CN105437426B - A kind of reparation remodeling method of mould - Google Patents
A kind of reparation remodeling method of mould Download PDFInfo
- Publication number
- CN105437426B CN105437426B CN201510372687.6A CN201510372687A CN105437426B CN 105437426 B CN105437426 B CN 105437426B CN 201510372687 A CN201510372687 A CN 201510372687A CN 105437426 B CN105437426 B CN 105437426B
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- mould
- flow channel
- reparation
- coolant flow
- mold base
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- 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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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of reparation remodeling method of mould, comprise the following steps：1) cut；When being repaired for the mould including coolant flow channel, in the step, cutting removes the area to be repaired of mould, and also cutting separates the coolant flow channel so that part coolant flow channel is removed with the area to be repaired；When mould for not including coolant flow channel is repaired, in the step, cutting removes the area to be repaired of mould, then processes coolant flow channel by being machined in the mold base；2) mold base is detachably fixed on print platform；3) the reparation part of the mould is designed in the metal 3D printing system, and designs follow-cooling passageway；4) using the coolant flow channel in mold base as with reference to positioning, printing reparation is carried out using selective laser sintering 3D printing technique.The reparation remodeling method of the mould of the present invention, the quality of the mould after repairing can be improved, effectively extends its service life.
Description
【Technical field】
The present invention relates to the recovery technique of mould, and damaged mould repair is carried out based on metal 3D printing more particularly to one kind
And the technique and method of conformal cooling transformation.
【Background technology】
Mould is one of most widely used technology in current manufacturing industry, process of many moulds in high-volume injecting products
In, the complicated structural region of some in mould is easy to breakage.Majority is to remake mould after the breakage of traditional moulds region, this
Kind method cost is too high, process-cycle length, and can not improve the quality of product, and the structural region of volume production rear mold is same
Can be easily damaged.Also there are some schemes to propose to repair mould at present, such as pass through welding wire, machine tooling repairing mould
Fatigue layer, then for example can play one by the damaged area of cad technique, argon arc welding technology repairing mould, these restorative procedures
Fixed repair and reconstruction effect, but damaged mould how is preferably repaired, the mold use life-span is improved, also needs constantly research to visit
Rope.
【The content of the invention】
The technical problems to be solved by the invention are：Above-mentioned the deficiencies in the prior art are made up, propose a kind of reparation of mould
Remodeling method, transformed while reparation in the damaged area to mould, the quality of the mould after repairing can be improved, had
Effect extends its service life.
The technical problem of the present invention is solved by following technical scheme：
A kind of reparation remodeling method of mould, is repaired for the mould including coolant flow channel, is comprised the following steps：1)
It is determined that the cutting planes of machining so that cutting removes the area to be repaired of mould, and also cutting separates the cooling stream
Road so that part coolant flow channel is removed with the area to be repaired；The mould part left after cutting is defined as mould
Pedestal, remainder runner are left with the mold base；2) mold base is detachably fixed into metal 3D to beat
On the print platform of print system；3) the reparation part of the mould is designed in the metal 3D printing system, and is designed
Go out follow-cooling passageway to be distributed in the reparation part of the mould；4) using the coolant flow channel in the mold base as with reference to fixed
Position, the inside points for repairing out design in step 3) are printed on the mold base using selective laser sintering 3D printing technique
The reparation part of follow-cooling passageway is furnished with, make to print repairs part and the position correspondence of the mold base, makes described
The follow-cooling passageway repaired in part penetrates with the coolant flow channel in the mold base.
A kind of reparation remodeling method of mould, repaired, comprised the following steps for the mould for not including coolant flow channel：
1) area to be repaired for removing mould is cut by being machined, the mould part left after cutting is defined as mold base；It is logical
Over mechanical processing processes coolant flow channel in the mold base；2) mold base is detachably fixed to metal 3D
On the print platform of print system；3) the reparation part of the mould is designed in the metal 3D printing system, and is set
Follow-cooling passageway is counted out to be distributed in the reparation part of the mould；4) using the coolant flow channel in the mold base as reference
Positioning, the inside for repairing out design in step 3) is printed on the mold base using selective laser sintering 3D printing technique
The reparation part of follow-cooling passageway is distributed with, make to print repairs part and the position correspondence of the mold base, makes institute
The follow-cooling passageway repaired in part is stated to penetrate with the coolant flow channel in the mold base.
The beneficial effect that the present invention is compared with the prior art is：
The reparation remodeling method of the mould of the present invention, is repaiied using metal 3D printing technique to the damaged area of mould
Multiple, while repairing, by the combination of technology such as cutting, printing, using coolant flow channel, either existing coolant flow channel is also
Be early stage machining supplement coolant flow channel, as printing when positioning reference, so as to design print inside be distributed with
The damaged portion of shape coolant flow channel.Due to being by 3D printing technique, therefore it can design and print with mould damaged portion
The coolant flow channel of contour shape distribution, i.e. follow-cooling passageway.It is profile-followed cold in damaged portion when mould is used for injection molding
But runner is formed through the circulation duct of coolant with the coolant flow channel in mold base.Because the mould that repair and reconstruction goes out is damaged
Distribution is follow-cooling passageway in part, so the outer surface each point of the part is relatively near apart from cooling liquid flowing channel, radiating effect
Fruit is preferable, and cooling effectiveness is high.The method of the present invention so that mould is not only repaired, and is also improved, carried while repairing
Cooling radiating effect is risen, die quality is improved, and can effectively be increased the service life.
【Brief description of the drawings】
Fig. 1 is the flow chart of the reparation remodeling method of the mould of the specific embodiment of the invention；
Fig. 2 is that the mould of the specific embodiment of the invention is repairing the structural representation before transforming；
Fig. 3 is that the mould of the specific embodiment of the invention is repairing the structural representation after transforming.
【Embodiment】
With reference to embodiment and compare accompanying drawing the present invention is described in further details.
Idea of the invention is that transforming mould during repairing mould breakage, the quality of mould is set to get a promotion.Change
When making, by being analyzed the structure of existing mold and mould repair manufactures the research of process technology, the broken of mould is found
Damage and repair after it is damaged again the reason for one of be damaged area cooling effect it is poor, consider to dissipate from the cooling of mould accordingly
Transformed in terms of thermal effect.During transformation, set about from coolant flow channel, increase conformal cooling while mould structure region is transformed
System design.And metal 3D printing mixing manufacturing technology is increasingly mature, manufacture and design for damaged mould structure region profile-followed cold
But modernization system creates condition, therefore the damaged area that follow-cooling passageway is distributed with is produced by 3D printing, not only real
Now repair, also realize and promote, so that the die quality after repairing is improved, increase the service life.
As shown in figure 1, the flow chart of the reparation remodeling method for the mould of present embodiment, for being flowed including cooling
The mould in road is repaired, and is comprised the following steps：
1) cut：It is determined that the cutting planes of machining so that cutting removes the area to be repaired of mould, and also cutting point
Cut open the coolant flow channel so that part coolant flow channel is removed with the area to be repaired；The mould left after cutting
Part is defined as mold base, and remainder runner is left with the mold base.
Referring to Fig. 2, for the structural representation of the mould before reparation.Coolant flow channel is provided with mould (in figure to illustrate
Mark 4 and 5 form pipeline), due to the coolant flow channel of mould be by machining, therefore be from mold exterior run through into
Enter mould inside, and pipeline can only be rectilinear form.Before reparation, the area of the needs reparations such as breakage, slight crack on mould be present
Domain (does not illustrate) in Fig. 2.By cutting, the region that mark 3 indicates in mould is cut removal, and the part left is defined as mould
Has pedestal 2, so as to subsequent descriptions.
In the step, by analyzing damaged mould, it is determined that needing to be machined the position of cutting, not only remove during cutting and deposit
In the region of the needs reparation such as breakage, slight crack, part coolant flow channel is also removed simultaneously, namely cutting planes need to separate cooling stream
Road so that part coolant flow channel (coolant flow channel that mark 4 indicates in Fig. 2) is removed with region to be repaired, and remainder is cold
But runner (coolant flow channel that mark 5 indicates in Fig. 2) is left with mold base 2.Specifically, as shown in Fig. 2 along figure aa '
Line is cut, then the region that mark 3 indicates, which is cut, to be removed, and the region that need to be repaired, in addition to portion are not only included on the region
Divide coolant flow channel 4.So, part coolant flow channel 4 is cut with region to be repaired and removed, improved subsequently to print generation
New follow-cooling passageway；Part coolant flow channel 5 with mold base 2 be retained, for subsequent step 3) design and step 4)
It is used as during middle 3D printing with reference to positioning.
Above-mentioned is for including the cutting situation that the mould of coolant flow channel is repaired, when for not including coolant flow channel
When mould is repaired, during cutting, the area to be repaired of mould is removed, cutting planes do not have other requirements.But now, need
The part left by being machined in, namely part coolant flow channel is processed in mold base.That is, such as mold body not
With coolant flow channel, then need first to process coolant flow channel using the mode of machining for mould.It is cold due to what is be machined into
But runner can only be through entering mould inside from mold exterior, therefore under the situation, coolant flow channel after processing is from mould base
The side of seat extends through opposite side, can be identical with the runner 5 in Fig. 2, also can be different from the runner 5 in Fig. 2, as long as process
The profile-followed runner that runner is formed with follow-up 3D printing is formed through coolant circulation passage, and concrete shape is not limited.No
Mould including coolant flow channel is after this step processes coolant flow channel, follow-up processing step and the mould for including coolant flow channel
Subsequent processing steps it is identical, therefore be subsequently no longer separately illustrated, the description content of subsequent step is applied to above two simultaneously
Situation.
2) it is fixed：The mold base is detachably fixed on the print platform of metal 3D printing system.
The step is that subsequent metal 3D printing is prepared.Mold base 2 is detachably fixed to metal 3D printing system
Print platform on.During specific implementation, it can design and process a printing bottom plate, as shown in Fig. 2 printing bottom plate 1, by mould base
Seat 2 is detachably secured to print on bottom plate 1, and then is detachably fixed on the print platform of metal 3D printing system.Print bottom
Plate 1 is designed according to size, the shape of mold base 2, it is ensured that mold base 2 matches with printing bottom plate 1., can when fixed
The mechanical structure such as processing sets up screw, the projection or groove installation mold pedestal 2 releasably secure on printing bottom plate 1,
Then bottom plate 1 will be printed to be fixed on the print platform of metal 3D printing system, you can be detachably fixed to mold base 2
On print platform.
3) design：The reparation part of the mould is designed in the metal 3D printing system, and is designed profile-followed
Coolant flow channel is distributed in the reparation part of the mould.
Go out the planform for the part that need to be repaired in the step according to the original form construction design of damaged portion, and design
Go out the follow-cooling passageway being distributed with the shape, so as to subsequently print the internal reparation part that follow-cooling passageway is distributed with.With
Shape coolant flow channel designs distribution according to the original outer shape of damaged portion, and its geometry and mould damaged portion are original
Shell shape is distributed with the shape so that mould molding part energy Quick uniform cools down.Preferably, the aperture of the follow-cooling passageway of design
Between 1.5~8mm.If the aperture of design is more than 8mm, aperture is too big, whard to control during subsequent metal 3D printing to print
Shape, the mould part printed if the cooperation of no supporting construction are yielding；If the aperture of design is less than 1.5mm,
Aperture is smaller, the circulation with being also not susceptible to coolant after the coolant flow channel insertion in mold base.
4) 3D printing：Using the coolant flow channel in mold base as with reference to positioning, selective laser sintering 3D printing skill is used
Art prints on the mold base repairs out the reparation part that follow-cooling passageway is distributed with the inside designed in step 3), makes
Print repair part and the mold base position correspondence, make it is described reparation part in follow-cooling passageway with it is described
Coolant flow channel insertion in mold base.
After the step is repaired, obtained mould structure schematic diagram is as shown in Figure 3.By metal 3D printing forming technique in mould
Mixing manufacture is carried out on tool base 2, printing processes the original form of the damaged portion on mold base 2, namely repairs part
(mould part indicated see the mark 30 in Fig. 3), while its coolant flow channel is transformed, follow-cooling passageway is improved to (see in Fig. 3
Mark 40 indicate runner).The damaged mould part to be printed is carried out with reference to positioning by coolant flow channel 5, it is ensured that is printed
Repair part it is corresponding with the position accurate fit of the mold base 2 in original mould, also ensure that print reparation part in
Follow-cooling passageway penetrates with the coolant flow channel 5 in mold base 2, forms the cooling but logical passage of liquid stream.In the step, use
Selective laser sintering 3D printing technique so that the process of side printing, the side melting surface area of mold base 2 so that printing
Top of the part preferably with mold base 2 of repairing gone out is merged, and one is combined to form with mold base 2 after printing
Overall, this is also an advantage for taking full advantage of the 3D printing technique.
More than, the reparation of damaged mould is realized by metal 3D printing technique and changed while adding conformal cooling
Make, not only repaired mould, more transformed mould simultaneously, made the cooling radiating effect of mould more preferable, improve the mould after repairing
The quality of tool, the mold use life-span effectively extended after repairing.Repaired with metal 3D printing, relative to other machinery plus
Work reparation or cad technique reparation, it may have save manufacturing time, reduce the advantage of cost.By repairing for present embodiment
Mould parts after multiple, which are used to be molded, to be produced, and dynamical conformal cooling system can not only improve quality and the longevity of mould itself
Life, and production efficiency can be improved by shortening product injection molding cycle times.
Preferably, after above-mentioned reparation transformation, in addition to the mould after reparation is post-processed, meeting mould should
With requiring.These aftertreatment technologys include the clear powder processing of coolant flow channel, heat treatment destressing processing, High Speed Milling Operation, electric spark, polishing
Polishing, so that the final accurate dimension of mould meets sets requirement.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
Some replacements or obvious modification are made on the premise of not departing from present inventive concept, and performance or purposes are identical, should all be considered as
Belong to protection scope of the present invention.
Claims (10)
- A kind of 1. reparation remodeling method of mould, it is characterised in that：Repaired for the mould including coolant flow channel, including with Lower step：1) cutting planes of machining are determined so that cutting removes the area to be repaired of mould, and also cutting separate it is described Coolant flow channel so that part coolant flow channel is removed with the area to be repaired；The mould part definition left after cutting For mold base, remainder coolant flow channel is left with the mold base；2) mold base is detachably fixed on the print platform of metal 3D printing system；3) the reparation part of the mould is designed in the metal 3D printing system, and designs follow-cooling passageway point Cloth is in the reparation part of the mould；The follow-cooling passageway is to be distributed with the contour shape of the area to be repaired of mould Coolant flow channel；4) positioned by reference of the coolant flow channel in the mold base, using selective laser sintering 3D printing technique described The reparation part that follow-cooling passageway is distributed with the inside designed in step 3) is repaired out in printing on mold base, makes what is printed Part and the position correspondence of the mold base are repaired, makes the follow-cooling passageway in the reparation part and the mold base Interior coolant flow channel insertion.
- 2. the reparation remodeling method of mould according to claim 1, it is characterised in that：Design is profile-followed in the step 3) The pore size of coolant flow channel is 1.5~8mm.
- 3. the reparation remodeling method of mould according to claim 1, it is characterised in that：In the step 2), pass through design Processing printing bottom plate, the mold base is detachably secured on the printing bottom plate, and then is detachably fixed the gold On the print platform for belonging to 3D printing system.
- 4. the reparation remodeling method of mould according to claim 1, it is characterised in that：Also include step 5), after reparation Mould post-processed, mould is met application requirement.
- 5. the reparation remodeling method of mould according to claim 4, it is characterised in that：The post processing includes coolant flow channel Clear powder processing, heat treatment destressing processing, High Speed Milling Operation, electric spark, sanding and polishing.
- A kind of 6. reparation remodeling method of mould, it is characterised in that：Repaired for the mould for not including coolant flow channel, including Following steps：1) area to be repaired for removing mould is cut by being machined, the mould part left after cutting is defined as mould base Seat；Coolant flow channel is processed by being machined in the mold base；2) mold base is detachably fixed on the print platform of metal 3D printing system；3) the reparation part of the mould is designed in the metal 3D printing system, and designs follow-cooling passageway point Cloth is in the reparation part of the mould；The follow-cooling passageway is to be distributed with the contour shape of the area to be repaired of mould Coolant flow channel；4) positioned by reference of the coolant flow channel in the mold base, using selective laser sintering 3D printing technique described The reparation part that follow-cooling passageway is distributed with the inside designed in step 3) is repaired out in printing on mold base, makes what is printed Part and the position correspondence of the mold base are repaired, makes the follow-cooling passageway in the reparation part and the mold base Interior coolant flow channel insertion.
- 7. the reparation remodeling method of mould according to claim 6, it is characterised in that：Design is profile-followed in the step 3) The pore size of coolant flow channel is 1.5~8mm.
- 8. the reparation remodeling method of mould according to claim 6, it is characterised in that：In the step 2), pass through design Processing printing bottom plate, the mold base is detachably secured on the printing bottom plate, and then is detachably fixed the gold On the print platform for belonging to 3D printing system.
- 9. the reparation remodeling method of mould according to claim 6, it is characterised in that：Also include step 5), after reparation Mould post-processed, mould is met application requirement.
- 10. the reparation remodeling method of mould according to claim 9, it is characterised in that：The post processing includes cooling stream The clear powder processing in road, heat treatment destressing processing, High Speed Milling Operation, electric spark, sanding and polishing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510372687.6A CN105437426B (en) | 2015-06-29 | 2015-06-29 | A kind of reparation remodeling method of mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372687.6A CN105437426B (en) | 2015-06-29 | 2015-06-29 | A kind of reparation remodeling method of mould |
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| CN105437426A CN105437426A (en) | 2016-03-30 |
| CN105437426B true CN105437426B (en) | 2017-12-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3284550B2 (en) | 2016-08-18 | 2023-04-26 | SMS Concast AG | Method for producing a mould for continuous casting of metallic products, and a mould |
| CN112719084B (en) * | 2020-12-29 | 2023-05-12 | 湖北凸凹模具科技股份有限公司 | High-strength stamping die molded surface and manufacturing and repairing method |
| CN115041915B (en) * | 2022-06-27 | 2024-02-06 | 广东鸿图科技股份有限公司 | Repairing method and server for metal 3D printing mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850396A (en) * | 2006-04-14 | 2006-10-25 | 华中科技大学 | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway |
| CN103587005A (en) * | 2013-11-12 | 2014-02-19 | 华中科技大学 | Maze conformal cooling method and structure of mold |
| CN203509463U (en) * | 2013-07-30 | 2014-04-02 | 华南理工大学 | Composite manufacturing device with conformal cooling channel injection mold |
| CN104493163A (en) * | 2014-12-30 | 2015-04-08 | 无锡银邦精密制造科技有限公司 | 3D (Three-Dimensional) printing processing method capable of facilitating power clearing treatment for injection mold overall mold core |
| CN104630767A (en) * | 2015-01-13 | 2015-05-20 | 中冶南方工程技术有限公司 | Metal part repairing device for local powder bed selective melting and repairing method |
-
2015
- 2015-06-29 CN CN201510372687.6A patent/CN105437426B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850396A (en) * | 2006-04-14 | 2006-10-25 | 华中科技大学 | Method for rapidly manufacturing injection-mould insert with follow-cooling passageway |
| CN203509463U (en) * | 2013-07-30 | 2014-04-02 | 华南理工大学 | Composite manufacturing device with conformal cooling channel injection mold |
| CN103587005A (en) * | 2013-11-12 | 2014-02-19 | 华中科技大学 | Maze conformal cooling method and structure of mold |
| CN104493163A (en) * | 2014-12-30 | 2015-04-08 | 无锡银邦精密制造科技有限公司 | 3D (Three-Dimensional) printing processing method capable of facilitating power clearing treatment for injection mold overall mold core |
| CN104630767A (en) * | 2015-01-13 | 2015-05-20 | 中冶南方工程技术有限公司 | Metal part repairing device for local powder bed selective melting and repairing method |
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