CN105567942A - Control method for elastance of large-diameter high-temperature alloy elastic ring - Google Patents
Control method for elastance of large-diameter high-temperature alloy elastic ring Download PDFInfo
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Abstract
The invention provides a control method for elastance of a large-diameter high-temperature alloy elastic ring. The method comprises a step of determining a heat treatment process and a heat treatment fixture structure. The heat treatment process is employed; a high-temperature alloy material can only undergo ageing heat treatment once; a green part made of the high-temperature alloy material is in the state of a solid solution; heat treatment capable of relieving stress is selected and used in the processing of the green part; after processing, the part is loaded into a special heat treatment fixture for ageing heat treatment; so the heat treatment performance and elastance of the part are both guaranteed. The heat treatment fixture used in the invention is composed of a base and a gland; the base and the gland of the heat treatment fixture are provided with front edges matching with the part and capable of preventing deformation of the part during ageing heat treatment after combination; and the base of the heat treatment fixture is provided with a boss controlling the elastance of the part. The method provided by the invention has the advantages of capacity of overcoming the technical problem that conventional machining process cannot be guaranteed, easiness in realization and stable processing quality.
Description
Technical field
The present invention relates to Machining Technology field, particularly a kind of major diameter high temperature alloy resilient ring flicks amount control method.
Background technology
In Machining Technology, particularly in aircraft engine, the processing and manufacturing of Gas Turbine rotor component, the major diameter high temperature alloy resilient ring amount of flicking control techniques is the key problem in technology of resilient ring processing always, and this type of technology receives much concern always.The major diameter high temperature alloy resilient ring amount of flicking to determine under resilient ring opening part state of nature gap size and tests load lower opening gap size, and conventional machining process processing method cannot ensure, randomness is very big.The present invention is that the technological method for processing working out same kind of parts provides new thinking, can promote the use of in same kind of parts, has broad application prospects in aircraft engine of new generation, the processing of ground turbine combustion engine.A kind of major diameter high temperature alloy resilient ring amount of flicking control techniques, be mainly used in the processing of aircraft engine major diameter high temperature alloy resilient ring, solve the major diameter high temperature alloy resilient ring amount of flicking to determine under resilient ring opening part state of nature gap size and test load lower opening gap size, the technical barrier that conventional machining process processing method cannot ensure.
Summary of the invention
The object of the invention is to solve major diameter high temperature alloy resilient ring, under current processing method is difficult to ensure opening part state of nature and test the technical bottleneck problem of load gap size, spy provides a kind of major diameter high temperature alloy resilient ring and flicks amount control method.
The invention provides a kind of major diameter high temperature alloy resilient ring and flick amount control method, it is characterized in that: described major diameter high temperature alloy resilient ring flicks amount control method and comprises the following steps:
Heat-treatment protocol and fixture of heat treatment structure are determined: adopt thermal treatment process, high temperature alloy can only carry out an aging strengthening model, such part woollen state is solid solution, hidden lino removal is selected in the course of processing, finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, both met part heat treatment performance, and can the amount of flicking have been ensured again.
Adopt fixture of heat treatment, be made up of base and gland, clamp base and gland have the seam coordinated with part, control after combination to produce distortion in part aging strengthening model process.Clamp base has and controls the part amount of flicking boss, length L, i.e. gap size L under resilient ring opening part state of nature.
Described procedure of processing comprises:
Rough turn processing profile, carries out rough turn processing parts profile to the blank through solution heat treatment, removes most of surplus.Machined parameters is: rotating speed n=14r/min, amount of feed f=0.2-0.22mm/r, cutting-in t=1mm;
Hidden lino removal, because most of surplus is removed in rough turn processing, inside parts remains a large amount of machining stress, by hidden lino removal, reduces part deformation.
Machined parameters is as follows:
Equipment for Heating Processing: middle temperature electric furnace
Charging temperature :≤150 DEG C
Holding temperature: 550 ± 10 DEG C
Soaking time: 120 ~ 135min
The type of cooling: air cooling
Remediation criterion face and finish turning profile, the part after Overheating Treatment has certain distortion, will carry out Repair gene before precision work to reference plane.Profile is processed for benchmark carries out finish turning with the reference plane after repairing.Machined parameters is: n=16-20r/minf=0.16mm/rt=0.3mm;
Cutting line cutting and elimination electromachining surface, according to gap size L under resilient ring opening part state of nature, calculates the length needing Linear cut to remove, by redundance on Linear cut excision part.There is For Remelting Metals layer in linear cutter position, clears up linear cutter surface, removes For Remelting Metals layer.
Aging strengthening model, loads special fixture of heat treatment by part, notes opening part to be arranged on base boss, notes coordinating with in clamp base and gland simultaneously.Part is put into heat treatment furnace together in company with fixture, carries out aging strengthening model by heat treating regime.
Equipment for Heating Processing: middle temperature vacuum oven
Charging temperature :≤150 DEG C
Heat-up rate: 300 ± 10 DEG C/h
Holding temperature: 620 ± 10 DEG C
Soaking time: 300min ~ 315min
The type of cooling: applying argon gas 0.2 ~ 0.4MPa is chilled to less than 80 DEG C and comes out of the stove.
Heat-treatment protocol provided by the invention, part woollen state is solid solution, selects hidden lino removal in the course of processing, and finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, has both met part heat treatment performance, can ensure the amount of flicking again.。
Adopt NC vertical lathe to process, point thick, smart two work steps carry out, and effectively can reduce the machining deformation of sheet part, reliably ensure that dimensional precision and technical requirements.When going surplus, the working method adopting segmentation to cut, not only reduces machining stress, controls part deformation, and can realize automatic chip breaking, be conducive to chip removal and chip breaking.In the establishment of numerical control program, in conjunction with parts character, program by the theoretical profile of part, connect cutter position in profile and adopt the mode tangentially cut out, make incision cut out smooth transition, and by simulating on computers, inspection, eliminating cutter are in the interference situation of part.
Advantage of the present invention:
Major diameter high temperature alloy resilient ring of the present invention flicks amount control method, solve a kind of major diameter high temperature alloy of aircraft engine of new generation resilient ring amount of flicking control techniques, to solve under major diameter high temperature alloy resilient ring opening part state of nature gap size and test load lower opening gap size, the technical barrier that conventional machining process processing method cannot ensure.Have and be simple and easy to realize, the advantage that processing quality is stable, ensure that detail design requirement.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the structural representation of unit clamp of the present invention;
Fig. 2 is the local structure schematic diagram of unit clamp of the present invention;
Fig. 3 clamp base controls the part amount of flicking boss structure schematic diagram;
Fig. 4 is design of part schematic diagram;
Fig. 5 is flow process chart.。
Embodiment
Embodiment 1
The invention provides a kind of major diameter high temperature alloy resilient ring and flick amount control method, it is characterized in that: described major diameter high temperature alloy resilient ring flicks amount control method and comprises the following steps:
Heat-treatment protocol and fixture of heat treatment structure are determined: adopt thermal treatment process, high temperature alloy can only carry out an aging strengthening model, such part woollen state is solid solution, hidden lino removal is selected in the course of processing, finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, both met part heat treatment performance, and can the amount of flicking have been ensured again.
Adopt fixture of heat treatment, be made up of base and gland, clamp base and gland have the seam coordinated with part, control after combination to produce distortion in part aging strengthening model process.Clamp base has and controls the part amount of flicking boss, length L, i.e. gap size L under resilient ring opening part state of nature.
Described procedure of processing comprises:
Rough turn processing profile, carries out rough turn processing parts profile to the blank through solution heat treatment, removes most of surplus.Machined parameters is: n=14r/minf=0.22mm/rt=1mm;
Hidden lino removal, because most of surplus is removed in rough turn processing, inside parts remains a large amount of machining stress, by hidden lino removal, reduces part deformation.
Machined parameters is as follows:
Equipment for Heating Processing: middle temperature electric furnace
Charging temperature :≤150 DEG C
Holding temperature: 560 DEG C
Soaking time: 135min
The type of cooling: air cooling
Remediation criterion face and finish turning profile, the part after Overheating Treatment has certain distortion, will carry out Repair gene before precision work to reference plane.Profile is processed for benchmark carries out finish turning with the reference plane after repairing.Machined parameters is: n=20r/minf=0.16mm/rt=0.3mm;
Cutting line cutting and elimination electromachining surface, according to gap size L under resilient ring opening part state of nature, calculates the length needing Linear cut to remove, by redundance on Linear cut excision part.There is For Remelting Metals layer in linear cutter position, clears up linear cutter surface, removes For Remelting Metals layer.
Aging strengthening model, loads special fixture of heat treatment by part, notes opening part to be arranged on base boss, notes coordinating with in clamp base and gland simultaneously.Part is put into heat treatment furnace together in company with fixture, carries out aging strengthening model by heat treating regime.
Equipment for Heating Processing: middle temperature vacuum oven
Charging temperature :≤150 DEG C
Heat-up rate: 310 DEG C/h
Holding temperature: 630 DEG C
Soaking time: 315min
The type of cooling: applying argon gas 0.4MPa is chilled to less than 80 DEG C and comes out of the stove.
Heat-treatment protocol provided by the invention, part woollen state is solid solution, selects hidden lino removal in the course of processing, and finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, has both met part heat treatment performance, can ensure the amount of flicking again.。
Adopt NC vertical lathe to process, point thick, smart two work steps carry out, and effectively can reduce the machining deformation of sheet part, reliably ensure that dimensional precision and technical requirements.When going surplus, the working method adopting segmentation to cut, not only reduces machining stress, controls part deformation, and can realize automatic chip breaking, be conducive to chip removal and chip breaking.In the establishment of numerical control program, in conjunction with parts character, program by the theoretical profile of part, connect cutter position in profile and adopt the mode tangentially cut out, make incision cut out smooth transition, and by simulating on computers, inspection, eliminating cutter are in the interference situation of part.
Embodiment 2
Present embodiments provide a kind of major diameter high temperature alloy resilient ring and flick amount control method, it is characterized in that: described major diameter high temperature alloy resilient ring flicks amount control method and comprises the following steps:
Heat-treatment protocol and fixture of heat treatment structure are determined: adopt thermal treatment process, high temperature alloy can only carry out an aging strengthening model, such part woollen state is solid solution, hidden lino removal is selected in the course of processing, finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, both met part heat treatment performance, and can the amount of flicking have been ensured again.
Adopt fixture of heat treatment, be made up of base and gland, clamp base and gland have the seam coordinated with part, control after combination to produce distortion in part aging strengthening model process.Clamp base has and controls the part amount of flicking boss, length L, i.e. gap size L under resilient ring opening part state of nature.
Described procedure of processing comprises:
Rough turn processing profile, carries out rough turn processing parts profile to the blank through solution heat treatment, removes most of surplus.Machined parameters is: n=14r/minf=0.21mm/rt=1mm;
Hidden lino removal, because most of surplus is removed in rough turn processing, inside parts remains a large amount of machining stress, by hidden lino removal, reduces part deformation.
Machined parameters is as follows:
Equipment for Heating Processing: middle temperature electric furnace
Charging temperature :≤150 DEG C
Holding temperature: 550 DEG C
Soaking time: 130min
The type of cooling: air cooling
Remediation criterion face and finish turning profile, the part after Overheating Treatment has certain distortion, will carry out Repair gene before precision work to reference plane.Profile is processed for benchmark carries out finish turning with the reference plane after repairing.Machined parameters is: n=18r/minf=0.16mm/rt=0.3mm;
Cutting line cutting and elimination electromachining surface, according to gap size L under resilient ring opening part state of nature, calculates the length needing Linear cut to remove, by redundance on Linear cut excision part.There is For Remelting Metals layer in linear cutter position, clears up linear cutter surface, removes For Remelting Metals layer.
Aging strengthening model, loads special fixture of heat treatment by part, notes opening part to be arranged on base boss, notes coordinating with in clamp base and gland simultaneously.Part is put into heat treatment furnace together in company with fixture, carries out aging strengthening model by heat treating regime.
Equipment for Heating Processing: middle temperature vacuum oven
Charging temperature :≤150 DEG C
Heat-up rate: 300 DEG C/h
Holding temperature: 620 DEG C
Soaking time: 310min
The type of cooling: applying argon gas 0.3MPa is chilled to less than 80 DEG C and comes out of the stove.
Heat-treatment protocol provided by the invention, part woollen state is solid solution, selects hidden lino removal in the course of processing, and finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, has both met part heat treatment performance, can ensure the amount of flicking again.。
Adopt NC vertical lathe to process, point thick, smart two work steps carry out, and effectively can reduce the machining deformation of sheet part, reliably ensure that dimensional precision and technical requirements.When going surplus, the working method adopting segmentation to cut, not only reduces machining stress, controls part deformation, and can realize automatic chip breaking, be conducive to chip removal and chip breaking.In the establishment of numerical control program, in conjunction with parts character, program by the theoretical profile of part, connect cutter position in profile and adopt the mode tangentially cut out, make incision cut out smooth transition, and by simulating on computers, inspection, eliminating cutter are in the interference situation of part.
Embodiment 3
Present embodiments provide a kind of major diameter high temperature alloy resilient ring and flick amount control method, it is characterized in that: described major diameter high temperature alloy resilient ring flicks amount control method and comprises the following steps:
Heat-treatment protocol and fixture of heat treatment structure are determined: adopt thermal treatment process, high temperature alloy can only carry out an aging strengthening model, such part woollen state is solid solution, hidden lino removal is selected in the course of processing, finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, both met part heat treatment performance, and can the amount of flicking have been ensured again.
Adopt fixture of heat treatment, be made up of base and gland, clamp base and gland have the seam coordinated with part, control after combination to produce distortion in part aging strengthening model process.Clamp base has and controls the part amount of flicking boss, length L, i.e. gap size L under resilient ring opening part state of nature.
Described procedure of processing comprises:
Rough turn processing profile, carries out rough turn processing parts profile to the blank through solution heat treatment, removes most of surplus.Machined parameters is: n=14r/minf=0.2mm/rt=1mm;
Hidden lino removal, because most of surplus is removed in rough turn processing, inside parts remains a large amount of machining stress, by hidden lino removal, reduces part deformation.
Machined parameters is as follows:
Equipment for Heating Processing: middle temperature electric furnace
Charging temperature :≤150 DEG C
Holding temperature: 540 DEG C
Soaking time: 120min
The type of cooling: air cooling
Remediation criterion face and finish turning profile, the part after Overheating Treatment has certain distortion, will carry out Repair gene before precision work to reference plane.Profile is processed for benchmark carries out finish turning with the reference plane after repairing.Machined parameters is: n=16r/minf=0.16mm/rt=0.3mm;
Cutting line cutting and elimination electromachining surface, according to gap size L under resilient ring opening part state of nature, calculates the length needing Linear cut to remove, by redundance on Linear cut excision part.There is For Remelting Metals layer in linear cutter position, clears up linear cutter surface, removes For Remelting Metals layer.
Aging strengthening model, loads special fixture of heat treatment by part, notes opening part to be arranged on base boss, notes coordinating with in clamp base and gland simultaneously.Part is put into heat treatment furnace together in company with fixture, carries out aging strengthening model by heat treating regime.
Equipment for Heating Processing: middle temperature vacuum oven
Charging temperature :≤150 DEG C
Heat-up rate: 290 DEG C/h
Holding temperature: 610 DEG C
Soaking time: 300min
The type of cooling: applying argon gas 0.2MPa is chilled to less than 80 DEG C and comes out of the stove.
Heat-treatment protocol provided by the invention, part woollen state is solid solution, selects hidden lino removal in the course of processing, and finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, has both met part heat treatment performance, can ensure the amount of flicking again.。
Adopt NC vertical lathe to process, point thick, smart two work steps carry out, and effectively can reduce the machining deformation of sheet part, reliably ensure that dimensional precision and technical requirements.When going surplus, the working method adopting segmentation to cut, not only reduces machining stress, controls part deformation, and can realize automatic chip breaking, be conducive to chip removal and chip breaking.In the establishment of numerical control program, in conjunction with parts character, program by the theoretical profile of part, connect cutter position in profile and adopt the mode tangentially cut out, make incision cut out smooth transition, and by simulating on computers, inspection, eliminating cutter are in the interference situation of part.
Claims (2)
1. major diameter high temperature alloy resilient ring flicks an amount control method, it is characterized in that: described major diameter high temperature alloy resilient ring flicks amount control method and comprises the following steps:
Heat-treatment protocol and fixture of heat treatment structure are determined: adopt thermal treatment process, high temperature alloy can only carry out an aging strengthening model, such part woollen state is solid solution, hidden lino removal is selected in the course of processing, finally part is contained in special fixture of heat treatment carries out aging strengthening model in processing, both met part heat treatment performance, and can the amount of flicking have been ensured again;
Adopt fixture of heat treatment, be made up of base and gland, clamp base and gland have the seam coordinated with part, control after combination to produce distortion in part aging strengthening model process; Clamp base has and controls the part amount of flicking boss, length L, i.e. gap size L under resilient ring opening part state of nature.
2. flick amount control method according to major diameter high temperature alloy resilient ring according to claim 1, it is characterized in that: described procedure of processing comprises:
Rough turn processing profile, carries out rough turn processing parts profile to the blank through solution heat treatment, removes most of surplus; Machined parameters is: rotating speed n=14r/min, amount of feed f=0.2-0.22mm/r, cutting-in t=1mm;
Hidden lino removal, because most of surplus is removed in rough turn processing, inside parts remains a large amount of machining stress, by hidden lino removal, reduces part deformation;
Machined parameters is as follows:
Equipment for Heating Processing: middle temperature electric furnace
Charging temperature :≤150 DEG C
Holding temperature: 550 ± 10 DEG C
Soaking time: 120 ~ 135min
The type of cooling: air cooling
Remediation criterion face and finish turning profile, the part after Overheating Treatment has certain distortion, will carry out Repair gene before precision work to reference plane; Profile is processed for benchmark carries out finish turning with the reference plane after repairing; Machined parameters is: n=16-20r/minf=0.16mm/rt=0.3mm;
Cutting line cutting and elimination electromachining surface, according to gap size L under resilient ring opening part state of nature, calculates the length needing Linear cut to remove, by redundance on Linear cut excision part; Because linear cutter position exists For Remelting Metals layer, need to clear up linear cutter surface, remove For Remelting Metals layer;
Aging strengthening model, loads special fixture of heat treatment by part, notes opening part to be arranged on base boss, notes coordinating with in clamp base and gland simultaneously; Part is put into heat treatment furnace together in company with fixture, carries out aging strengthening model by heat treating regime;
Equipment for Heating Processing: middle temperature vacuum oven
Charging temperature :≤150 DEG C
Heat-up rate: 300 ± 10 DEG C/h
Holding temperature: 620 ± 10 DEG C
Soaking time: 300min ~ 315min
The type of cooling: applying argon gas 0.2 ~ 0.4MPa is chilled to less than 80 DEG C and comes out of the stove.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112481476A (en) * | 2020-10-16 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Clamp for elastic ring solution aging heat treatment |
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