CN109277530A - A kind of production and processing method of 3D printing photosensitive resin model shell - Google Patents
A kind of production and processing method of 3D printing photosensitive resin model shell Download PDFInfo
- Publication number
- CN109277530A CN109277530A CN201811386133.1A CN201811386133A CN109277530A CN 109277530 A CN109277530 A CN 109277530A CN 201811386133 A CN201811386133 A CN 201811386133A CN 109277530 A CN109277530 A CN 109277530A
- Authority
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- China
- Prior art keywords
- cavity
- risers
- ingate
- dead head
- photosensitive resin
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of production and processing methods of 3D printing photosensitive resin model shell, 1) it is the following steps are included: design dead head system of risers: going out dead head system of risers according to photosensitive resin modelling, dead head system of risers is made of sprue cup, sprue and ingate；2) it makes dead head system of risers: dead head system of risers mold first being made according to dead head system of risers designed in step 1), recycle the building block in dead head system of risers Mold Making dead head system of risers, concrete operation method is, wax material is injected into dead head system of risers mold using wax injector, wax material uses low melting point casting wax, wax material injection is completed, and after wax material cooled and solidified, opens dead head system of risers mold.The present invention solves the problems, such as photosensitive resin model shell spalling, while also saving wax material, greatly reduces the learies of photosensitive resin model shell.
Description
Technical field
The present invention relates to casting technology fields, more particularly to a kind of production and processing of 3D printing photosensitive resin model shell
Method.
Background technique
With the fast development of aerospace, gas turbine industry, the speed of production of Melt casting is required more next
Higher, many prototypes, experimental machine casting need quick Fabrication, to be detected as ground run early period and properties, from
And determine whether researched and developed type meets corresponding performance requirement.Traditional model casting needs first to issue metal die, then
Wax-pattern model is made by metal die, the time for opening metal die will seriously affect up to one month or two months as long as
The manufacturing schedule of precision-investment casting.3D printing photosensitive resin model is formed using laser photocuring, and curing rate is fast, product
It is with short production cycle, it is not necessarily to cutting element and mold.Moulded dimension precision is high, and surface quality is good, can process construction profile complexity
Or molding model is difficult to using traditional means.It is directly used in model casting production with its model substitution wax-pattern, is currently the only
It is able to satisfy the quick cast method of precision-investment casting dimensional accuracy and surface quality requirements, is widely used in aerospace, combustion
The quick cast of the high precision casting testpieces such as gas-turbine produces.
But in actual casting production process, the mould group of photosensitive resin modelling always exists during dewaxing
The puzzlement of spalling shell.It is primarily due to be six face cube hollow structures inside photosensitive resin model, it is high in dewaxing kettle high temperature
Under conditions of pressure, when gases are heated, they expand inside photosensitive resin model.Traditional running and feeding system is that wax is solid as a result, pouring
Runner system is thick big relative to photosensitive resin model, and solid-state wax material melts relatively slow in running and feeding system, is formed by cavity
Limited, generated expanding gas, which cannot timely and effectively discharge, in photosensitive resin model causes shell spalling to scrap, must not
Again process is not walked, the schedule requirement of quick cast production has been seriously affected.
Summary of the invention
The object of the present invention is to provide a kind of production and processing methods of 3D printing photosensitive resin model shell, can be effective
Solve the technical issues of being previously mentioned in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of production and processing method of 3D printing photosensitive resin model shell comprising following steps:
1) it designs dead head system of risers: dead head system of risers, dead head feeding is gone out according to photosensitive resin modelling
System is made of sprue cup, sprue and ingate；
2) it makes dead head system of risers: first being mended according to dead head system of risers production dead head designed in step 1)
Compression system mold recycles the building block in dead head system of risers Mold Making dead head system of risers, concrete operations side
Method is wax material to be injected into dead head system of risers mold using wax injector, wax material uses low melting point casting wax, and wax material has injected
At after wax material cooled and solidified, opening dead head system of risers mold obtains the composition portion in following dead head system of risers
Part: sprue cup wax part and sprue wax part, sprue cup cover board wax part, ingate wax part, wherein the two sides of sprue wax part are distinguished
Be symmetrically arranged with ingate seam allowance, the outer end face of ingate seam allowance is matched with the left side of ingate wax part, ingate seam allowance to
Outer protrusion 2-3mm, sprue cup cover board wax part are solid construction, during sprue cup wax part, sprue wax part and ingate wax part be
Hollow structure and wall thickness is not less than 10mm；
3) photosensitive resin model group is welded: when production photosensitive resin model, the ingate on photosensitive resin model being welded flat
End face electrical knife scalds logical and forms cavity, and cavity diameter is not less than 10mm, by the lower end surface of sprue cup cover board wax part with pour
The upper surface group of cup wax part is welded together, and guarantees that sprue cup cover board wax part and sprue cup wax part are axially concentric, by ingate wax
The left side of part is welded together with ingate seam allowance group, dead head system of risers wax part is formed, by the right side of ingate wax part
It is welded together with the ingate welding platform group of photosensitive resin model, ultimately forms photosensitive resin pattern die group；
4) photosensitive resin mould group shell: it is coated with 6-10mm thickness slurry on the surface of photosensitive resin pattern die group, slurry is cold
But casting formwork is formed afterwards；
5) photosensitive resin mould group dewaxes: first getting through sprue cup cover board wax part, then photosensitive resin pattern die group is turned over
Come so that sprue cup wax part downward, and is placed in dewaxing kettle, the solid-state wax material in dead head system of risers melts rapidly generation
Abundant gas circulates cavity, and generated expanding gas is obtained in time by gas circulation cavity in photosensitive resin pattern die group
Effective release, obtains 3D printing photosensitive resin model shell after dewaxing.
The dead head system of risers mold includes upper mold and is set to the lower die matched immediately below upper mold and with upper mold,
Offer the first cavity in the upper mold, offer the second cavity in the lower die, sprue cup core pulling be set to the first cavity and
In second cavity, sprue cup cavity, sprue cup core pulling outer wall and the second sky are formed between sprue cup core pulling outer wall and the first cavity
Sprue cavity is formed between chamber, offers the third cavity vertical with the second cavity in the lower die, in the third cavity
The ingate seam allowance core pulling of ingate seam allowance, the inside of the lower die are formed when being equipped with for being poured in sprue cavity two sides
And be located at below sprue cavity and offer sprue cup cover board cavity, the side of the lower die is offered for placing ingate
4th cavity of core pulling, offers the 4th cavity for placing ingate core pulling between the upper die and lower die, and the described 4th
Ingate cavity is formed between cavity and ingate core pulling, sprue cup cavity, sprue cavity, sprue cup cover board cavity are poured with interior
It is connected between mouth cavity by the fluid hole road being opened in lower die.
Compared with prior art, the beneficial effects of the present invention are:
During dewaxing, the solid-state wax material in dead head system of risers, which melts rapidly, generates abundant cavity, photosensitive
Expanding gas in resin mould has obtained timely and effectively discharging, and has both solved the problems, such as photosensitive resin model shell spalling,
Wax material is also saved simultaneously, the learies of photosensitive resin model shell is greatly reduced, fundamentally ensure that photosensitive resin mould
The one-pass finished rate of type shell.
Detailed description of the invention
Fig. 1 is the schematic diagram of dead head system of risers of the present invention；
Fig. 2 is the schematic diagram of dead head system of risers mold of the present invention；
Fig. 3 is to form showing for each component of dead head system of risers made by dead head system of risers mold in the present invention
It is intended to；
Fig. 4 is the schematic diagram of photosensitive resin pattern die group in the present invention；
In figure, 1, sprue cup, 2, sprue, 3, ingate, 4, sprue cup wax part, 5, sprue wax part, 6, cast gate cup lid
Plate wax part, 7, ingate wax part, 8, ingate seam allowance, 9, photosensitive resin model, 10, ingate welding platform, 11, dead head benefit
Compression system wax part, 12, photosensitive resin pattern die group, 13, upper mold, 14, lower die, 15, sprue cup core pulling, 16, sprue cup cavity,
17, sprue cavity, 18, ingate seam allowance core pulling, 19, sprue cup cover board cavity, 20, ingate core pulling, 21, ingate sky
Chamber, 22, fluid hole road.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment one:
Refering to fig. 1 shown in -4, a kind of production and processing method of 3D printing photosensitive resin model shell comprising following step
It is rapid:
1) it designs dead head system of risers: dead head system of risers, dead head feeding is gone out according to photosensitive resin modelling
System is made of sprue cup 1, sprue 2 and ingate 3, and sprue cup 1, sprue 2 and ingate 3 are from top to bottom connected to one
It rises；
2) it makes dead head system of risers: first being mended according to dead head system of risers production dead head designed in step 1)
Compression system mold recycles the building block in dead head system of risers Mold Making dead head system of risers, concrete operations side
Method is wax material to be injected into dead head system of risers mold using wax injector, wax material uses low melting point casting wax, and wax material has injected
At after wax material cooled and solidified, opening dead head system of risers mold obtains the composition portion in following dead head system of risers
Part: sprue cup wax part 4, sprue wax part 5, sprue cup cover board wax part 6, ingate wax part 7, wherein two sides of sprue wax part 5
It is respectively symmetrically equipped with ingate seam allowance 8, the outer end face of ingate seam allowance 8 is matched with the left side of ingate wax part 7, ingate
Seam allowance 8 outwardly protrudes 2-3mm, and sprue cup cover board wax part 6 is solid construction, sprue cup wax part 4, sprue wax part 5 and ingate
Wax part 7 is hollow structure and wall thickness is not less than 10mm；
3) photosensitive resin model group is welded: when production photosensitive resin model 9, the ingate on photosensitive resin model 9 being welded
10 end face electrical knife of platform scalds logical and forms cavity, and cavity diameter is not less than 10mm, by the lower end surface of sprue cup cover board wax part 6
It is welded together with the upper surface group of sprue cup wax part 4, guarantees that sprue cup cover board wax part 6 is axial concentric with sprue cup wax part 4, it will be interior
The left side of cast gate wax part 7 is welded together with 8 groups of ingate seam allowance, dead head system of risers wax part 11 is formed, by ingate wax
10 groups of ingate welding platform of the right side of part 7 and photosensitive resin model 9 are welded together, and ultimately form photosensitive resin pattern die
Group 12；
4) 6-10mm thickness slurry, slurry photosensitive resin mould group shell: are coated on the surface of photosensitive resin pattern die group 12
Casting formwork is formed after cooling；
5) photosensitive resin mould group dewaxes: first getting through sprue cup cover board wax part 6, then photosensitive resin pattern die group 12 is overturn
Come over so that sprue cup wax part 4 downward, and is placed in dewaxing kettle, the solid-state wax material in dead head system of risers melts rapidly production
Abundant gas circulation cavity is given birth to, generated expanding gas is obtained by gas circulation cavity in photosensitive resin pattern die group 12
It timely and effectively discharges, 3D printing photosensitive resin model shell is obtained after dewaxing.
The dead head system of risers mold includes upper mold 13 and is set to immediately below upper mold 13 and matches with upper mold 13
Lower die 14, offer the first cavity in the upper mold 13, the second cavity offered in the lower die 14, sprue cup core pulling 15 is set
It is placed in the first cavity and the second cavity, forms sprue cup cavity 16, cast gate between 15 outer wall of sprue cup core pulling and the first cavity
Sprue cavity 17 is formed between cup 15 outer wall of core pulling and the second cavity, is offered in the lower die 14 vertical with the second cavity
Third cavity is formed in ingate seam allowance 8 when being equipped with for being poured in the third cavity in 17 two sides of sprue cavity
Cast gate seam allowance core pulling 18, the inside of the lower die 14 and the lower section for being located at sprue cavity 17 offer sprue cup cover board cavity
19, the side of the lower die 14 offers the 4th cavity for placing ingate core pulling 20, the upper mold 13 and lower die 14 it
Between offer the 4th cavity for placing ingate core pulling 20, formed between the 4th cavity and ingate core pulling 20 in pour
Mouth cavity 21, by opening up between sprue cup cavity 16, sprue cavity 17, sprue cup cover board cavity 19 and ingate cavity 21
It is connected in the fluid hole road 22 in lower die 14, wax material is by after injection dead head system of risers mold, and wax material is by fluid hole road 22
Full of sprue cup cavity 16, sprue cavity 17, sprue cup cover board cavity 19, ingate cavity 21 and sprue cavity 17 with
Space between ingate seam allowance core pulling 18, and then sequentially form sprue cup wax part 4, sprue wax part 5, sprue cup cover board wax part
6, ingate wax part 7 and ingate seam allowance 8.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (2)
1. a kind of production and processing method of 3D printing photosensitive resin model shell, which comprises the following steps:
1) it designs dead head system of risers: dead head system of risers, dead head system of risers is gone out according to photosensitive resin modelling
It is made of sprue cup, sprue and ingate；
2) it makes dead head system of risers: dead head feeding system first being made according to dead head system of risers designed in step 1)
It unites mold, recycles the building block in dead head system of risers Mold Making dead head system of risers, concrete operation method is,
Wax material is injected into dead head system of risers mold using wax injector, wax material uses low melting point casting wax, and wax material injection is completed, to
After wax material cooled and solidified, dead head system of risers mold is opened, the building block in following dead head system of risers: cast gate is obtained
Cup wax part and sprue wax part, sprue cup cover board wax part, ingate wax part, wherein the two sides of sprue wax part are respectively symmetrically equipped with
The outer end face of ingate seam allowance, ingate seam allowance is matched with the left side of ingate wax part, and ingate seam allowance outwardly protrudes 2-
3mm, sprue cup cover board wax part be solid construction, sprue cup wax part, sprue wax part and ingate wax part be hollow structure and
Wall thickness is not less than 10mm；
3) photosensitive resin model group is welded: when production photosensitive resin model, by the ingate welding platform end on photosensitive resin model
Face electrical knife scalds logical and forms cavity, and cavity diameter is not less than 10mm, by the lower end surface of sprue cup cover board wax part and sprue cup
The upper surface group of wax part is welded together, and guarantees that sprue cup cover board wax part and sprue cup wax part are axially concentric, by ingate wax part
Left side is welded together with ingate seam allowance group, dead head system of risers wax part is formed, by the right side of ingate wax part and light
The ingate welding platform group of quick resin mould is welded together, and ultimately forms photosensitive resin pattern die group；
4) photosensitive resin mould group shell: it is coated with 6-10mm thickness slurry on the surface of photosensitive resin pattern die group, after slurry is cooling
Form casting formwork；
5) photosensitive resin mould group dewaxes: first getting through sprue cup cover board wax part, then photosensitive resin pattern die group is turned makes
It obtains sprue cup wax part downward, and is placed in dewaxing kettle, it is abundant that the solid-state wax material in dead head system of risers melts rapidly generation
Gas circulate cavity, generated expanding gas is obtained timely and effective by gas circulation cavity in photosensitive resin pattern die group
Release, after dewaxing obtain 3D printing photosensitive resin model shell.
2. a kind of production and processing method of 3D printing photosensitive resin model shell according to claim 1, it is characterised in that:
The dead head system of risers mold includes upper mold and is set to the lower die matched immediately below upper mold and with upper mold, the upper mold
On offer the first cavity, the second cavity is offered in the lower die, sprue cup core pulling is set to the first cavity and the second cavity
In, sprue cup cavity, shape between sprue cup core pulling outer wall and the second cavity are formed between sprue cup core pulling outer wall and the first cavity
At sprue cavity, the third cavity vertical with the second cavity is offered in the lower die, is worn in the third cavity useful
In the ingate seam allowance core pulling of sprue cavity two sides formation ingate seam allowance, the inside of the lower die and positioned at straight when casting
Sprue cup cover board cavity is offered below running channel cavity, the side of the lower die offers for placing ingate core pulling
Four cavitys, offer the 4th cavity for placing ingate core pulling between the upper die and lower die, the 4th cavity with it is interior
Between cast gate core pulling formed ingate cavity, sprue cup cavity, sprue cavity, sprue cup cover board cavity and ingate cavity it
Between be connected by the fluid hole road being opened in lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386133.1A CN109277530A (en) | 2018-11-20 | 2018-11-20 | A kind of production and processing method of 3D printing photosensitive resin model shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811386133.1A CN109277530A (en) | 2018-11-20 | 2018-11-20 | A kind of production and processing method of 3D printing photosensitive resin model shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109277530A true CN109277530A (en) | 2019-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811386133.1A Pending CN109277530A (en) | 2018-11-20 | 2018-11-20 | A kind of production and processing method of 3D printing photosensitive resin model shell |
Country Status (1)
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| CN (1) | CN109277530A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761027A (en) * | 2020-05-21 | 2020-10-13 | 洛阳双瑞精铸钛业有限公司 | Process method for manufacturing titanium and titanium alloy precision castings through photosensitive resin mold |
| CN111906254A (en) * | 2020-08-27 | 2020-11-10 | 宁国市四方钢球模具设备有限公司 | Casting cup for liquid-through mold |
| CN112893773A (en) * | 2021-02-23 | 2021-06-04 | 天长市兴宇铸造有限公司 | Module wax part structure for upper and lower shell castings in coupler and draft gear and tree assembling process thereof |
| CN113275515A (en) * | 2021-04-30 | 2021-08-20 | 西安斯瑞先进铜合金科技有限公司 | Rapid pump body investment casting method based on photocuring additive technology |
| CN115007799A (en) * | 2022-06-09 | 2022-09-06 | 上海联泰科技股份有限公司 | Method for inhibiting investment roasting expansion of photosensitive resin for precision casting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761027A (en) * | 2020-05-21 | 2020-10-13 | 洛阳双瑞精铸钛业有限公司 | Process method for manufacturing titanium and titanium alloy precision castings through photosensitive resin mold |
| CN111906254A (en) * | 2020-08-27 | 2020-11-10 | 宁国市四方钢球模具设备有限公司 | Casting cup for liquid-through mold |
| CN111906254B (en) * | 2020-08-27 | 2024-10-01 | 宁国市四方钢球模具设备有限公司 | Casting cup for liquid mold |
| CN112893773A (en) * | 2021-02-23 | 2021-06-04 | 天长市兴宇铸造有限公司 | Module wax part structure for upper and lower shell castings in coupler and draft gear and tree assembling process thereof |
| CN112893773B (en) * | 2021-02-23 | 2024-01-26 | 天长市兴宇铸造有限公司 | Module wax component structure for upper and lower shell castings in hook buffer device and tree assembling process thereof |
| CN113275515A (en) * | 2021-04-30 | 2021-08-20 | 西安斯瑞先进铜合金科技有限公司 | Rapid pump body investment casting method based on photocuring additive technology |
| CN113275515B (en) * | 2021-04-30 | 2022-07-29 | 西安斯瑞先进铜合金科技有限公司 | Rapid pump body investment casting method based on photocuring additive technology |
| CN115007799A (en) * | 2022-06-09 | 2022-09-06 | 上海联泰科技股份有限公司 | Method for inhibiting investment roasting expansion of photosensitive resin for precision casting |
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Application publication date: 20190129 |
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