CN106735204A - A kind of selective laser melting self- propagating manufacturing process - Google Patents
A kind of selective laser melting self- propagating manufacturing process Download PDFInfo
- Publication number
- CN106735204A CN106735204A CN201611115354.6A CN201611115354A CN106735204A CN 106735204 A CN106735204 A CN 106735204A CN 201611115354 A CN201611115354 A CN 201611115354A CN 106735204 A CN106735204 A CN 106735204A
- Authority
- CN
- China
- Prior art keywords
- propagating
- shaping
- selective laser
- mesh
- laser melting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008018 melting Effects 0.000 title claims abstract description 30
- 238000002844 melting Methods 0.000 title claims abstract description 30
- 230000001902 propagating effect Effects 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000007493 shaping process Methods 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 20
- 230000002787 reinforcement Effects 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 7
- 238000010146 3D printing Methods 0.000 description 6
- 238000005488 sandblasting Methods 0.000 description 6
- 239000003082 abrasive agent Substances 0.000 description 3
- 238000005422 blasting Methods 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- 125000000174 L-prolyl group Chemical group [H]N1C([H])([H])C([H])([H])C([H])([H])[C@@]1([H])C(*)=O 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical group CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011156 metal matrix composite Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 238000010099 solid forming Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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]
-
- B22F1/0003—
-
- 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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- 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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/362—Process control of energy beam parameters for preheating
-
- 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
- B22F10/80—Data acquisition or data processing
-
- 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
-
- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/058—Mixtures of metal powder with non-metallic powder by reaction sintering (i.e. gasless reaction starting from a mixture of solid metal compounds)
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention proposes a kind of selective laser melting self- propagating manufacturing process, makes the powder of only laser scanning and can just react, and realizes the selective laser melting self- propagating shaping of part；Completed according to following steps：The threedimensional model that 3-D scanning sets up part is carried out to the part for needing shaping using spatial digitizer, the threedimensional model of part is processed using Magics softwares, set the shaping direction of part, addition support and forming accuracy, slicing treatment is carried out to threedimensional model using Slice Software, threedimensional model is divided into multiple two-dimensional sections, data are passed into former control system, calculate shaping powder mixture ratio, calculate reaction institute's calorific requirement and heat release, different ratio shaping raw material powder is mixed, setting preheating temperature, laser power, the technological parameters such as sweep speed, open laser, carry out selective laser melting self- propagating shaping, formation of parts is post-processed, prepare the excellent metal-base composites of structure property.
Description
Technical field
The invention belongs to 3D printing increases material manufacturing technology field, and in particular to a kind of selective laser melting self- propagating shaping
Method.
Background technology
3D printing（Increasing material manufacturing）Technology is to manufacture entity using the method that material successively adds up by CAD design datas
The technology of part, 3D printing technique is related to CAD/CAM, mechanical engineering, Layered Manufacturing Technology, laser technology, Numeric Control Technology, precision
The multiple subject such as Servo Drive Technology's and new material technology.3D printings are not required to cut material, are also not required to mould, can make in batches
Make, can also remote control, be particularly suited for baroque part, manufacturing speed is fast, with short production cycle, reduce development cost and
Risk, it is considered to be the third time industrial revolution.Typical 3D printing technique mainly has at present：Selective laser sintering, selectivity
Laser fusion, photocuring solid forming, Fused Deposition Modeling etc..Metal parts selective laser melting is configured to whole 3D printing
Forward position and most potential technology the most in system, are the important development directions of advanced manufacturing technology.Selective laser melting into
Shape general principle is：First design the three of part using 3D sculpting softwares such as Pro/e, UG, SolidWorks on computers
Dimension physical model, then carries out slicing delamination to the threedimensional model, obtains the two-dimensional silhouette data in each section, and these data are led
Enter in the computer of quickly shaping device, computer drives laser fusion formation system to be swept according to the scan mode for setting
Shaping is retouched, 3 d part is progressively stacked into.
Metal-base composites is, with metal as matrix, reinforcement to be added toward metal, in addition to increasing its mechanical property,
Also have the advantages that heat conduction, conduction, wear-resisting, thermal coefficient of expansion are small and pollution-free simultaneously, be widely used in Aeronautics and Astronautics, military affairs
Deng field.Metal-base composites processing is relatively difficult, and especially complex-shaped part is even more and is difficult to.Selective laser melts
Changing forming technique can prepare complex-shaped metal-base composites part.Selective laser melting form metal based composites
During part, its technical process is：Prepare the raw material → preparation reinforcement → preparation reinforcement powder → reinforcement of reinforcement
Powder mixes → selective laser fusing shaping with metal dust.When preparing reinforcement, often various simple substance raw material are carried out
Mixing, carries out reaction preparation in high-temperature service, and this process needs to provide amount of heat, and preparation technology is complicated.It is prepared by reinforcement
, it is necessary to be made into the powder for being suitable to selective laser fusing shaping after good, the formed powder is relatively tight to granularity and circularity requirement, system
Standby technique and its complexity, or even be difficult to.During the fusing shaping of metal-base composites selective laser, laser power is larger, gold
Amount of heat is discharged in category process of setting, thermal loss is more.If the heat discharged during metal freezing is effectively utilized, it is used for
Prepare reinforcement, by reinforcement prepare and selective laser be fused into just as when carry out, not only reduce reinforcement preparation cost, and
And shorten to technological process：Raw material → selective laser fusing the shaping of reinforcement is prepared, metal-based compound material is greatly reduced
The preparation cost of material.
The content of the invention
To achieve these goals, the present invention proposes a kind of selective laser melting self- propagating manufacturing process.Self- propagating
Shaping is, from conduction, to make to produce chemical reactive synthesis new material between material using substance reaction heat.Selective laser
In fusing self- propagating forming process, if self-propagating reaction oneself can be carried out, formed powder will react completely, it is difficult to realize
The shaping of part.In order to avoid the heat that this problem, the powdered reaction institute's calorific requirement and reaction for first having to calculate heterogeneity are released
Amount, so as to by controlling moulding material composition, make its heat for reacting to realize self-propagating reaction, while according to result of calculation
Control laser launches the laser of different-energy, and making the powder of only laser scanning can just react, so as to realize part
Selective laser melting self- propagating shaping.
A kind of selective laser melting self- propagating manufacturing process of the present invention, specifically completes according to following steps：
The first step, the threedimensional model that 3-D scanning sets up part is carried out using spatial digitizer to the part for needing shaping, or
Engineering drawing according to part sets up the threedimensional model of part using 3 d modeling software.
Second step, is processed the threedimensional model of part using Magics softwares, sets shaping direction, the addition of part
Support and forming accuracy.
3rd step, slicing treatment is carried out using Slice Software to threedimensional model, is divided into multiple two dimensions to cut threedimensional model
Face, and data are passed into former control system.
4th step, calculates shaping powder mixture ratio, reaction institute's calorific requirement and heat release is calculated, by different ratio shaping raw material powder
Mixed.
The technological parameters such as the 5th step, setting preheating temperature, laser power, sweep speed.
6th step, opens laser, carries out selective laser melting self- propagating shaping.
7th step, post-processes to formation of parts, prepares the excellent metal-base composites of structure property.
According to the above method, when aluminum-based boron carbide composite selective laser melting self- propagating shapes, 200-300 mesh carbon
Powder mass fraction 0.1-0.3%, 200-300 mesh boron powder mass fraction 1-5%, remaining is 200-300 mesh aluminium powders, and laser power starts
It is 150W, reaction starts rear laser and is adjusted to 120W.Sweep speed is 8000mm/min.
According to the above method, when aluminium-based titanium carbide composite selective laser melting self- propagating shapes, 200-300 mesh carbon
Powder mass fraction 0.1-0.5%, 200-300 mesh titanium valve mass fraction 1-3%, 200-300 mesh magnesium powder quality 0.1-2%, remaining is
200-300 mesh aluminium powders, laser power starts to be 130W that reaction starts rear laser power and is adjusted to 100W.Sweep speed is
9000mm/min。
According to the above method, when iron-based carbonization titanium composite material selective laser melting self- propagating shapes, 200-300 mesh carbon
Powder mass fraction 0.1-0.2%, 200-300 mesh titanium valve mass fraction 1-10%, 200-300 mesh magnesium powder quality 1%, remaining is 200-
300 mesh iron powders, laser power starts to be 200W that reaction starts rear laser and is adjusted to 150W.Sweep speed is 9000mm/min.
The present invention has an advantageous effect in that compared with prior art：The heat discharged when this method is by metal freezing is abundant
Utilize, for preparing reinforcement, be effectively saved the energy.By reinforcement prepare with selective laser be fused into just as when carry out, province
Go that the operations such as the selective laser fusing special reinforcement powder of shaping are manufactured separately, shortened technological process, greatly reduced gold
The preparation cost of metal-matrix composite material part.The method can quickly prepare the excellent Metal Substrate of complex-shaped, structure property and answer
Condensation material.
Specific embodiment
Embodiment one：
A kind of selective laser melting self- propagating manufacturing process of the present invention, implements in the steps below：
The first step, the part shape of shaping is tubing, and size is：Internal diameter 100mm, external diameter 110mm, length 300mm.Utilize
SolidWorks softwares set up the threedimensional model of the part.
Second step, is processed the threedimensional model of part using Magics softwares, by part vertical display, part forming
Direction is set to vertical direction.Pipe edge chamfering is set as R0.5mm.Formation of parts surface three is checked using Magics softwares
Whether edged surface piece is correct, and part model tri patch is repaired with automatic repair function.According to the placing part feature,
Support should not be added, is directly formed.Forming accuracy is set to 0.1mm.
3rd step, slicing treatment is carried out to model using RP-Tool, and slice thickness is 0.01mm, the data mould that will be cut
Type imported into shaping computer.
4th step, calculates and shapes powder mixture ratio, 300 mesh aluminium powder mass fractions 95%, 300 mesh carbon dust mass fractions 0.2%,
300 mesh boron powder mass fractions 4.8%.Calculate the component powders reaction institute's calorific requirement and heat release.Then above-mentioned powder is mixed
Close, under vacuum, above-mentioned powder is mixed using three-dimensional material mixer, mixing time is 8 hours.
5th step, forming machine is loaded by mixed powder, sets basal plate preheating temperature as 150 DEG C, and preheating time is
30min.Laser power starts to be 150W that reaction starts rear laser and is adjusted to 120W.Sweep speed is 8000mm/min.
6th step, opens former master switch, carries out selective laser melting self- propagating shaping.
7th step, after part forming, carries out sandblasting post processing.The abrasive material of sandblasting is white fused alumina, and compressed air pressure is
3MPa, spray gun is apart from part 100mm.By after blasting treatment, piece surface finish reaches Ra6.3.
Embodiment two：
A kind of selective laser melting self- propagating manufacturing process of the present invention, implements in the steps below：
The first step, the part of shaping is hollow hemisphere cover, and size is：Internal diameter 70mm, external diameter 80mm.Using SolidWorks softwares
Set up the threedimensional model of the part.
Second step, is processed the threedimensional model of part using Magics softwares.Part level is put, half ball cover
Convex surface is upward.The hollow hemisphere cover is added and is supported, the supporting type is supported for thread form, a width of 0.1mm of tooth top, bottom of the tooth is a width of
0.9mm, space width is 0.1mm.Check whether formation of parts surface tri patch is correct using Magics softwares, and with repairing automatically
Multiple function is repaired to part model tri patch.Forming accuracy is set to 0.07mm.
3rd step, slicing treatment is carried out to model using RP-Tool, and slice thickness is 0.01mm, the data mould that will be cut
Type imported into shaping computer.
4th step, calculates and shapes powder mixture ratio, 200 mesh aluminium powder mass fractions 95%, 200 mesh carbon dust mass fractions 0.1%,
200 mesh titanium valve mass fractions 3%, 200 mesh magnesium powder quality 1.9%.Calculate the component powders reaction institute's calorific requirement and heat release.It is then right
Above-mentioned powder is mixed, and under vacuum, above-mentioned powder is mixed using three-dimensional material mixer, and mixing time is 6 small
When.
5th step, forming machine is loaded by mixed powder, sets basal plate preheating temperature as 200 DEG C, and preheating time is
20min.Laser power starts to be set as 130W that reaction starts rear laser power and is adjusted to 100W.Sweep speed is set as
9000mm/min。
6th step, opens former master switch, carries out selective laser melting self- propagating shaping.
7th step, after part forming, carries out sandblasting post processing.The abrasive material of sandblasting is diamond dust, and compressed air pressure is
2.5MPa, spray gun is apart from part 150mm.By after blasting treatment, piece surface finish reaches Ra6.3.
Embodiment three：
A kind of selective laser melting self- propagating manufacturing process of the present invention, implements in the steps below：
The first step, the part of shaping is cuboid, and size is：50mm long, 70mm wide, 50mm high.Using SolidWorks softwares
Set up the threedimensional model of the part.
Second step, is processed the threedimensional model of part using Magics softwares.Part level is put, bottom surface border
Size is 50mm × 70mm.The molder process is supported without addition.Check whether formation of parts surface tri patch is correct,
And part model tri patch is repaired with Magics softwares automatic repair function.Forming accuracy is set to 0.1mm.
3rd step, slicing treatment is carried out to model using RP-Tool, and slice thickness is 0.01mm, the data mould that will be cut
Type imported into shaping computer.
4th step, calculates and shapes powder mixture ratio, 300 mesh iron powder mass fractions 90%, 300 mesh carbon dust mass fractions 0.1%,
300 mesh titanium valve mass fractions 8.9%, 300 mesh magnesium powder quality 1%.Calculate the component powders reaction institute's calorific requirement and heat release.It is then right
Above-mentioned powder is mixed, and under vacuum, above-mentioned powder is mixed using three-dimensional material mixer, and mixing time is 10 small
When.
5th step, forming machine is loaded by mixed powder, sets basal plate preheating temperature as 200 DEG C, and preheating time is
20min.Laser power starts to be 200W that reaction starts rear laser and is adjusted to 100W.Sweep speed is 9000mm/min.
6th step, opens former master switch, carries out selective laser melting self- propagating shaping.
7th step, after part forming, carries out sandblasting post processing.The abrasive material of sandblasting is diamond dust, and compressed air pressure is
3MPa, spray gun is apart from part 100mm.By after blasting treatment, piece surface finish reaches Ra6.3.
The present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-described embodiment, at this
In the ken that field those of ordinary skill possesses, various changes can also be made on the premise of present inventive concept is not departed from
Change.
Claims (4)
1. a kind of selective laser melting self- propagating manufacturing process, it is characterised in that：The heat discharged during by metal freezing is used for
Prepare reinforcement, by reinforcement prepare and selective laser be fused into just as when carry out, specifically carry out in the steps below：
The first step, the threedimensional model that 3-D scanning sets up part is carried out using spatial digitizer to the part for needing shaping, or
Engineering drawing according to part sets up the threedimensional model of part using 3 d modeling software；
Second step, is processed the threedimensional model of part using Magics softwares, sets shaping direction, the addition support of part
With forming accuracy；
3rd step, slicing treatment is carried out using Slice Software to threedimensional model, and threedimensional model is divided into multiple two-dimensional sections, and
Data are passed into former control system；
4th step, calculates shaping powder mixture ratio, calculates reaction institute's calorific requirement and heat release, and different ratio shaping raw material powder is carried out
Mixing；
5th step, sets technological parameter, including preheating temperature, laser power, sweep speed；
6th step, opens laser, carries out selective laser melting self- propagating shaping；
7th step, post-processes to formation of parts, prepares the excellent metal-base composites of structure property.
2. a kind of selective laser melting self- propagating manufacturing process according to claim 1, it is characterised in that：Aluminium base is carbonized
When boron composite selective laser melting self- propagating shapes, 200-300 mesh carbon dust mass fraction 0.1-0.3%, 200-300 mesh
Boron powder mass fraction 1-5%, remaining is 200-300 mesh aluminium powders, and laser power starts to be 150W, and reaction starts rear laser power and adjusts
Whole is 120W, and sweep speed is 8000mm/min.
3. a kind of selective laser melting self- propagating manufacturing process according to claim 1, it is characterised in that：Aluminium base is carbonized
When titanium composite material selective laser melting self- propagating shapes, 200-300 mesh carbon dust mass fraction 0.1-0.5%, 200-300 mesh
Titanium valve mass fraction 1-3%, 200-300 mesh magnesium powder quality 0.1-2%, remaining be 200-300 mesh aluminium powders, laser power start for
130W, reaction starts rear laser power and is adjusted to 100W, and sweep speed is 9000mm/min.
4. a kind of selective laser melting self- propagating manufacturing process according to claim 1, it is characterised in that：Iron-based is carbonized
When titanium composite material selective laser melting self- propagating shapes, 200-300 mesh carbon dust mass fraction 0.1-0.2%, 200-300 mesh
Titanium valve mass fraction 1-10%, 200-300 mesh magnesium powder quality 1%, remaining is 200-300 mesh iron powders, and laser power starts to be 200W,
Reaction starts rear laser and is adjusted to 150W, and sweep speed is 9000mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115354.6A CN106735204A (en) | 2016-12-07 | 2016-12-07 | A kind of selective laser melting self- propagating manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115354.6A CN106735204A (en) | 2016-12-07 | 2016-12-07 | A kind of selective laser melting self- propagating manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106735204A true CN106735204A (en) | 2017-05-31 |
Family
ID=58874773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115354.6A Pending CN106735204A (en) | 2016-12-07 | 2016-12-07 | A kind of selective laser melting self- propagating manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106735204A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900332A (en) * | 2017-11-15 | 2018-04-13 | 成都优材科技有限公司 | Dentistry plants the 3D printing method of stent |
| CN112522546A (en) * | 2020-10-26 | 2021-03-19 | 中北大学 | Preparation of B by using SLM technology4Method for C reinforced aluminium base composite material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803348A (en) * | 2006-01-24 | 2006-07-19 | 华中科技大学 | Preparation method for quick preparing functional gradient material |
| CN104174845A (en) * | 2014-08-13 | 2014-12-03 | 杭州电子科技大学 | Selective laser melting forming method for preparing titanium alloy component |
| CN104368814A (en) * | 2014-11-11 | 2015-02-25 | 西安交通大学 | Method for directly molding high-entropy alloy turbine engine hot end component through laser metal |
| CN105033254A (en) * | 2015-07-29 | 2015-11-11 | 南京航空航天大学 | Method for manufacturing high-performance in-situ TiC reinforced titanium-based composite workpiece on basis of CNTs and laser additive manufacturing and processing technology |
| CN106064478A (en) * | 2016-06-29 | 2016-11-02 | 白嘉远 | A kind of selective laser sintering manufacturing process of hollow out bone injury protector |
-
2016
- 2016-12-07 CN CN201611115354.6A patent/CN106735204A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803348A (en) * | 2006-01-24 | 2006-07-19 | 华中科技大学 | Preparation method for quick preparing functional gradient material |
| CN104174845A (en) * | 2014-08-13 | 2014-12-03 | 杭州电子科技大学 | Selective laser melting forming method for preparing titanium alloy component |
| CN104368814A (en) * | 2014-11-11 | 2015-02-25 | 西安交通大学 | Method for directly molding high-entropy alloy turbine engine hot end component through laser metal |
| CN105033254A (en) * | 2015-07-29 | 2015-11-11 | 南京航空航天大学 | Method for manufacturing high-performance in-situ TiC reinforced titanium-based composite workpiece on basis of CNTs and laser additive manufacturing and processing technology |
| CN106064478A (en) * | 2016-06-29 | 2016-11-02 | 白嘉远 | A kind of selective laser sintering manufacturing process of hollow out bone injury protector |
Non-Patent Citations (1)
| Title |
|---|
| 庄洪宇等: "激光引燃自蔓延合成TiC／Al基复合材料研究", 《中国材料科技与设备》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900332A (en) * | 2017-11-15 | 2018-04-13 | 成都优材科技有限公司 | Dentistry plants the 3D printing method of stent |
| CN112522546A (en) * | 2020-10-26 | 2021-03-19 | 中北大学 | Preparation of B by using SLM technology4Method for C reinforced aluminium base composite material |
| CN112522546B (en) * | 2020-10-26 | 2022-02-08 | 中北大学 | Preparation of B by using SLM technology4Method for C reinforced aluminium base composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104385606A (en) | 3D printing forming method for composite part | |
| CN103817767A (en) | Method for manufacturing ceramic products with 3D printing technology | |
| CN100540185C (en) | Powder metallurgy rapid shaping manufacture method | |
| CN106001568A (en) | 3D printing integrated preparation method for metal dies of gradient materials | |
| CN101434026B (en) | High-melting metal arc spraying rapid die-manufacturing method | |
| CN104907492A (en) | Making method of surface double-walled hollow turbine blade | |
| CN101780544A (en) | Method for forming refractory metal parts by using laser | |
| CN103521769A (en) | Material increase manufacturing method based on high-speed spray forming of multi-material particles | |
| CN107745068B (en) | A kind of laser 3D printing precoated sand and preparation method thereof | |
| CN108101519A (en) | A kind of ceramic-mould preparation method for the shaping of parts with complex structures directional solidification | |
| CN108002842B (en) | Preparation method of porous silicon nitride part with complex shape | |
| CN104446392A (en) | Calcium-doped inorganic nanocomposite material for 3D printing and preparation method of calcium-doped inorganic nanocomposite material | |
| CN107790624A (en) | A kind of method that evaporative pattern is prepared using 3DP printing techniques | |
| CN106623924A (en) | Method for forming functionally graded material on basis of selection laser melted powder metallurgy | |
| CN103643067A (en) | Nanoscale silicon carbide reinforcing metal group composite material and preparation method thereof | |
| Parenti et al. | Implementation of hybrid additive manufacturing based on extrusion of feedstock and milling | |
| CN107574338A (en) | A kind of aluminum-base composite powder body material for increasing material manufacturing and preparation method thereof | |
| CN104191615A (en) | Preparation method of high-molecular polymer powder material applied to 3D printing | |
| CN106735204A (en) | A kind of selective laser melting self- propagating manufacturing process | |
| CN104446393A (en) | Yttrium-doped inorganic nanocomposite material for 3D printing and preparation method of yttrium-doped inorganic nanocomposite material | |
| Jiang et al. | Study on selective laser sintering of eucalyptus/PES blend and investment casting technology | |
| CN102212773A (en) | Method for rapidly manufacturing steel-base mould by thermal spraying | |
| CN107253861A (en) | A kind of method that SLS/CVI prepares high-strength high temperature-resistant SiC ceramic engine blade wheel | |
| CN1328216C (en) | Technological process of making silicon carbide ceramic part based on smelting deposition and fast forming techn | |
| CN110271122A (en) | A kind of preparation process that cast mineral mold duplicates |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |