peening strength is controlled in 0.4~0.8A, is made
The flank of tooth forms residual compressive stress layer；
S3：Impewdance matching processing is carried out to the residual compressive stress layer that the flank of tooth is formed, secondary bead is then carried out, is formed
High surface residual stress；
S4：After shot-peening, electroplating processes are carried out to the residual compressive stress layer surface of gear teeth face, then carry out baking de-
Hydrogen, to improve flute profile precision.
Preferably, in the step S2, compressed air shotblasting machine is driven using air pressure, i.e., compressed air during compressed air shotblasting machine spray gun by causing
Bullet is sucked simultaneously high speed jetting nozzle by negative pressure, and gear teeth face is formed and is impacted.
Preferably, in the step S2, bullet selects the firm bullet of 1~1.5mm of diameter, and hardness HRC is 45~55
Preferably, in the step S2, the nozzle angle and gear teeth face of compressed air shotblasting machine are perpendicular.
Preferably, in the step S3, a diameter of 0.05~1mm of bullet of secondary bead, shot peening strength for 0.3~
0.5A。
Preferably, in the step S3, during secondary bead, shot-peening should in the residual pressure that gear teeth face is formed
It is carried out in the coverage area of power layer.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention can improve tooth bending fatigue resistance, carry
High flank of tooth fatigue resistance, while the tool marks of Continuous maching are eliminated, improve the lubricating condition of the flank of tooth, while pass through electroplating processes
Afterwards, grinding processing is needed not move through after shot-peening, the effect of shot peening strengthening will not be weakened while flute profile precision is improved.
Description of the drawings
Fig. 1 is work flow diagram of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution：A kind of gear teeth face shot peening strengthening finely finishing method, this method
Specifically include following steps：
S1：The impurity of gear teeth face is purged, and is heated, changes the plastic construction of gear teeth face,
Middle heating temperature is 100~150 DEG C；
S2：The bullet sprayed using compressed air shotblasting machine strengthens gear teeth face, and shot peening strength is controlled in 0.4~0.8A, is made
The flank of tooth forms residual compressive stress layer, and compressed air shotblasting machine is driven using air pressure, i.e., compressed air is by causing negative pressure will during compressed air shotblasting machine spray gun
Bullet sucking and high speed jetting nozzle, form gear teeth face and impact, and bullet selects the firm bullet of 1~1.5mm of diameter, hardness
HRC is 45~55, and the nozzle angle and gear teeth face of compressed air shotblasting machine are perpendicular；
S3：Impewdance matching processing is carried out to the residual compressive stress layer that the flank of tooth is formed, secondary bead is then carried out, is formed
High surface residual stress, a diameter of 0.05~1mm of bullet of secondary bead, shot peening strength is 0.3~0.5A, in secondary spray
In ball processing procedure, carried out in the coverage area of residual compressive stress layer that shot-peening is formed in gear teeth face；
S4：After shot-peening, electroplating processes are carried out to the residual compressive stress layer surface of gear teeth face, then carry out baking de-
Hydrogen, to improve flute profile precision.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of gear teeth face shot peening strengthening finely finishing method, it is characterised in that：This method specifically includes following steps：
S1：The impurity of gear teeth face is purged, and is heated, changes the plastic construction of gear teeth face, wherein adding
Hot temperature is 100~150 DEG C；
S2：The bullet sprayed using compressed air shotblasting machine strengthens gear teeth face, and shot peening strength is controlled in 0.4~0.8A, makes the flank of tooth
Form residual compressive stress layer；
S3：Impewdance matching processing is carried out to the residual compressive stress layer that the flank of tooth is formed, secondary bead is then carried out, forms high table
Face residual stress；
S4：After shot-peenings, electroplating processes are carried out to the residual compressive stress layer surface of gear teeth face, then carry out baking dehydrogenation,
To improve flute profile precision.
2. a kind of gear teeth face shot peening strengthening finely finishing method according to claim 1, it is characterised in that：The step S2
In, compressed air shotblasting machine is driven using air pressure, i.e., compressed air is by causing negative pressure by bullet sucking and spraying at a high speed during compressed air shotblasting machine spray gun
Nozzle forms gear teeth face and impacts.
3. a kind of gear teeth face shot peening strengthening finely finishing method according to claim 1, it is characterised in that：The step S2
In, bullet selects the firm bullet of 1~1.5mm of diameter, and hardness HRC is 45~55.
4. a kind of gear teeth face shot peening strengthening finely finishing method according to claim 1, it is characterised in that：The step S2
In, the nozzle angle and gear teeth face of compressed air shotblasting machine are perpendicular.
5. a kind of gear teeth face shot peening strengthening finely finishing method according to claim 1, it is characterised in that：The step S3
In, a diameter of 0.05~1mm of bullet of secondary bead, shot peening strength is 0.3~0.5A.
6. a kind of gear teeth face shot peening strengthening finely finishing method according to claim 1, it is characterised in that：The step S3
In, during secondary bead, carried out in the coverage area of residual compressive stress layer that shot-peening is formed in gear teeth face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206087.8A CN108179258A (en) | 2017-11-27 | 2017-11-27 | A kind of gear teeth face shot peening strengthening finely finishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206087.8A CN108179258A (en) | 2017-11-27 | 2017-11-27 | A kind of gear teeth face shot peening strengthening finely finishing method |
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| Publication Number | Publication Date |
|---|---|
| CN108179258A true CN108179258A (en) | 2018-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711206087.8A Pending CN108179258A (en) | 2017-11-27 | 2017-11-27 | A kind of gear teeth face shot peening strengthening finely finishing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531283A (en) * | 2018-11-19 | 2019-03-29 | 成都市联余精密机械有限公司 | A kind of shot-blast process convenient for high speed machine PET product break away from moulds whose surfaces |
| CN109694943A (en) * | 2019-02-12 | 2019-04-30 | 上海理工大学 | A kind of composite surface treatment method strengthened for gear surface |
| CN112481464A (en) * | 2020-11-13 | 2021-03-12 | 中国人民解放军陆军装甲兵学院 | Anti-fatigue strengthening method for gear tooth root |
| CN113322468A (en) * | 2021-05-25 | 2021-08-31 | 合肥学院 | Surface strengthening method for improving wear resistance of titanium-zirconium-based alloy |
| CN115070623A (en) * | 2022-07-18 | 2022-09-20 | 上海交通大学 | High-entropy alloy shot blasting treatment process |
| CN116571819A (en) * | 2023-07-12 | 2023-08-11 | 陕西法士特齿轮有限责任公司 | Processing method for improving fatigue strength and gluing bearing capacity of gear |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03253582A (en) * | 1990-03-03 | 1991-11-12 | Toyota Motor Corp | Method for masking gear before chemical polishing |
| CN101020946A (en) * | 2007-02-14 | 2007-08-22 | 大连交通大学 | Composite shot blasting reinforcement process to raise fatigue strength of titanium metal |
| CN106893843A (en) * | 2017-03-23 | 2017-06-27 | 无锡丰力弹簧有限公司 | The production technology of extension spring |
-
2017
- 2017-11-27 CN CN201711206087.8A patent/CN108179258A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03253582A (en) * | 1990-03-03 | 1991-11-12 | Toyota Motor Corp | Method for masking gear before chemical polishing |
| CN101020946A (en) * | 2007-02-14 | 2007-08-22 | 大连交通大学 | Composite shot blasting reinforcement process to raise fatigue strength of titanium metal |
| CN106893843A (en) * | 2017-03-23 | 2017-06-27 | 无锡丰力弹簧有限公司 | The production technology of extension spring |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531283A (en) * | 2018-11-19 | 2019-03-29 | 成都市联余精密机械有限公司 | A kind of shot-blast process convenient for high speed machine PET product break away from moulds whose surfaces |
| CN109531283B (en) * | 2018-11-19 | 2020-01-24 | 成都市联余精密机械有限公司 | Shot blasting process facilitating separation of PET (polyethylene terephthalate) product of high-speed machine from surface of mold core |
| CN109694943A (en) * | 2019-02-12 | 2019-04-30 | 上海理工大学 | A kind of composite surface treatment method strengthened for gear surface |
| CN112481464A (en) * | 2020-11-13 | 2021-03-12 | 中国人民解放军陆军装甲兵学院 | Anti-fatigue strengthening method for gear tooth root |
| CN113322468A (en) * | 2021-05-25 | 2021-08-31 | 合肥学院 | Surface strengthening method for improving wear resistance of titanium-zirconium-based alloy |
| CN115070623A (en) * | 2022-07-18 | 2022-09-20 | 上海交通大学 | High-entropy alloy shot blasting treatment process |
| CN116571819A (en) * | 2023-07-12 | 2023-08-11 | 陕西法士特齿轮有限责任公司 | Processing method for improving fatigue strength and gluing bearing capacity of gear |
| CN116571819B (en) * | 2023-07-12 | 2023-12-08 | 陕西法士特齿轮有限责任公司 | Processing method for improving fatigue strength and gluing bearing capacity of gear |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180619 |
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| RJ01 | Rejection of invention patent application after publication |