CN109175376A - The post-processing approach of increasing material manufacturing titanium or titanium alloy part - Google Patents
The post-processing approach of increasing material manufacturing titanium or titanium alloy part Download PDFInfo
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- CN109175376A CN109175376A CN201811319227.7A CN201811319227A CN109175376A CN 109175376 A CN109175376 A CN 109175376A CN 201811319227 A CN201811319227 A CN 201811319227A CN 109175376 A CN109175376 A CN 109175376A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/64—Treatment of workpieces or articles after build-up by thermal means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/62—Treatment of workpieces or articles after build-up by chemical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a kind of post-processing approach of increasing material manufacturing titanium or titanium alloy part, especially a kind of post-processing approach for the increasing material manufacturing titanium or titanium alloy part for being related to metal material Field of Heat-treatment: the post-processing approach of the increasing material manufacturing titanium or titanium alloy part of the application, first the titanium of 3D printing or titanium alloy are heat-treated, then the titanium of 3D printing or titanium alloy are surface-treated.The post-processing approach of increasing material manufacturing titanium or titanium alloy part of the invention, which can improve the comprehensive mechanical property of titanium or titanium alloy part and generate thermal deformation, adversely affects parts size precision.
Description
Technical field
The present invention relates to a kind of post-processing approach of increasing material manufacturing titanium or titanium alloy part, especially one kind is related to metal material
The post-processing approach of the increasing material manufacturing titanium or titanium alloy part of Field of Heat-treatment.
Background technique
Titanium alloy has the characteristics that relative density is small, specific strength is high and is widely used in aerospace field, is known as " too
Empty metal "；It has excellent resistance to corrosion, nonmagnetic etc. again, is a kind of outstanding ship structure material, is known as " sea
Foreign metal "；In recent years, with the continuous development of Ti industry, titanium alloy is widely applied in civil field, such as vapour
Vehicle, building, medicine, stationery sports goods etc. are known as " all-round metal ".With the continuous maturation of metal 3D printing technique, 3D
Printout has the characteristics that tiny crystal grain, even tissue, good mechanical performance, consistency are high, in manufacture small lot, complicated knot
It has a clear superiority when structure, shaped piece, infusibility difficulty workpiece, gradient/lattice structure material/part, more and more titanium alloy 3D
Printing product is applied to aerospace, medical treatment, in automobile manufacturing field.
But 3D printing complex process, it is more to the tissue and Performance Influence Factor of product, as there are hollow spheres, ellipse for powder
The factors such as circularity is low, granularity distribution is poor and 3D printing technological parameter mismatches will lead to the surface of printout and inside occurs
Micro-crack, therefore, even if conventional mechanical property of 3D printing part such as tensile strength, yield strength, toughness etc. can be more than forging
Level, but fatigue life is difficult to be more than that forging is horizontal, and this is also one of the bottleneck for limiting 3D printing part large-scale application.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind can improve the comprehensive mechanical property of titanium or titanium alloy part,
The post-processing approach for the increasing material manufacturing titanium or titanium alloy part that thermal deformation adversely affects parts size precision will not be generated again.
The present invention solves the post-processing approach of increasing material manufacturing titanium or titanium alloy part used by its technical problem, first beats 3D
The titanium or titanium alloy of print are heat-treated, then to 3D printing titanium or titanium alloy be surface-treated:
Further, carrying out in-situ immobilization processing to titanium or titanium alloy component using magnetic field and electric field.
Further, the titanium or titanium alloy part that 3D printing obtains is made annealing treatment, fixation rates and/
Or hip treatment, then it is surface-treated.
Further, the annealing region used for 550~1050 DEG C, heat preservation 1~10h, then furnace cooling or
Air cooling, overall process vacuum or high-purity argon gas protection.
Further, the solid solution aging technique used is 750~1050 DEG C of temperature, water cooling is dissolved after 0.5~5h to room
Then temperature is warming up to 500~700 DEG C and keeps the temperature 1~10h, furnace cooling or air cooling, overall process vacuum or high-purity argon gas protection.
Further, after the heat and other static pressuring processes used is jacket processing, 100~200MPa of pressure, temperature 550~
1250 DEG C, 1~5h of heat-insulation pressure keeping, transmission medium is inert gas.
Further, the surface treatment method includes comprising blasting treatment, bead, machining, surface polishing
And chemical treatment.
Further, applying electromagnetic pulse to it after completion titanium or titanium alloy are surface-treated.
Further, first applying 0~100 magnetic field impulse effect, then apply 0~100 electric pulse, magnetic field impulse and electricity
Pulse is alternately implemented after being respectively continuously finished 1~50 impulse action, or reuses another after individually completing a field processing
It is handled.
Further, the magnetic field strength is 0~5T, magnetic impulse frequencies are 1~50Hz, after the effect of each magnetic field impulse between
Have a rest 0.05~5s；The current density of the impulse electric field is 1~104A/mm2, the time of single electric pulse effect is 0.005~
0.5s, 0.05~5s of interval after each electric pulse effect.
The beneficial effects of the present invention are: the present invention is obtained by post-process increasing material manufacturing titanium or titanium alloy part
Part has satisfactory dimensional accuracy, surface smoothness, and comprehensive mechanical property is improved, especially the tired longevity of part
Life is improved significantly.Increasing material manufacturing titanium or titanium alloy part of the invention is especially suitable for aerospace field, and the zero of post-processing
Part complexity with higher, dimensional accuracy, surface smoothness and comprehensive mechanical property.
Specific embodiment
The present invention solves the post-processing approach of increasing material manufacturing titanium or titanium alloy part used by its technical problem, first beats 3D
The titanium or titanium alloy of print are heat-treated, then to 3D printing titanium or titanium alloy be surface-treated, the application with
0.1~200 μm of titanium or titanium alloy spherical powder be raw material, by titanium or titanium alloy part model stl file imported into 3D printing at
In shape equipment, design, slicing treatment are supported to model using 3D printing pre-processing software, and select corresponding moulding material
3D printing is completed with fast shaping technology, takes out titanium or titanium alloy part.The titanium or titanium alloy spherical powder used for TA0~TA4,
TB series (such as Ti-4Al-16Mo-3Nb), TC series (such as Ti6Al4V), TiAl alloy (Ti47Al2Nb).The choosing of use
Selecting property laser sintering process are as follows: 10~100 μm of powder thickness, 10~200 μm of spot size, 0.1~10m/ of laser scanning speed
S, 50~500W of laser power, oxygen content are lower than 1.0%, 30~550 DEG C of basal plate preheating temperature.The Process of Powder Feeding Laser Cladding of use
Printing technology parameter are as follows: 200~2000W of laser power, 0.1~1.5mm of spot diameter, cladding 100~1500mm/min of rate,
0.5~2.5rpm/min of powder feeding rate, 2~20L/min of powder feeding gas, 5~25L/min of protective gas.The electron beam constituency of use
Melt forming technology are as follows: 20~200 μm of powder thickness, 0.1~1.0mm of lectron beam spot diameter, 1~16000m/ of scanning speed
S, 50~5000W of beam power, 500~1200 DEG C of preheating temperature, 5 × 10-2Pa of working vacuum degree.The increasing forging of use subtracts multiple
Close fabrication process parameters are as follows: 500~2500W of laser power, 0.5~5mm of spot diameter, cladding 250~2500mm/min of rate,
0.5~5.5rpm/min of powder feeding rate, 5~50L/min of powder feeding gas, 5~25L/min of protective gas.The application is to 3D printing
Titanium or titanium alloy be heat-treated and be surface-treated the titanium for making 3D printing or titanium alloy ovality improve, granularity point
With the titanium or titanium alloy for uniformly rationally, making 3D printing, not only tensile strength, yield strength, toughness are enough more than forging level,
And its fatigue life can also be more than that forging is horizontal.The titanium of 3D printing or titanium alloy are carried out at surface after heat treatment
Reason, can significantly improve the dimensional accuracy, surface smoothness and surface hardness of 3D printing part, make the precision and mechanical property of printout
It can be further enhanced.
In addition, the application also carries out in-situ immobilization processing to titanium or titanium alloy component using magnetic field and electric field.The present invention will
Part is placed in the action space of magnetic field and electric field, does not need the input of extra media He other energy.Due to magnetic field and electric field
Technique is controllable, while the Local Instantaneous high temperature for realizing defect area repairs defect, will not generate a large amount of thermal conductivity and cause part
Dimensional accuracy affects adversely.The present invention has by carrying out the increasing material manufacturing titanium or titanium alloy part to post-process part obtained
Satisfactory dimensional accuracy, surface smoothness, internal flaw obtain in-situ immobilization, and comprehensive mechanical property is improved, especially
It is to be improved significantly fatigue life of part.
The titanium or titanium alloy part that 3D printing obtains is made annealing treatment, at fixation rates, and/or hot isostatic pressing
Reason, is then surface-treated.Carrying out aforementioned processing to the titanium or titanium alloy part obtained to 3D printing can be further improved
The impact flexibility of printout, tensile strength, elongation percentage are and fatigue limit.
The annealing region used is 550~1050 DEG C, 1~10h of heat preservation, then furnace cooling or air cooling, overall process
Vacuum or high-purity argon gas protection.It can be further improved the impact flexibility of printout using aforementioned parameter and annealing, tension is strong
Degree, elongation percentage are and fatigue limit.
The solid solution aging technique used is 750~1050 DEG C of temperature, and after being dissolved 0.5~5h then water cooling heats up to room temperature
To 500~700 DEG C and keep the temperature 1~10h, furnace cooling or air cooling, overall process vacuum or high-purity argon gas protection.Using aforementioned annealing
Technological parameter can be further improved the impact flexibility of printout, tensile strength, and elongation percentage is and fatigue limit.
After the heat and other static pressuring processes used is jacket processing, 100~200MPa of pressure, 550~1250 DEG C of temperature, heat preservation is protected
1~5h is pressed, transmission medium is inert gas.The impact that can be further improved printout using aforementioned parameter and annealing is tough
Property, tensile strength, elongation percentage are and fatigue limit.
The surface treatment method includes comprising blasting treatment, bead, machining, surface polishing and chemical treatment.
The dimensional accuracy, surface smoothness and wearability of printout can be improved using aforementioned surfaces processing method.
Electromagnetic pulse is applied to it after completion titanium or titanium alloy are surface-treated.Electromagnetic pulse is a kind of alternation
Electromagnetic field, action time is short, and frequency is high, allows to act on the electromagnetic field intensity on printout and accurately controls, and beats to improve
The effect of printed document in-situ immobilization.
First apply 0~100 magnetic field impulse effect, then apply 0~100 electric pulse, magnetic field impulse and electric pulse are each continuous
Alternately implement after completing 1~50 impulse action, or individually reuses another after one field processing of completion and handled.This
Application uses the double action of magnetic field impulse and electric pulse, can be further improved the effect of in-situ immobilization.
The magnetic field strength is 0~5T, and magnetic impulse frequencies are 1~50Hz, 0.05~5s of interval after each magnetic field impulse effect；
The current density of the impulse electric field is 1~104A/mm2, and the time of single electric pulse effect is 0.005~0.5s, Mei Ge electricity
0.05~5s of interval after impulse action.Realize that the Local Instantaneous high temperature of defect area repairs defect using aforementioned electromagnetic field parameters
Meanwhile a large amount of thermal conductivity will not be generated, parts size precision is caused to affect adversely.
Embodiment 1
The threedimensional model of titanium alloy is exported as into stl format file, carries software using Selective Laser Sintering
Packet or Magics data processing software control model data processing → formulation printing regulation → importing laser beam 3D printer
Computer → setting printing technology parameter starts printing → heat treatment and surface treatment → Electromagnetic Treatment → final part.It is with partial size
The Ti6Al4V powder particle of 15~53 μm of inert gas atomizer method production is raw material, is packed into foot before printing in 3D printer
The powder of amount.Starting printer starts to process.Wherein printing technology parameter are as follows: 40 μm of powder thickness, swashs at 100 μm of spot size
Optical power 400W, oxygen content are lower than 500ppm, 150 DEG C of basal plate preheating temperature.Printing diameter is 100mm, and length is 150mm's
Alloy complex structural member.After the completion of printing, substrate and part are placed in vacuum heat treatment furnace together and carry out stress relief annealing process,
Making annealing treatment temperature is 800 ± 10 DEG C, and working vacuum degree is 8 × 10-4Pa, soaking time 6h.Then substrate, support are removed,
Turning is carried out to surface using mach mode, reaches dimensional accuracy and surface smoothness requirements.Part is placed in electromagnetic field
Excitation apparatus, while applying magnetic field impulse and electric pulse effect.Magnetic field impulse effect magnetic field strength be 2T, magnetic impulse frequencies 5Hz,
Interval 1s after each magnetic field impulse effect；The pulse current density of electric pulse effect is 50A/mm2, the time of single electric pulse effect
For 0.05s, interval 0.5s after each electric pulse effect, magnetic field and electric field are respectively continuously finished alternately implementation after 10 impulse actions.
Later average impact toughness is 77.9J/cm2 to titanium alloy made from this example after post treatment, than increasing material manufacturing at form
Average impact toughness 65.5J/cm2 improves 18.9%.
Embodiment 2
The document that the threedimensional model of titanium alloy is exported as to stl format, it is included using Process of Powder Feeding Laser Cladding printer
Model data slice → formulation is printed regulation → importing electron beam 3D printer by software package or Magics data processing software
Control computer → setting printing technology parameter starts printing → hip treatment and surface treatment → Electromagnetic Treatment → final zero
Part.The Ti6Al4V powder spheric granules of the rotary electrode method for being 50~150 μm using partial size production is beaten before printing in 3D as raw material
Enough powder are packed into print machine.Starting printer starts to process.Wherein printing technology parameter are as follows: laser power 200~
2000W, spot diameter 1mm, cladding rate 1000mm/min, powder feeding rate 1.5rpm/min, powder feeding gas 15L/min protect gas
Body 20L/min.Printing length and width dimensions is 50 × 20mm, is highly the titanium alloy component of 300mm, substrate and part are set together
Enter vacuum heat treatment furnace and carry out stress relief annealing process, annealing temperature is 800 ± 10 DEG C, and working vacuum degree is 8 × 10-
4Pa, soaking time 6h.Then substrate, support are removed.Hereafter hip treatment is carried out to part.Heat and other static pressuring processes are
After jacket processing, pressure 120MPa, 910 DEG C of temperature, heat-insulation pressure keeping 4h, transmission medium is inert gas.Using mach side
Formula carries out turning to surface, reaches dimensional accuracy and surface smoothness requirements.Part is placed in electric field excitation device, is applied simultaneously
Magnetic field impulse and electric pulse is added to act on.The magnetic field strength of magnetic field impulse effect is 2T, magnetic impulse frequencies 10Hz, each magnetic field impulse effect
Interval 1.5s afterwards；The pulse current density of electric pulse effect is 80A/mm2, and the time of single electric pulse effect is 0.1s, each
Interval 0.5s after electric pulse effect, magnetic field and electric field are alternately implemented after being respectively continuously finished 20 impulse actions.Titanium made from this example
The tensile strength of alloy part is 970 ± 50MPa, and elongation percentage is (14 ± 0.1) %, and fatigue limit is (540 ± 10) MPa,
Higher than increasing material manufacturing at form 950 ± 50MPa of tensile strength, elongation percentage (12 ± 0.1) %, fatigue limit (450 ± 10) MPa.
Embodiment 3
The document that the threedimensional model of titanium-aluminium alloy part is exported as to stl format is carried soft using electron beam melting printer
Model data slice → formulation is printed regulation → importing electron beam 3D printer control by part packet or Magics data processing software
Computer processed → setting printing technology parameter starts printing → hip treatment and surface treatment → Electromagnetic Treatment → final part.
The Ti48Al2Cr2Nb powder particle of the plasma atomization for being 50~105 μm using partial size production is raw material, in 3D before printing
Enough powder are packed into printer.Starting printer starts to process.Wherein printing technology parameter are as follows: 90 μm of powder thickness, electricity
Beamlet beam spot diameter, 0.4mm, scanning speed 1600m/s, beam power 3000W, 1000 DEG C of preheating temperature, working vacuum degree 5
×10-2Pa.Since electron beam has pre- heat function to part in electron beam melting forming process, most of thermal stress can be eliminated, because
After the completion of this printing, do not need to be heat-treated again.Printing length and width dimensions is 50 × 20mm, is highly the titanium-aluminium alloy leaf of 300mm
Blade after removal support, is used hip treatment by piece.Heat and other static pressuring processes are pressure 100MPa after jacket processing, temperature
1200 DEG C, heat-insulation pressure keeping 4.5h, transmission medium is inert gas.Then merging heating furnace keeps the temperature 2h progress at 1260 DEG C of temperature
Heat treatment.Turning is carried out to surface using mach mode, reaches dimensional accuracy and surface smoothness requirements.Part is placed in
Electric field excitation device, while applying magnetic field impulse and electric pulse effect.The magnetic field strength of magnetic field impulse effect is 2T, magnetic impulse frequencies
For 50Hz, interval 1s after each magnetic field impulse effect；The pulse current density of electric pulse effect is 100A/mm2, and single electric pulse is made
Time is 0.05s, interval 0.5s after the effect of each electric pulse, and magnetic field and electric field are handed over after being respectively continuously finished 5 impulse actions
For implementation.Later tensile strength is (480 ± 5) MPa ratio to increasing material manufacturing titanium aluminum alloy blades made from this example after post treatment
Increasing material manufacturing at low 30MPa of form or so, but elongation percentage be (1.5 ± 0.1) % than increasing material manufacturing at form (0.3 ± 0.1) %
Very big promotion is obtained.
Claims (10)
1. the post-processing approach of increasing material manufacturing titanium or titanium alloy part, it is characterised in that: first to the titanium of 3D printing or titanium alloy into
Row heat treatment, then to 3D printing titanium or titanium alloy be surface-treated.
2. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as described in claim 1, it is characterised in that: using magnetic field and
Electric field carries out in-situ immobilization processing to titanium or titanium alloy component.
3. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as described in claim 1, it is characterised in that: obtained to 3D printing
To titanium or titanium alloy part made annealing treatment, fixation rates, and/or hip treatment, then carry out at surface
Reason.
4. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as claimed in claim 3, it is characterised in that: the annealing of use
Temperature range is 550~1050 DEG C, keeps the temperature 1~10h, and then furnace cooling or air cooling, overall process vacuum or high-purity argon gas are protected.
5. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as claimed in claim 3, it is characterised in that: the solid solution of use
Aging technique is 750~1050 DEG C of temperature, and after being dissolved 0.5~5h then water cooling is warming up to 500~700 DEG C and keeps the temperature 1 to room temperature
~10h, furnace cooling or air cooling, overall process vacuum or high-purity argon gas protection.
6. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as claimed in claim 3, it is characterised in that: the heat etc. of use
After static pressure technique is jacket processing, 100~200MPa of pressure, 550~1250 DEG C of temperature, 1~5h of heat-insulation pressure keeping, transmission medium is
Inert gas.
7. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as described in claim 1, it is characterised in that: at the surface
Reason method includes comprising blasting treatment, bead, machining, surface polishing and chemical treatment.
8. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as claimed in claim 2, it is characterised in that: complete titanium or
Titanium alloy applies electromagnetic pulse to it after being surface-treated.
9. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as described in claim 1, it is characterised in that: first application 0~
100 magnetic field impulse effects, then apply 0~100 electric pulse, and magnetic field impulse and electric pulse are respectively continuously finished 1~50 pulse and make
Alternately implemented with rear, or individually reuses another after one field processing of completion and handled.
10. the post-processing approach of increasing material manufacturing titanium or titanium alloy part as described in claim 1, it is characterised in that: the magnetic field
Intensity is 0~5T, and magnetic impulse frequencies are 1~50Hz, 0.05~5s of interval after each magnetic field impulse effect；The electricity of the impulse electric field
Current density is 1~104A/mm2, and the time of single electric pulse effect is 0.005~0.5s, interval after each electric pulse effect
0.05~5s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319227.7A CN109175376A (en) | 2018-11-07 | 2018-11-07 | The post-processing approach of increasing material manufacturing titanium or titanium alloy part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811319227.7A CN109175376A (en) | 2018-11-07 | 2018-11-07 | The post-processing approach of increasing material manufacturing titanium or titanium alloy part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109175376A true CN109175376A (en) | 2019-01-11 |
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| CN113020624A (en) * | 2021-03-10 | 2021-06-25 | 西北工业大学 | Heat treatment method of laser stereo-forming TC4 titanium alloy |
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| CN113667915A (en) * | 2021-07-27 | 2021-11-19 | 四川大学 | Treatment method for improving fatigue life of titanium alloy by using pulsed magnetic field treatment |
| CN113634767A (en) * | 2021-08-16 | 2021-11-12 | 上海大学 | Heat treatment method for manufacturing double-phase titanium alloy through laser material increase |
| CN113941715A (en) * | 2021-09-15 | 2022-01-18 | 武汉理工大学 | Method for processing metal lattice structure material and application thereof |
| CN114101709A (en) * | 2021-11-26 | 2022-03-01 | 中国航发北京航空材料研究院 | Heat treatment method for manufacturing titanium alloy by casting-additive composite |
| CN114209460A (en) * | 2021-12-31 | 2022-03-22 | 成都贝施美生物科技有限公司 | Processing method and device of personalized base station |
| CN114574794A (en) * | 2022-03-01 | 2022-06-03 | 长沙理工大学 | Preparation process of medical beta titanium alloy composite structure material with ultrahigh plasticity |
| CN114635056A (en) * | 2022-05-17 | 2022-06-17 | 北京煜鼎增材制造研究院有限公司 | High-temperature high-strength titanium alloy and additive preparation method thereof |
| CN114635056B (en) * | 2022-05-17 | 2022-07-29 | 北京煜鼎增材制造研究院有限公司 | High-temperature high-strength titanium alloy and additive preparation method thereof |
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| CN114899413B (en) * | 2022-06-13 | 2024-01-30 | 中汽创智科技有限公司 | Porous titanium-nickel current collector, preparation method thereof and lithium battery |
| CN115074651A (en) * | 2022-06-21 | 2022-09-20 | 长沙理工大学 | Preparation process of high-strength industrial alpha + beta type titanium alloy composite structure material |
| CN115194180A (en) * | 2022-08-02 | 2022-10-18 | 暨南大学 | Heat treatment method for manufacturing titanium alloy structure through homogenized material increase |
| CN115194180B (en) * | 2022-08-02 | 2024-01-30 | 暨南大学 | Heat treatment method for homogenizing titanium alloy tissue produced by additive |
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