CN106180720B - It is a kind of that there is the metalwork laser gain material preparation method for optimizing netted inner structure - Google Patents
It is a kind of that there is the metalwork laser gain material preparation method for optimizing netted inner structure Download PDFInfo
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- CN106180720B CN106180720B CN201610529685.8A CN201610529685A CN106180720B CN 106180720 B CN106180720 B CN 106180720B CN 201610529685 A CN201610529685 A CN 201610529685A CN 106180720 B CN106180720 B CN 106180720B
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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
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
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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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- Materials Engineering (AREA)
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Abstract
The present invention relates to a kind of metalwork laser gain material preparation method for having and optimizing netted inner structure, the preparation method includes defining the form factor of netted inner structure, determines that the structural parameters of netted inner structure, the optimization method of netted inner structure, the processing of drip molding digital-to-analogue slicing delamination, the laser gain material manufacture of drip molding, the Non-Destructive Testing of network structure drip molding, post processing obtain final drip molding.The preparation method has easy to operate, dependable performance, and integrated cost is low, drip molding is in light weight, and surface is smooth, disclosure satisfy that requirement, improves the advantages that its service life, being capable of expanded application extensively.
Description
Technical field
The present invention relates to increasing material manufacturing forming technique field, more particularly to a kind of metalwork with the netted inner structure of optimization
Laser gain material preparation method.
Background technology
At present, metal increases material manufacturing technology is included using laser as energy beam and using electron beam as two kinds of energy beam.Wherein, it is sharp
It is that energy beam application is more universal with laser.Because increasing material manufacturing is successively stack shaping, therefore, manufactured part can be with
With internal structure, this is also one of important advantage of increases material manufacturing technology.In addition, in metalwork increases material manufacturing technology field
In, research is less in terms of the optimization for netted inner structure, and this aspect technical research is still immature.Thus propose a kind of with excellent
Change the manufacture of the metalwork of netted inner structure by with important Research Significance.
The content of the invention
It is an object of the invention to：A kind of metalwork laser gain material preparation method for having and optimizing netted inner structure is provided,
The preparation method has easy to operate, dependable performance, and integrated cost is low, drip molding is in light weight, and surface is smooth, disclosure satisfy that use
It is required that, improve the advantages that its service life, being capable of expanded application extensively.
In order to achieve the above object, the present invention adopts the following technical scheme that realization：
A kind of to have the metalwork laser gain material preparation method for optimizing netted inner structure, the preparation method includes following step
Suddenly：
1) according to the requirement of network structure inside metalwork, the form factor of its netted inner structure is defined, wherein for reality
The shape factor, three-dimensional regular be shaped as 3, two-dimentional regular shape be 2, one-dimensional regular shape be 1, complete irregular shape be 0,
For the void shape factor, three-dimensional regular be shaped as -3, two-dimentional regular shape be -2, one-dimensional regular shape be -1, it is completely random
Then shape is also 0；
2) according to the requirement of network structure inside metalwork, the structural parameters of network structure are determined, the structural parameters include：
Netted rule inside the grid number of lines on grid line density, unit length, metalwork on grid pad parameter, unit area
Area size, regular domain boundary dimensions, wherein, netted regular domain size is with the lattice point number in unit area inside metalwork
Represent, regular domain boundary dimensions is represented with the lattice point number in unit length；
3) according to the structural parameters requirement of network structure inside metalwork, it is determined that optimizing the method for netted inner structure, the party
Method includes any of locus enthesis, axial symmetry enthesis, rotational symmetry enthesis, direct stress direction enthesis side
Method；The described physical form factor takes positive number, and the void shape factor takes negative；
4) slicing delamination processing is carried out to the STL threedimensional models of metalwork using CAD 3D graphics software on computers,
The parameter of network structure inside metalwork and network structure is inputted into computer, thickness 0.3-3mm；Computer control system
The shower nozzle of system control 3D printer moves on the axle of X, Y, Z tri-, and movement locus is consistent with each slicing delamination figure；Reading in number
According to when, while read in grid pad parameter and the class data of the void shape factor two；Obtain X, Y-direction grid line number and hole line
Number；Wherein X grids line number is from 1 to X, step-length 1；X ' holes line number is from 1 to X ', step-length 1；The grid lines and X-direction of Y-direction
Same processing, the hole line in Y ' directions is same with X ' directions to be handled, and is completed first layer and is scanned after obtaining contour line, to first
The filling line of layer is scanned；Scanning until completing all slicing delaminations；
5) metal dust is subjected to full and uniform mixing, and mixed powder is placed on to 100-200 DEG C of drying baker
In carry out dry 1-1.5h processing；Composite powder after drying and processing is placed in the powder drum of 3D printer powder feeder give over to it is standby
With；The powder feeding rate and powder sending quantity of computer control system control 3D printer powder feeder shower nozzle, start laser and indifferent gas
Body protective gas feeder, selective laser fusing, selective laser sintering are carried out to the step section layering in the step and swashed
Light cladding deposition formation, form the stamped metal part with netted inner structure；
6) to above-mentioned steps 5) in stamped metal part carry out Non-Destructive Testing, the method for the wherein Non-Destructive Testing includes：Sweep
Moulding material fusing under path is retouched to observe with physical behavior during solidification；The three-dimensional of temperature field and residual stress field in scanning process
Analysis and display；Fusion of metal powder and Simulation of Solidification Process, and the mechanical performance of prediction drip molding；Drip molding mechanical performance
Comprehensive detection, while contrasted with simulation result；
7) above-mentioned steps 6 are completed) after, stamped metal part is post-processed to obtain final stamped metal part, according to metal
Part design requirement, the micro-structural that the post processing includes inside is finely cleared up, internal micro-structural carries out thermo-chemical treatment, physical thermal
One kind or combination in processing and four kinds of processing modes of blasting treatment；Wherein, micro-structural internally carries out thermo-chemical treatment
When, stamped metal part is placed in PH=6.1-6.9 sour environment and heated, heating-up temperature is 200-400 DEG C, during heating
Between be 1-2h so that it is 2-3 μm that the thin oxide film that the hole surface of internal microstructure is formed, which removes thickness,；Carrying out at physical thermal
During reason, stamped metal part is placed in vacuum environment and heated, heating-up temperature is 500-650 DEG C, heat time 2-4h；Carry out
During blasting treatment, the precision and surface roughness that make stamped metal part reach design requirement.
As the further optimization of above-mentioned technical proposal, a kind of described metalwork laser with the netted inner structure of optimization
Increase material preparation method, it is characterised in that：Above-mentioned steps 5) in the laser type that uses for carbon dioxide laser or optical fiber
Laser.
As the further optimization of above-mentioned technical proposal, a kind of metalwork laser with the netted inner structure of optimization increases
Material preparation method, it is characterised in that：Metal dust in described step 5) is one kind in Fe, Ni, Co, Zn, Al, Cr, Ti
Or combination.
Compared with metal increases material manufacturing technology in the prior art, had the following advantages that using the method for the present invention：
(1) the invention enables machine components to have a good method to reach lightweight, by new Element Design with
Manufacture, it is possible to so that the deadweight of plant equipment mitigates significantly.
(2) it by the netted inner structure of metal piece optimization, can make it that the stress distribution of inside parts is more reasonable, reduce
There is the possibility of micro-crack when in use in part.
(3) by the netted inner structure of metal piece optimization, it can cause part that there is more preferable comprehensive mechanical performance.
Brief description of the drawings
Accompanying drawing 1 has the metalwork laser gain material preparation method quick-reading flow sheets schematic diagram for optimizing netted inner structure to be a kind of.
Embodiment
1 couple of present invention is a kind of below in conjunction with the accompanying drawings, and there is the metalwork laser gain material preparation method for optimizing netted inner structure to make
Illustrate.
A kind of to have the metalwork laser gain material preparation method for optimizing netted inner structure, the preparation method includes following step
Suddenly：
1) according to the requirement of network structure inside metalwork, the form factor of its netted inner structure is defined, wherein for reality
The shape factor, three-dimensional regular be shaped as 3, two-dimentional regular shape be 2, one-dimensional regular shape be 1, complete irregular shape be 0,
For the void shape factor, three-dimensional regular be shaped as -3, two-dimentional regular shape be -2, one-dimensional regular shape be -1, it is completely random
Then shape is also 0；
2) according to the requirement of network structure inside metalwork, the structural parameters of network structure are determined, the structural parameters include：
Netted rule inside the grid number of lines on grid line density, unit length, metalwork on grid pad parameter, unit area
Area size, regular domain boundary dimensions, wherein, netted regular domain size is with the lattice point number in unit area inside metalwork
Represent, regular domain boundary dimensions is represented with the lattice point number in unit length；
3) according to the structural parameters requirement of network structure inside metalwork, it is determined that optimizing the method for netted inner structure, the party
Method includes any of locus enthesis, axial symmetry enthesis, rotational symmetry enthesis, direct stress direction enthesis side
Method；The described physical form factor takes positive number, and the void shape factor takes negative；
4) slicing delamination processing is carried out to the STL threedimensional models of metalwork using CAD 3D graphics software on computers,
The parameter of network structure inside metalwork and network structure is inputted into computer, thickness 0.3-3mm；Computer control system
The shower nozzle of system control 3D printer moves on the axle of X, Y, Z tri-, and movement locus is consistent with each slicing delamination figure；Reading in number
According to when, while read in grid pad parameter and the class data of the void shape factor two；Obtain X, Y-direction grid line number and hole line
Number；Wherein X grids line number is from 1 to X, step-length 1；X ' holes line number is from 1 to X ', step-length 1；The grid lines and X-direction of Y-direction
Same processing, the hole line in Y ' directions is same with X ' directions to be handled, and is completed first layer and is scanned after obtaining contour line, to first
The filling line of layer is scanned；Scanning until completing all slicing delaminations；
5) metal dust is subjected to full and uniform mixing, and mixed powder is placed on to 100-200 DEG C of drying baker
In carry out dry 1-1.5h processing；Composite powder after drying and processing is placed in the powder drum of 3D printer powder feeder give over to it is standby
With；The powder feeding rate and powder sending quantity of computer control system control 3D printer powder feeder shower nozzle, start laser and indifferent gas
Body protective gas feeder, selective laser fusing, selective laser sintering are carried out to the step section layering in the step and swashed
Light cladding deposition formation, form the stamped metal part with netted inner structure；
6) to above-mentioned steps 5) in stamped metal part carry out Non-Destructive Testing, the method for the wherein Non-Destructive Testing includes：Sweep
Moulding material fusing under path is retouched to observe with physical behavior during solidification；The three-dimensional of temperature field and residual stress field in scanning process
Analysis and display；Fusion of metal powder and Simulation of Solidification Process, and the mechanical performance of prediction drip molding；Drip molding mechanical performance
Comprehensive detection, while contrasted with simulation result；
7) above-mentioned steps 6 are completed) after, stamped metal part is post-processed to obtain final stamped metal part, according to metal
Part design requirement, the micro-structural that the post processing includes inside is finely cleared up, internal micro-structural carries out thermo-chemical treatment, physical thermal
One kind or combination in processing and four kinds of processing modes of blasting treatment；Wherein, micro-structural internally carries out thermo-chemical treatment
When, stamped metal part is placed in PH=6.1-6.9 sour environment and heated, heating-up temperature is 200-400 DEG C, during heating
Between be 1-2h so that it is 2-3 μm that the thin oxide film that the hole surface of internal microstructure is formed, which removes thickness,；Carrying out at physical thermal
During reason, stamped metal part is placed in vacuum environment and heated, heating-up temperature is 500-650 DEG C, heat time 2-4h；Carry out
During blasting treatment, the precision and surface roughness that make stamped metal part reach design requirement.
Above-mentioned steps 5) in the laser type that uses for carbon dioxide laser or optical fiber laser.Described step
5) metal dust in is one kind or combination in Fe, Ni, Co, Zn, Al, Cr, Ti.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to implementation here
Example, for those skilled in the art according to the announcement of the present invention, not departing from improvement that scope made and modification all should be
Within protection scope of the present invention.
Claims (3)
1. a kind of have the metalwork laser gain material preparation method for optimizing netted inner structure, it is characterised in that the preparation method bag
Include following steps：
1) according to the requirement of network structure inside metalwork, the form factor of its netted inner structure is defined, wherein for entity shape
The shape factor, three-dimensional regular be shaped as 3, two-dimentional regular shape be 2, one-dimensional regular shape be 1, complete irregular shape be 0, for
The void shape factor, three-dimensional regular be shaped as -3, two-dimentional regular shape be -2, one-dimensional regular shape be -1, complete random shape
Shape is also 0；
2) according to the requirement of network structure inside metalwork, the structural parameters of network structure are determined, the structural parameters include：Grid
Netted regular domain inside the grid number of lines on grid line density, unit length, metalwork on pad parameter, unit area
Size, regular domain boundary dimensions, wherein, netted regular domain size is with the lattice point number table in unit area inside metalwork
Show, regular domain boundary dimensions is represented with the lattice point number in unit length；
3) according to the structural parameters requirement of network structure inside metalwork, it is determined that optimize the method for netted inner structure, this method bag
Include any of locus enthesis, axial symmetry enthesis, rotational symmetry enthesis, direct stress direction enthesis method；
The described physical form factor takes positive number, and the void shape factor takes negative；
4) slicing delamination processing is carried out to the STL threedimensional models of metalwork using CAD 3D graphics software on computers, by gold
The structural parameters of network structure and network structure are inputted into computer inside category part, thickness 0.3-3mm；Computer control system
The shower nozzle of system control 3D printer moves on the axle of X, Y, Z tri-, and movement locus is consistent with each slicing delamination figure；It is defeated in parameter
It is fashionable, while read in grid pad parameter and the class data of the void shape factor two；Obtain X, Y-direction grid line number and hole line
Number；Wherein X grids line number is from 1 to X, step-length 1；X ' holes line number is from 1 to X ', step-length 1；The grid lines and X-direction of Y-direction
Same processing, the hole line in Y ' directions is same with X ' directions to be handled, and is completed first layer and is scanned to obtain contour line and then to first
The filling line of layer is scanned；Scanning until completing all slicing delaminations；
5) metal dust is subjected to full and uniform mixing, and mixed metal dust is placed on to 100-200 DEG C of drying baker
In carry out dry 1-1.5h processing；Metal dust after drying and processing is placed in the powder drum of 3D printer powder feeder give over to it is standby
With；The powder feeding rate and powder sending quantity of computer control system control 3D printer powder feeder shower nozzle, start laser and inertia guarantor
Protect gas feeder, foregoing slicing delamination is carried out selective laser fusing or selective laser sintering or Laser Clad Deposition into
Shape, form the stamped metal part with netted inner structure；
6) to above-mentioned steps 5) in stamped metal part carry out Non-Destructive Testing, the method for the wherein Non-Destructive Testing includes：Scan road
Moulding material fusing is observed with physical behavior during solidification under footpath；The three dimensional analysis of temperature field and residual stress field in scanning process
With display；Fusion of metal powder and Simulation of Solidification Process, and the mechanical performance of prediction drip molding；Drip molding mechanical performance integrates
Detection, while contrasted with simulation result；
7) above-mentioned steps 6 are completed) after, stamped metal part is post-processed to obtain final stamped metal part, set according to metalwork
Meter requires that the micro-structural that the post processing includes inside is finely cleared up, internal micro-structural carries out thermo-chemical treatment, physics heat treatment
With one kind in four kinds of processing modes of blasting treatment or combination；Wherein, will when micro-structural internally carries out thermo-chemical treatment
Stamped metal part is placed in pH=6.1-6.9 sour environment and heated, and heating-up temperature is 200-400 DEG C, and the heat time is
1-2h so that the thin oxide film that the hole surface of internal microstructure is formed removes, and thickness is 2-3 μm；Carrying out physics heat treatment
When, stamped metal part is placed in vacuum environment and heated, heating-up temperature is 500-650 DEG C, heat time 2-4h；Sprayed
During sand processing, the precision and surface roughness that make stamped metal part reach design requirement.
2. a kind of metalwork laser gain material preparation method with the netted inner structure of optimization according to claim 1, it is special
Sign is：Above-mentioned steps 5) in the laser type that uses for carbon dioxide laser or optical fiber laser.
3. a kind of metalwork laser gain material preparation method with the netted inner structure of optimization according to claim 1, it is special
Sign is：Metal dust in described step 5) is one kind or combination in Fe, Ni, Co, Zn, Al, Cr, Ti.
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| CN201610529685.8A CN106180720B (en) | 2016-07-07 | 2016-07-07 | It is a kind of that there is the metalwork laser gain material preparation method for optimizing netted inner structure |
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| US20190061234A1 (en) * | 2017-08-28 | 2019-02-28 | Harris Corporation | Method for making a metal isolator body and associated device including the same |
| CN109307613B (en) * | 2018-10-18 | 2021-07-02 | 中国石油天然气股份有限公司 | Method and device for preparing artificial rock core |
| DE102019206617B4 (en) * | 2019-05-08 | 2021-06-17 | Ford Global Technologies, Llc | Coupling device for the mechanical coupling of a leaf spring arrangement |
| CN111069604A (en) * | 2019-12-09 | 2020-04-28 | 深圳市裕展精密科技有限公司 | Metal part, metal product, metal part preparation method and metal product preparation method |
| CN111958128B (en) * | 2020-08-11 | 2022-05-06 | 无锡市大德汽车部件科技有限公司 | Processing method of bearing base plate |
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| IT1290210B1 (en) * | 1997-01-29 | 1998-10-22 | Pirelli | METHOD FOR THE PRODUCTION OF TIRES, FOR THE REALIZATION OF VULCANIZATION MOLDS FOR SAID TIRES, TIRES AND MOLDS SO |
| EP2700459B1 (en) * | 2012-08-21 | 2019-10-02 | Ansaldo Energia IP UK Limited | Method for manufacturing a three-dimensional article |
| DE102013203936A1 (en) * | 2013-03-07 | 2014-09-11 | Airbus Operations Gmbh | Generative layer building method for producing a three-dimensional object and three-dimensional object |
| US9399257B2 (en) * | 2014-04-16 | 2016-07-26 | Honeywell International Inc. | Methods for forming ceramic reinforced titanium alloys |
| CN103978690B (en) * | 2014-05-28 | 2016-05-11 | 山东大学 | A kind of internal structure of body optimization method of printing towards 3D |
| US9757802B2 (en) * | 2014-06-30 | 2017-09-12 | General Electric Company | Additive manufacturing methods and systems with fiber reinforcement |
| CN104985183B (en) * | 2015-06-12 | 2017-10-24 | 华南协同创新研究院 | A kind of low elastic modulus titanium-based jawbone implant and preparation method thereof |
| CN105499575B (en) * | 2015-12-20 | 2017-07-07 | 北京工业大学 | A kind of design and preparation method of perforated grill structural material |
| CN105537589B (en) * | 2016-01-28 | 2018-12-25 | 佛山市安齿生物科技有限公司 | A kind of SLM molding surface treatment method of titanium implant |
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Address after: 621000 Sichuan city of Mianyang province high tech Zone Puming South East No. 133 Applicant after: Sichuan Sanyang laser material manufacturing technology Co., Ltd. Address before: 621000 Sichuan city of Mianyang province high tech Zone Puming South East No. 133 Applicant before: Sichuan Yongnian Sanyang additive manufacturing technology Co. Ltd. |
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