CN107486522A - Super extra high voltage line instrument laser formation method - Google Patents
Super extra high voltage line instrument laser formation method Download PDFInfo
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- CN107486522A CN107486522A CN201710804126.8A CN201710804126A CN107486522A CN 107486522 A CN107486522 A CN 107486522A CN 201710804126 A CN201710804126 A CN 201710804126A CN 107486522 A CN107486522 A CN 107486522A
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- Prior art keywords
- laser
- titanium alloy
- high voltage
- present
- voltage line
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Classifications
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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
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to super extra high voltage line instrument laser formation method.The forming method comprises the following steps：Cleaning material surface；Warm operation platform；Place titanium alloy；Laser irradiates；Forging and stamping wheel rolls；Shaping test piece；Test specimen cools down.The present invention melts particulate metal material filaments using laser, and microbedding, which melts, to be covered, and performance is better than quenching technical, and easily operated, cost is very low, and successively quenching technical improves mechanical performance, crystalline particle refinement；The present invention is passed through protective gas, and protection structure is not oxidized, and with trace element can be incorporated in shaping；The present invention solves common laser and melts the defects of coating technique mechanical performance can not be better than forge piece, and metal carries out flattening-out forging and stamping in cooling procedure is melted；The present invention effectively prevent stress deformation and problem of Cracking caused by heat is concentrated, controllable degree is high, suitable for promotion and application for the different scan method of each regional choice.
Description
Technical field
The invention belongs to Parts manufacturing technology field, more particularly to a kind of super extra high voltage line instrument laser formation method.
Background technology
After nineteen sixty, First laser was born in the world, laser is widely used in all trades and professions therewith, particularly exists
Industrial circle obtains tremendous expansion.Laser technology is to be related to a synthesis of the multi-door subject such as light, mechanical, electrical, material and detection
Technology, using the interaction of laser beam and material, material can be cut, be welded, is surface-treated, being punched and it is micro- plus
Work.
Titanium is a kind of important structural metal to grow up the 1950s, and titanium alloy intensity is high, corrosion resistance is good, resistance to
Hot height.50~sixties of 20th century, the structure titanium of the high-temperature titanium alloy and body that mainly develop aero-engine close
Gold.A collection of corrosion resistant Ti alloy is developed the seventies, since the eighties, corrosion resistant Ti alloy and high-strength titanium alloy are further sent out
Exhibition.Titanium alloy is mainly used in making aircraft engine compressor part, is secondly the structural member of rocket, guided missile and high-speed aircraft.
At present, laser fast forming has manufacturing process flexible degree high, product as a kind of new forming technique
The manufacture of mechanical property and excellent, the achievable component continuously varying gradient functional material of chemical property, the size of product
The features such as very little is influenceed on difficulty of processing with complexity.Titanium alloy uses powder metallurgy formation mostly, and this forming technology needs
Want moulds of industrial equipment, the complex technical process of costliness, it is difficult to the baroque part of forming three-dimensional.Therefore, the elder generation of titanium alloy is developed
Enter forming technique turns into one of study hotspot.Therefore, Laser Rapid Prototyping Technique has wide answer in titanium alloy shaping
Use prospect
During livewire work, the use demand of a large amount of Work tool special type Work tools be present.To Work tool requirement, quality
Gently.Structure is higher than normal steel structure part, and more using aluminium alloy, titanium alloy manufactures.Originally technique is using casting, forging processing.
Titanium alloy is because having the characteristics that specific strength is high, corrosion resistance is good, heat resistance is high, be widely used in aviation easy welding, making prosthese
The biomaterials such as device.However, because titanium alloy has cold extraction, cut that fusing point is low, and difficulty of processing is big.In addition, titanium or titanium alloy
Case hardness it is relatively low, chemism is larger.
Titanium alloy structure part laser fast shaping process is extremely complex, is directed to laser and titanium alloy powder is mutually reciprocal
Should, liquid-phase sintering, heat transfer, condensation etc., the long term periodicities for the high energy laser beam that part undergoes during laser formation are violent
Heating and cooling.The bottleneck problems such as nodularization, crackle, deformation, warpage, delamination also be present urgently during titanium alloy Prototyping Metal Parts
Treat the solution of domestic and foreign scholars.Therefore for drawbacks described above present in currently available technology, it is necessary to be studied in fact, to provide
A kind of scheme, solves defect present in prior art.
The content of the invention
In order to solve the problems, such as that prior art is present, the invention provides super extra high voltage line instrument laser formation method,
Economic benefit is improved, improves operating environment, protects operating personnel's health, can farthest realize that depositing dust acts on.
To achieve these goals, the present invention is to realize by the following technical solutions：Super extra high voltage line instrument swashs
Seterolithography method, the forming method comprise the following steps：
Step 1：Cleaning material surface；Titanium alloy is first cleaned by ultrasonic 4-8 minutes, gone again with distilled water flushing after taking-up
Except the absolute ethyl alcohol on surface, it is standby to be placed on air drying；
Step 2：Warm operation platform；The work top of circuit Work tool matrix is adjusted to suitable height, warm operation
Platform is to 1000~1600 DEG C；
Step 3：Place titanium alloy；According to the actual demand of instrument, placement titanium alloy is answered on circuit Work tool matrix
Close fibril；
Step 4：Laser irradiates；The surface of the single beam laser beam irradiation titanium alloy material exported using laser, laser beam
Angular illumination on titanium alloy material with surface in 30-60 degree；
Step 5：Forging and stamping wheel rolls；When laser irradiates, ground simultaneously using track of the forging and stamping wheel along laser beam irradiation
Pressure；
Step 6：Shaping test piece；The constantly height of the work top of adjustment circuit Work tool matrix, repeat step four and step
Rapid five, until instrument is rolled being molded；
Step 7：Test specimen cools down；The titanium alloy component of shaping is taken out, carries out cooling treatment immediately.
As a kind of preferred embodiment of the present invention, laser frequency is 10 hertz when the laser irradiates, laser and material
The action time for expecting surface is 100 pulses, and the sweep speed for designing laser is 100-300mm/s, sintering temperature 1400-
2100℃。
As a kind of preferred embodiment of the present invention, the laser irradiation is led to before starting with the 4-6 per minute flows risen
Enter protective gas；Described protective gas both can be nitrogen, hydrogen or argon gas single component or wherein it is any both
Mixing.
As a kind of preferred embodiment of the present invention, the test specimen cooling carries out cooling treatment stage by stage：First stage,
After specimen molding, 100-120 DEG C is cooled down per hour, until being cooled to 800 DEG C or so, is kept for 30-50 minutes；Second stage,
120-160 DEG C is cooled down per hour, until being cooled to 500 DEG C or so, is kept for 50-70 minutes；Phase III, 140- is cooled down per hour
180 DEG C, until being cooled to normal temperature.
As a kind of preferred embodiment of the present invention, when the laser irradiates, laser beam uses on titanium alloy material
Travers shape, vertical stripe-shaped or tessellate irradiation.
As a kind of preferred embodiment of the present invention, the cleaning material surface is that titanium alloy is positioned over into absolute ethyl alcohol
In be cleaned by ultrasonic.
Beneficial effects of the present invention are：
1st, the present invention melts particulate metal material filaments using laser, and microbedding, which melts, to be covered, and performance is better than quenching technical, is easy to grasp
Make, cost is very low.Successively quenching technical improves mechanical performance, crystalline particle refinement.
2nd, the present invention is passed through protective gas, and protection structure is not oxidized, and with trace element can be incorporated in shaping.Adopt
The titanium alloy component prepared with this method has more excellent wearability and corrosion resistance, improves mechanical performance, realizes trace element
Rapid fusion.
3rd, present invention solution common laser melts the defects of coating technique mechanical performance can not be better than forge piece.Metal is cold in thawing
But flattening-out forging and stamping are carried out during.It is disposable to solve to melt to cover forging and stamping, micro-molding technology.
4th, the present invention effectively prevent the stress caused by heat is concentrated and become for the different scan method of each regional choice
Shape and problem of Cracking, the surface accuracy and quality of titanium alloy laser fast shaping structural member being significantly improved, technical process is simple,
Controllable degree is high, suitable for promotion and application.
5th, the present invention can solve the problem that the quick manufacture of the current complicated part of titanium alloy micro shaping, improve supertension line
The special high electricapparatus performance requirement of Work tool, and method applicability is strong, greatly improves production efficiency, reduces production cost.
Brief description of the drawings
Fig. 1 is super extra high voltage line instrument laser formation method flow chart；
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
Referring to Fig. 1, the present invention provides a kind of technical scheme：Super extra high voltage line instrument laser formation method, it is described into
Type method comprises the following steps：
Step 1：Cleaning material surface；Titanium alloy is first cleaned by ultrasonic 4-8 minutes, gone again with distilled water flushing after taking-up
Except the absolute ethyl alcohol on surface, it is standby to be placed on air drying；
Step 2：Warm operation platform；The work top of circuit Work tool matrix is adjusted to suitable height, warm operation
Platform is to 1000~1600 DEG C；
Step 3：Place titanium alloy；According to the actual demand of instrument, placement titanium alloy is answered on circuit Work tool matrix
Close fibril；
Step 4：Laser irradiates；The surface of the single beam laser beam irradiation titanium alloy material exported using laser, laser beam
Angular illumination on titanium alloy material with surface in 30-60 degree；
Step 5：Forging and stamping wheel rolls；When laser irradiates, ground simultaneously using track of the forging and stamping wheel along laser beam irradiation
Pressure；
Step 6：Shaping test piece；The constantly height of the work top of adjustment circuit Work tool matrix, repeat step four and step
Rapid five, until instrument is rolled being molded；
Step 7：Test specimen cools down；The titanium alloy component of shaping is taken out, carries out cooling treatment immediately.
As a kind of preferred embodiment of the present invention, laser frequency is 10 hertz when the laser irradiates, laser and material
The action time for expecting surface is 100 pulses, and the sweep speed for designing laser is 100-300mm/s, sintering temperature 1400-
2100℃。
As a kind of preferred embodiment of the present invention, the laser irradiation is led to before starting with the 4-6 per minute flows risen
Enter protective gas；Described protective gas both can be nitrogen, hydrogen or argon gas single component or wherein it is any both
Mixing.
As a kind of preferred embodiment of the present invention, the test specimen cooling carries out cooling treatment stage by stage：First stage,
After specimen molding, 100-120 DEG C is cooled down per hour, until being cooled to 800 DEG C or so, is kept for 30-50 minutes；Second stage,
120-160 DEG C is cooled down per hour, until being cooled to 500 DEG C or so, is kept for 50-70 minutes；Phase III, 140- is cooled down per hour
180 DEG C, until being cooled to normal temperature.
As a kind of preferred embodiment of the present invention, when the laser irradiates, laser beam uses on titanium alloy material
Travers shape, vertical stripe-shaped or tessellate irradiation.
As a kind of preferred embodiment of the present invention, the cleaning material surface is that titanium alloy is positioned over into absolute ethyl alcohol
In be cleaned by ultrasonic.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above, for this area skill
For art personnel, it is clear that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Which point therefore, no matter from the point of view of, all should incite somebody to action
Embodiment regards exemplary as, and be it is nonrestrictive, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that all changes fallen in the implication and scope of the equivalency of claim are included in the present invention
It is interior.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. surpass extra high voltage line instrument laser formation method, it is characterised in that the forming method comprises the following steps：
Step 1：Cleaning material surface；Titanium alloy is first cleaned by ultrasonic 4-8 minutes, table is removed with distilled water flushing again after taking-up
The absolute ethyl alcohol in face, it is standby to be placed on air drying；
Step 2：Warm operation platform；The work top of circuit Work tool matrix is adjusted to suitable height, warm operation platform is extremely
1000~1600 DEG C；
Step 3：Place titanium alloy；According to the actual demand of instrument, the compound fibre of titanium alloy is placed on circuit Work tool matrix
Silk；
Step 4：Laser irradiates；The surface of the single beam laser beam irradiation titanium alloy material exported using laser, laser beam is in titanium
Angular illumination on alloy material with surface in 30-60 degree；
Step 5：Forging and stamping wheel rolls；When laser irradiates, rolled simultaneously using track of the forging and stamping wheel along laser beam irradiation；
Step 6：Shaping test piece；The constantly height of the work top of adjustment circuit Work tool matrix, repeat step four and step
Five, until instrument is rolled being molded；
Step 7：Test specimen cools down；The titanium alloy component of shaping is taken out, carries out cooling treatment immediately.
2. super extra high voltage line instrument laser formation method according to claim 1, it is characterised in that the laser irradiation
When laser frequency be 10 hertz, the action time of laser and material surface is 100 pulses, and the sweep speed for designing laser is
100-300mm/s, sintering temperature are 1400-2100 DEG C.
3. super extra high voltage line instrument laser formation method according to claim 1, it is characterised in that the laser irradiation
Protective gas is passed through with the 4-6 per minute flows risen before starting；Described protective gas both can be nitrogen, hydrogen or argon gas
Single component or both wherein any mixing.
4. super extra high voltage line instrument laser formation method according to claim 1, it is characterised in that the test specimen cooling
Cooling treatment is carried out stage by stage：First stage, after specimen molding, 100-120 DEG C is cooled down per hour, until being cooled to 800 DEG C
Left and right, kept for 30-50 minutes；Second stage, 120-160 DEG C is cooled down per hour, until being cooled to 500 DEG C or so, keep 50-70
Minute；Phase III, 140-180 DEG C is cooled down per hour, until being cooled to normal temperature.
5. super extra high voltage line instrument laser formation method according to claim 1, it is characterised in that the laser irradiation
When, laser beam is irradiated on titanium alloy material using travers shape, vertical stripe-shaped or tessellate.
6. super extra high voltage line instrument laser formation method according to claim 1, it is characterised in that the cleaning material
Surface is that titanium alloy is positioned in absolute ethyl alcohol to be cleaned by ultrasonic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710804126.8A CN107486522A (en) | 2017-09-08 | 2017-09-08 | Super extra high voltage line instrument laser formation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710804126.8A CN107486522A (en) | 2017-09-08 | 2017-09-08 | Super extra high voltage line instrument laser formation method |
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| CN201710804126.8A Pending CN107486522A (en) | 2017-09-08 | 2017-09-08 | Super extra high voltage line instrument laser formation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434340A (en) * | 2019-09-18 | 2019-11-12 | 燕山大学 | A kind of novel large titanium alloy forging mixed production method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7540996B2 (en) * | 2003-11-21 | 2009-06-02 | The Boeing Company | Laser sintered titanium alloy and direct metal fabrication method of making the same |
| CN101885063A (en) * | 2010-08-09 | 2010-11-17 | 东莞理工学院 | The laser cladding forming method of laser cladding forming equipment and a kind of metal parts |
| CN102962452A (en) * | 2012-12-14 | 2013-03-13 | 沈阳航空航天大学 | Metal laser deposition manufactured scan route planning method based on infrared temperature measurement images |
| CN103302292A (en) * | 2012-03-12 | 2013-09-18 | 中国科学院沈阳自动化研究所 | Laser direct forming process for titanium alloy part |
| CN103722171A (en) * | 2013-12-25 | 2014-04-16 | 合肥工业大学 | Honeycombed laser scanning method for selective laser sintering |
| CN104174845A (en) * | 2014-08-13 | 2014-12-03 | 杭州电子科技大学 | Selective laser melting forming method for preparing titanium alloy component |
| CN104313600A (en) * | 2014-09-28 | 2015-01-28 | 燕山大学 | Continuous point type forging and stamping laser forming repairing method for damaged titanium alloy forged piece |
| CA2954338A1 (en) * | 2014-08-07 | 2016-02-11 | Halliburton Energy Services, Inc. | Method of making objects including one or more carbides |
| CN105750543A (en) * | 2016-03-03 | 2016-07-13 | 西安铂力特激光成形技术有限公司 | Checkerboard-type laser scanning route planning method |
| CN105108339B (en) * | 2015-08-31 | 2017-04-19 | 沈阳海纳鑫科技有限公司 | Additive manufacturing method based on titanium and titanium alloy wires |
-
2017
- 2017-09-08 CN CN201710804126.8A patent/CN107486522A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7540996B2 (en) * | 2003-11-21 | 2009-06-02 | The Boeing Company | Laser sintered titanium alloy and direct metal fabrication method of making the same |
| CN101885063A (en) * | 2010-08-09 | 2010-11-17 | 东莞理工学院 | The laser cladding forming method of laser cladding forming equipment and a kind of metal parts |
| CN103302292A (en) * | 2012-03-12 | 2013-09-18 | 中国科学院沈阳自动化研究所 | Laser direct forming process for titanium alloy part |
| CN102962452A (en) * | 2012-12-14 | 2013-03-13 | 沈阳航空航天大学 | Metal laser deposition manufactured scan route planning method based on infrared temperature measurement images |
| CN103722171A (en) * | 2013-12-25 | 2014-04-16 | 合肥工业大学 | Honeycombed laser scanning method for selective laser sintering |
| CA2954338A1 (en) * | 2014-08-07 | 2016-02-11 | Halliburton Energy Services, Inc. | Method of making objects including one or more carbides |
| CN104174845A (en) * | 2014-08-13 | 2014-12-03 | 杭州电子科技大学 | Selective laser melting forming method for preparing titanium alloy component |
| CN104313600A (en) * | 2014-09-28 | 2015-01-28 | 燕山大学 | Continuous point type forging and stamping laser forming repairing method for damaged titanium alloy forged piece |
| CN105108339B (en) * | 2015-08-31 | 2017-04-19 | 沈阳海纳鑫科技有限公司 | Additive manufacturing method based on titanium and titanium alloy wires |
| CN105750543A (en) * | 2016-03-03 | 2016-07-13 | 西安铂力特激光成形技术有限公司 | Checkerboard-type laser scanning route planning method |
Non-Patent Citations (3)
| Title |
|---|
| 史玉升: "《3D打印技术系列丛书 3D打印技术概论》", 29 February 2016, 湖北科学技术出版社 * |
| 杜双明等: "《材料科学与工程概论》", 31 August 2011, 西安电子科技大学出版社 * |
| 郭天文: "《口腔科铸钛理论和技术》", 31 August 1997, 兴界图书出版公司 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434340A (en) * | 2019-09-18 | 2019-11-12 | 燕山大学 | A kind of novel large titanium alloy forging mixed production method |
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