CN214684273U - Manufacturing device for soluble support for powder bed metal additive manufacturing - Google Patents
Manufacturing device for soluble support for powder bed metal additive manufacturing Download PDFInfo
- Publication number
- CN214684273U CN214684273U CN202120134779.1U CN202120134779U CN214684273U CN 214684273 U CN214684273 U CN 214684273U CN 202120134779 U CN202120134779 U CN 202120134779U CN 214684273 U CN214684273 U CN 214684273U
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- powder
- powder bed
- additive manufacturing
- liftable
- printing
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 239000000654 additive Substances 0.000 title claims abstract description 18
- 230000000996 additive effect Effects 0.000 title claims abstract description 18
- 238000007639 printing Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000005245 sintering Methods 0.000 claims abstract description 7
- 239000007767 bonding agent Substances 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims description 28
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 238000007493 shaping process Methods 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 5
- 239000011230 binding agent Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
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- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
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- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
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Abstract
The utility model discloses a manufacturing device of soluble support for powder bed metal additive manufacturing, which comprises a liftable printing platform and a liftable powder storage platform, wherein the liftable printing platform is provided with a part forming powder bed, the liftable powder storage platform is provided with a powder storage chamber, the powder storage chamber is provided with a base plate, the base plate is provided with a powder paving mechanism, the base plate is connected with the part forming powder bed, a bonding agent printing mechanism for bonding the forming support structure is arranged above the part forming powder bed, and a light source generating mechanism for sintering part bodies is arranged above the bonding agent printing mechanism, so that the utility model not only retains the advantages of high precision, high complexity and the like of the common powder bed fusion additive manufacturing process, but also greatly reduces the time for removing the support by post-treatment, effectively reduces the overall cost of metal additive manufacturing, and realizes the rapid removal of the support of metal additive manufacturing parts, the production efficiency of additive manufacturing is greatly improved.
Description
Technical Field
The utility model relates to a metal vibration material disk field especially relates to a manufacturing installation that is used for soluble support of powder bed metal vibration material disk.
Background
Additive manufacturing is also called 3D printing and is a technology for quickly forming parts. In recent years, additive manufacturing techniques have received great attention in the industry, mainly due to a series of advantages that cannot be achieved by conventional manufacturing techniques, such as rapid prototyping, environmental friendliness, high automation and digitization, low material waste, and so on. The metal additive manufacturing technology is also rapidly developed and widely applied to high-end application occasions such as national defense, aviation, energy sources and the like. At present, the mainstream industrial metal additive manufacturing technology is mainly a high-energy beam powder bed fusion technology, mainly because of the advantages of complex part forming capability, near-zero porosity, excellent mechanical property and the like. However, one important reason that hinders the large-scale industrial application of the powder bed fusion technique is that the support structure is difficult to remove. The printing of the supporting structure is an inevitable link in the powder bed fusion additive manufacturing process, and the supporting structure has the function of heavily supporting solid metal parts in a printing bin and preventing the solid parts from collapsing, deforming and the like due to gravity.
Statistically, 95% of metal additive manufactured parts require a support structure. The cost of manpower and time to remove the support is one of the major costs of metal additive manufacturing, often exceeding 40% of the total cost. For complex parts or tiny parts containing a large number of cantilever structures, the process of removing the support is more complicated, and the cost is higher; more importantly, for complex parts containing complex internal flow channels and closed inner cavities, the supporting structure cannot be removed, so that the performance of the parts is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the technical problem who exists among the prior art, provide a manufacturing installation that is used for soluble support of powder bed metal vibration material disk.
In order to achieve the above purpose, the utility model provides a technical scheme is: the utility model provides a manufacturing installation that is used for soluble support of powder bed metal vibration material disk, stores up the powder platform including liftable print platform and liftable, the liftable is printed and is provided with part shaping powder bed on the platform, the liftable is stored up and is provided with on the powder platform and stores up the powder room, it is provided with the base plate on the powder room to store up, be provided with on the base plate and spread powder mechanism, the base plate with part shaping powder bed is connected, part shaping powder bed top is provided with the adhesive print mechanism that is used for bonding shaping bearing structure, adhesive print mechanism top is provided with the light source emergence mechanism that is used for sintering the part entity.
Preferably, the adhesive printing mechanism comprises an adhesive printing guide rail and an adhesive container, wherein an adhesive jetting printing head is arranged on the adhesive printing guide rail, and the adhesive jetting printing head is connected with the adhesive container.
Preferably, the light source generating mechanism comprises a high-energy light source generator and a light beam guiding device, and both the high-energy light source generating device and the light beam guiding device are arranged on the frame.
Preferably, the substrate is made of a nickel alloy metal material, and the surface of the substrate is subjected to coarse sand blasting or roughening treatment.
The utility model discloses beneficial effect: the support structure in the utility model is solidified by the binder, does not produce compact metal fusion, but has certain strength, which can play a supporting role and prevent collapse and part displacement in the sintering process; after printing is completed, the support structure cured with the binder can be removed using a binder removal process; the utility model discloses not only remain the high accuracy that ordinary powder bed fuses vibration material disk manufacturing process, advantages such as high complexity, simultaneously very big reduction the aftertreatment get rid of the time of support again, effectively reduced the overall cost that metal vibration material disk made, realized that metal vibration material disk makes the part and get rid of the support fast, very big improvement vibration material disk's production efficiency.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.
FIG. 1 is a schematic diagram of the overall structure of the preferred embodiment of the present invention;
fig. 2 is a schematic flow chart of the preferred embodiment of the present invention.
The attached drawings are marked as follows:
1-lifting printing platform 2-lifting powder storage platform 3-base plate 4-part forming powder bed 5-powder laying mechanism 6-adhesive printing guide rail 7-adhesive jet printing head 8-light beam guiding device 9-high-energy light source generator 10-adhesive container.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1-2, the utility model discloses a preferred embodiment, a manufacturing installation that is used for soluble support of powder bed metal vibration material disk, including printing the shaping storehouse, it stores up powder platform 2 to be provided with liftable print platform 1 and liftable in the shaping storehouse to print, be provided with part shaping powder bed 4 on the liftable print platform 1, liftable store up and be provided with on the powder platform 2 and store up powder room 11, store up and be provided with base plate 3 on the powder room 11, be provided with shop's powder mechanism 5 on the base plate 3, shop's powder mechanism 5 includes the scraper etc., base plate 3 with part shaping powder bed 4 is connected, part shaping powder bed 4 top is provided with the bonding agent print mechanism who is used for bonding shaping bearing structure, bonding agent print mechanism top is provided with the high energy light source who is used for sintering the part entity and takes place the mechanism.
The utility model provides a detailed step does:
a. the part digital model generates a supporting structure by slicing software, automatically generates a plurality of two-dimensional slices and generates a processing code, wherein a high-energy light beam scanning control code is generated for a part solid part, a binder spraying control code is generated for a supporting part, and the set layer thickness is 30 micrometers;
b. installing the substrate 3 in a printing forming bin and then preheating to 150 ℃;
c. and filling protective gas argon into the printing forming bin until the oxygen content is lower than 0.4%. Continuous atmosphere circulation and constant protective gas components are ensured in the printing and forming bin, and the protective gas components are used for eliminating binder volatile impurities generated by laser sintering;
d. the powder paving mechanism 5 paves a thin layer of metal powder layer by layer in the printing and molding bin;
e. scanning the two-dimensional slice section of the layer by using a laser beam to generate a compact fusion layer, and setting the laser power of an entity part to be 300 watts, the scanning speed to be 2 meters per second, the laser power of an outline area to be 100 watts and the scanning speed to be 2 meters per second;
f. the binder jet printing head 7 repeatedly moves along the X-axis and Y-axis binder printing guide rails 6, and sprays small binder droplets at corresponding supporting positions to solidify metal powder; the spraying speed of the adhesive is controlled to be 0.3 milligram per square centimeter, and the temperature of an adhesive spray head is controlled to be 150-200 ℃;
g. the printed substrate 3 descends by 30 microns, and a scraper in the powder spreading mechanism 5 is used for spreading powder on the working surface once;
h. fully automatically repeating the steps d-g until the part is finally molded;
i. taking out the molded part from the printing molding bin, and quickly and manually removing the support;
J. finally, the metal powder is placed in an organic solvent to dissolve residual binder, the inner structure support which is difficult to process is broken down, and the metal powder is dried, screened, recycled and subjected to necessary surface treatment on the processed parts.
The powder material in the utility model is gas atomization powder with the grain diameter of 15-55 microns, the used high-energy beam is fiber laser, the maximum power of the laser is 400W, the light beam is Gaussian energy distribution with the diameter of about 0.05 mm,
in the utility model, the metal powder consumed by the printing support structure is recycled, and the removed support structure can effectively recycle the metal powder after the treatment processes of degreasing, cleaning, drying, screening and the like, thereby reducing waste and pollution; after the part is printed, a subsequent sintering process is not needed, the supporting structure can be easily removed through a degreasing method, only a compact high-energy-beam sintered part entity is left, the surface quality of the part is high, the hanging or inner hole part does not collapse, the machining precision is high, and the microstructure is compact and free of pores.
The utility model discloses in, the part entity is by laser sintering shaping, and bearing structure sprays solidification shaping by the binder, and all operations are accomplished by control software and numerical control are automatic, until the complete complicated metal component of shaping. Because the supporting structure is solidified by the binder, no dense metal fusion is generated, but the supporting structure has certain strength and can play a supporting role to prevent collapse and part displacement in the sintering process; after printing is completed, the support structure cured with the binder can be removed using a binder removal process; the utility model discloses not only remain the high accuracy that ordinary powder bed fuses vibration material disk manufacturing process, advantages such as high complexity, very big reduction the aftertreatment simultaneously and got rid of the time of support again, effectively reduced the overall cost that metal vibration material disk made.
The utility model discloses having combined high energy light beam powder bed to fuse and binder to spray printing technology, realized that metal vibration material disk part gets rid of the support fast, very big improvement vibration material disk's production efficiency, reduction in production cost.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
in this embodiment, the adhesive printing mechanism includes an adhesive printing guide rail 6 and an adhesive container 10, an adhesive ejection print head 7 is disposed on the adhesive printing guide rail 6, and the adhesive ejection print head 7 is connected to the adhesive container 10; the binder container 10 is used for storing metal powder binder, and the binder has a composition consistent with that of a binder material commonly used for metal powder injection molding, and is usually ethylene-vinyl acetate copolymer, isotactic polypropylene and/or high-density polyethylene and the like; according to the processing code, liquid binder glue is sprayed from the binder spray printing head 7 in the designated support structure area, deposited on the part forming powder bed 4 and binds the powder to form a loose but strong support structure, and then liquid binder particles are selectively sprayed on the part forming powder bed 4 by the binder spray printing head 7 for solidifying the cross section of the support structure.
In this embodiment, the light source generating mechanism includes a high-energy light source generator 9 and a light beam guiding device 8, the high-energy light source generator 9 and the light beam guiding device 8 are both disposed on the frame, the high-energy light source generator 9 can generate high-energy light sources such as laser or electron beams, and then the light beam guiding device 8 selectively scans, sinters and prints the part entity in the part molding powder bed 4 through the control path of the laser or electron beams, and in addition, the support structure can be reinforced by using high-energy light beams (such as laser or ultraviolet light).
Specifically, the frame is a universal standard component or a component known to those skilled in the art, and the structure and principle of the frame can be known to those skilled in the art through a technical manual or through a routine experimental method, and the frame can be flexibly selected by those skilled in the art as required, and will not be described in detail herein
In this embodiment, the substrate 3 is made of a nickel alloy metal material, and the surface of the substrate 3 is subjected to rough sand blasting or roughening treatment, so that metal powder can be tightly combined with the substrate 3 under the action of a binder, the substrate 3 is prevented from being separated in the printing process, and the working efficiency can be improved.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.
Claims (4)
1. A manufacturing installation that is used for soluble support of powder bed metal additive manufacturing, includes printing the shaping storehouse, its characterized in that: but it stores up powder platform (2) to be provided with liftable print platform (1) and liftable in the printing shaping storehouse, but be provided with part shaping powder bed (4) on liftable print platform (1), but the liftable is provided with on storing up powder platform (2) and stores up powder room (11), it is provided with base plate (3) on powder room (11) to store up, be provided with on base plate (3) and spread powder mechanism (5), base plate (3) with part shaping powder bed (4) are connected, part shaping powder bed (4) top is provided with the bonding agent print mechanism that is used for bonding shaping bearing structure, bonding agent print mechanism top is provided with the high energy light source emergence mechanism that is used for sintering the part entity.
2. The apparatus of claim 1, wherein the apparatus is further configured to form a soluble support for additive manufacturing of powder bed metal, the apparatus further comprising: the adhesive printing mechanism comprises an adhesive printing guide rail (6) and an adhesive container (10), an adhesive jet printing head (7) is arranged on the adhesive printing guide rail (6), and the adhesive jet printing head (7) is connected with the adhesive container (10).
3. The apparatus of claim 1, wherein the apparatus is further configured to form a soluble support for additive manufacturing of powder bed metal, the apparatus further comprising: the light source generating mechanism comprises a high-energy light source generator (9) and a light beam guiding device (8), and the high-energy light source generator (9) and the light beam guiding device (8) are both arranged on the rack.
4. The apparatus of claim 1, wherein the apparatus is further configured to form a soluble support for additive manufacturing of powder bed metal, the apparatus further comprising: the substrate (3) is made of a nickel alloy metal material, and the surface of the substrate (3) is subjected to coarse sand blasting or roughening treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120134779.1U CN214684273U (en) | 2021-01-19 | 2021-01-19 | Manufacturing device for soluble support for powder bed metal additive manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120134779.1U CN214684273U (en) | 2021-01-19 | 2021-01-19 | Manufacturing device for soluble support for powder bed metal additive manufacturing |
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| Publication Number | Publication Date |
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| CN214684273U true CN214684273U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120134779.1U Expired - Fee Related CN214684273U (en) | 2021-01-19 | 2021-01-19 | Manufacturing device for soluble support for powder bed metal additive manufacturing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632950A (en) * | 2022-03-17 | 2022-06-17 | 潍柴动力股份有限公司 | Material-increasing and material-decreasing composite manufacturing method for engine cylinder block |
-
2021
- 2021-01-19 CN CN202120134779.1U patent/CN214684273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632950A (en) * | 2022-03-17 | 2022-06-17 | 潍柴动力股份有限公司 | Material-increasing and material-decreasing composite manufacturing method for engine cylinder block |
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Granted publication date: 20211112 |