CN108127080A - A kind of composite casting core aluminium alloy Rapid casting process method - Google Patents

A kind of composite casting core aluminium alloy Rapid casting process method Download PDF

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Publication number
CN108127080A
CN108127080A CN201711299041.5A CN201711299041A CN108127080A CN 108127080 A CN108127080 A CN 108127080A CN 201711299041 A CN201711299041 A CN 201711299041A CN 108127080 A CN108127080 A CN 108127080A
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CN
China
Prior art keywords
casting
core
mold
sand
chill
Prior art date
Application number
CN201711299041.5A
Other languages
Chinese (zh)
Inventor
周耀忠
柳森
程运超
Original Assignee
北京星航机电装备有限公司
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Publication date
Application filed by 北京星航机电装备有限公司 filed Critical 北京星航机电装备有限公司
Priority to CN201711299041.5A priority Critical patent/CN108127080A/en
Publication of CN108127080A publication Critical patent/CN108127080A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/10Cores; Manufacture or installation of cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y10/00Processes of additive manufacturing

Abstract

The invention belongs to aluminium alloy casting fields, and in particular to a kind of composite casting core aluminium alloy Rapid casting process method.After the completion of casting sand type and sand core three-dimensional G- Design, according to the design feature and performance requirement at each position of casting, sand mold (core) is subjected to block design, corresponding Modeling Material and formative technology are selected according to mechanical property requirements, sand core prepared by various different materials and technique finally is combined integral sand mold (core) pours into a mould again.The present invention is for the requirement of each portion structure feature of aluminum alloy junction component and different ontology mechanical properties, the mode for being resorted to casting mold carries out Foundry Production, it can realize the quick preparation of casting, and obtain the high-quality casting that internal soundness, size and performance are met the requirements.

Description

A kind of composite casting core aluminium alloy Rapid casting process method

Technical field

The invention belongs to aluminium alloy casting fields, and in particular to a kind of composite casting core aluminium for aluminium alloy sand mould casting closes Golden Rapid casting process method.

Background technology

Aluminium alloy sand mould casting traditional at present is divided into resin sand casting and clay-bonded sand casting, and resin sand is divided into as furans tree Fat, phenolic resin and phenol urethane resin, during traditional castings production, casting mold or casting core using a kind of fixed Modeling Material, Aluminum chill or steel chill progress Quench is used to ensure that the ontology of casting is strong for position of the casting section thickness more than more than 15mm Degree, and the position of certain structures complex (is there is boss etc. in type face on hyperboloid or face), chill difficult arrangement is directed to, easily Because the shape that is not inconsistent of casting and chill leads to the dimension overproof of casting, and obtain poor surface quality.

Resin sand is only capable of for the higher casting of certain bulk properties by increasing chill ruler since its heat-transfer capability is limited It is very little to improve bulk strength, but since running gate system position can not place chill, cause to set position and the placement of running gate system The position bulk properties of chill differ greatly, and difference is generated to casting overall performance.

Invention content

The present invention be directed to the requirement of each portion structure feature of aluminum alloy junction component and ontology mechanical property, in the sand of casting When type designs, corresponding Modeling Material and process is taken each position to carry out the preparation of sand core or sand mold, and finally combine It is poured into a mould again into the casting mold (core) needed for cast casting, so as to obtain the height that internal soundness, size and performance are met the requirements Quality casting.Specific technical solution is as follows:

A kind of composite casting core aluminium alloy Rapid casting process method, includes the following steps:

The first step, blank drawing draw, by design size drawing size and requirement drafting Casting Three-dimensional figure, and draw casting mold and Cast core entirety graphics;

Second step, casting mold core block design,

Casting mold and casting core graphics are carried out piecemeal to sand core according to the requirement of each portion structure feature and mechanical property to set Meter:

1) to big plane or the external surface position without boss, bead structures use wooden model or metal mould forming;

2) it is more than 15mm, the complicated position with rib or boss for casting local thickness, using machine plus stone Black type is processed into graphite core;

3) for carrying the big position of hyperboloid structure, mold input cost using 3D printing sand core straight forming;

4) position for reserving chill in advance is taken for the position that arrangement chill is needed on 3D printing sand core, size is less than The chill of 100mm takes machine that graphite chilling block or steel chill is added to carry out the chill of damascene process, size more than 100mm, using iron ore Sand fills re-entrant portion after being mixed with resin;

Third walks, and corresponding Modeling Material and formative technology are selected according to mechanical property requirements,

Prepared by the 4th step, casting mold core, will design the casting mold completed and casting core is processed preparation according to manufacturing process;

Each casting mold and casting core are molded, form the cavity needed for casting by the 5th step, molding;

6th step, is poured into a mould according to casting technique;

7th step, casting are molded, and after casting complete, casting mold and casting core are taken out to obtain corresponding casting.

Beneficial effects of the present invention

The present invention is resorted to for the requirement of each portion structure feature of aluminum alloy junction component and different ontology mechanical properties The mode of casting mold carries out Foundry Production, can realize the quick preparation of casting, and obtains internal soundness, size and performance satisfaction and want The high-quality casting asked.

Description of the drawings

Fig. 1 is composite casting core aluminium alloy Rapid casting process flow chart of the present invention;

Specific embodiment

The step of the method for the present invention, is further described below in conjunction with the accompanying drawings.

Embodiment 1

A kind of composite casting core aluminium alloy Rapid casting process method, includes the following steps

The first step, blank drawing are drawn,

Casting Three-dimensional figure is drawn by design size drawing size and requirement, and draws casting mold and casting core entirety graphics;

Second step, casting mold core block design,

Casting mold and casting core graphics are carried out piecemeal to sand core according to the requirement of each portion structure feature and mechanical property to set Meter;

Third walks, and selects material and technique,

According to table 1 corresponding Modeling Material, by taking ZL114A alloys as an example, casting ontology are selected according to mechanical property requirements It can require to select clay-bonded sand for the casting mould material of 280 ± 15 (MPa);The requirement of casting bulk properties is 300 ± 15 (MPa's) Casting mould material selects resin sand;Iron ore can be selected for the casting mould material of 320 ± 15 (MPa) in the requirement of casting bulk properties Sand;The requirement of casting bulk properties uses steel for the casting mould material of 340 ± 15 (MPa);The requirement of casting bulk properties for 350 ± The casting mould material of 15 (MPa) adds forming graphite using machine;

Corresponding manufacturing process is selected according to the preparation method of each material according to table 2, clay-bonded sand can be used formed in mould Method is molded;The method that die modeling can be used in resin sand, machine sums it up 3D printing is molded;The side of die modeling can be used in iron ore Method is molded;The method molding that machine adds can be used in steel;The method molding that die modeling can be used in graphite, machine adds;

The shrinking percentage of each casting mold and casting core is designed according to table 3, each material is shunk according to moulding process difference Rate has differences, and is shown in Table 3;

Prepared by the 4th step, casting mold core, will design the casting mold completed and casting core is processed preparation according to manufacturing process;

Each casting mold and casting core are molded, form the cavity needed for casting by the 5th step, molding;

6th step, cast, is poured into a mould according to casting technique;

7th step, casting molding,

After casting complete, casting mold and casting core are taken out to obtain corresponding casting.

Table 1:Bulk strength under ZL114A material different shaping materials

Table 2:Various different shaping materials for manufacturing method

Modeling Material Clay-bonded sand Resin sand Iron ore Steel Graphite Die modeling × Machine adds × × 3D printing × × × ×

Table 3:The shrinking percentage of the different preparation methods of different materials

Claims (1)

  1. A kind of 1. composite casting core aluminium alloy Rapid casting process method, which is characterized in that include the following steps:
    The first step, blank drawing are drawn,
    Casting Three-dimensional figure is drawn by design size drawing size and requirement, and draws casting mold and casting core entirety graphics;
    Second step, casting mold core block design,
    Casting mold and casting core graphics are subjected to block design according to the requirement of each portion structure feature and mechanical property to sand core:
    1) to big plane or the external surface position without boss, bead structures use wooden model or metal mould forming;
    2) it is more than 15mm, the complicated position with rib or boss for casting local thickness, using machine plus graphite mould It is processed into graphite core;
    3) for carrying the big position of hyperboloid structure, mold input cost using 3D printing sand core straight forming;
    4) position for reserving chill in advance is taken for the position that arrangement chill is needed on 3D printing sand core, size is less than 100mm's Chill takes machine that graphite chilling block or steel chill is added to carry out the chill of damascene process, size more than 100mm, using iron ore and resin Re-entrant portion is filled after mixing;
    Third walks, and corresponding Modeling Material and formative technology are selected according to mechanical property requirements,
    It is prepared by the 4th step, casting mold core,
    The casting mold completed will be designed and casting core is processed preparation according to manufacturing process;
    5th step, molding,
    Each casting mold and casting core are molded, form the cavity needed for casting;
    6th step, is poured into a mould according to casting technique;
    7th step, casting molding,
    After casting complete, casting mold and casting core are taken out to obtain corresponding casting.
CN201711299041.5A 2017-12-08 2017-12-08 A kind of composite casting core aluminium alloy Rapid casting process method CN108127080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711299041.5A CN108127080A (en) 2017-12-08 2017-12-08 A kind of composite casting core aluminium alloy Rapid casting process method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711299041.5A CN108127080A (en) 2017-12-08 2017-12-08 A kind of composite casting core aluminium alloy Rapid casting process method

Publications (1)

Publication Number Publication Date
CN108127080A true CN108127080A (en) 2018-06-08

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CN201711299041.5A CN108127080A (en) 2017-12-08 2017-12-08 A kind of composite casting core aluminium alloy Rapid casting process method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108994256A (en) * 2018-08-17 2018-12-14 安徽合力股份有限公司合肥铸锻厂 Casting production process based on 3D printing
CN111520250A (en) * 2020-03-31 2020-08-11 潍柴动力股份有限公司 Chilling block, cylinder cover with chilling block and engine with chilling block

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906801A2 (en) * 1995-11-09 1999-04-07 Toyota Jidosha Kabushiki Kaisha A method for laminate forming a sand mould and a method for producing a casting using the same
CN1597178A (en) * 2004-09-01 2005-03-23 刘志杰 Manufacturing method of large metal sheet shaping mould
CN101439390A (en) * 2008-12-30 2009-05-27 机械科学研究总院先进制造技术研究中心 Digitalization processing method of gypsum mould
CN101992272A (en) * 2009-08-12 2011-03-30 机械科学研究总院先进制造技术研究中心 Self-adaptive casting mould manufacture method for casting
CN104550710A (en) * 2014-12-12 2015-04-29 佛山市峰华卓立制造技术有限公司 Rapid manufacturing method of aluminum alloy cylinder block casting piece of embedded cylinder sleeve
CN105834374A (en) * 2016-02-02 2016-08-10 宁夏共享模具有限公司 3D printing containerless casting method of internal combustion engine frame
CN206435720U (en) * 2016-11-29 2017-08-25 中车长江车辆有限公司 A kind of casting core box manufactured for rail truck core

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0906801A2 (en) * 1995-11-09 1999-04-07 Toyota Jidosha Kabushiki Kaisha A method for laminate forming a sand mould and a method for producing a casting using the same
CN1597178A (en) * 2004-09-01 2005-03-23 刘志杰 Manufacturing method of large metal sheet shaping mould
CN101439390A (en) * 2008-12-30 2009-05-27 机械科学研究总院先进制造技术研究中心 Digitalization processing method of gypsum mould
CN101992272A (en) * 2009-08-12 2011-03-30 机械科学研究总院先进制造技术研究中心 Self-adaptive casting mould manufacture method for casting
CN104550710A (en) * 2014-12-12 2015-04-29 佛山市峰华卓立制造技术有限公司 Rapid manufacturing method of aluminum alloy cylinder block casting piece of embedded cylinder sleeve
CN105834374A (en) * 2016-02-02 2016-08-10 宁夏共享模具有限公司 3D printing containerless casting method of internal combustion engine frame
CN206435720U (en) * 2016-11-29 2017-08-25 中车长江车辆有限公司 A kind of casting core box manufactured for rail truck core

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108994256A (en) * 2018-08-17 2018-12-14 安徽合力股份有限公司合肥铸锻厂 Casting production process based on 3D printing
CN111520250A (en) * 2020-03-31 2020-08-11 潍柴动力股份有限公司 Chilling block, cylinder cover with chilling block and engine with chilling block

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Application publication date: 20180608