CN102873417B - Electrochemical deburring processing method for turbine disc mortises and special device thereof - Google Patents
Electrochemical deburring processing method for turbine disc mortises and special device thereof Download PDFInfo
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- CN102873417B CN102873417B CN201210367386.0A CN201210367386A CN102873417B CN 102873417 B CN102873417 B CN 102873417B CN 201210367386 A CN201210367386 A CN 201210367386A CN 102873417 B CN102873417 B CN 102873417B
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Abstract
The invention discloses an electrochemical deburring processing method for turbine disc mortises, which comprises the following steps of: positioning and clamping parts of a processed turbine disc (10) on a clamp; connecting the turbine disc (10) with the positive pole of a power supply (12), and connecting a stationary cathode (4) with the negative pole of the power supply (12); feeding flowing electrolyte between a mortise of the turbine disc (10) and the stationary cathode (4), switching on the power supply so as to begin to carry out electrochemical deburring processing, and controlling the corresponding processing time; and switching off the power supply, turning over the turbine disc (10), and repeating the steps so as to process the other side of the turbine disc (10), wherein in the process of processing, requirements on the processing voltage, the processing current, the electrolyte compositions, the electrolyte concentration, the electrolyte pressure P, the electrolyte temperature T, the processing clearance delta and the processing time are required. The clamp for positioning and clamping parts of the processed turbine disc (10) is specifically a part of a special device for electrochemical deburring processing of turbine disc mortises. The method disclosed by the invention is high in processing efficiency, good in processing effect and low in cost, and has great economic values.
Description
Technical field
The present invention relates to method for electrochemical machining and the device technique field of mechanical structured member, specifically provide method and the special purpose device thereof of the processing of a kind of turbine disc mortise electrochemical deburring.
Background technology
The turbine disk is the strength member of aero-engine, and it forms turbine rotor with the turbo blade to install above, the acting parts of mechanical energy that to be turbogenerator by thermal energy be.Turbine disk working environment is extremely severe, subjects impact and blade and the centrifugal force of self, the change that colds and heat succeed each other, Cyclic Stress, vibrations fatigue etc. of high-temperature high-pressure fuel gas, therefore, to processing request high-quality, high reliability, the antifatigue of the turbine disk.The turbine disk is primarily of disk body and be distributed in the plate wheel edge dozens of fir-shaped mortise of week composition, complex structure, and difficulty of processing is large, and the crudy of its tongue-and-groove directly affects anti-fatigue performance and the service life of the turbine disk.Turbine disc mortise generally all adopt broaching or milling method, processing after trough rim there is burr, sharp limit, adopt artificial file, sand paper, gauze etc. one by one tongue-and-groove carry out the behindhand type such as manual grinding, polishing, working (machining) efficiency is low, cost is high, and quality is unstable, is unsuitable for batch production.Electrochemical deburring processing method is the effective way of turbine disc mortise deburring skin processing.
The principle of electrical-chemistry method utilizes metal anodic solution can occur in the electrolytic solution and remove material, by the technical process of part machine-shaping.Electrical-chemistry method is a kind of without machining stress, method for electrochemical machining without heat affected area, is widely used in the processing of the part such as casing, blade profile.
People urgently wish the method and the special purpose device thereof that obtain the excellent turbine disc mortise electrochemical deburring processing of a kind of technique effect.
Summary of the invention
The object of the invention is to provide method and the special purpose device thereof of the excellent turbine disc mortise electrochemical deburring processing of a kind of technique effect.The object of the invention is alternative traditional diamond-making technique, solution turbine disc mortise seamed edge deburring and the difficult problem that polishing rounding working (machining) efficiency is low, cost is high, quality is unstable, for effectively reducing hand labor intensity, improve work situation, a kind of process and device of electrical-chemistry method burr removal technology are provided.
The invention provides the method for a kind of turbine disc mortise electrochemical deburring processing, it is characterized in that: concrete procedure of processing is as follows successively:
1. by the processed turbine disk 10 part positioning and clamping on fixture, require that the tongue-and-groove of the turbine disk 10 aligns fixed cathode 4, according to the gap between the technological requirement adjustment tongue-and-groove seamed edge of the turbine disk 10 and fixed cathode 4;
2. the turbine disk 10 is connected the positive pole of power supply 12, fixed cathode 4 connects the negative pole of power supply 12.
3. between the turbine disk 10 tongue-and-groove and fixed cathode 4, pass into the electrolyte of flowing, and switch on power, start deburring electrical-chemistry method, control corresponding process time; .
4. powered-down, overturns the turbine disk 10, repeats above-mentioned steps processing another side;
5. in process, process parameters range meets following requirement: machining voltage U:10 ~ 20V; Processing electric current I:20 ~ 100A; Bath composition: NaNO
3+ H
2o; Concentration of electrolyte: 5% ~ 10%; Electrolyte pressure P:0.2 ~ 0.3MPa; Electrolyte temperature T:30 ~ 35 DEG C; Machining gap Δ: 0.05 ~ 0.5mm; Process time t:1 ~ 2min.
The method of described turbine disc mortise electrochemical deburring processing, it is characterized in that: the fixture for the processed turbine disk 10 of positioning and clamping is specially a part for turbine disc mortise electrochemical deburring processing special purpose device, being specifically constructed as follows of whirlpool turbine disc mortise electrochemical deburring processing special purpose device:
Base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, work box and base 11, power supply 12, electrolytic bath 13, electrolyte 14, drain pipe 16;
Wherein: the turbine disk 10 as work piece to be fixed on inside support ring 6 and to be arranged on apotting spindle 2; Support ring 6 arranged beneath has base plate 1, and support ring 6 external stability is provided with feed pipe 5, and feed pipe 5 is provided with each tongue-and-groove that the outlet of multiple feed flow correspond to the turbine disk 10 respectively, the magnitude setting of feed flow outlet is identical with the tongue-and-groove quantity of the turbine disk 10; The turbine disk 10 arranged beneath has fixed cathode 4, and its gap is therebetween machining gap Δ; Be furnished with ring 7 of obturaging above the turbine disk 10, ring 7 of obturaging exports the formation seal structure that closely cooperates respectively with above the tongue-and-groove of support ring 6 madial wall and the turbine disk 10;
The entirety be jointly made up of base plate 1, apotting spindle 2, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, the turbine disk 10 after above-mentioned assembling is all arranged on the workbench in work box and base 11 inner chamber;
Work box and base 11 bottom are provided with the drain pipe 16 connecting electrolytic bath 13;
Power supply 12 is arranged in the outside of work box and base 11, and the positive pole of power supply 12, negative pole respectively connected the turbine disk 10, fixed cathode 4.
The concrete fixed form that the described turbine disk 10 is fixed on apotting spindle 2 meets following requirement: apotting spindle 2 is specially bolt type structure, its underpart is bolt head structure, its top is provided with screw thread, screw thread place also coordinates and is equipped with nut 8, is also provided with the conduction gland 9 be sleeved on apotting spindle 2 between nut 8 and the turbine disk 10;
Adjustment packing ring 3 is also provided with between the bolt head structure and the turbine disk 10 of apotting spindle 2 bottom.
The method of described turbine disc mortise electrochemical deburring processing, is characterized in that: fixed cathode 4 upper surface is coated with insulated paint;
Described support ring 6 interior diameter is 388.6mm;
The described turbine disk 10 is provided with 72 tongue-and-grooves, these tongue-and-grooves are evenly arranged along the outer edge surface of the turbine disk 10.
The present invention is claimed turbine disc mortise electrochemical deburring processing special purpose device also, it is characterized in that: being specifically constructed as follows of described turbine disc mortise electrochemical deburring processing special purpose device:
Base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, work box and base 11, power supply 12, electrolytic bath 13, electrolyte 14, drain pipe 16;
Wherein: the turbine disk 10 as work piece to be fixed on inside support ring 6 and to be arranged on apotting spindle 2; Support ring 6 arranged beneath has base plate 1, and support ring 6 external stability is provided with feed pipe 5, and feed pipe 5 is provided with each tongue-and-groove that the outlet of multiple feed flow correspond to the turbine disk 10 respectively, the magnitude setting of feed flow outlet is identical with the tongue-and-groove quantity of the turbine disk 10; The turbine disk 10 arranged beneath has fixed cathode 4, and its gap is therebetween machining gap Δ; Be furnished with ring 7 of obturaging above the turbine disk 10, ring 7 of obturaging exports the formation seal structure that closely cooperates respectively with above the tongue-and-groove of support ring 6 madial wall and the turbine disk 10;
The entirety be jointly made up of base plate 1, apotting spindle 2, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, the turbine disk 10 after above-mentioned assembling is all arranged on the workbench in work box and base 11 inner chamber;
Work box and base 11 bottom are provided with the drain pipe 16 connecting electrolytic bath 13;
Power supply 12 is arranged in the outside of work box and base 11, and the positive pole of power supply 12, negative pole respectively connected the turbine disk 10, fixed cathode 4.
The concrete fixed form that the described turbine disk 10 is fixed on apotting spindle 2 meets following requirement: apotting spindle 2 is specially bolt type structure, its underpart is bolt head structure, its top is provided with screw thread, screw thread place also coordinates and is equipped with nut 8, is also provided with the conduction gland 9 be sleeved on apotting spindle 2 between nut 8 and the turbine disk 10;
Adjustment packing ring 3 is also provided with between the bolt head structure and the turbine disk 10 of apotting spindle 2 bottom.
Described turbine disc mortise electrochemical deburring processing special purpose device, is characterized in that: fixed cathode 4 upper surface is coated with insulated paint;
Described support ring 6 interior diameter is 388.6mm.
Turbine disc mortise electrochemical deburring processing special purpose device has the functions such as conduction, location, clamping, formation electrolyte flow field, the electric current that described power supply 122 needs for feeding machining for dc source, electrolyte supply system provides uniform temperature, concentration, clean electrolyte.This device is simple to operate, accurate positioning, safe and reliable.
Can clamped one time be realized by this device, carry out deburring and the rounding processing of all tongue-and-grooves of the whole turbine disk 10.Can Continuous maching, greatly raise the efficiency, machined surface quality, rounding is even.
The key problem in technology of this process: one is designing and developing of fixed cathode 4 and Set and Positioning system, fixed cathode 4 can be designed to time processing tongue-and-groove, also can be designed to the multiple or all tongue-and-grooves of time processing, so just greatly improve working (machining) efficiency, but also increase technical difficulty simultaneously; Two is the solidifications of electrochemical machining process parameter optimization, and this process belongs to the special process, and key is process control.By assay optimization, determine best technological parameter, and be cured, ensure the stability of machining process.By above-mentioned technological break-through, the deburring and the rounding that realize turbine disc mortise process batch production that is efficient, low cost.
Of the present invention for surface finishing of part processing, removal burr, sharp Edge Blend etc., can working (machining) efficiency be increased substantially, and surface roughness 2 ~ 3 grades can be improved, effectively improve piece surface integrality.
The object of the invention is alternative traditional diamond-making technique, the solution turbine disk 10 tongue-and-groove seamed edge deburring and the difficult problem that polishing rounding working (machining) efficiency is low, cost is high, quality is unstable, for effectively reducing hand labor intensity, improve work situation, a kind of process and device of electrical-chemistry method burr removal technology are provided.
This invention can be applicable to aero-engine turbine disk class part and manufactures field, the electrical-chemistry method relatively method such as manual deburring can be raised the efficiency more than 20 doubly (manual polishing deburring 1 turbine disk is about needed 40 hours, electrochemical deburring processing only about needs 10 minutes), surface roughness 2 ~ 3 grades can be improved, surface quality of workpieces can be significantly improved, effective raising piece surface integrality, cuts down finished cost and alleviates labor strength greatly, is suitable for producing in enormous quantities.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is turbine disk electrochemical deburring processing unit (plant) schematic diagram;
Fig. 2 is fixed cathode;
Fig. 3 is the fixture support ring of band electrolyte feed pipe;
Fig. 4 is turbine disk workpiece sketch;
Fig. 5 is the partial enlarged drawing at " I " place in Fig. 4.
Detailed description of the invention
Base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, the turbine disk 10, work box and base 11, power supply 12, electrolytic bath 13, electrolyte 14, inlet 15.
Embodiment 1
As shown in Figure 1, electrochemical deburring processing unit (plant) comprises power supply 12, work box and base 11, fixed cathode 4, clamping workpiece navigation system and electrolyte supply system.Fixed electrode 4 and Set and Positioning system, have conduction, location, clamping, form the functions such as electrolyte flow field, for clamping workpiece to be machined and the turbine disk 10, realizes electrochemical deburring processing.Power supply 12 is dc source, for the stable electric current providing machining to need.Electrolyte supply system provides uniform temperature, concentration, clean electrolyte, and removes electrochemical products.
Figure 2 shows that fixed cathode 4, it adopts overall structure, stainless steel material, it is dispersed with multiple fir shape electrode contrary with workpiece tenon groove structure.
Figure 3 shows that the support ring 6 of band electrolyte feed pipe 5.Support ring 6 to be enclosed within outside fixed cathode 4 and to form enclosed cavity with the turbine disk 10, ring 7 of obturaging, and ensures that the electrolyte flowed out from electrolyte feed pipe 5 flows out from the machining gap between fixed cathode 4 and the turbine disk 10.
The operation principle of electrochemical deburring processing is the anodic solution that metal occurs in the electrolytic solution based on electrochemical action, but it is different from general Electrolyzed Processing, electrochemical deburring adds man-hour, the machining gap at the burr position of the turbine disk 10 is significantly less than the gap at other positions of workpiece, current field concentrates on the turbine disk 10 seamed edge burr place, the i.e. most advanced and sophisticated position of anode surface, relatively easily completes localization local dissolution to burr at short notice.Shown in Fig. 1, Fig. 2, Fig. 3, the method for the present embodiment is described, implementation process comprises the following steps:
1) with reference to figure 1, be arranged on by the turbine disk 10 on apotting spindle 2, adjustment packing ring 3 ensures machining gap Δ, and ensure the tongue-and-groove of the turbine disk 10 and fixed cathode 4, the electrolyte outlet of support ring 6 aligns, conduction gland 9 is installed and fastening nut 8, compresses ring 7 of obturaging, complete the installation of the turbine disk 10.
2) be connected with conduction gland 9 by the positive pole of power supply 12, power supply 12 negative pole is connected with fixed cathode 4.
3) prepare electrolyte 14, be connected by electrolyte 14 by pump with pipeline with electrolyte feed pipe 5, the electrolyte after processing flow back into electrolytic bath 13 automatically, recycles.
4) after checking that the turbine disk 10 is in place, the both positive and negative polarity of power supply 12, electrolyte supply system connect, first start electrolyte supply system, switch on power 12, control process time well, start electrochemical deburring processing.
5) turbine disk 10 is overturn, after reinstalling, processing another side.
6) with reference to figure 2, fixed cathode 4 manufacture can adopt corrosion resistant plate, use Wire EDM time processing shaping, and at fixed cathode 4 upper surface, material such as coating insulated paint or refractory ceramics etc. reduces the electric discharge processing of stray electrical current compost finished surface.
Embodiment 2
A method for turbine disc mortise electrochemical deburring processing, concrete procedure of processing is as follows successively:
1. by the processed turbine disk 10 part positioning and clamping on fixture, require that the tongue-and-groove of the turbine disk 10 aligns fixed cathode 4, according to the gap between the technological requirement adjustment tongue-and-groove seamed edge of the turbine disk 10 and fixed cathode 4;
2. the turbine disk 10 is connected the positive pole of power supply 12, fixed cathode 4 connects the negative pole of power supply 12.
3. between the turbine disk 10 tongue-and-groove and fixed cathode 4, pass into the electrolyte of flowing, and switch on power, start deburring electrical-chemistry method, control corresponding process time; .
4. powered-down, overturns the turbine disk 10, repeats above-mentioned steps processing another side;
5. in process, process parameters range meets following requirement: machining voltage U:10 ~ 20V; Processing electric current I:20 ~ 100A; Bath composition: NaNO
3+ H
2o; Concentration of electrolyte: 5% ~ 10%; Electrolyte pressure P:0.2 ~ 0.3MPa; Electrolyte temperature T:30 ~ 35 DEG C; Machining gap Δ: 0.05 ~ 0.5mm; Process time t:1 ~ 2min.
Fixture for the processed turbine disk 10 of positioning and clamping is specially a part for turbine disc mortise electrochemical deburring processing special purpose device, being specifically constructed as follows of whirlpool turbine disc mortise electrochemical deburring processing special purpose device:
Base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, work box and base 11, power supply 12, electrolytic bath 13, electrolyte 14, drain pipe 16;
Wherein: the turbine disk 10 as work piece to be fixed on inside support ring 6 and to be arranged on apotting spindle 2; Support ring 6 arranged beneath has base plate 1, and support ring 6 external stability is provided with feed pipe 5, and feed pipe 5 is provided with each tongue-and-groove that the outlet of multiple feed flow correspond to the turbine disk 10 respectively, the magnitude setting of feed flow outlet is identical with the tongue-and-groove quantity of the turbine disk 10; The turbine disk 10 arranged beneath has fixed cathode 4, and its gap is therebetween machining gap Δ; Be furnished with ring 7 of obturaging above the turbine disk 10, ring 7 of obturaging exports the formation seal structure that closely cooperates respectively with above the tongue-and-groove of support ring 6 madial wall and the turbine disk 10;
The entirety be jointly made up of base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, the turbine disk 10 after above-mentioned assembling is all arranged on the workbench in work box and base 11 inner chamber;
Work box and base 11 bottom are provided with the drain pipe 16 connecting electrolytic bath 13;
Power supply 12 is arranged in the outside of work box and base 11, and the positive pole of power supply 12, negative pole respectively connected the turbine disk 10, fixed cathode 4.
The concrete fixed form that the described turbine disk 10 is fixed on apotting spindle 2 meets following requirement: apotting spindle 2 is specially bolt type structure, its underpart is bolt head structure, its top is provided with screw thread, screw thread place also coordinates and is equipped with nut 8, is also provided with the conduction gland 9 be sleeved on apotting spindle 2 between nut 8 and the turbine disk 10;
Adjustment packing ring 3 is also provided with between the bolt head structure and the turbine disk 10 of apotting spindle 2 bottom.
The method of described turbine disc mortise electrochemical deburring processing, is characterized in that: fixed cathode 4 upper surface is coated with insulated paint;
Described support ring 6 interior diameter is 388.6mm;
The described turbine disk 10 is provided with 72 tongue-and-grooves, these tongue-and-grooves are evenly arranged along the outer edge surface of the turbine disk 10.
The present embodiment is claimed turbine disc mortise electrochemical deburring processing special purpose device also, and it is specifically constructed as follows:
Base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, work box and base 11, power supply 12, electrolytic bath 13, electrolyte 14, drain pipe 16;
Wherein: the turbine disk 10 as work piece to be fixed on inside support ring 6 and to be arranged on apotting spindle 2; Support ring 6 arranged beneath has base plate 1, and support ring 6 external stability is provided with feed pipe 5, and feed pipe 5 is provided with each tongue-and-groove that the outlet of multiple feed flow correspond to the turbine disk 10 respectively, the magnitude setting of feed flow outlet is identical with the tongue-and-groove quantity of the turbine disk 10; The turbine disk 10 arranged beneath has fixed cathode 4, and its gap is therebetween machining gap Δ; Be furnished with ring 7 of obturaging above the turbine disk 10, ring 7 of obturaging exports the formation seal structure that closely cooperates respectively with above the tongue-and-groove of support ring 6 madial wall and the turbine disk 10;
The entirety be jointly made up of base plate 1, apotting spindle 2, adjustment packing ring 3, fixed cathode 4, electrolyte feed pipe 5, support ring 6, ring 7 of obturaging, nut 8, conduction gland 9, the turbine disk 10 after above-mentioned assembling is all arranged on the workbench in work box and base 11 inner chamber;
Work box and base 11 bottom are provided with the drain pipe 16 connecting electrolytic bath 13;
Power supply 12 is arranged in the outside of work box and base 11, and the positive pole of power supply 12, negative pole respectively connected the turbine disk 10, fixed cathode 4.
The concrete fixed form that the described turbine disk 10 is fixed on apotting spindle 2 meets following requirement: apotting spindle 2 is specially bolt type structure, its underpart is bolt head structure, its top is provided with screw thread, screw thread place also coordinates and is equipped with nut 8, is also provided with the conduction gland 9 be sleeved on apotting spindle 2 between nut 8 and the turbine disk 10;
Adjustment packing ring 3 is also provided with between the bolt head structure and the turbine disk 10 of apotting spindle 2 bottom.
Described turbine disc mortise electrochemical deburring processing special purpose device, is characterized in that: fixed cathode 4 upper surface is coated with insulated paint;
Described support ring 6 interior diameter is 388.6mm.
Turbine disc mortise electrochemical deburring processing special purpose device has the functions such as conduction, location, clamping, formation electrolyte flow field, the electric current that described power supply 122 needs for feeding machining for dc source, electrolyte supply system provides uniform temperature, concentration, clean electrolyte.This device is simple to operate, accurate positioning, safe and reliable.
Can clamped one time be realized by this device, carry out deburring and the rounding processing of all tongue-and-grooves of the whole turbine disk 10.Can Continuous maching, greatly raise the efficiency, machined surface quality, rounding is even.
The key problem in technology of this process: one is designing and developing of fixed cathode 4 and Set and Positioning system, fixed cathode 4 can be designed to time processing tongue-and-groove, also can be designed to the multiple or all tongue-and-grooves of time processing, so just greatly improve working (machining) efficiency, but also increase technical difficulty simultaneously; Two is the solidifications of electrochemical machining process parameter optimization, and this process belongs to the special process, and key is process control.By assay optimization, determine best technological parameter, and be cured, ensure the stability of machining process.By above-mentioned technological break-through, the deburring and the rounding that realize turbine disc mortise process batch production that is efficient, low cost.
The present embodiment for surface finishing of part processing, remove burr, sharp Edge Blend etc., can working (machining) efficiency be increased substantially, and surface roughness 2 ~ 3 grades can be improved, effectively improve piece surface integrality.
The present embodiment object is alternative traditional diamond-making technique, the solution turbine disk 10 tongue-and-groove seamed edge deburring and the difficult problem that polishing rounding working (machining) efficiency is low, cost is high, quality is unstable, for effectively reducing hand labor intensity, improve work situation, a kind of process and device of electrical-chemistry method burr removal technology are provided.
This embodiment can be applicable to aero-engine turbine disk class part and manufactures field, the electrical-chemistry method relatively method such as manual deburring can be raised the efficiency more than 20 doubly (manual polishing deburring 1 turbine disk is about needed 40 hours, electrochemical deburring processing only about needs 10 minutes), surface roughness 2 ~ 3 grades can be improved, surface quality of workpieces can be significantly improved, effective raising piece surface integrality, cuts down finished cost and alleviates labor strength greatly, is suitable for producing in enormous quantities.
Claims (6)
1. a method for turbine disc mortise electrochemical deburring processing, is characterized in that: concrete procedure of processing is as follows successively:
1. by the processed turbine disk (10) part positioning and clamping on fixture, require that the tongue-and-groove of the turbine disk (10) aligns fixed cathode (4), adjust the gap between the tongue-and-groove seamed edge of the turbine disk (10) and fixed cathode (4) according to technological requirement;
2. the turbine disk (10) is connected the positive pole of power supply (12), fixed cathode (4) connects the negative pole of power supply (12);
3. between the turbine disk (10) tongue-and-groove and fixed cathode (4), pass into the electrolyte of flowing, and switch on power, start deburring electrical-chemistry method, control corresponding process time;
4. powered-down, overturns the turbine disk (10), repeats above-mentioned steps processing another side;
5. in process, process parameters range meets following requirement: machining voltage U:10 ~ 20V; Processing electric current I:20 ~ 100A; Bath composition: NaNO
3+ H
2o; Concentration of electrolyte: 5% ~ 10%; Electrolyte pressure P:0.2 ~ 0.3MPa; Electrolyte temperature T:30 ~ 35 DEG C; Machining gap Δ: 0.05 ~ 0.5mm; Process time t:1 ~ 2min;
Fixture for the processed turbine disk (10) of positioning and clamping is specially a part for turbine disc mortise electrochemical deburring processing special purpose device, being specifically constructed as follows of turbine disc mortise electrochemical deburring processing special purpose device:
Base plate (1), apotting spindle (2), adjustment packing ring (3), fixed cathode (4), electrolyte feed pipe (5), support ring (6), ring of obturaging (7), nut (8), conduction gland (9), work box and base (11), power supply (12), electrolytic bath (13), electrolyte (14), drain pipe (16);
Wherein: the turbine disk (10) as work piece is fixed on support ring (6) inner side and is arranged on apotting spindle (2); Support ring (6) arranged beneath has base plate (1), support ring (6) external stability is provided with feed pipe (5), feed pipe (5) is provided with each tongue-and-groove that the outlet of multiple feed flow correspond to the turbine disk (10) respectively, the magnitude setting of feed flow outlet is identical with the tongue-and-groove quantity of the turbine disk (10); The turbine disk (10) arranged beneath has fixed cathode (4), and its gap is therebetween machining gap Δ; The turbine disk (10) top is furnished with ring of obturaging (7), and ring of obturaging (7) exports the formation seal structure that closely cooperates respectively with above the tongue-and-groove of support ring (6) madial wall and the turbine disk (10);
The entirety be jointly made up of base plate (1), apotting spindle (2), fixed cathode (4), electrolyte feed pipe (5), support ring (6), ring of obturaging (7), the turbine disk (10) after assembling is all arranged on the workbench in work box and base (11) inner chamber;
Work box and base (11) bottom are provided with the drain pipe (16) connecting electrolytic bath (13);
Power supply (12) is arranged in the outside of work box and base (11), and the positive pole of power supply (12), negative pole respectively connected the turbine disk (10), fixed cathode (4).
2. according to the method for turbine disc mortise electrochemical deburring processing described in claim 1, it is characterized in that: the concrete fixed form that the described turbine disk (10) is fixed on apotting spindle (2) meets following requirement: apotting spindle (2) is specially bolt type structure, its underpart is bolt head structure, its top is provided with screw thread, screw thread place also coordinates and is equipped with nut (8), is also provided with the conduction gland (9) be sleeved on apotting spindle (2) between nut (8) and the turbine disk (10);
Adjustment packing ring (3) is also provided with between bolt head structure in apotting spindle (2) bottom and the turbine disk (10).
3., according to the method for turbine disc mortise electrochemical deburring processing described in claim 2, it is characterized in that: fixed cathode (4) upper surface is coated with insulated paint;
Described support ring (6) interior diameter is 388.6mm;
The described turbine disk (10) is provided with 72 tongue-and-grooves, these tongue-and-grooves are evenly arranged along the outer edge surface of the turbine disk (10).
4. turbine disc mortise electrochemical deburring processing special purpose device, is characterized in that: being specifically constructed as follows of turbine disc mortise electrochemical deburring processing special purpose device:
Base plate (1), apotting spindle (2), adjustment packing ring (3), fixed cathode (4), electrolyte feed pipe (5), support ring (6), ring of obturaging (7), nut (8), conduction gland (9), work box and base (11), power supply (12), electrolytic bath (13), electrolyte (14), drain pipe (16);
Wherein: the turbine disk (10) as work piece is fixed on support ring (6) inner side and is arranged on apotting spindle (2); Support ring (6) arranged beneath has base plate (1), support ring (6) external stability is provided with feed pipe (5), feed pipe (5) is provided with each tongue-and-groove that the outlet of multiple feed flow correspond to the turbine disk (10) respectively, the magnitude setting of feed flow outlet is identical with the tongue-and-groove quantity of the turbine disk (10); The turbine disk (10) arranged beneath has fixed cathode (4), and its gap is therebetween machining gap Δ; The turbine disk (10) top is furnished with ring of obturaging (7), and ring of obturaging (7) exports the formation seal structure that closely cooperates respectively with above the tongue-and-groove of support ring (6) madial wall and the turbine disk (10);
The entirety be jointly made up of base plate (1), apotting spindle (2), fixed cathode (4), electrolyte feed pipe (5), support ring (6), ring of obturaging (7), the turbine disk (10) after assembling is all arranged on the workbench in work box and base (11) inner chamber;
Work box and base (11) bottom are provided with the drain pipe (16) connecting electrolytic bath (13);
Power supply (12) is arranged in the outside of work box and base (11), and the positive pole of power supply (12), negative pole respectively connected the turbine disk (10), fixed cathode (4).
5. according to turbine disc mortise electrochemical deburring processing special purpose device described in claim 4, it is characterized in that: the concrete fixed form that the described turbine disk (10) is fixed on apotting spindle (2) meets following requirement: apotting spindle (2) is specially bolt type structure, its underpart is bolt head structure, its top is provided with screw thread, screw thread place also coordinates and is equipped with nut (8), is also provided with the conduction gland (9) be sleeved on apotting spindle (2) between nut (8) and the turbine disk (10);
Adjustment packing ring (3) is also provided with between bolt head structure in apotting spindle (2) bottom and the turbine disk (10).
6., according to turbine disc mortise electrochemical deburring processing special purpose device described in claim 5, it is characterized in that: fixed cathode (4) upper surface is coated with insulated paint;
Described support ring (6) interior diameter is 388.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367386.0A CN102873417B (en) | 2012-09-28 | 2012-09-28 | Electrochemical deburring processing method for turbine disc mortises and special device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367386.0A CN102873417B (en) | 2012-09-28 | 2012-09-28 | Electrochemical deburring processing method for turbine disc mortises and special device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102873417A CN102873417A (en) | 2013-01-16 |
| CN102873417B true CN102873417B (en) | 2015-04-08 |
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| CN103624347A (en) * | 2013-11-19 | 2014-03-12 | 成都发动机（集团）有限公司 | Electrolytic machining method for aviation engine crankcase profiles |
| CN103707016B (en) * | 2013-12-10 | 2016-09-21 | 中国南方航空工业(集团)有限公司 | The wire pulling method method of powder metallurgy superalloy turbine disc tongue-and-groove |
| FR3042138B1 (en) * | 2015-10-07 | 2018-05-25 | Pemtec | TOOLING FOR THE MACHINING OF MULTI-STAGE DISKS WITH PECM, ASSEMBLY AND ELECTROCHEMICAL MACHINING MACHINE COMPRISING THE TOOLS, AND METHOD USING THE TOOLS |
| US11260464B2 (en) | 2017-03-03 | 2022-03-01 | XCMG Construction Machinery Co., Ltd. | Device and method for deburring of metal workpiece |
| CN107962262B (en) * | 2017-12-01 | 2019-02-01 | 中国航发沈阳黎明航空发动机有限责任公司 | The electrode and processing unit (plant) and method of turbine disc mortise electrolysis cutting rapid shaping |
| CN109909570B (en) * | 2019-03-15 | 2020-07-28 | 南京航空航天大学 | Sleeve material electrolytic machining clamp and method for diffuser with insoluble blade tail edge |
| CN110315156B (en) * | 2019-06-20 | 2021-01-22 | 中国航发贵州黎阳航空动力有限公司 | Calibration and clamping device of slow-speed wire-moving machine tool |
| CN110340467B (en) * | 2019-06-28 | 2020-07-28 | 南京航空航天大学 | Electrolytic machining device and method for opening-symmetrical cathode mortise |
| CN111438411B (en) * | 2020-04-21 | 2021-04-13 | 南京浦航机械科技开发有限公司 | Electrolytic machining clamp for chamfering of mobile phone lens bracket group and technological method thereof |
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| JP4522565B2 (en) * | 2000-10-19 | 2010-08-11 | 富士通株式会社 | Electropolishing apparatus and deburring method for metal workpiece having press burr |
| CN101457387B (en) * | 2007-12-13 | 2010-07-28 | 广西玉柴机器股份有限公司 | Method for removing cross-hole bur |
| DE102008015162B3 (en) * | 2008-03-20 | 2009-10-15 | Hell Gravure Systems Gmbh & Co. Kg | Method and device for processing gravure cylinders |
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