CN104907650A - Abrasive water jet-electrolysis composite pass making method and device for metal part with thermal barrier coating - Google Patents
Abrasive water jet-electrolysis composite pass making method and device for metal part with thermal barrier coating Download PDFInfo
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- CN104907650A CN104907650A CN201510275949.7A CN201510275949A CN104907650A CN 104907650 A CN104907650 A CN 104907650A CN 201510275949 A CN201510275949 A CN 201510275949A CN 104907650 A CN104907650 A CN 104907650A
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- Prior art keywords
- thermal barrier
- barrier coating
- electrolysis
- tool
- electrode
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/06—Electrochemical machining combined with mechanical working, e.g. grinding or honing
- B23H5/08—Electrolytic grinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
- B23H9/16—Making holes using an electrolytic jet
Abstract
The invention discloses an abrasive water jet-electrolysis composite pass making method and device for metal part with thermal barrier coating. The method comprises the steps that a thermal barrier coating pass with the nonconducting workpiece surface is machined by using an abrasive water jet, and after a metal base body is exposed, a metal base body pass is machined by using electrolysis. The device comprises a workbench, a fixture, a tool electrode, a liquid inlet connector, a servo feeding device, an abrasive working liquid box, an electrolysis working liquid box, an infusion pump, a power source, an electromagnetic valve, a pressure regulating device and an infusion pipe. According to the method, it can be guaranteed that under the condition that a tool and the tool electrode are clamped and positioned at one time, the thermal barrier coating pass and the metal base body pass are sequentially machined, the position of the machined thermal barrier coating pass is coincided with the position of the machined metal base body pass, and the machining quality is easy to guarantee. According to the device, it can be guaranteed that abrasive water jet machining and electrolysis machining are carried out on same machining equipment, and the implementation of the method is guaranteed.
Description
Technical field:
The present invention relates to a kind of abrasive water-jet-electrolysis compound method for drilling with thermal barrier coating metal parts and device, it belongs to technical field.
Background technology:
Along with the high speed development of aeronautical and space technology, metal material be used alone the instructions for use that can not meet in high temperature environments.Such as nickel-based monocrystal blade, needs to prepare the operations such as thermal barrier coating by employing gaseous film control structure, surface, promotes turbo blade operating temperature.At gas turbine engine blade surface coated ceramic thermal barrier coating, can play effect that is heat insulation and reduction blade surface temperature, be one of important technology improving blade heat-resisting ability.Thermal barrier coating is a kind of nonconducting ceramic material, and be generally prepared in part top layer by plasma spraying or physical gas-phase deposite method, thickness is about 0.1-0.2mm.Thermal barrier coating is applied in aero engine turbine blades, chamber wall, some place such as runner, trunnion usually, and above-mentioned metal parts is designed with a large amount of small structure, and aperture is generally at 0.3 ~ 3.0mm.
At present, the metal parts of band thermal barrier coating carries out drilling and become the difficult problem that aero-engine manufacturing enterprise faces.Because heat barrier coat material is non-conductive, conventional electric machining process (electric spark or electrolysis) cannot be directly adopted to carry out drilling on this type of metal parts.For this problem, a kind of technique of current employing is: before part coating thermal barrier coating, process pass in advance, and then apply thermal barrier coatings, finally remove thermal barrier coating with microbit at corresponding hole site place, its complex procedures, efficiency are low, quality is wayward; Separately have a kind of processing technology to be: first coated ceramic thermal barrier coatings on blade, then adopt laser to get on except thermal barrier coating at corresponding punch position, finally use EDM Technology to punch, operation also comparatively complicated, processing cost is higher.
Abrasive waterjet cutting is a kind of emerging special warfare, it utilizes the percussion of water jet and abrasive particle kinetic energy to remove material, it is advantageous that: not by the impact of machined material electric conductivity, without heat affected area, without thermal deformation, environmental protection, to the processing of all kinds of temperature-sensitive, the difficult-to-machine material such as firmly crisp, there is unique advantage.Electrolyzed Processing utilizes the anodic solution of metal material and removes material, and machining area, without recast layer, without residual stress, without microfissure, the little hole machined of aircraft engine parts is used widely.
The feature of the above-mentioned two kinds of Special Working Technology technology of comprehensive analysis, innovation proposes the abrasive water-jet-electrolysis compound method for drilling of band thermal barrier coating metal parts, concurrently brightly devises related device.Its operation principle is as follows: after the tool-electrode Set and Positioning of workpiece and hollow, first tool-electrode is utilized to produce abrasive water-jet, the erosion effect of abrasive water-jet is utilized to remove the nonconducting thermal barrier coating of surface of the work, after metallic matrix is exposed, without the need to changing parts fixation, without the need to changing tool-electrode, recycling electrochemical machining method completes the drilling of metallic matrix.This processing method technique is simple, ensure that the thermal barrier coating pass processed overlaps with the position of metallic matrix pass, significant to the high-efficiency and precision processing solving the band thermal barrier coating metal parts pore structure of size between 0.3-3.0mm that aerospace field extensively exists.
Summary of the invention:
The invention provides a kind of abrasive water-jet-electrolysis compound method for drilling and device of thermal barrier coating metal parts, effectively can avoid the secondary clamping of workpiece in drilling process, improve working (machining) efficiency, ensure crudy.
The present invention adopts following technical scheme: a kind of abrasive water-jet-electrolysis compound method for drilling with thermal barrier coating metal parts, is characterized in that: comprise the steps
(1) powered-down;
(2) the installation location of workpiece: workpiece is installed location on the table by fixture;
(3) the installation location of tool-electrode: tool-electrode is installed and is positioned in liquid inlet joint, adjusted the position of liquid inlet joint and tool-electrode by servo feeding apparatus;
(4) utilize the nonconducting thermal barrier coating of abrasive water-jet erosion surface of the work, until the metallic matrix of Working position is exposed, form thermal barrier coating pass;
(5) power-on, utilizes Electrolyzed Processing metallic matrix, until metallic matrix pass completes.
Further, in described step (4): magnetic valve is connected abrasive material working liquid container, disconnected electrolysis working liquid container, start infusion pump, abrasive material working solution enters the tool-electrode of hollow by liquid inlet joint and is output into abrasive water-jet, the thermal barrier coating of abrasive water-jet erosion surface of the work, until on thermal barrier coating, form pass, metallic matrix is exposed.
Further, in described step (5): the position being adjusted liquid inlet joint and tool-electrode by servo feeding apparatus, keep the starting state of infusion pump, magnetic valve is connected electrolysis working liquid container, is disconnected abrasive material working liquid container, electrolysis working solution enters the tool-electrode of hollow by liquid inlet joint and exports surface of the work to, power-on, carries out Electrolyzed Processing, servo feeding apparatus controls the feeding of liquid inlet joint and tool-electrode, until complete the processing of metallic matrix pass.
Further, described abrasive material working solution is for containing Al
2o
3or the running water of SiC abrasive material 1-10g/L or ultra-pure water, the particle diameter of abrasive material is 1 μm-20 μm.
Further, described electrolysis working solution is neutral salt solution.
The present invention also adopts following technical scheme: a kind of abrasive water-jet-electrolysis compound punching device with thermal barrier coating metal parts, and it comprises workbench, fixture, tool-electrode, liquid inlet joint, servo feeding apparatus, abrasive material working liquid container, electrolysis working liquid container, infusion pump, power supply, magnetic valve, pressure-regulating device and woven hose, described workpiece installs location on the table by fixture, and described tool-electrode is fixed in liquid inlet joint, and liquid inlet joint is arranged on servo feeding apparatus, and described power supply is just, negative pole respectively with workpiece, tool-electrode connects, described magnetic valve is two enter one and go out three-way magnetic valve, one of them inlet is connected with abrasive material working liquid container, another inlet is connected with electrolysis working liquid container, liquid outlet is connected with the inlet of infusion pump, and the liquid outlet of infusion pump is connected with liquid inlet joint, and described solenoid control enters the working solution kind of infusion pump, when adopting abrasive waterjet cutting thermal barrier coating pass, abrasive material working liquid container connected by magnetic valve, disconnect electrolysis working liquid container, infusion pump transports abrasive material working solution and enters liquid inlet joint, and when adopting Electrolyzed Processing metallic matrix pass, electrolysis working liquid container connected by magnetic valve, disconnect abrasive material working liquid container, infusion pump transports electrolysis working solution and enters liquid inlet joint.
Further, described tool-electrode is the metal tube of hollow, outer wall insulation.
Further, described power supply is dc source or direct current pulse power source.
The present invention has following beneficial effect: the process characteristic of Appropriate application abrasive waterjet cutting method of the present invention and electrochemical machining method, these two kinds of processing technologys are carried out compound, first the nonconducting thermal barrier coating pass in erosion effect processing work surface of abrasive water-jet is utilized, adopt Electrolyzed Processing metallic matrix pass again, workpiece and tool-electrode only need clamped one time to locate, the thermal barrier coating pass processed overlaps with the position of metallic matrix pass, and operation is simple, and crudy is easy to ensure.
Accompanying drawing illustrates:
Fig. 1 is the abrasive water-jet-electrolysis compound punching device schematic diagram of band thermal barrier coating metal parts of the present invention.
Wherein:
1-workbench, 2-fixture, 3-tool-electrode, 4-power supply, 5-liquid inlet joint, 6-servo feeding apparatus, 7-pressure-regulating device, 8-electrolysis working liquid container, 9-magnetic valve, 10-abrasive material working liquid container, 11-infusion pump, 12-woven hose, 13-workpiece, 131-surface of the work thermal barrier coating.
Detailed description of the invention:
Abrasive water-jet-electrolysis compound the method for drilling of band thermal barrier coating metal parts of the present invention comprises the steps:
(1) powered-down 4;
(2) the installation location of workpiece 13: workpiece 13 is installed by fixture 2 and is positioned on workbench 1;
(3) the installation location of tool-electrode 3: tool-electrode 3 is installed and is positioned in liquid inlet joint 5, adjusted the position (the surperficial 10-20mm of end face distance workpiece 13 of tool-electrode 3) of liquid inlet joint 5 and tool-electrode 3 by servo feeding apparatus 6;
(4) abrasive waterjet cutting thermal barrier coating pass is utilized: magnetic valve 9 is connected abrasive material working liquid container 10, disconnected electrolysis working liquid container 8, start infusion pump 11, abrasive material working solution enters the tool-electrode 3 of hollow by liquid inlet joint 5 and is output into abrasive water-jet (pressure regulation spectrum: 2-8MPa), the thermal barrier coating 131 on abrasive water-jet erosion workpiece 13 surface, until on thermal barrier coating 131, form pass, metallic matrix is exposed;
(5) Electrolyzed Processing metallic matrix pass is utilized: the position (the surperficial 0.05-0.2mm of end face distance workpiece 13 of tool-electrode 3) being adjusted liquid inlet joint 5 and tool-electrode 3 by servo feeding apparatus 6, keep the starting state of infusion pump 11, electrolysis working liquid container 8 connected by magnetic valve 9, disconnect abrasive material working liquid container 10, electrolysis working solution enters the tool-electrode 3 of hollow by liquid inlet joint 5 and exports surface of the work to, power-on 4, carry out Electrolyzed Processing, servo feeding apparatus 6 controls the feeding of liquid inlet joint 5 and tool-electrode 3, until complete the processing of metallic matrix pass.
In the abrasive water-jet-electrolysis compound method for drilling of band thermal barrier coating metal parts of the present invention, abrasive material working solution is for containing Al
2o
3or the running water of SiC abrasive material 1-10g/L or ultra-pure water, the particle diameter of abrasive material is 1 μm-20 μm.Power supply is dc source or direct current pulse power source.Electrolysis working solution is neutral salt solution.Tool-electrode is the metal tube of hollow, outer wall insulation.
In the abrasive water-jet-electrolysis compound method for drilling of band thermal barrier coating metal parts of the present invention, first abrasive material working solution is output into high-pressure grinding material water jet by the tool-electrode of hollow, abrasive water-jet erosion workpiece, abrasive material erosion effect is utilized to remove the nonconducting thermal barrier coating of surface of the work, until the metallic matrix of Working position is exposed, form thermal barrier coating pass; Then not changing the clamping of workpiece and tool-electrode, without the need to changing tool-electrode, being exported by the tool-electrode of electrolysis working solution by hollow, open electrolysis working power, adopt the metallic matrix pass of Electrolyzed Processing conduction, tool-electrode feeding, until pass completes.The present invention passes through the process characteristic of Appropriate application abrasive waterjet cutting method and electrochemical machining method, these two kinds of processing technologys are carried out compound, workpiece and tool-electrode only need clamped one time to locate, the thermal barrier coating pass processed overlaps with the position of metallic matrix pass, operation is simple, and crudy is easy to ensure.
Please refer to shown in Fig. 1, abrasive water-jet-electrolysis compound the punching device of band thermal barrier coating metal parts of the present invention comprises workbench 1, fixture 2, tool-electrode 3, liquid inlet joint 5, servo feeding apparatus 6, abrasive material working liquid container 10, electrolysis working liquid container 8, infusion pump 11, power supply 4, magnetic valve 9, pressure-regulating device 7 and woven hose 12.The positive and negative electrode of power supply 4 is connected with workpiece 13, tool-electrode 3 respectively.Tool-electrode 3 is fixed in liquid inlet joint 5, and liquid inlet joint 5 is arranged on servo feeding apparatus 6.Wherein magnetic valve 9 is two enter one and go out three-way magnetic valve, one of them inlet is connected with abrasive material working liquid container 10, another inlet is connected with electrolysis working liquid container 8, and liquid outlet is connected with the inlet of infusion pump 11, and the liquid outlet of infusion pump 11 is connected with liquid inlet joint 5.Magnetic valve 9 controls the working solution kind entering infusion pump 11: when adopting abrasive waterjet cutting thermal barrier coating pass, magnetic valve 9 is connected abrasive material working liquid container 10, is disconnected electrolysis working liquid container 8, under the work of infusion pump 11, abrasive material working solution is output into abrasive water-jet by liquid inlet joint 5 entering tool electrode 3; When adopting Electrolyzed Processing metal pass, magnetic valve 9 is connected electrolysis working liquid container 8, is disconnected abrasive material working liquid container 10, and under the work of infusion pump 11, electrolysis working solution is output into electrolysis working solution jet by liquid inlet joint 5 entering tool electrode 3.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (8)
1. the abrasive water-jet with thermal barrier coating metal parts-electrolysis compound method for drilling, is characterized in that: comprise the steps
(1) powered-down (4);
(2) the installation location of workpiece (13): workpiece (13) is installed by fixture (2) and is positioned on workbench (1);
(3) the installation location of tool-electrode (3): tool-electrode (3) is installed and is positioned in liquid inlet joint (5), adjusted the position of liquid inlet joint (5) and tool-electrode (3) by servo feeding apparatus (6);
(4) utilize the nonconducting thermal barrier coating of abrasive water-jet erosion surface of the work, until the metallic matrix of Working position is exposed, form thermal barrier coating pass;
(5) power-on (4), utilizes Electrolyzed Processing metallic matrix, until metallic matrix pass completes.
2. abrasive water-jet-electrolysis compound the method for drilling of band thermal barrier coating metal parts as claimed in claim 1, it is characterized in that: in described step (4): abrasive material working liquid container (10) connected by magnetic valve (9), disconnect electrolysis working liquid container (8), start infusion pump (11), abrasive material working solution is entered the tool-electrode (3) of hollow by liquid inlet joint (5) and is output into abrasive water-jet, the thermal barrier coating (131) on abrasive water-jet erosion workpiece (13) surface, until form pass on thermal barrier coating (131), metallic matrix is exposed.
3. abrasive water-jet-electrolysis compound the method for drilling of band thermal barrier coating metal parts as claimed in claim 2, it is characterized in that: in described step (5): the position being adjusted liquid inlet joint (5) and tool-electrode (3) by servo feeding apparatus (6), keep the starting state of infusion pump (11), electrolysis working liquid container (8) connected by magnetic valve (9), disconnect abrasive material working liquid container (10), electrolysis working solution is entered the tool-electrode (3) of hollow by liquid inlet joint (5) and is exported to surface of the work, power-on (4), carry out Electrolyzed Processing, servo feeding apparatus (6) controls the feeding of liquid inlet joint (5) and tool-electrode (3), until complete the processing of metallic matrix pass.
4. abrasive water-jet-electrolysis compound the method for drilling of band thermal barrier coating metal parts as claimed in claim 3, is characterized in that: described abrasive material working solution is for containing Al
2o
3or the running water of SiC abrasive material 1-10g/L or ultra-pure water, the particle diameter of abrasive material is 1 μm-20 μm.
5. abrasive water-jet-electrolysis compound the method for drilling of band thermal barrier coating metal parts as claimed in claim 4, is characterized in that: described electrolysis working solution is neutral salt solution.
6. abrasive water-jet-electrolysis compound the punching device with thermal barrier coating metal parts, it is characterized in that: comprise workbench (1), fixture (2), tool-electrode (3), liquid inlet joint (5), servo feeding apparatus (6), abrasive material working liquid container (10), electrolysis working liquid container (8), infusion pump (11), power supply (4), magnetic valve (9), pressure-regulating device (7) and woven hose (12), described workpiece (13) is installed by fixture (2) and is positioned on workbench (1), described tool-electrode (3) is fixed in liquid inlet joint (5), liquid inlet joint (5) is arranged on servo feeding apparatus (6), described power supply (4) just, negative pole respectively with workpiece (13), tool-electrode (3) connects, described magnetic valve (9) is two enter one and go out three-way magnetic valve, one of them inlet is connected with abrasive material working liquid container (10), another inlet is connected with electrolysis working liquid container (8), liquid outlet is connected with the inlet of infusion pump (11), the liquid outlet of infusion pump (11) is connected with liquid inlet joint (5).
7. abrasive water-jet-electrolysis compound the punching device of band thermal barrier coating metal parts as claimed in claim 6, is characterized in that: described tool-electrode is the metal tube of hollow, outer wall insulation.
8. abrasive water-jet-electrolysis compound the punching device of band thermal barrier coating metal parts as claimed in claim 7, is characterized in that: described power supply (4) is dc source or direct current pulse power source.
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Cited By (11)
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| CN105195841A (en) * | 2015-11-06 | 2015-12-30 | 山东理工大学 | Method for reducing electrode vibration amplitude of tubular electrode during electrolytic machining |
| CN105855649A (en) * | 2016-05-10 | 2016-08-17 | 南京航空航天大学 | System with double inner liquid spraying tool cathodes and electrolytic grinding and milling method of system with double inner liquid spraying tool cathodes |
| CN106541192A (en) * | 2017-01-19 | 2017-03-29 | 常州工学院 | A kind of hex hole electrolytic machining device |
| CN107344258A (en) * | 2016-05-03 | 2017-11-14 | 通用电气公司 | The liquid guiding laser and electro-discharge machining of combination |
| CN110340472A (en) * | 2019-07-09 | 2019-10-18 | 华中科技大学 | A kind of metalwork fine structure abradant jet electrical-chemistry method System and method for |
| CN112809111A (en) * | 2021-01-20 | 2021-05-18 | 南方科技大学 | Ultrasonic-plasma electrolytic combined machining method and machining device for workpiece |
| CN113106532A (en) * | 2021-04-07 | 2021-07-13 | 江苏源清动力技术有限公司 | Process for removing thermal barrier coating of thermal component of aero-engine and gas turbine |
| CN113211103A (en) * | 2021-05-31 | 2021-08-06 | 南京航空航天大学 | Abrasive erosion machining device capable of being attached to electric spark machine tool and perforation machining method |
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| CN110340472A (en) * | 2019-07-09 | 2019-10-18 | 华中科技大学 | A kind of metalwork fine structure abradant jet electrical-chemistry method System and method for |
| CN112809111B (en) * | 2021-01-20 | 2022-05-20 | 南方科技大学 | Ultrasonic-plasma electrolytic combined machining method and machining device for workpiece |
| CN112809111A (en) * | 2021-01-20 | 2021-05-18 | 南方科技大学 | Ultrasonic-plasma electrolytic combined machining method and machining device for workpiece |
| CN113106532A (en) * | 2021-04-07 | 2021-07-13 | 江苏源清动力技术有限公司 | Process for removing thermal barrier coating of thermal component of aero-engine and gas turbine |
| CN113211103B (en) * | 2021-05-31 | 2022-04-01 | 南京航空航天大学 | Abrasive erosion machining device attached to electric spark machine tool and perforation machining method |
| CN113211103A (en) * | 2021-05-31 | 2021-08-06 | 南京航空航天大学 | Abrasive erosion machining device capable of being attached to electric spark machine tool and perforation machining method |
| CN113857597A (en) * | 2021-09-23 | 2021-12-31 | 江苏大学 | Electrolyte back-flow fluid control method based on laser scanning flanging structure drainage |
| CN114346337A (en) * | 2022-01-21 | 2022-04-15 | 江苏大学 | Abrasive particle assisted laser electrolysis self-coupling cooperative alignment punching method and system |
| CN114505551A (en) * | 2022-01-28 | 2022-05-17 | 江苏大学 | Method for realizing integrated processing of special-shaped deep small holes with thermal barrier coatings by limiting liquid light transmission through dry ice |
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