CN105312866A - Method for producing conformal cooling type die - Google Patents
Method for producing conformal cooling type die Download PDFInfo
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- CN105312866A CN105312866A CN201410366830.6A CN201410366830A CN105312866A CN 105312866 A CN105312866 A CN 105312866A CN 201410366830 A CN201410366830 A CN 201410366830A CN 105312866 A CN105312866 A CN 105312866A
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- conformal cooling
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- cooling
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Abstract
The invention relates to a method for producing a conformal cooling type die. The conformal cooling type die is formed by assembling at least two assemblies, wherein a surface shape of a conformal cooling channel is machined on one surface of at least one assembly, then all assemblies are assembled into the conformal cooling type die according to the assembly sequence, and the surface where the surface shape of the conformal cooling channel is machined and an adjacent surface are assembled in a diffusion welding connection manner. Compared with the prior art, the method has the advantages that machining is not limited by the shape, the precision is high and the like, so that design of the die is not limited by machining conditions, and the emphasis is laid on the demand for the cooling performance of the die.
Description
Technical field
The present invention relates to a kind of manufacture of mould, especially relate to a kind of for the manufacture of the injection mold with conformal cooling passage.
Background technology
Injection mold is mainly for the production of plastic cement products, and it can guarantee complete structure and the precise measure of plastic cement products, is therefore widely used in plastic cement parts production industry.In order to meet the requirement of injection molding technique to mold temperature, design cooling/heating systems is needed accurately to lower the temperature to mould and heat up.Design cooling duct is cooling means the most frequently used in current Design of Dies, namely utilizes the cooling water of flowing or solvent to lower the temperature to mould.
Conventional method is deep drilling cooling duct in mould.Owing to being subject to processing the restriction of technique, can only design production is the linear pattern cooling duct pressing close to mould.In the mould of casting, heating or cooling duct can cast out sometimes, but there is inner burr in passage, and the position of these passage opposing mold surfaces that can not know for sure.
In the mould that conventional method manufactures, the distribution of cooling duct, caliber and quantity are all restricted, and easily cause injecting products various piece can not Homogeneous cooling/intensification.The cooldown rate inequality of product very easily makes product generation warping deformation, thus reduces injection moulding efficiency and injecting products quality.
Injection mold conformal cooling passage is along with cavity body of mould change and the water channel of change, and it can make injecting products Homogeneous cooling/intensification in process of production, thus makes product avoid occurring warping deformation, and then improves production efficiency and the quality of injecting products.Because it is complex-shaped, dimension precision requirement is high, and traditional mould manufacturing method can not meet the manufacture of conformal cooling mould.
The present invention adopts novel manufacturing process manufacture to have the injection mold of conformal cooling channel, to improve production efficiency and the product quality of injection industry.
Summary of the invention
Object of the present invention is exactly the manufacture method providing a kind of easy to process, conformal cooling mould that efficiency is high in order to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions: a kind of manufacture method of conformal cooling mould, it is characterized in that, described conformal cooling mould is formed by the component assembling of at least two pieces, a face of at least one assembly wherein processes a surface configuration of conformal cooling passage, then each assembly is assembled into mould by assemble sequence, the assembling on the surface and adjacently situated surfaces that are wherein processed with cooling duct surface configuration adopts diffusion welding (DW) to be connected.
Described conformal cooling mould is processed in after the assembly of at least two pieces at mould segmentation, and segmentation conformal cooling mould becomes the mode of assembly, and at least one divisional plane is cross section or the longitudinal section of conformal cooling passage.
The processing of described conformal cooling channel surface shape adopts machining or high energy beam processing.
Described diffusion welding (DW) is carried out under being connected to vacuum or inert protective atmosphere, and temperature is at 0.5T
m-0.9T
mscope in, wherein T
mfor mold materials melting temperature.
Prior art is compared, and the present invention freely can manufacture and design cooling duct by mould demand, and not by the restriction of traditional diamond-making technique, therefore can meet the demand of injection mold to cooling/intensification completely, thus improve production efficiency and product quality.
Accompanying drawing explanation
Fig. 1 is the mold cavity containing conformal cooling channel components;
Fig. 2 is component design schematic diagram;
Fig. 3 is that conformal cooling channel surface shape processed by assembly 3;
Fig. 4 is conformal cooling component assembling schematic diagram and diffusion welding (DW) linkage interface Microstructure evolution figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
Example is cooled to mold cavity part.Mold cavity A shown in Fig. 1, this die cavity A are designed with a typical conformal cooling channel system B.As shown in Figure 1, conformal cooling passage is not straight type passage, but has the passage of angle of bend, this means that the method for traditional processing cooling duct is not suitable for the manufacture of conformal cooling mould.
Following methods is adopted to be prepared in the present embodiment:
(1) by the mold cavity shown in Fig. 1 according to being designed to 3 assemblies shown in Fig. 2.As shown in Figure 2, Design of Dies is the parts composition of two pieces along the cross section of conformal cooling passage of design or longitudinal section by the conformal cooling system of design: assembly 2 and assembly 3;
(2) machining or high energy beam processing mode is adopted to process cooling-water duct surface configuration or cooling-water duct at the corresponding surface of assembly 2 and assembly 3; (as shown in Figure 3)
(3) need connecting surface to carry out surface cleanliness process assembly 2 and assembly 3, namely dewater, oil removing, removing foul and removing oxide-film to reach the requirement of diffusion welding (DW) connecting surface;
(4) welding portion is not needed by assembly surface only to weld process;
(5) according to assemble sequence, conformal cooling assembly is assembled;
(6) under certain temperature, pressure, protection of the environment and time conditions, the assembly assembled is carried out Diffusion Welding;
(7) mould that butt welding connects carries out precision surface processing, and suitable heat treatment is to regulate the mechanical property of mould, and assembly 2 and assembly 3 weld rear corresponding surface and form complete conformal cooling passage 3;
(8) according to assemble sequence, conformal cooling assembly (assembly 2 and 3) and other assemblies (assembly 1) are carried out assembling the mold cavity formed with conformal cooling system.
Main points of the present invention are, along the cross section of cooling duct or longitudinal section, conformal cooling mould is designed to different assemblies, make the surface " exposure " of formation cooling duct.As shown in Figure 1, according to this novel manufacturing method, Design of Dies becomes 1,2,3 three assemblies, and wherein assembly 1 is mold cavity component, assembly 2, and 3 is, along the cross section of cooling duct, complex-shaped cooling duct is broken down into two finished surfaces.This will reduce difficulty and the processing cost of processing conformal cooling passage greatly, make mold designer will no longer be subject to processing the limitation of method for the design of cooling duct, but the cooling performance of more consideration moulds.
After design component, adopt machining process in the surface configuration of conformal cooling assembly surface processing cooling duct, as shown in Figure 3.Smooth and easy in order to ensure the flowing in cooling duct of cooling water or solvent, the surface processing accuracy of cooling duct is high, requires that surface, cooling duct is without burr.In addition, because the raising of cooling duct specific area can increase cooling effectiveness, therefore in limited mould volume, the specific area of cooling duct can be increased by the diameter reducing cooling duct, which increase the requirement to processing method.When common machine finishing cannot meet machining accuracy, high energy beam is processed into selection, as Laser Processing in Fig. 3.
3rd step of this method is assembled in order by conformal cooling assembly and forever links together.As shown in Fig. 4 (figure is left), to homogeneous component 2, the runner upper and lower surface of assembly 3 is assembled together.Owing to will pass into cooling water or cooling solvent in runner, require assembly 1,2 will carry out seamless link, otherwise cooling water or solvent will infiltrate other parts of mould, corrode mould, reduce the mold use life-span.For seamless link, brazing and diffusion welding is two kinds of current selections.The seamless link of soldering is to the selection of solder and strict, and it is expensive that this causes market being suitable for solder.The disadvantage of soldering is simultaneously that bonding strength is determined by the intensity of solder, and often solder intensity is well below mother metal, and this is no longer applicable for the mould that requirement of strength is higher.
In this method, diffusion welding method will be used for carrying out the connection of assembly.Diffusion welding (DW) is placed in the stove of vacuum (or inert atmosphere protection) by the assembly of assembling, and apply longitudinal pressure to assembly surface, under uniform temperature effect, (diffusion welding (DW) temperature is at 0.5T
m-0.9T
m(wherein T
mfor mold materials melting temperature) scope in, pressure and time with mould therefor material and product requirement different and different), by the diffusion of atom in micro-scaled range around contact surface, assembly is for good and all linked together.In diffusion welding (DW), require that assembly has good surface contact, therefore can carry out surface cleaning process to contact surface before assembly, as removed the water of contact surface, wet goods.Simultaneously for contact surface not needing the part of carrying out connecting only weld process.As Fig. 4 (figure is right) is depicted as microstructure evolution figure in diffusion welding (DW) connection procedure.Can see, As time goes on, the hole 4 of contact surface will fade away, form seamless link: under uniform temperature and pressure, As time goes on, the distortion of hole 4 is divided into three phases: distortion I-contact phase, the stage is passed in II diffusion-cross section, and III-interfacial voids disappears the stage.
After conformal cooling assembly forever links together, likely need to carry out subsequent heat treatment and surface finish fine finishining etc. to assembly, to meet final products in dimensional accuracy, the requirement of the aspect such as surface roughness and mechanical property.The conformal cooling assembly assembled will form mould with other assemblies of mould according to assemble sequence.
Claims (4)
1. the manufacture method of a conformal cooling mould, it is characterized in that, described conformal cooling mould is formed by the component assembling of at least two pieces, a face of at least one assembly wherein processes a surface configuration of conformal cooling passage, then each assembly is assembled into mould by assemble sequence, the assembling on the surface and adjacently situated surfaces that are wherein processed with cooling duct surface configuration adopts diffusion welding (DW) to be connected.
2. the manufacture method of a kind of conformal cooling mould according to claim 1, it is characterized in that, described conformal cooling mould is processed in after the assembly of at least two pieces at mould segmentation, segmentation conformal cooling mould becomes the mode of assembly, and at least one divisional plane is cross section or the longitudinal section of conformal cooling passage.
3. the manufacture method of a kind of conformal cooling mould according to claim 1, is characterized in that, the processing of described conformal cooling channel surface shape adopts machining or high energy beam processing.
4. the manufacture method of a kind of conformal cooling mould according to claim 1, is characterized in that, described diffusion welding (DW) is carried out under being connected to vacuum or inert protective atmosphere, and temperature is at 0.5T
m-0.9T
mscope in, wherein T
mfor mold materials melting temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366830.6A CN105312866A (en) | 2014-07-29 | 2014-07-29 | Method for producing conformal cooling type die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366830.6A CN105312866A (en) | 2014-07-29 | 2014-07-29 | Method for producing conformal cooling type die |
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| CN105312866A true CN105312866A (en) | 2016-02-10 |
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| CN201410366830.6A Pending CN105312866A (en) | 2014-07-29 | 2014-07-29 | Method for producing conformal cooling type die |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855819A (en) * | 2016-04-06 | 2016-08-17 | 湖北工业大学 | Manufacturing method for conformal cooling channels in steel injection mold |
| CN106944735A (en) * | 2017-03-29 | 2017-07-14 | 广东文达镁业科技股份有限公司 | A kind of diffusion in vacuum welding mould |
| CN109047521A (en) * | 2018-07-24 | 2018-12-21 | 南京工业职业技术学院 | A kind of conformal cooling water route and its manufacturing method |
| CN110181781A (en) * | 2019-06-10 | 2019-08-30 | 江苏博联硕焊接技术有限公司 | A kind of conformal cooling mold and its processing method |
| CN113427224A (en) * | 2020-03-23 | 2021-09-24 | 株式会社 Tnp | Method for manufacturing central column thermoforming mold with cooling unit |
| CN114054718A (en) * | 2021-07-27 | 2022-02-18 | 盘起工业株式会社 | Die casting mold component and method for manufacturing die casting mold component |
| CN115094242A (en) * | 2022-06-23 | 2022-09-23 | 山东有研国晶辉新材料有限公司 | Furnace cooling bed and manufacturing method and smelting device thereof |
| CN116175930A (en) * | 2021-09-08 | 2023-05-30 | 僖昴晰(上海)新材料有限公司 | Making a hollow fluid conduit in a mold and method of making a mold with a hollow fluid conduit |
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| DE10236523A1 (en) * | 2002-08-09 | 2004-02-19 | Behr Gmbh & Co. | Molding tool, e.g. for injection molding, is built up of layers into which interconnecting cooling channels are cut |
| US6824380B2 (en) * | 2002-11-12 | 2004-11-30 | Shu-Mei Lee | Balanced-flow structure for hot runner manifolds |
| CN102229227A (en) * | 2011-06-15 | 2011-11-02 | 深圳创维－Rgb电子有限公司 | Multilayer runner spreader plate with insert, hot runner system and insert manufacture method |
| CN103507239A (en) * | 2013-09-05 | 2014-01-15 | 广州中国科学院先进技术研究所 | Conformal cooling apparatus based on laser selective molding technology |
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2014
- 2014-07-29 CN CN201410366830.6A patent/CN105312866A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236523A1 (en) * | 2002-08-09 | 2004-02-19 | Behr Gmbh & Co. | Molding tool, e.g. for injection molding, is built up of layers into which interconnecting cooling channels are cut |
| US6824380B2 (en) * | 2002-11-12 | 2004-11-30 | Shu-Mei Lee | Balanced-flow structure for hot runner manifolds |
| CN102229227A (en) * | 2011-06-15 | 2011-11-02 | 深圳创维－Rgb电子有限公司 | Multilayer runner spreader plate with insert, hot runner system and insert manufacture method |
| CN103507239A (en) * | 2013-09-05 | 2014-01-15 | 广州中国科学院先进技术研究所 | Conformal cooling apparatus based on laser selective molding technology |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855819A (en) * | 2016-04-06 | 2016-08-17 | 湖北工业大学 | Manufacturing method for conformal cooling channels in steel injection mold |
| CN106944735A (en) * | 2017-03-29 | 2017-07-14 | 广东文达镁业科技股份有限公司 | A kind of diffusion in vacuum welding mould |
| CN109047521A (en) * | 2018-07-24 | 2018-12-21 | 南京工业职业技术学院 | A kind of conformal cooling water route and its manufacturing method |
| CN110181781A (en) * | 2019-06-10 | 2019-08-30 | 江苏博联硕焊接技术有限公司 | A kind of conformal cooling mold and its processing method |
| CN113427224A (en) * | 2020-03-23 | 2021-09-24 | 株式会社 Tnp | Method for manufacturing central column thermoforming mold with cooling unit |
| CN113427224B (en) * | 2020-03-23 | 2023-08-08 | 株式会社 Tnp | Method for manufacturing center post thermoforming mold with cooling unit |
| CN114054718A (en) * | 2021-07-27 | 2022-02-18 | 盘起工业株式会社 | Die casting mold component and method for manufacturing die casting mold component |
| CN116175930A (en) * | 2021-09-08 | 2023-05-30 | 僖昴晰(上海)新材料有限公司 | Making a hollow fluid conduit in a mold and method of making a mold with a hollow fluid conduit |
| CN115094242A (en) * | 2022-06-23 | 2022-09-23 | 山东有研国晶辉新材料有限公司 | Furnace cooling bed and manufacturing method and smelting device thereof |
| CN115094242B (en) * | 2022-06-23 | 2024-03-15 | 山东有研国晶辉新材料有限公司 | Furnace cooling bed, manufacturing method thereof and smelting device |
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Application publication date: 20160210 |
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