CN105252728A - Conformal cooling waterway mold structure and processing method - Google Patents

Conformal cooling waterway mold structure and processing method Download PDF

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Publication number
CN105252728A
CN105252728A CN201510815659.7A CN201510815659A CN105252728A CN 105252728 A CN105252728 A CN 105252728A CN 201510815659 A CN201510815659 A CN 201510815659A CN 105252728 A CN105252728 A CN 105252728A
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CN
China
Prior art keywords
insert
water channel
matrix
groove
type
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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
Application number
CN201510815659.7A
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Chinese (zh)
Inventor
何云锋
周明
黄登懿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN CHANGHONG MOLDING TECHNOLOGY Co Ltd
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SICHUAN CHANGHONG MOLDING TECHNOLOGY Co Ltd
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Application filed by SICHUAN CHANGHONG MOLDING TECHNOLOGY Co Ltd filed Critical SICHUAN CHANGHONG MOLDING TECHNOLOGY Co Ltd
Priority to CN201510815659.7A priority Critical patent/CN105252728A/en
Publication of CN105252728A publication Critical patent/CN105252728A/en
Pending legal-status Critical Current

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    • 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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7312—Construction of heating or cooling fluid flow channels
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a conformal cooling waterway mold structure and a processing method, relates to the technical field of mold manufacturing, and solves the problems that the conventional 3D printed conformal cooling waterway mold has high cost, and the print size is limited. According to the technical scheme, the conformal cooling waterway mold structure comprises a basal body and an insert, wherein a groove is formed in the molding surface of the basal body, and at least two waterways communicated with the groove are arranged in the basal body; the insert is mounted in the groove, and conformal waterways are arranged on the two sides of the contact surface of the insert and the basal body or in the insert and communicated with the waterways in the basal body to form channels; a cladding layer is arranged at the seam line of the insert and the basal body, and the external surface of the cladding layer is the molding surface. The conformal cooling waterway mold structure is detachably processed, and the insert can be processed in the conventional mechanical processing way or the selective laser melting 3D printing processing way. The liquid and gas sealing in the waterways is ensured, the processing and manufacturing cost is significantly reduced, and the popularization and application of the conformal cooling waterway is facilitated.

Description

With type cooling water channel mould structure and processing method
Technical field
The present invention relates to technology of die manufacturing field, especially a kind of with type cooling water channel mould structure and processing method.
Background technology
3D printing technique be applied to injection mold with in type cooling water channel Mould Machining, in the core being mainly arranged on formed product with type cooling water channel and die cavity, for shortening the cooling cycle, make the warm field of injecting products even, reduce due to the product parts warpage, the shrink mark that cause uneven in temperature, ensure the quality of product parts, improve the economic benefit of enterprise.
But, current employing 3D printing technique processing is quite high with the injection mold cost of type cooling water channel, the single-piece work cost of the injection-moulded plastic part reduced by shortening cool time is limited, generally need to produce more than hundreds thousand of the processing costs could regained 3D and print, processing cost is high limits the application in a mold of 3D printing technique.Secondly, inlaid piece of mould is subject to product shape, the requirement of outward appearance need be carried out entirety and print, and 3D printing device can not meet the printing requirement of large scale mold insert.
It is high with the cost of type cooling water channel mould that existing 3D prints processing, and stamp with the size is restricted, and can not meet the appearance requirement of plastic product completely.
Summary of the invention
The invention provides a kind of with type cooling water channel mould structure, make by machining, solve by the processing of 3D printing technique high with type cooling water channel die cost, and 3D prints the problem that can not meet the printing of large scale mold insert and require.
The technical scheme that the present invention solves the problems of the technologies described above employing is: with type cooling water channel mould structure, comprise matrix and insert, the forming surface of described matrix arranges groove, two water channels be communicated with described groove are at least set in matrix, in the groove of matrix, insert is installed, arrange with type water channel in the both sides of the contact surface of insert and matrix or insert, be communicated with the water channel be arranged in matrix respectively with type water channel two ends and form passage; The splicing seams place of insert and matrix arranges cladding layer, and the outer surface of cladding layer is forming surface.
Further, described insert is put together by least two pieces of sub-inserts, arranges one or more with type water channel in insert, and the split face of sub-insert will be separated with type water channel.Particularly, described split face is through the central axis with type water channel.
Owing to being be put together by sub-insert with type water channel, can machining mode be adopted respectively to process with type water channel semicircle in the split face of sub-insert, formed complete with type water channel after sub-insert split, edge is spelled in the groove of mold cores or die cavity again, and is communicated with water channel default in matrix with type water channel.
Be further, the distance with the forming surface outside any point to insert on the center line of type water channel in described insert is equal, cladding layer thickness is 3 ~ 5mm, distance with type water channel center line distance mould surface is (5+R/2) ~ (10+R/2) mm, and wherein R is the diameter with type water channel.
Further, described insert all arranges cladding layer relative to the one side of groove bottom land, and the outer surface of cladding layer is forming surface.
Further, the groove notch of described matrix is provided with groove face, angle >=60 ° of groove face, and cladding layer edge is positioned on groove face.
The present invention also provides a kind of processing method with type cooling water channel mould, and solve and processed with the high problem of type cooling water channel die cost by 3D printing technique, the processing method with type cooling water channel mould comprises the following steps:
The matrix of A, processing mold core or die cavity, the forming surface being included in matrix processes groove and in matrix, at least processes two water channels be communicated with described groove;
B, employing machining mode or selective laser melting 3D printing type process one piece of insert, the consistent size of the size of insert and the groove of matrix, and the Mosaic face of insert and matrix is provided with type water channel;
Or, machining mode or selective laser melting 3D printing type is adopted to process at least two pieces of sub-inserts, on split face between sub-insert or the Mosaic face of insert and matrix be provided with type water channel, sub-insert split can form the complete insert contained with type water channel together, and the consistent size of the groove of insert and matrix;
C, the insert that sub-insert split is formed or directly process the insert obtained and be fixedly installed in groove, being communicated with the water channel hole in matrix with type water channel of insert;
D, carry out Laser Cladding Treatment form cladding layer at insert and the splicing seams place of matrix or the upper surface of whole insert, the surface of cladding layer is forming surface.
Particularly, in described step A, the notch edges finished edge face of groove, angle >=60 ° of groove face, the edge of groove is far from the vertical range >=5mm at core or die cavity edge, the bottom land any point of groove is to minimum range >=(5+R) mm of forming surface, and wherein R is the diameter with type water channel.
Particularly, in described step A, the water channel in matrix is straight through water passage.
Particularly, in described D step, laser melting coating cladding powdered material components used is identical with matrix composition.
The invention has the beneficial effects as follows: by disassembling processing to mold cores or die cavity, can use conventional mechanical processing mode that selective laser melting 3D printing type can be used again to complete processing with type water channel, recycling laser melting and coating technique shaping dies mold insert surface, make mold insert matrix, entirety is formed with type water channel and cladding top layer, ensure that the liquid in water channel, air seal, it also avoid the splicing line of mold insert forming surface because producing with the processing of type water channel, 3D can be reached through and print the quality of processing with type cooling water channel mould, but significantly reduce processing and manufacturing cost, be beneficial to applying with type cooling water channel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention with the first embodiment of type cooling water channel mould structure;
Fig. 2 is A-A generalized section in Fig. 1;
Fig. 3 is the generalized section of the present invention with the second embodiment of type cooling water channel mould structure;
Fig. 4 is the generalized section of the present invention with the 3rd embodiment of type cooling water channel mould structure.
Parts, position and numbering in figure: matrix 1, straight through water passage 2, insert 3, lower insert 31, upper insert 32, with type water channel 4, cladding layer 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
First embodiment
As depicted in figs. 1 and 2, the present invention, with type cooling water channel mould structure, comprises matrix 1 and insert 3, the forming surface of matrix 1 arranges groove, two water channels be communicated with described groove are at least set in matrix 1, are arranged on as shown in Figure 2 in matrix 1 and straight through water passage 2 is set.In the groove of matrix 1, insert 3 is installed, arranges with type water channel 4 in insert 3, be communicated with the straight through water passage 2 be arranged in matrix 1 respectively with type water channel 4 two ends and form passage.Insert 3 is put together by upper insert and lower insert, and split face is passed through with type water channel 4, and preferred split face is by the center line with type water channel 4.Insert 3 arranges cladding layer 5 with the splicing seams place of matrix 1, and the outer surface of cladding layer 5 is forming surface, or the whole upper surface of insert 3 all arranges cladding layer 5.The notch place of groove arranges groove face, groove angle α >=60 °, so that carry out Laser Cladding Treatment.
As Fig. 2, with the center line of type water channel 4 and the shape of forming surface consistent, namely the distance with the forming surface outside any point to insert 3 on the center line of type water channel 4 is equal, cladding layer 5 thickness is 3 ~ 5mm, distance with type water channel 4 center line distance mould surface is (5+R/2) ~ (10+R/2) mm, and wherein R is the diameter with type water channel 4.
The above-mentioned processing method with type cooling water channel mould is: first, the forming surface of mold insert matrix 1 arranges groove, and the reserved straight through water passage 2 be communicated with type water channel 4, the thickness d of recess sidewall is 5mm, form groove face at groove notch forming surface edge, the angle of groove face is 60 °; Secondly, machining goes out upper insert and lower insert, the split face of upper insert and lower insert respectively by machining mode or the processing of selective laser melting 3D printing type present semicircle shape with type water channel, upper insert and lower insert are coordinated in the groove loading matrix 1, wherein with the radius R=6mm of type water channel; Again, upper insert and lower insert are combined to form insert 3, insert 3 and matrix 1 closely cooperate and form entirety, are 5mm with type water channel centre-to-centre spacing cladding layer lower surface, straight through water passage 2 and being communicated with type water channel 4 in insert 3; Finally, use and carry out laser melting coating with mold insert basic material composition, metal dust that performance is identical in insert 3 and the surperficial surrounding of matrix 1, cladding layer thickness is 3mm, and adopts machining mode to complete the forming surface of inlaid piece of mould, forms the unitary mould mold insert had with type water channel.
Insert 3 can adopt machining mode or the processing of selective laser melting 3D printing type, cost-saved, and not by the restriction of the size of 3D printing.
Second embodiment
As shown in Figure 3, second embodiment with type cooling water channel mould structure, comprise matrix 1 and insert 3, the forming surface of matrix 1 arrange groove, two water channels be communicated with described groove are at least set in matrix 1, two vertical straight through water passages 2 are set as diagram is arranged in matrix 1.In the groove of matrix 1, insert 3 is installed, insert 3 is made up of lower insert 31 and upper insert 32, wherein descend the straight water channel that in insert 31, setting is communicated with the straight through water passage 2 of matrix 1 inside, the upper surface of lower insert 31, the lower surface of upper insert 32 arrange respectively semicircle shape with type water channel 4, lower insert 31 is formed complete with type water channel 4 together with the split of upper insert 32, and be communicated with the straight water channel in lower insert 31 with type water channel 4, be communicated with the straight through water passage 2 in matrix 1 again, wherein descend the split face of insert 31 and upper insert 32 by the center line with type water channel 4.Be cladding layer 5 outside insert 3, the outer surface of cladding layer 5 is forming surface.
With the center line of type water channel 4 and the shape of forming surface consistent, the distance namely with the forming surface outside any point to insert 3 on the center line of type water channel 4 is equal.The notch place of groove arranges groove face, groove angle α >=60 °, so that carry out Laser Cladding Treatment.Cladding layer 5 thickness is 3 ~ 5mm, and the distance with type water channel 4 center line distance mould surface is (5+R/2) ~ (10+R/2) mm, and wherein R is the diameter with type water channel 4.
The processing mode with type cooling water channel mould of the second embodiment is as follows: first, the matrix 1 of machined die, and in matrix 1, the plane of forming parts or curved surface are easier to part and adopt straight through water passage, only arranges with type water channel for curved surface, profiled section.Arrange the groove that can coordinate with insert 3 in matrix 1, form groove face at groove notch forming surface edge, the angle of groove face is 70 °; Secondly, adopt selective laser melting mode to process also to coordinate in the groove of loading matrix 1 containing the insert 3 with type water channel 4, with the radius R=5mm of type water channel, wherein insert 3 is made up of lower insert 31 and upper insert 32 split, the split face of lower insert 31 and upper insert 32 by the center line with type water channel 4, the straight water channel machining in lower insert 31 and obtaining; Again, lower insert 31 and upper insert 32 split are formed insert 3, and insert 3 closely cooperates in the groove of loading matrix 1, and the distance with centre-to-centre spacing cladding layer 5 lower surface of type water channel 4 is 4mm; Finally, the metal dust identical with matrix 1 material composition, performance is used to carry out laser melting coating with the insert 3 of type water channel 3 and the surperficial surrounding of matrix 1 containing, cladding layer thickness is 3mm, and adopt machining mode to complete the forming surface of inlaid piece of mould, form the unitary mould mold insert had with type water channel.
3rd embodiment
As shown in Figure 4,3rd embodiment with type cooling water channel mould structure, comprise matrix 1 and insert 3, the forming surface of matrix 1 arranges groove, with type cooling water channel mould structure, there are two forming surface, namely the top of matrix 1 arranges groove, the right part of matrix 1 arranges groove, the bottom land of groove arrange semicircle shape with type water channel, in groove, insert 3 is set respectively, insert 3 is arranged semicircle shape with type water channel, insert 3 is installed on after in groove, two semicircle shapes complete with type water channel with type water channel composition, is communicated with the straight water channel 2 in matrix 1 with type water channel.The outer surface of insert 3 is cladding layer 5, and the outer surface of cladding layer 5 is forming surface.
With the center line of type water channel 4 and the shape of forming surface consistent, the distance namely with the forming surface outside any point to insert 3 on the center line of type water channel 4 is equal.Body ground, the notch place of groove arranges groove face, groove angle α >=60 °, such as α=60 °, so that carry out Laser Cladding Treatment.Cladding layer 5 thickness is 3 ~ 5mm, and the distance with type water channel 4 center line distance mould surface is (5+R/2) ~ (10+R/2) mm, and wherein R is the diameter with type water channel 4.
3rd embodiment as follows with type cooling water channel Mould Machining mode: first, the forming surface of matrix 1 arranges groove, and the latter half bottom land of groove arranged with type water channel, and the reserved turnover straight through water passage 2 be communicated with type water channel on matrix 1, groove is 8mm apart from the vertical range d at matrix 1 edge, form groove face at groove notch forming surface edge, the angle of groove face is 60 °; Secondly, machining goes out containing the insert 3 with type water channel semicircle, and insert 3 loads one side setting the first half with type water channel of groove bottom land, with the radius R=5mm of type water channel, insert 3 and matrix 1 closely cooperate and form entirety, and the centre-to-centre spacing cladding layer lower surface with type water channel 4 is 7mm; Finally, use and carry out laser melting coating with matrix 1 material composition, metal dust that performance is identical in insert 3 and the surperficial surrounding of matrix 1, cladding layer thickness is 3mm, and adopts machining mode to complete the forming surface of inlaid piece of mould, forms the unitary mould mold insert had with type water channel.

Claims (10)

1. with type cooling water channel mould structure, comprise matrix (1) and insert (3), it is characterized in that: the forming surface of described matrix (1) arranges groove, two water channels be communicated with described groove are at least set in matrix (1), in the groove of matrix (1), insert (3) is installed, arrange with type water channel (4) in the both sides of the contact surface of insert (3) and matrix (1) or insert (3), be communicated with the water channel be arranged in matrix (1) respectively with type water channel (4) two ends and form passage; Insert (3) arranges cladding layer (5) with the splicing seams place of matrix (1), and the outer surface of cladding layer (5) is forming surface.
2. as claimed in claim 1 with type cooling water channel mould structure, it is characterized in that: described insert (3) is put together by least two pieces of sub-inserts, arrange one or more in insert (3) with type water channel (4), the split face of sub-insert will be separated with type water channel (4).
3. as claimed in claim 2 with type cooling water channel mould structure, it is characterized in that: described split face is through the central axis with type water channel (4).
4. as claimed in claim 1 with type cooling water channel mould structure, it is characterized in that: the distance with the forming surface outside any point on the center line of type water channel (4) to insert (3) in described insert (3) is equal, cladding layer (5) thickness is 3 ~ 5mm, distance with type water channel (4) center line distance mould surface is (5+R/2) ~ (10+R/2) mm, and wherein R is the diameter with type water channel (4).
5. as claimed in claim 1 with type cooling water channel mould structure, it is characterized in that: described insert (3) all arranges cladding layer (5) relative to the one side of groove bottom land, the outer surface of cladding layer (5) is forming surface.
6. as claimed in claim 1 with type cooling water channel mould structure, it is characterized in that: the groove notch of described matrix (1) is provided with groove face, angle >=60 ° of groove face, cladding layer (5) edge is positioned on groove face.
7. with the processing method of type cooling water channel mould, it is characterized in that: comprise the following steps:
The matrix (1) of A, processing mold core or die cavity, the forming surface being included in matrix (1) processes groove and at least process two water channels be communicated with described groove in matrix (1);
B, employing machining mode or selective laser melting 3D printing type process one piece of insert (3), the consistent size of the size of insert (3) and the groove of matrix (1), insert (3) is provided with type water channel (4) with the Mosaic face of matrix (1);
Or, machining mode or selective laser melting 3D printing type is adopted to process at least two pieces of sub-inserts, on split face between sub-insert or the Mosaic face of insert (3) and matrix (1) be provided with type water channel (4), sub-insert split can form the complete insert (3) contained with type water channel (4) together, and the consistent size of the groove of insert (3) and matrix (1);
C, the insert (3) that sub-insert split is formed or directly process the insert (3) obtained and be fixedly installed in groove, being communicated with the water channel hole in matrix (1) with type water channel (4) of insert (3);
D, carry out Laser Cladding Treatment form cladding layer (5) at insert (3) and the splicing seams place of matrix (1) or the upper surface of whole insert (3), the surface of cladding layer (5) is forming surface.
8. as claimed in claim 7 with the processing method of type cooling water channel mould, it is characterized in that: in described step A, the notch edges finished edge face of groove, angle >=60 ° of groove face, the edge of groove is far from the vertical range >=5mm at core or die cavity edge, the bottom land any point of groove is to minimum range >=(5+R) mm of forming surface, and wherein R is the diameter with type water channel (4).
9., as claimed in claim 7 with the processing method of type cooling water channel mould, it is characterized in that: in described step A, the water channel in matrix (1) is straight through water passage (2).
10. as claimed in claim 7 with the processing method of type cooling water channel mould, it is characterized in that: in described D step, laser melting coating cladding powdered material components used is identical with matrix (1) composition.
CN201510815659.7A 2015-11-20 2015-11-20 Conformal cooling waterway mold structure and processing method Pending CN105252728A (en)

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Application Number Priority Date Filing Date Title
CN201510815659.7A CN105252728A (en) 2015-11-20 2015-11-20 Conformal cooling waterway mold structure and processing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510815659.7A CN105252728A (en) 2015-11-20 2015-11-20 Conformal cooling waterway mold structure and processing method

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106738733A (en) * 2017-04-14 2017-05-31 四川长虹电器股份有限公司 With the mould structure for eliminating mosaic line
CN106862491A (en) * 2017-03-29 2017-06-20 福建工程学院 One kind become shape heating cooling mould and its processing and application method
CN107225736A (en) * 2017-08-09 2017-10-03 奥克斯空调股份有限公司 A kind of pin-connected panel insert structure and taper pin core-pulling die
CN107842483A (en) * 2017-10-30 2018-03-27 华中科技大学 A kind of compound compressor cooler based on 3D printing technique
CN108723208A (en) * 2018-06-12 2018-11-02 苏州普热斯勒先进成型技术有限公司 The profile-followed water route mold of thermoforming and its processing method
CN108857298A (en) * 2018-06-26 2018-11-23 苏州普热斯勒先进成型技术有限公司 The processing method of the profile-followed water route mold of thermoforming
CN109128162A (en) * 2018-07-24 2019-01-04 华中科技大学 A kind of metal works processing method being embedded in prefabricated component
CN109986724A (en) * 2019-05-07 2019-07-09 重庆大学 Increasing material manufacturing mold with type cooling water channel structure-function combining design technology method
CN110014129A (en) * 2019-04-23 2019-07-16 中达连铸技术国家工程研究中心有限责任公司 A kind of tube type mold diversion water jacket and preparation method thereof
CN110076974A (en) * 2019-04-18 2019-08-02 甘肃机电职业技术学院 The design method of injection mold conformal cooling channel based on increases material manufacturing technology
CN110252988A (en) * 2019-05-14 2019-09-20 江苏九钰三维技术有限公司 A kind of compression mod and its design method with interior cooling type chamber
CN114310187A (en) * 2022-01-05 2022-04-12 一汽解放汽车有限公司 Die insert manufacturing method

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106862491A (en) * 2017-03-29 2017-06-20 福建工程学院 One kind become shape heating cooling mould and its processing and application method
CN106738733B (en) * 2017-04-14 2019-05-07 四川长虹电器股份有限公司 With the mould structure for eliminating mosaic line
CN106738733A (en) * 2017-04-14 2017-05-31 四川长虹电器股份有限公司 With the mould structure for eliminating mosaic line
CN107225736A (en) * 2017-08-09 2017-10-03 奥克斯空调股份有限公司 A kind of pin-connected panel insert structure and taper pin core-pulling die
CN107842483A (en) * 2017-10-30 2018-03-27 华中科技大学 A kind of compound compressor cooler based on 3D printing technique
CN107842483B (en) * 2017-10-30 2019-01-29 华中科技大学 A kind of compound compressor cooler based on 3D printing technique
CN108723208A (en) * 2018-06-12 2018-11-02 苏州普热斯勒先进成型技术有限公司 The profile-followed water route mold of thermoforming and its processing method
CN108857298A (en) * 2018-06-26 2018-11-23 苏州普热斯勒先进成型技术有限公司 The processing method of the profile-followed water route mold of thermoforming
CN109128162A (en) * 2018-07-24 2019-01-04 华中科技大学 A kind of metal works processing method being embedded in prefabricated component
CN110076974A (en) * 2019-04-18 2019-08-02 甘肃机电职业技术学院 The design method of injection mold conformal cooling channel based on increases material manufacturing technology
CN110014129A (en) * 2019-04-23 2019-07-16 中达连铸技术国家工程研究中心有限责任公司 A kind of tube type mold diversion water jacket and preparation method thereof
CN109986724A (en) * 2019-05-07 2019-07-09 重庆大学 Increasing material manufacturing mold with type cooling water channel structure-function combining design technology method
CN110252988A (en) * 2019-05-14 2019-09-20 江苏九钰三维技术有限公司 A kind of compression mod and its design method with interior cooling type chamber
CN114310187A (en) * 2022-01-05 2022-04-12 一汽解放汽车有限公司 Die insert manufacturing method

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Application publication date: 20160120