CN106944601A - Die casting and thin-wall part moulding process for thin-wall part die cast - Google Patents
Die casting and thin-wall part moulding process for thin-wall part die cast Download PDFInfo
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- CN106944601A CN106944601A CN201710333580.XA CN201710333580A CN106944601A CN 106944601 A CN106944601 A CN 106944601A CN 201710333580 A CN201710333580 A CN 201710333580A CN 106944601 A CN106944601 A CN 106944601A
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- thin
- wall part
- die casting
- die
- mating surface
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2236—Equipment for loosening or ejecting castings from dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of die casting for thin-wall part die cast, wherein, the surface texture and size of the mating surface of thin-wall part finished product are determined by die casting shaping；Flat thimble in die casting is arranged in die casting position corresponding with the exhaust end of thin-wall part.The invention also discloses a kind of thin-wall part moulding process, die cast is carried out to thin-wall part using die casting above in the technique.The present invention is by controlling die size, it is the surface texture and size of finished product directly to make the surface texture and size of the mating surface of the thin-wall part of die cast, the thimble on allowance, CNC processing auxiliary step and step on a mating is set to arrange in die cast so as to eliminate thin-wall part, and eliminate the CNC process for also needing to carry out after thin-wall part die casting in the prior art to mating surface, reach and avoid thin-wall part from being deformed in CNC process, and avoid thin-wall part that the purpose of ejection deformation occurs in press casting procedure.
Description
Technical field
The present invention relates to machinery manufacturing technology field, more particularly to a kind of die casting for thin-wall part die cast,
And a kind of thin-wall part moulding process, wherein, described " thin-wall part " each means Rou Hou≤1mm product herein.
Background technology
Shaping characteristic is designed according to traditional die casting, because CNC (Computer numerical control, computer number
Word controls lathe) machining accuracy is high, typically can be by product mating surface by CNC machine-shapings, and the meeting when design of Die Casting makes
0.2-0.3mm allowance is left, while for CNC (product clamping is fixed) easy to process, the end face of surplus can added,
Increase an auxiliary step, generally, the size of auxiliary step is 8mm × 8mm × 0.8mm, and its advantage includes：①CNC
Product clamping is facilitated to fix during processing；2. thimble can be arranged on auxiliary step, is easy to product to eject.
But, these traditional design advantages are for thin-wall part (herein, thin-wall part refers to Rou Hou≤1mm product) product
For, especially as the product of curved surface, spherical shape is fatal shortcoming, yielding is the maximum shortcoming of thin-wall part, and these set
Meter feature all can be to thin-wall part product in die casting section, CNC processing sections increase deflection.
During hemispherical thin-walled assembly parts (meat thickness≤1mm) project of exploitation, all entries phase product after processing is found
Examination assembling stage occurs seriously assembling unstable phenomenon, and deformation of products is then the unstable main cause of Product Assembly.
Therefore, the deflection of thin-wall part product how is reduced, is that current those skilled in the art technology urgently to be resolved hurrily is asked
Topic.
The content of the invention
In view of this, it is an object of the invention to provide a kind of die casting and one kind for thin-wall part die cast is thin
Wall pieces moulding process, can improve the problem of thin-wall part die casting is deformed.
To achieve the above object, the present invention provides following technical scheme：
A kind of die casting for thin-wall part die cast, the surface texture and chi of the mating surface of the thin-wall part finished product
It is very little, it is molded by the die casting；
Flat thimble is provided with the die casting, the flat thimble is arranged in the die casting and the thin-wall part
The corresponding position of exhaust end.
Preferably, the thin-wall part is hemispherical thin-wall part.
Preferably, the thin-wall part is lid or camera lower cover on camera.
Preferably, the both sides of the exhaust end of the thin-wall part are respectively the first mating surface and the second mating surface；
On front mould in the die casting, position corresponding with first mating surface and second mating surface, point
Cinder ladle and first row air flue are not opened up.
Preferably, in above-mentioned die casting, the exhaust entrance of the first row air flue is provided with radius for 0.35mm extremely
0.5mm fillet；
And/or, the cinder ladle entrance of the cinder ladle is provided with the fillet that radius is 0.35mm to 0.5mm.
Preferably, the both sides of the thin-wall part, which are respectively arranged with, picks up the ears；
In the die casting, with corresponding position of being picked up the ears described in two, three to five second row air flues are offered respectively.
Preferably, in the die casting, with corresponding position of being picked up the ears described in two, two exhausts are also offered respectively
Groove.
Preferably, it is provided with elliptical aperture on the finished product of the thin-wall part；
In the die casting, position corresponding with the elliptical aperture, plus gap bridge are tamped.
A kind of thin-wall part moulding process, including：
Die cast is carried out to the thin-wall part using the above die casting；
During die cast, the surface texture and size of the mating surface of thin-wall part finished product are molded by the die casting；
After die cast, ejected by flat thimble corresponding with the exhaust end position of the thin-wall part in the die casting
The thin-wall part.
Preferably, in above-mentioned thin-wall part moulding process, after the thin-wall part die cast, processed and be located at by CNC
Elliptical aperture on the thin-wall part central axis.
From above-mentioned technical proposal as can be seen that table corresponding with the mating surface of thin-wall part in the die casting that provides of the present invention
Face structure snd size, surface texture and size fit (consistent) with the mating surface of thin-wall part finished product, i.e. the pressure that the present invention is provided
Casting mould, by controlling die size, directly makes the surface texture and size of the mating surface of the thin-wall part of die cast be into
The surface texture and size of product, set allowance on a mating, CNC to add so as to eliminate thin-wall part in die cast
Work aids in all thimbles arrangement on step and step, and also needs to enter mating surface after eliminating thin-wall part die casting in the prior art
Capable CNC process, is finally reached and avoids thin-wall part from being deformed in CNC process, and avoid thin-wall part in die casting
The purpose of Cheng Fasheng ejection deformations.
In addition, the thin-wall part moulding process that the present invention is provided, using the above die casting to the thin-wall part
Die cast is carried out, the problem of thin-wall part die casting is deformed can be improved.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the finished product structure schematic diagram of camera lower cover provided in an embodiment of the present invention；
Fig. 2 is the assembling structure schematic diagram covered on camera lower cover provided in an embodiment of the present invention and camera；
The structural representation covered when Fig. 3 is die casting in the prior art on camera；
Fig. 4 is the structural representation covered on camera after die cast provided in an embodiment of the present invention；
Fig. 5 is the arrangement schematic diagram of camera lower cover provided in an embodiment of the present invention cinder ladle in die casting；
Fig. 6 is the distributed architecture schematic diagram of second row air flue and air discharge duct in die casting provided in an embodiment of the present invention.
Wherein：
Covered on A- camera lower covers, B- cameras,
1- mating surfaces, the mating surfaces of 11- first, the mating surfaces of 12- second,
2- original thimble platforms, 3- original exhaust ducts, the flat thimble platforms of 4-, 5- picks up the ears, 6- elliptical apertures,
At 7- cinder ladles, 8- second row air flues, 9- air discharge ducts, 10- punishments in advance,
Arrow is feed liquor direction, the elliptical aperture that dotted line is tamped to pass a bridge and processed without CNC.
Embodiment
, can the invention discloses a kind of die casting for thin-wall part die cast and a kind of thin-wall part moulding process
Improve the problem of thin-wall part die casting is deformed.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 to Fig. 6 is referred to, Fig. 1 is the finished product structure schematic diagram of camera lower cover provided in an embodiment of the present invention, and Fig. 2 is
The assembling structure schematic diagram covered on camera lower cover and camera provided in an embodiment of the present invention, Fig. 3 is die casting phase in the prior art
The structural representation covered on machine, Fig. 4 is the structural representation covered on camera after die cast provided in an embodiment of the present invention, Fig. 5
For the arrangement schematic diagram of camera lower cover provided in an embodiment of the present invention cinder ladle in die casting, Fig. 6 carries for the embodiment of the present invention
The distributed architecture schematic diagram of second row air flue and air discharge duct in the die casting of confession.
Through analysis and a large amount of checking data displays, the reason for causing deformation of products is mainly following 2 points：
First, product die casting causes deformation of products；
Second, CNC (Computer numerical control, computer digital control machine tool) processing cause product to become
Shape.
For this problem, into registering a special case for investigation, improvement group is tracked improvement to product, mainly by conventional die casting mold
Design optimizes and adjusted CNC Working positions, to improve deformation of products.
The embodiments of the invention provide a kind of die casting for thin-wall part die cast, wherein, thin-wall part finished product
The surface texture and size of mating surface 1, are molded by the die casting.Also, flat thimble is provided with the die casting, and (it is set
The position of flat thimble platform 4 in position corresponding diagram 4), the exhaust end that flat thimble is arranged in die casting with thin-wall part is corresponding
Position.
So as to visible, in die casting provided in an embodiment of the present invention surface texture corresponding with the mating surface of thin-wall part and
Size, surface texture and size fit (consistent) with the mating surface of thin-wall part finished product, i.e. die casting provided in an embodiment of the present invention
Mould, by controlling die size, the surface texture and size for directly making the mating surface of the thin-wall part of die cast are finished product
Surface texture and size so that eliminating thin-wall part sets allowance on a mating, CNC processing in die cast
All thimbles arrangement on step and step is aided in, and eliminates and also needs to carry out mating surface after thin-wall part die casting in the prior art
CNC process, be finally reached and avoid thin-wall part from being deformed in CNC process, and avoid thin-wall part in press casting procedure
Occurs the purpose of ejection deformation.
Specifically, in die casting provided in an embodiment of the present invention, because the surface texture and size of die casting are direct
The surface texture and size of the mating surface 1 of thin-wall part finished product are determined, so that, relative to die casting of the prior art, this hair
In the die casting that bright embodiment is provided：Face 0.15mm drops in rear mold, and copper public affairs are remake in die adjustment pillow position, and electric discharge change changes
Kind die casting deformation；Front mould is synchronously newly-increased to rest the head on plane, and die need to process removal 0.15mm.
Die casting provided in an embodiment of the present invention mainly for hemispherical thin-wall part, such as on hemispheric camera lid or
Camera lower cover (specifically refers to Fig. 1 to Fig. 5).But be not limited to that this, the die casting can also be applied to other thin-wall parts
The compression molding process of product, the present invention is not especially limited to this.
In a particular embodiment, the both sides of the exhaust end of thin-wall part are respectively the first mating surface 11 and the second mating surface 12.
Accordingly, on the front mould in die casting, with the first mating surface 11 and the corresponding position of the second mating surface 12, thickness is opened up respectively
For 0.4mm to 0.45mm cinder ladle entrance, and the cinder ladle 7 that thickness is 0.4mm to 0.5mm is opened up respectively, and thickness is 0.4mm
To 0.5mm first row air flue (thickness of preferably first row air flue is thickeied to 0.45mm).Further, due to exhaust entrance
(i.e. the exhaust root of first row air flue) and cinder ladle entrance easily collapse scarce, therefore are discharged into mouth and cinder ladle entrance increases radius and is respectively
0.35mm to 0.5mm fillet (preferably radius is 0.5mm), follow-up polishing is removed.It is finally reached improvement die casting deformation and is molded
Purpose.
In a particular embodiment, the both sides of thin-wall part are respectively arranged with one and pick up the ears 5.Accordingly, in die casting with two
Individual 5 corresponding positions of picking up the ears, it is the of 0.2mm to 0.6mm (preferably 0.35mm to 0.4mm) that three to five thickness are offered respectively
Two exhaust ducts 8 and air discharge duct 9.Preferably, as shown in fig. 6, each pick up the ears on 5, the second row air flue 8 being correspondingly arranged is arranged side by side
Have three, and air discharge duct 9 has been arranged side by side two, two air discharge ducts 9 be located at respectively the both sides of three second row air flues 8 and and its
It is arranged side by side.Because thin-wall part product surface has cold burden cracking, therefore increase second exhaust respectively in the position of picking up the ears of product both sides
Road 8 and air discharge duct 9, to improve die casting deformation and be molded.
In a particular embodiment, as shown in Figures 2 and 3, it is provided with elliptical aperture on the finished product of thin-wall part.Accordingly, die casting
Position corresponding with elliptical aperture in mould, plus gap bridge are tamped.That is thin-wall part is in die cast, and the elliptical aperture on thin-wall part added
Bridge is tamped, after die cast, and the punishment in advance in the elliptical aperture is processed by CNC remove again, to obtain the elliptical aperture.Change so as to reach
The purpose of kind die cast.
In addition, the embodiment of the present invention additionally provides a kind of thin-wall part moulding process, the technique includes：
Die cast is carried out to thin-wall part using the above die casting；
During die cast, the surface texture and size of the mating surface 1 of thin-wall part finished product are molded by die casting；
After die cast, thin-wall part is ejected by flat thimble corresponding with the exhaust end position of thin-wall part in die casting；
Elliptical aperture on thin-wall part central axis is processed by CNC.
In the prior art, it is in die casting with the seam of the mating surface correspondence position of thin-wall part, exhaust duct thickness
0.7mm, after by CNC process remove, easily occur die casting deformation and secondary operation deformation.
Compared with prior art, after die casting improving countermeasure provided in an embodiment of the present invention is implemented, by multiple authentication
And data statistics, have to production and significantly improve effect, specific advantage is as follows：
(1) due to eliminating the thimble at thin-wall part mating surface, thus thin-wall part product caused in die casting section drawing-die deformation,
The problems such as ejection deformation, is largely improved, while product can just be come out in die casting section deformation with fit-up inspection, greatly
The big convenience and promptness for improving product examination；
(2) due to eliminating the CNC manufacturing procedures for the mating surface of thin-wall part product, so as to lower CNC processing
Bring product secondary operation deformation, while or CNC processing reduce the cost；
(3) due to setting fillet, therefore thin-wall part formed product is full, and exhaust cinder ladle position is difficult to collapse scarce, and product can be significantly
There is the bad order rate such as cold burden, cracking in attenuating；
(4) thin-wall part product strength is high, and fine final vacuum, cinder ladle position are difficult to collapse scarce, and appearance is good.
Specifically, in order to save manufacturing cost, die casting provided in an embodiment of the present invention can be by of the prior art
Die casting transformation is formed.Because homogeneous property of each die casting process of each die casting manufactures two identical thin-wall part productions
Product, therefore mould optimization is specific as follows：
A) flat top at product increase by 2, flat top at totally 4 in mould, improvement die casting is deformed.
B) cancel altogether cancelling in thimble at 4 (four former thimble platforms 2 in its position corresponding diagram 3), mould on product and pushed up at 8
Pin, improves die casting deformation.
C) thimble platform at 2 (the former thimble platform 2 of two of product liquid feeding end in its position corresponding diagram 3), mould are cancelled in product
In at totally 4, need to freeze trim entrance, improve die casting deformation.
D) front mould is opened up in exhaust entrance at 2 (thickness may be configured as 0.35mm), mould at cinder ladle at 4 totally, and die is needed
CNC is processed, and improves die casting deformation.
E) thimble (the former thimble platform 2 of two of product exhaust end in its position corresponding diagram 3) at rear mold cinder ladle position increase by 2,
Adjust simultaneously in cinder ladle position size, mould at totally 4, optimization cinder ladle ejection improves die casting deformation.
F) product mating surface is gone out by mould, and rear mold drop face 0.15mm, die need to adjust pillow position, remake copper public affairs, electric discharge
Change, improves die casting deformation.
G) front mould is synchronously newly-increased rests the head on plane, and die need to process removal 0.15mm, improve die casting deformation.
H) the exhaust thickness of product both sides first row air flue is thickeied to 0.45mm, and cinder ladle entrance is increased, optimization product cold burden,
Cracking, improves die cast at totally 4 in mould.
I) exhaust entrance easily collapses scarce, increases R0.5MM fillets, improves die cast at totally 4 in mould.
J) totally 12 second row air flues 8, and 8 air discharge ducts in mould, optimization product cold burden, cracking, improvement is cast into
Type.
K) elliptical aperture passes a bridge in product open-minded, in mould at totally 2, optimization product cold burden, cracking improvement are cast into
Type.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of die casting for thin-wall part die cast, it is characterised in that the mating surface (1) of the thin-wall part finished product
Surface texture and size, are molded by the die casting；
Flat thimble is provided with the die casting, the flat thimble is arranged on the row in the die casting with the thin-wall part
The corresponding position in gas end.
2. die casting according to claim 1, it is characterised in that the thin-wall part is hemispherical thin-wall part.
3. die casting according to claim 2, it is characterised in that the thin-wall part is lid or camera lower cover on camera.
4. die casting according to claim 3, it is characterised in that the both sides difference of the exhaust end of the thin-wall part
For the first mating surface (11) and the second mating surface (12)；
On front mould in the die casting, position corresponding with first mating surface (11) and second mating surface (12)
Put, cinder ladle (7) and first row air flue are opened up respectively.
5. die casting according to claim 4, it is characterised in that the exhaust entrance of the first row air flue is provided with half
Footpath is 0.35mm to 0.5mm fillet；
And/or, the cinder ladle entrance of the cinder ladle (7) is provided with the fillet that radius is 0.35mm to 0.5mm.
6. die casting according to claim 3, it is characterised in that the both sides of the thin-wall part, which are respectively arranged with, picks up the ears
(5)；
In the die casting, with (5) corresponding position of being picked up the ears described in two, three to five second row air flues are offered respectively
(8)。
7. die casting according to claim 6, it is characterised in that in the die casting, with picking up the ears (5) described in two
Corresponding position, also offers two air discharge ducts (9) respectively.
8. die casting according to claim 3, it is characterised in that be provided with elliptical aperture on the finished product of the thin-wall part；
In the die casting, position corresponding with the elliptical aperture, plus gap bridge are tamped.
9. a kind of thin-wall part moulding process, it is characterised in that including：
Die cast is carried out to the thin-wall part using the die casting as described in claim any one of 1-8；
During die cast, the surface texture and size of the mating surface (1) of thin-wall part finished product are molded by the die casting；
After die cast, ejected by flat thimble corresponding with the exhaust end position of the thin-wall part in the die casting described
Thin-wall part.
10. thin-wall part moulding process according to claim 9, it is characterised in that after the thin-wall part die cast, pass through
CNC processes the elliptical aperture on the thin-wall part central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333580.XA CN106944601B (en) | 2017-05-12 | 2017-05-12 | Die-casting die for die-casting forming of thin-wall part and thin-wall part forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333580.XA CN106944601B (en) | 2017-05-12 | 2017-05-12 | Die-casting die for die-casting forming of thin-wall part and thin-wall part forming process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106944601A true CN106944601A (en) | 2017-07-14 |
| CN106944601B CN106944601B (en) | 2022-09-16 |
Family
ID=59478506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710333580.XA Active CN106944601B (en) | 2017-05-12 | 2017-05-12 | Die-casting die for die-casting forming of thin-wall part and thin-wall part forming process |
Country Status (1)
| Country | Link |
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| CN (1) | CN106944601B (en) |
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|---|---|---|---|---|
| CN2098339U (en) * | 1991-06-25 | 1992-03-11 | 西安航空电气公司 | Precision diecasting mold for making thin walled complex casing |
| JP2000225452A (en) * | 1999-02-03 | 2000-08-15 | Honda Motor Co Ltd | Structure of metallic mold for casting |
| JP2008097025A (en) * | 2007-11-22 | 2008-04-24 | Fujifilm Corp | Camera |
| US20090260773A1 (en) * | 2005-08-11 | 2009-10-22 | Yamaha Hatsudoki Kabushiki Kaisha | Die casting mold and method of manufacturing and casting the same |
| CN101698226A (en) * | 2008-05-19 | 2010-04-28 | 施小弟 | Aluminum alloy die-casting technological method for fan-shaped support |
| CN201913226U (en) * | 2011-01-04 | 2011-08-03 | 深圳市湘联金属制品有限公司 | Moulding entrance structure of die casting die |
| CN204308164U (en) * | 2014-11-14 | 2015-05-06 | 广东铭利达科技有限公司 | Top cover die casting |
| CN105945255A (en) * | 2016-07-13 | 2016-09-21 | 顾莹 | Thin-wall part die casting mold and die casting molding equipment |
| CN206839112U (en) * | 2017-05-12 | 2018-01-05 | 东莞宜安科技股份有限公司 | A kind of die casting for thin-wall part die cast |
-
2017
- 2017-05-12 CN CN201710333580.XA patent/CN106944601B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098339U (en) * | 1991-06-25 | 1992-03-11 | 西安航空电气公司 | Precision diecasting mold for making thin walled complex casing |
| JP2000225452A (en) * | 1999-02-03 | 2000-08-15 | Honda Motor Co Ltd | Structure of metallic mold for casting |
| US20090260773A1 (en) * | 2005-08-11 | 2009-10-22 | Yamaha Hatsudoki Kabushiki Kaisha | Die casting mold and method of manufacturing and casting the same |
| JP2008097025A (en) * | 2007-11-22 | 2008-04-24 | Fujifilm Corp | Camera |
| CN101698226A (en) * | 2008-05-19 | 2010-04-28 | 施小弟 | Aluminum alloy die-casting technological method for fan-shaped support |
| CN201913226U (en) * | 2011-01-04 | 2011-08-03 | 深圳市湘联金属制品有限公司 | Moulding entrance structure of die casting die |
| CN204308164U (en) * | 2014-11-14 | 2015-05-06 | 广东铭利达科技有限公司 | Top cover die casting |
| CN105945255A (en) * | 2016-07-13 | 2016-09-21 | 顾莹 | Thin-wall part die casting mold and die casting molding equipment |
| CN206839112U (en) * | 2017-05-12 | 2018-01-05 | 东莞宜安科技股份有限公司 | A kind of die casting for thin-wall part die cast |
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| Publication number | Publication date |
|---|---|
| CN106944601B (en) | 2022-09-16 |
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