CN108456881A - Titanium alloy part repairing method based on micro-arc spark deposition technology - Google Patents
Titanium alloy part repairing method based on micro-arc spark deposition technology Download PDFInfo
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- CN108456881A CN108456881A CN201810121308.XA CN201810121308A CN108456881A CN 108456881 A CN108456881 A CN 108456881A CN 201810121308 A CN201810121308 A CN 201810121308A CN 108456881 A CN108456881 A CN 108456881A
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- titanium alloy
- arc spark
- repaired
- spark deposition
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 28
- 230000008021 deposition Effects 0.000 title claims abstract description 14
- 238000005516 engineering process Methods 0.000 title abstract description 4
- 238000000151 deposition Methods 0.000 claims abstract description 30
- 230000008439 repair process Effects 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000007772 electrode material Substances 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 244000137852 Petrea volubilis Species 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000007517 polishing process Methods 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000576 coating method Methods 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
A titanium alloy part repairing method based on a micro-arc spark deposition technology comprises the following steps: (1) polishing the part to be repaired of the part; (2) cleaning a part to be repaired of the part; (3) cutting the repairing material into a round rod-shaped electrode, and processing the end surface of the round rod-shaped electrode into a cone, a round table or a spherical crown; (4) connecting a part to be repaired with the cathode of the micro-arc spark deposition equipment, connecting an electrode material with the anode of the micro-arc spark deposition equipment, and installing the end face of the electrode with a conical, circular truncated cone or spherical crown shape as a processing end; (5) repairing by using the set micro-arc spark deposition parameters, and performing local atmosphere protection by using protective gas; (6) and (3) polishing the coating at the repaired part, then polishing to enable the size of the coating to meet the use requirement, and finally cleaning the part. The method can perfectly repair the damaged part of the titanium alloy part, the repaired part meets the technical requirements, the service life of the part is prolonged, the repair cost is low, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of methods of part reparation, and in particular to a kind of titanium alloy based on micro-arc spark deposition technique
Part restorative procedure.
Background technology
Titanium has many advantages, such as specific strength height, corrosion resistance excellent, good biocompatibility, in aerospace, weaponry
And civilian industry field has a wide range of applications.With the extensive application of titanium, occur large quantities of titanium alloy members by
It is badly in need of repairing in destruction, the destruction of engineering goods is often since surface, abrasion, burn into high-temperature oxydation etc., and surface
Local damage often result in entire part failure again, eventually lead to equipment halt production.
Currently, metal surface recovery technique mainly has the methods of Brush Plating, laser melting coating, thermal spraying, but these types is repaired
Technology all Shortcomings, the coating such as Brush Plating is relatively thin, and matrix combination force difference；Although the cladding layer and matrix of laser melting coating
Excellent bonding performance, but equipment cost is high, and clad layer surface finish is poor；The coating binding force of thermal spraying is small, anti-abrasive wear
It is poor with Erosive Properties.
Micro-arc spark deposition is a kind of simple for process and cost-effective sufacing.It is to utilize quick high-energy arteries and veins
Impulse electricity, moment make anode (electrode) fusing, are coating subsequently applied to cathode (matrix) surface solidification, and being formed has particular characteristic coating
Sufacing.The technique is small with heat input, equipment is simple, sedimentary bond strength is high and can be implemented to piece surface
Many advantages, such as local strengthening.
Invention content
In order to overcome the shortcomings of that existing metal surface restorative procedure can not be suitable for titanium alloy member reparation, the present invention proposes
A kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique repairs titanium alloy by the way of micro-arc spark deposition
The defects of mechanical wear of piece surface appearance and scuffing.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique, matrix are the titanium alloy zero for needing to repair
Part, electrode material is consistent with part part material to be repaired, and the restorative procedure includes the following steps：
(1) it polishes part position to be repaired, the oxidation film at removal part position to be repaired；
(2) part position to be repaired is cleaned, removes spot；
(3) repair materials scantling is cut into the circle stick electrode of Φ 0.5-6mm, and circle is processed into its end face
Cone, round platform or spherical crown shape；
(4) part is connected with micro-arc spark depositing device cathode, electrode material is connected with anode, and electrode is had circle
Cone, round platform or spherical crown shape end are installed as processing end；
(5) it is repaired using the micro-arc spark deposition parameter of setting, and is carried out using protective gas in repair process
Localised protection；
(6) it repairs rear coating to part to polish, then polishes, its size is made to meet requirement, finally will
Cleaning of Parts is clean.
Further, in the step (1), position polishing process to be repaired is the sand paper using 120#~2000#, abrasive band
Or grinding head is polished.
In the step (6), the rear polishing process of repairing is sand paper, the sand for using 240#~2000# successively
Band or grinding head are polished, and the reparation rear polishing method is preferably using aluminium oxide suspension, diamond lap
Cream/agent is polished.
Further, in the step (2), the method for the removal spot is to be cleaned using absolute ethyl alcohol or acetone.
Further, in the step (3), the taper of the circular cone is 1:0.1~1:5, the taper of round platform is 1:0.1~
1:5, the radian of spherical crown shape is
In the step (5), the protective gas is one kind in argon gas, nitrogen, helium, hydrogen, carbon dioxide gas
Or several mixtures, it repairs layer thickness and is more than the required thickness of part requirement.
In the step (5), the micro-arc spark deposition parameter is：50~6000W of output power, voltage 15-120V,
Discharge pulse width is 3-1500 μ s.
In the step (5), protective gas protected mode is protected for local atmosphere, and keeps putting during Repair gene
Oxygen concentration is less than 1% in electric machining region.
Beneficial effects of the present invention are mainly manifested in：The present invention is formd on the titanium alloy component damaged and be will not fall off
, the reparation of metallurgical binding state, open the new way of titanium alloy reparation.The present invention can be by adjusting electric parameter
And the coating that the gain of parameter different performance such as sedimentation time requires；In addition, the present invention can also be prepared on titanium alloy component with
The inconsistent coating of original material, to meet special requirement, the service life to improving titanium alloy parts has very
High practical value.
Specific implementation mode
Technical scheme of the present invention is made further and illustrated with reference to specific embodiment, not involved by the limitation present invention
And range.
A kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique, matrix are the titanium alloy zero for needing to repair
Part, electrode material is consistent with part part material to be repaired, and the restorative procedure includes the following steps：
(1) it polishes part position to be repaired, the oxidation film at removal part position to be repaired；
(2) part position to be repaired is cleaned, removes spot；
(3) repair materials scantling is cut into the circle stick electrode of Φ 0.5-6mm, and circle is processed into its end face
Cone, round platform or spherical crown shape；
(4) part is connected with micro-arc spark depositing device cathode, electrode material is connected with anode, and electrode is had circle
Cone, round platform or spherical crown shape end are installed as processing end；
(5) it is repaired using the micro-arc spark deposition parameter of setting, and uses protective gas in repair process；
(6) it repairs rear coating to part to polish, then polishes, its size is made to meet requirement, finally will
Cleaning of Parts is clean.
Further, in the step (1), position polishing process to be repaired is the sand paper using 120#~2000#, abrasive band
Or grinding head etc. is polished.
In the step (6), the rear polishing process of repairing is sand paper, the sand for using 240#~2000# successively
Band or grinding head etc. are polished, and the reparation rear polishing method is preferably ground using aluminium oxide suspension, diamond
Mill cream/agent is polished.
Further, in the step (2), the method for the removal spot is to be cleaned using absolute ethyl alcohol or acetone.
Further, in the step (3), the taper of the circular cone is 1:0.1~1:5, the taper of round platform is 1:0.1~
1:5, the radian of spherical crown shape is
In the step (5), the protective gas is one kind in argon gas, nitrogen, helium, hydrogen, carbon dioxide gas
Or several mixtures, it repairs layer thickness and should be greater than the required thickness of part requirement.
In the step (5), the micro-arc spark deposition parameter is：50~6000W of output power, voltage 15-120V,
Discharge pulse width is 3-1500 μ s.
In the step (5), protective gas protected mode is protected for local atmosphere, and keeps putting during Repair gene
Oxygen concentration is less than 1% in electric machining region.
The present embodiment repairs TC4 titanium alloy components, the TC4 titanium alloy component sizes be 200mm × 150mm ×
150mm, undamaged portion size are 20mm × 12mm × 12mm, and restorative procedure includes the following steps：
(1) it is polished step by step with the sand paper of 240#~1000# successively part position to be repaired, removal part position to be repaired
Oxidation film；
(2) part position to be repaired is cleaned using absolute ethyl alcohol or acetone, removes spot；
(3) electrode material size is cut into Φ 3mm, and one end is processed into circular cone, taper is about 1:1；
(4) part being connected with the pulse power anode of micro-arc spark depositing device, electrode material is connected with cathode, and
There is conical end to be installed as processing end at electrode；
(5) specific process parameter of unbalanced pulse power supply, deposition is：Output power 500W, discharge voltage 30V, electric discharge
Pulse width is 20 μ s, and the movement speed of electrode remains a constant speed, and protective gas uses argon gas, oxygen concentration control in obturator
Between 0.04%-0.08%.Coating size stops manufacture after capable of completely filling damaged part.
(6) it repairs rear coating to part to be polished step by step with the sand paper of 240#~2000# successively, then uses aluminium oxide
Suspension polishes, its size is made to meet requirement.It is finally that Cleaning of Parts is clean.
Claims (8)
1. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique, it is characterised in that：Matrix is to need to repair
Titanium alloy component, repair materials are consistent or similar with part part material to be repaired, and the restorative procedure includes the following steps：
(1) it polishes part position to be repaired, the oxidation film at removal part position to be repaired；
(2) part position to be repaired is cleaned, removes spot；
(3) repair materials size is cut into the circle stick electrode of Φ 0.5-6mm, and circular cone, round platform are processed into its end face
Or spherical crown shape；
(4) part is connected with the cathode of micro-arc spark depositing device, electrode material is connected with anode, and electrode is had circle
Cone, round platform or spherical crown shape end are installed as processing end；
(5) it is repaired using the micro-arc spark deposition parameter of setting, and atmosphere is carried out using protective gas in repair process
Protection；
(6) it polishes the position after part reparation, then polishes, its size is made to meet requirement, it is finally that part is clear
Wash clean.
2. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as described in claim 1, feature exist
In：In the step (1), position polishing process to be repaired be using with sand paper, abrasive band or the grinding head of 120#~2000# into
Row polishing.
3. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as claimed in claim 1 or 2, feature
It is：In the step (6), it is described repair rear polishing process be the sand paper for using 240#~2000# successively, abrasive band or
Grinding head is polished, and the reparation rear polishing method is preferably using aluminium oxide suspension, diamond paste/agent
It is polished.
4. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as claimed in claim 1 or 2, feature
It is：In the step (2), the method for the removal spot is preferably cleaned using absolute ethyl alcohol or acetone.
5. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as claimed in claim 1 or 2, feature
It is：In the step (3), the taper of the circular cone is 1:0.1~1:5, the taper of round platform is 1:0.1~1:5, spherical crown shape
Radian is
6. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as claimed in claim 1 or 2, feature
It is：In the step (5), the protective gas be argon gas, nitrogen, helium, hydrogen, one kind in carbon dioxide gas or
Several mixtures repairs layer thickness and is more than the required thickness of part requirement.
7. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as claimed in claim 1 or 2, feature
It is：In the step (5), the micro-arc spark deposition parameter is：50~6000W of output power, voltage 15-120V, puts
Electronic pulse width is 3-1500 μ s.
8. a kind of titanium alloy component restorative procedure based on micro-arc spark deposition technique as claimed in claim 6, feature exist
In：In the step (5), protective gas protected mode is protected for local atmosphere, and keeps electric discharge to add during Repair gene
Oxygen concentration is less than 1% in the domain of work area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121308.XA CN108456881A (en) | 2018-02-07 | 2018-02-07 | Titanium alloy part repairing method based on micro-arc spark deposition technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121308.XA CN108456881A (en) | 2018-02-07 | 2018-02-07 | Titanium alloy part repairing method based on micro-arc spark deposition technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108456881A true CN108456881A (en) | 2018-08-28 |
Family
ID=63239788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810121308.XA Pending CN108456881A (en) | 2018-02-07 | 2018-02-07 | Titanium alloy part repairing method based on micro-arc spark deposition technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108456881A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528376A (en) * | 2012-03-02 | 2012-07-04 | 台州学院 | Electric spark precision repairing method for plastic mould |
-
2018
- 2018-02-07 CN CN201810121308.XA patent/CN108456881A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528376A (en) * | 2012-03-02 | 2012-07-04 | 台州学院 | Electric spark precision repairing method for plastic mould |
Non-Patent Citations (2)
| Title |
|---|
| 谢剑舟: ""基于高能微弧火花技术的钛合金本体修复涂层制备研究"", 《万方数据》 * |
| 魏国: ""电火花沉积层质量的影响因素研究"", 《电加工与模具》 * |
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Application publication date: 20180828 |