CN108580803A - A kind of nearly manufacturing process of sand mold model based on the principle of stratification - Google Patents
A kind of nearly manufacturing process of sand mold model based on the principle of stratification Download PDFInfo
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- CN108580803A CN108580803A CN201810351950.7A CN201810351950A CN108580803A CN 108580803 A CN108580803 A CN 108580803A CN 201810351950 A CN201810351950 A CN 201810351950A CN 108580803 A CN108580803 A CN 108580803A
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- sand mold
- nearly
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- 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
-
- 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)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Casting Devices For Molds (AREA)
Abstract
A kind of nearly manufacturing process purpose of sand mold model based on the principle of stratification is to realize the nearly forming of sand mold digitlization.It realizes according to the following steps：（1）According to sand mold threedimensional model z to size lzIt requires to determine nearly forming accuracy Δ z with nearly forming accuracy；（2）By the nearly shaped region of sand mold threedimensional model along z to being divided into m layers, wherein m=lz/ Δ z, each layer are respectively designated as B1..., Bk..., Bm；（3）Fills unit array is by p × q subelement Ui,jComposition, filling subelement Ui,jAlong z to being incremented by for filling sand mold cavity since the planes of z=0, increasing height is Δ z；（4）If filling subelement Ui,jWith B1, B2..., Bk‑1Without intersection, and and BkThere is intersection, then fills subelement Ui,jIncreasing height is hi,j=Δz×（k‑1）；（5）According to step（4）, fills unit array is obtained successively respectively fills subelement Ui,jHeight H=.The present invention can make closely to shape sand mold cavity in error range quickly approaches target sand mold cavity.
Description
Technical field
The method of the present invention is related to casting sand mold Modeling Technology, and in particular to a kind of sand mold model based on the principle of stratification is close
Manufacturing process.
Background technology
Due to the increasingly enhancing of environmental problem getting worse and people's environmental consciousness, it is green that one has been started in the world
The tide of color manufacture, promotes the development of green manufacture technology.Green manufacturing is as a kind of low entropy Manufacturing Models, from product
Design, manufacture, use scrap meet always in whole life cycle environmental pollution minimum requirement；To ecological environment without
Evil or harm are few, achieve the purpose that environmental protection；And, energy consumption low advantage high with utilization rate of raw materials.
Application of the digitlization containerless casting Precision Forming Technology in sand mold forming greatly improves casting field casting mold
The greenization of manufacture is horizontal, saves wooden model or metal mold manufacturing process, saves a large amount of raw material.But digitize containerless casting essence
Close forming technique reduces the life of sand mold mass in the big problem of sand lump cutting process Sand removal amount to a certain extent
Efficiency is produced, the popularization during the technology is produced in enormous quantities in sand mold is seriously restrict.To solve the above problems, proposing a kind of base
In the nearly manufacturing process of sand mold model of the principle of stratification, realizes that sand mold closely shapes, shortens the sand mold production time, improve production efficiency,
Energy-saving sand material and the energy.
The present invention provides a kind of nearly manufacturing process of sand mold model based on the principle of stratification for sand mold closely forming.
Invention content
The present invention provides a kind of nearly manufacturing process of sand mold model based on the principle of stratification, it is therefore intended that realizes sand mold digitlization
Flexible press against proximal forming, effectively reduces molding sand waste, improves sand mold forming efficiency and quality.
In order to achieve the above objectives, the present invention adopts the following technical scheme that realization.
It is respectively a × p, b × q and l by length, width and heightzSand mold CAD 3D model be divided into m layers, every layer along short transverse
Height is Δ z, and it is B to name each layer respectively1..., Bk..., Bm；Wherein, m ∈ Z, 1≤k≤m.
Fills unit array is a × b subelements U by p × q sectional areai,jComposition, filling subelement Ui,jFrom the planes of z=0
Start along z to being incremented by for filling sand mold cavity, increasing height is Δ z；Wherein, p ∈ Z, q ∈ Z, 1≤i≤p, 1≤j≤q.
It is filled subelement Ui,jWhether with B1, B2..., Bk-1There is the logic judgment of intersection；If with BkThere is intersection, then fills out
Fill subelement Ui,jIncreasing height is hi,j=Δz×（k-1）；If without intersection, it is filled subelement Ui,jWhether with BkThere is friendship
The logic judgment of collection；The rest may be inferred.
According to logic judgment as a result, obtaining fills unit array successively respectively fills subelement Ui,jHeight H=。
Into fills unit array tune shape process.
Brief description
Fig. 1 is a kind of nearly manufacturing process schematic diagram of sand mold model based on the principle of stratification, and 1 is the sand mold floor height divided according to Δ z,
2 be sand mold model fills unit.
Specific implementation mode
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention relates to a kind of nearly manufacturing process of sand mold model based on the principle of stratification.
As shown in Figure 1, it is respectively filling out for 80mm, 80mm and alterable height that sand mold model fills unit array 1, which is length, width and height,
Fill subelement Ui,j10 × 8 arrays of composition, wherein 1≤i≤10,1≤j≤8.
Sand mold model length, width and height are respectively 800mm, 640mm and 300mm, and 300 layers are divided into along short transverse, per layer height
For 1mm, i.e., close forming accuracy is 1mm；It is named for each layer, is followed successively by B from top to bottom1..., Bk..., B300；Wherein, k ∈ Z, 1≤
k≤300。
Fill subelement Ui,jAlong z to incrementally for filling sand mold cavity, increasing height 1mm since the planes of z=0.
It is filled subelement Ui,jWhether with B1, B2..., Bk-1There is the logic judgment of intersection；If with BkThere is intersection, then fills out
Fill subelement Ui,jIncreasing height is hi,j=Δz×（k-1）；If without intersection, it is filled subelement Ui,jWhether with BkThere is friendship
The logic judgment of collection；The rest may be inferred.
Fills unit array is obtained successively respectively fills subelement Ui,jHeight H=QUOTE 。
Into fills unit array tune shape process.
Claims (2)
1. a kind of nearly manufacturing process of sand mold model based on the principle of stratification, it is characterised in that：
（1）It is respectively a × p, b × q and l according to length, width and heightzSand mold CAD 3D model z to size lzWith the requirement of nearly forming accuracy
Determine nearly forming accuracy Δ z；
（2）By the nearly shaped region of sand mold CAD 3D model along z to being divided into m layers, wherein m=lz/ Δ z, each layer are respectively designated as
B1..., Bk..., Bm；Wherein, m ∈ Z, 1≤k≤m；
（3）Fills unit array is respectively a, b and h by p × q length, width and heighti,jSubelement Ui,jComposition, filling subelement Ui,j
Along z to being incremented by for filling sand mold cavity since the planes of z=0, increasing height is Δ z；Wherein, p ∈ Z, q ∈ Z, 1≤i≤p, 1
≤j≤q。
2. according to claim 1, a kind of nearly manufacturing process of sand mold model based on the principle of stratification, it is characterised in that：
（1）If filling subelement Ui,jWith B1, B2..., Bk-1Without intersection, and and BkThere is intersection, then fills subelement Ui,jIt is incremented by
Height is hi,j=Δz×（k-1）；
（2）According to step（4）, fills unit array is obtained successively respectively fills subelement Ui,jHeight H=；
（3）Into fills unit array tune shape process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351950.7A CN108580803B (en) | 2018-04-19 | 2018-04-19 | Sand mold model near-forming method based on layering principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351950.7A CN108580803B (en) | 2018-04-19 | 2018-04-19 | Sand mold model near-forming method based on layering principle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108580803A true CN108580803A (en) | 2018-09-28 |
| CN108580803B CN108580803B (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810351950.7A Active CN108580803B (en) | 2018-04-19 | 2018-04-19 | Sand mold model near-forming method based on layering principle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045149A (en) * | 2020-07-30 | 2020-12-08 | 北京机科国创轻量化科学研究院有限公司 | Multi-stage flexible extrusion forming method for sand mold |
| CN113290203A (en) * | 2021-04-26 | 2021-08-24 | 第一拖拉机股份有限公司 | Casting method using flexible mold and deformation casting pattern |
| CN114289689A (en) * | 2021-12-28 | 2022-04-08 | 沈阳铸造研究所有限公司 | Method for manufacturing rolling compaction near-forming sand mold |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10317441A1 (en) * | 2003-04-16 | 2004-11-04 | Bayerische Motoren Werke Ag | Device for casting a blank for a structural component, especially a metal tool with a base comprising a number of rectangular elements useful in casting operations for production of structural components |
| CN102773420A (en) * | 2012-08-20 | 2012-11-14 | 机械科学研究总院先进制造技术研究中心 | Combined die moulding method of sand mould |
| CN103600028A (en) * | 2012-12-31 | 2014-02-26 | 机械科学研究总院先进制造技术研究中心 | Sand mold composite molding method |
| CN105665633A (en) * | 2016-01-26 | 2016-06-15 | 机械科学研究总院先进制造技术研究中心 | Sand mould extrusion and cutting integrated compound molding method |
| CN105665631A (en) * | 2016-01-26 | 2016-06-15 | 机械科学研究总院先进制造技术研究中心 | Sand mould digitization flexible extrusion near-net forming optimization method based on search algorithm |
-
2018
- 2018-04-19 CN CN201810351950.7A patent/CN108580803B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10317441A1 (en) * | 2003-04-16 | 2004-11-04 | Bayerische Motoren Werke Ag | Device for casting a blank for a structural component, especially a metal tool with a base comprising a number of rectangular elements useful in casting operations for production of structural components |
| CN102773420A (en) * | 2012-08-20 | 2012-11-14 | 机械科学研究总院先进制造技术研究中心 | Combined die moulding method of sand mould |
| CN103600028A (en) * | 2012-12-31 | 2014-02-26 | 机械科学研究总院先进制造技术研究中心 | Sand mold composite molding method |
| CN105665633A (en) * | 2016-01-26 | 2016-06-15 | 机械科学研究总院先进制造技术研究中心 | Sand mould extrusion and cutting integrated compound molding method |
| CN105665631A (en) * | 2016-01-26 | 2016-06-15 | 机械科学研究总院先进制造技术研究中心 | Sand mould digitization flexible extrusion near-net forming optimization method based on search algorithm |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045149A (en) * | 2020-07-30 | 2020-12-08 | 北京机科国创轻量化科学研究院有限公司 | Multi-stage flexible extrusion forming method for sand mold |
| CN113290203A (en) * | 2021-04-26 | 2021-08-24 | 第一拖拉机股份有限公司 | Casting method using flexible mold and deformation casting pattern |
| CN114289689A (en) * | 2021-12-28 | 2022-04-08 | 沈阳铸造研究所有限公司 | Method for manufacturing rolling compaction near-forming sand mold |
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| Publication number | Publication date |
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| CN108580803B (en) | 2020-08-11 |
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