CN106735212B - 3D printing integrative-structure is vented mold insert mode method and exhaust mold insert mode - Google Patents

3D printing integrative-structure is vented mold insert mode method and exhaust mold insert mode Download PDF

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Publication number
CN106735212B
CN106735212B CN201611187874.8A CN201611187874A CN106735212B CN 106735212 B CN106735212 B CN 106735212B CN 201611187874 A CN201611187874 A CN 201611187874A CN 106735212 B CN106735212 B CN 106735212B
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mold insert
laser beam
mode
vented
laser
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CN106735212A (en
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向绪平
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Dongguan Cangming 3d Tech Co Ltd
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Dongguan Cangming 3d Tech Co Ltd
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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
    • 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
    • B22F10/10—Formation of a green body
    • 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
    • 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
    • B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/34—Moulds having venting means
    • B29C45/345—Moulds having venting means using a porous mould wall or a part thereof, e.g. made of sintered metal
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B33Y80/00—Products made by additive manufacturing
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of 3D printing integrative-structure to be vented mold insert mode method, it comprises the following steps：(1) software is aided in establish three-dimensional modeling model of the mode of integrative-structure with being vented mold insert by CAD, exhaust mold insert is located among mode；(2) three-dimensional modeling model is modeled by CAD and hierarchy slicing software processing, acquisition mode and each layer data being vented needed for the 3D printer of mold insert, each layer data includes the laser sintered region of mode and the laser sintered region of exhaust mold insert；Each layer data is directed into 3D printer, and the laser sintered region of mode and the sweep parameter for being vented the laser sintered region of mold insert are set respectively in 3D printer；(3) successively scanned according to each layer data of laser scanning, the laser sintered region of mode forms the mode of compact texture, is vented exhaust mold insert of the laser sintered region of mold insert formed with multiple gap pore structures, and exhaust mold insert is structure as a whole with mode.The invention also discloses exhaust mold insert mode.

Description

3D printing integrative-structure is vented mold insert mode method and exhaust mold insert mode
Technical field
The present invention relates to technical field prepared by mould, and in particular to a kind of 3D printing integrative-structure exhaust mold insert mode side Method, and implement the exhaust mold insert mode of this method.
Background technology
Since injection mold needs exhaust system, the region of the particularly deep position of bone.Many mold manufacturings are all tired at present The place of gas solves the problems, such as trapped gas in the form of mold insert is done, and since mold insert and mode are 2 separated individuals, is filled in mould Timing can produce gap, in injection since pressure is very big, often produce burr in the place in mold insert and mode gap, influence The appearance of injecting products and do not reach the requirement of client.
The content of the invention
This invention is for current art deficiency, there is provided a kind of 3D printing integrative-structure is vented mold insert mode method, logical The mode and exhaust mold insert of 3D printing technique manufacture integrative-structure are crossed, improves die venting and prevents burr from producing, improve injection Quality.
The present invention also provides a kind of exhaust mold insert mode for implementing the preparation method.
The used to achieve the above object technical solution of the present invention is：
A kind of 3D printing integrative-structure is vented mold insert mode method, it is characterised in that it comprises the following steps：
(1) software is aided in establish three-dimensional modeling model of the mode of integrative-structure with being vented mold insert, the exhaust by CAD Mold insert is located at mode middle part；
(2) laser sintered 3D printer is set, the three-dimensional modeling model of step (1) is modeled and is layered by CAD and is cut Piece software processing, obtains the mode of integrative-structure and is vented each layer data needed for the 3D printer of mold insert, in each layer data Including the laser sintered region of mode and the laser sintered region of exhaust mold insert；Each layer data is directed into 3D printer, and in 3D The laser sintered region of mode and the sweep parameter for being vented the laser sintered region of mold insert are set respectively in printer；
(3) successively scanned according to each layer data of laser scanning of step (2), the laser sintered region of mode forms densification The mode of structure, is vented exhaust mold insert of the laser sintered region of mold insert formed with multiple gap pore structures, is vented mold insert and mould Benevolence is structure as a whole.
As a further improvement, in the step (3), the process successively scanned comprises the following steps：
(31) when laser beam is scanned one layer, when laser beam is scanned mode laser sintered region, laser beam To be all transverse direction or be all that longitudinal direction is progressively scanned, and rear a line laser beam flying track and previous row laser beam Scanning track is equipped with lap；
When laser beam is scanned the laser sintered region for being vented mold insert, laser beam is to be all transverse direction or be all longitudinal Direction is progressively scanned, and gap is equipped between a line laser beam flying track and previous row laser beam flying track afterwards；
(32) after laser beam completes previous laser beam flying layer scanning, when carrying out latter laser beam flying layer scanning,
When laser beam is scanned mode laser sintered region, laser beam be all transverse direction or be all longitudinal direction into Row progressive scan, and rear a line laser beam flying track is equipped with lap with previous row laser beam flying track；
When laser beam is scanned the laser sintered region for being vented mold insert, laser beam is to be all transverse direction or be all longitudinal Direction is progressively scanned, and gap is equipped between a line laser beam flying track and previous row laser beam flying track afterwards,
Swept with previous laser beam in the laser beam flying direction in the laser sintered region of exhaust mold insert of latter laser beam flying layer The laser beam flying direction for retouching the laser sintered region of exhaust mold insert of layer intersects；Each row laser beam is swept in previous laser beam flying layer Retouch the gap in the gap between track and latter laser beam flying layer between each row laser beam flying track to be overlapping, formed Mesopore, the mesopore are the exhausting-gas hole of exhaust mold insert.
As a further improvement, the 3D printing integrative-structure exhaust mold insert mode method is further comprising the steps of：
(4) metal dust in mesopore is suctioned out.
As a further improvement, the direction of the mesopore is vertical direction, from top to bottom through exhaust mold insert, by mode It is internal to be connected with outside.
As a further improvement, in step (32), the laser sintered region of exhaust mold insert of latter laser beam flying layer is swashed The perpendicular friendship in laser beam flying direction of light beam scanning direction and the laser sintered region of exhaust mold insert of previous laser beam flying layer Fork, or in diagonal cross.
As a further improvement, in step (31) or (32), when laser beam is scanned mode laser sintered region, swash Light beam is to be all transverse direction or be all that longitudinal direction is progressively scanned, and rear a line laser beam flying track is swashed with previous row Light beam scanning track is equipped with lap, and lap is the 30% of laser beam flying track.
A kind of exhaust mold insert mode for implementing above-mentioned 3D printing integrative-structure exhaust mold insert mode method, the exhaust mold insert Mode is mode and the integrative-structure for being vented mold insert composition, and the exhaust mold insert is located at mode middle part, the exhaust mold insert Inside print multiple mesopores.
As a further improvement, the direction of the mesopore is vertical direction, from top to bottom through exhaust mold insert, by mode It is internal to be connected with outside.
As a further improvement, the mesopore is equipped with metal dust to be vertically arranged in hole.
As a further improvement, the mesopore is vertically disposed through hole.
Beneficial effects of the present invention：The present invention by 3D printing be made into one structure mode with exhaust mold insert, mode with Mold insert is vented in injection, can realize degassing function, mould intracavity gas are smoothly discharged by being vented the mesopore of mold insert, are solved Trapped gas problem, simultaneously as mode is structure as a whole with exhaust mold insert, therefore will not be by reason of heavy pressure and in exhaust insert in injection Part and the place in mode gap produce burr, and the appearance looks elegant of injecting products is indefectible.
Below in conjunction with the accompanying drawings with embodiment, the present invention is described in more detail.
Brief description of the drawings
Fig. 1 is the structure diagram of the mode and exhaust mold insert of the integrative-structure of the present embodiment；
Fig. 2 is the exhaust mold insert structure diagram of the present embodiment；
Fig. 3 is the laser beam flying layer schematic diagram of the laser sintered region laser beam flying track of mode one；
Fig. 4 is exhaust laser sintered two laser beam flying layer schematic diagrames in region laser beam flying track of mold insert；
Fig. 5 is A positions enlarged structure schematic diagram in Fig. 4；
In figure：1. the laser sintered region of mode, the 2. laser sintered regions of exhaust mold insert, 3. laser beam flying tracks, 4. weights Folded part, 5. gaps, 6. mesopores, 7. laser beam flying layers.
Embodiment
Embodiment, referring to Fig. 1~5,3D printing integrative-structure provided in this embodiment is vented mold insert mode method, it includes Following steps：
(1) software is aided in establish three-dimensional modeling model of the mode of integrative-structure with being vented mold insert, the exhaust by CAD Mold insert is located at mode middle part；
(2) laser sintered 3D printer is set, the three-dimensional modeling model of step (1) is modeled and is layered by CAD and is cut Piece software processing, obtains the mode of integrative-structure and is vented each layer data needed for the 3D printer of mold insert, in each layer data Including the laser sintered region 1 of mode and the laser sintered region 2 of exhaust mold insert；Each layer data is directed into 3D printer, and The laser sintered region 1 of mode and the sweep parameter for being vented the laser sintered region 2 of mold insert are set respectively in 3D printer；
(3) successively scanned according to each layer data of laser scanning of step (2), the laser sintered region 1 of mode, which is formed, to be caused The mode of close structure, is vented exhaust mold insert of the laser sintered region of mold insert formed with multiple 6 structures of mesopore, exhaust mold insert with Mode is structure as a whole, and the process successively scanned comprises the following steps：
(31) when laser beam is scanned one layer, when laser beam is scanned the laser sintered region of mode 1, laser beam To be all transverse direction or be all that longitudinal direction is progressively scanned, and rear a line laser beam flying track 3 and previous row laser Beam scanning track 3 is equipped with lap 4；
When laser beam is scanned the laser sintered region for being vented mold insert, laser beam is to be all transverse direction or be all longitudinal Direction is progressively scanned, and gap is equipped between a line laser beam flying track 3 and previous row laser beam flying track 3 afterwards 5；
(32) after laser beam, which completes previous laser beam flying layer 7, to be scanned, when carrying out the latter scanning of laser beam flying layer 7,
When laser beam is scanned the laser sintered region of mode 1, laser beam is to be all transverse direction or be all longitudinal direction Progressively scanned, and rear a line laser beam flying track 3 is equipped with lap 4 with previous row laser beam flying track 3；
When laser beam is scanned the laser sintered region for being vented mold insert, laser beam is to be all transverse direction or be all longitudinal Direction is progressively scanned, and gap is equipped between a line laser beam flying track 3 and previous row laser beam flying track 3 afterwards 5,
The laser beam flying direction in the laser sintered region 2 of exhaust mold insert of latter laser beam flying layer 7 and previous laser beam The laser beam flying direction in the laser sintered region 2 of exhaust mold insert of scanning slice 7 intersects；Each row swashs in previous laser beam flying layer 7 Hand in gap 5 in gap 5 and latter laser beam flying layer 7 between light beam scanning track 3 between each row laser beam flying track 3 It is wrong overlapping, mesopore 6 is formed, which is the exhausting-gas hole of exhaust mold insert；The exhaust mold insert of latter laser beam flying layer 7 swashs The laser beam in the laser beam flying direction in light sintering region 2 and the laser sintered region 2 of exhaust mold insert of previous laser beam flying layer 7 The perpendicular intersection in scanning direction, or in diagonal cross；
(4) metal dust in mesopore 6 is suctioned out.
In above-mentioned steps (31) or (32), when laser beam is scanned the laser sintered region of mode 1, laser beam is to be all Transverse direction is all that longitudinal direction is progressively scanned, and rear a line laser beam flying track 3 and previous row laser beam flying Track 3 is equipped with lap 4, and lap 4 is the 30% of laser beam flying track 3.
The direction of the mesopore 6 is vertical direction, from top to bottom through exhaust mold insert, will be connected inside mode with outside It is logical.
The exhaust mold insert mode that the present embodiment also provides, the exhaust mold insert mode are mode with being vented the one of mold insert composition Body structure, the exhaust mold insert are located at mode middle part, multiple mesopores 6 are printed in the exhaust mold insert.
The direction of the mesopore 6 is vertical direction, from top to bottom through exhaust mold insert, will be connected inside mode with outside It is logical, the local air of trapped gas in mode is exported.
The mesopore 6 is equipped with metal dust, alternatively, the mesopore 6 is vertically disposed logical to be vertically arranged in hole Hole.
The mode of printing shaping is structure as a whole with exhaust mold insert, inseparable.
Present invention is not limited to the embodiments described above, using identical or approximation method or knot with the above embodiment of the present invention Structure, and obtained other 3D printing integrative-structures exhaust mold insert mode method and exhaust mold insert mode, the protection in the present invention Within the scope of.

Claims (10)

1. a kind of 3D printing integrative-structure is vented mold insert mode method, it is characterised in that it comprises the following steps：
(1) software is aided in establish three-dimensional modeling model of the mode of integrative-structure with being vented mold insert, the exhaust mold insert by CAD Positioned at mode middle part；
(2) laser sintered 3D printer is set, the three-dimensional modeling model of step (1) is modeled by CAD and hierarchy slicing is soft Part processing, obtains the mode of integrative-structure and is vented each layer data needed for the 3D printer of mold insert, each layer data includes The laser sintered region of mode and the laser sintered region of exhaust mold insert；Each layer data is directed into 3D printer, and in 3D printing The laser sintered region of mode and the sweep parameter for being vented the laser sintered region of mold insert are set respectively in machine；
(3) successively scanned according to each layer data of laser scanning of step (2), the laser sintered region of mode forms compact texture Mode, be vented exhaust mold insert of the laser sintered region of mold insert formed with multiple gap pore structures, exhaust mold insert is with mode Integrative-structure.
2. 3D printing integrative-structure according to claim 1 is vented mold insert mode method, it is characterised in that the step (3) in, the process successively scanned comprises the following steps：
(31) when laser beam is scanned one layer, when laser beam is scanned mode laser sintered region, laser beam is with same For transverse direction or it is all that longitudinal direction is progressively scanned, and rear a line laser beam flying track and previous row laser beam flying Track is equipped with lap；
When laser beam is scanned the laser sintered region for being vented mold insert, laser beam is to be all transverse direction or be all longitudinal direction Progressively scanned, and gap is equipped between a line laser beam flying track and previous row laser beam flying track afterwards；
(32) after laser beam completes previous laser beam flying layer scanning, when carrying out latter laser beam flying layer scanning,
When laser beam is scanned mode laser sintered region, laser beam be all transverse direction or be all longitudinal direction carry out by Row scanning, and rear a line laser beam flying track is equipped with lap with previous row laser beam flying track；
When laser beam is scanned the laser sintered region for being vented mold insert, laser beam is to be all transverse direction or be all longitudinal direction Progressively scanned, and gap be equipped between a line laser beam flying track and previous row laser beam flying track afterwards,
The laser beam flying direction in the laser sintered region of exhaust mold insert of latter laser beam flying layer and previous laser beam flying layer The laser beam flying direction in exhaust mold insert laser sintered region intersect；Each row laser beam flying rail in previous laser beam flying layer Gap in gap and latter laser beam flying layer between mark between each row laser beam flying track is overlapping, and forms gap Hole, the mesopore are the exhausting-gas hole of exhaust mold insert.
3. 3D printing integrative-structure according to claim 2 is vented mold insert mode method, it is characterised in that its further include with Lower step：
(4) metal dust in mesopore is suctioned out.
4. 3D printing integrative-structure according to claim 2 is vented mold insert mode method, it is characterised in that the mesopore Direction be vertical direction, from top to bottom through exhaust mold insert, will be connected with exterior inside mode.
5. 3D printing integrative-structure according to claim 2 is vented mold insert mode method, it is characterised in that step (32) In, the laser beam flying direction in the laser sintered region of exhaust mold insert of latter laser beam flying layer and previous laser beam flying layer The perpendicular intersection in laser beam flying direction in the laser sintered region of mold insert is vented, or in diagonal cross.
6. 3D printing integrative-structure according to claim 2 is vented mold insert mode method, it is characterised in that step (31) or (32) in, when laser beam is scanned mode laser sintered region, laser beam be all transverse direction or be all longitudinal direction into Row progressive scan, and rear a line laser beam flying track is equipped with lap, overlapping portion with previous row laser beam flying track It is divided into the 30% of laser beam flying track.
A kind of 7. exhaust insert made by one of claim 1~6 3D printing integrative-structure exhaust mold insert mode method Part mode, it is characterised in that the integrative-structure that the exhaust mold insert mode forms for mode with being vented mold insert, the exhaust mold insert Positioned at mode middle part, multiple mesopores are printed in the exhaust mold insert.
8. exhaust mold insert mode according to claim 7, it is characterised in that the direction of the mesopore is vertical direction, From top to bottom through exhaust mold insert, will be connected inside mode with outside.
9. exhaust mold insert mode according to claim 7, it is characterised in that the mesopore sets to be vertically arranged in hole There is metal dust.
10. exhaust mold insert mode according to claim 7, it is characterised in that the mesopore is vertically disposed through hole.
CN201611187874.8A 2016-12-20 2016-12-20 3D printing integrative-structure is vented mold insert mode method and exhaust mold insert mode Active CN106735212B (en)

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EP3441162A1 (en) * 2017-08-11 2019-02-13 Siemens Aktiengesellschaft Method of additively manufacturing a structure on a pre-existing component out of the powder bed
CN107420721A (en) * 2017-08-31 2017-12-01 东莞市康铭光电科技有限公司 A kind of lubrication system and lubricating method
CN107498749A (en) * 2017-08-31 2017-12-22 东莞市康铭光电科技有限公司 A kind of exhaust structure and method for exhausting
CN108099064A (en) * 2017-11-27 2018-06-01 山东豪迈机械科技股份有限公司 Mould manufacturing method and tire-mold based on 3D printing
CN108032466A (en) * 2017-11-27 2018-05-15 山东豪迈机械科技股份有限公司 A kind of tire-mold and its manufacture method
CN116021715A (en) * 2021-10-27 2023-04-28 嘉兴海拉灯具有限公司 Mold core, injection molding system and mold core manufacturing method based on 3D printing

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CN104399978A (en) * 2014-11-27 2015-03-11 华南理工大学 3D (Three Dimensional) forming method for large-sized porous amorphous alloy part of complex shape
CN106182606A (en) * 2015-04-10 2016-12-07 株式会社松浦机械制作所 Resin injection molding mold
CN106142454A (en) * 2015-04-15 2016-11-23 四川长虹电器股份有限公司 A kind of 3D prints the mould of processing
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