CN110026557A - A kind of direct-writing device and forming method of the remelting of hybrid solid particle - Google Patents
A kind of direct-writing device and forming method of the remelting of hybrid solid particle Download PDFInfo
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- CN110026557A CN110026557A CN201910453783.1A CN201910453783A CN110026557A CN 110026557 A CN110026557 A CN 110026557A CN 201910453783 A CN201910453783 A CN 201910453783A CN 110026557 A CN110026557 A CN 110026557A
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- slurrying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
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- 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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- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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Abstract
The present invention relates to increases material manufacturing technology fields, disclose the direct-writing device and forming method of a kind of hybrid solid particle remelting, which includes feeding system, pulping system and extrusion system, and feeding system is configured as at least two solid particles of storage；Pulping system includes pulping device and multiple slurrying barrels, and pulping device can extend into slurrying barrel, so that the solid particle in slurrying barrel forms semi solid slurry；Extrusion system can extend into slurrying barrel, and semi solid slurry is squeezed out；Feeding system, pulping device and extrusion system are configured to corresponding with each slurrying barrel simultaneously, to be successively fed to each slurrying barrel, slurrying and extrusion movement, the apparatus structure is simple, it reduces costs, molded part even tissue reduces tissue defects and internal stress, significantly improves the quality of molded part, high production efficiency is suitable for large-scale production.The molded part even tissue of forming method preparation, formed precision are high.
Description
Technical field
The present invention relates to metal increases material manufacturing technology field more particularly to a kind of direct-writing devices of hybrid solid particle remelting
And forming method.
Background technique
Increases material manufacturing technology is utilization is powdered, Filamentous metal or plastics etc. based on a kind of digital model file
Adhesive material carrys out the technology of forming part by layer-by-layer printing.Metal increasing material manufacturing technique based on high energy beam current
Usually using high energy beam current as heat source, the printing equipment construction is complicated and equipment, material cost are high；Meanwhile it being swept in high energy beam current
It is larger to retouch molded part temperature gradient in forming process, tissue is easily made to generate defect and biggish internal stress.
A kind of efficient metal 3D printing device and method of the patent disclosure of Patent No. CN106925783A, by liquid gold
The preparation process and increasing material manufacturing forming process for belonging to slurry combine, and scheme is directly fed using metal bath, make it with liquid
The form of stream is rapidly cooled when continuously spraying printing using cooling medium, and passes through the movement of print head and forming board,
Complete print procedure.However in forming process, biggish solidification shrinkage can be generated by so that metal is become solid-state from liquid, be led
Cause molded part dimensional accuracy not high, tissue cannot be well controlled, and molded part will generate biggish internal stress.
The patent of Patent No. CN106623840A discloses a kind of alloy semi-solid spinning increasing material preparation facilities, will prepare
The process and increasing material manufacturing forming process of semi solid slurry combine, and save slurry transfer, forming is realized directly on forming board
Process.Its scheme is that molten metal is injected pulping device, is acted on by Quench forming core and obtains semi solid slurry, and passes through spinning pipe
Slurry is stacked into layer by layer and is moved on ground shaped platform by preset program, and then realizes that semisolid spinning increases material preparation.The party
Although method is consciously by spinning control appearance nuclear process, the preparation of semi solid slurry requires a large amount of uniform forming core cores
The heart, and need accurately to control holding temperature and soaking time grows up the control of behavior to primary particle with realizing, only logical
The chilling action of overwinding pressure pipe smooth domain will be difficult to prepare the controllable high viscosity semi solid slurry of flow behavior.And semisolid
Slurry is stacked into shaped platform layer by layer by individual pulping device slurrying, and by spinning pipe by spinning increasing material manufacturing equipment
On, the device production efficiency is low, is not suitable for producing on a large scale.
Based on the above issues, a kind of direct-writing device of hybrid solid particle remelting is proposed, structure is simple, molded part internal stress
Small, solidification shrinkage amount is small, improves the Forming Quality of molded part, and high production efficiency is suitable for large-scale production.
Summary of the invention
It is an object of the invention to propose the direct-writing device and forming method of a kind of hybrid solid particle remelting, in molded part
Stress is small, and solidification shrinkage amount is small, improves the Forming Quality of molded part.
To achieve this purpose, the present invention adopts the following technical scheme:
The present invention provides a kind of direct-writing device of hybrid solid particle remelting, comprising:
Feeding system, the feeding system are configured as at least two solid particles of storage；
Pulping system, the pulping system include pulping device and multiple slurrying barrels, and each slurrying barrel is respectively provided with
There is heating device, the pulping device is configured as protruding into the slurrying barrel, so that described solid in the slurrying barrel
Body particle forms semi solid slurry；
Extrusion system, the extrusion system are configured as protruding into the slurrying barrel, by shape in the slurrying barrel
At semi solid slurry squeeze out；
The feeding system, the pulping device and the extrusion system be configured to simultaneously with each slurrying material
Cylinder is corresponding, to be successively fed to each slurrying barrel, the movement of slurrying and extrusion.
By at least two uniformly mixed solid particles of feeding system storage and the solid particle is provided to pulping system,
Pulping system can extend into slurrying barrel, so that the solid particle in slurrying barrel forms semi solid slurry, be by squeezing out
System squeezes out the semi solid slurry formed in slurrying barrel, and the apparatus structure is simple, reduces costs, and can make molded part tissue
Uniformly, tissue defects and internal stress are reduced, the mechanical property of molded part is improved, significantly improves the quality of molded part；
The setting of slurrying barrel is multiple, and feeding system, pulping device and extrusion system can be corresponding with each slurrying barrel simultaneously,
To be successively fed to each slurrying barrel, slurrying and extrusion movement, save the working time, improve work efficiency, be applicable in
In on a large scale at production.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the pulping system further include rotation
Revolving worktable, the feeding system, the pulping device and the extrusion system are arranged on the rotary table, and around
The rounded arrangement of the center of rotation of the rotary table；
Multiple slurrying barrels are arranged at below the rotary table, and multiple slurrying barrels are along the circle
Arrangement, the rotary table rotation drive the feeding system, the pulping device and extrusion system rotation.Rotate work
The setting for making platform is able to drive feeding system, pulping device and extrusion system rotation, and different works is realized on different stations
Sequence realizes feed, slurrying, squeezes out the circulation progress of three processes, and then realizes continuous production.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the pulping device include first
Driving device and slurrying piston rod, the first driving device drive the slurrying piston rod rotation and can be along the slurrying barrels
Axial movement.Drive slurrying piston rod that the solid particle in slurrying barrel can be made to form semisolid by first driving device
Slurry controls more convenient.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the bottom end of the slurrying piston rod
It is provided with cutting member.The setting of cutting member can provide shearing force and extruding force in slurrying piston rod pulping process, make
The ingredient of semi solid slurry is more uniform.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the cutting member include multiple
Pin, multiple pins are circumferentially arranged along the end face of the bottom end of the slurrying piston rod and/or side.The setting can enhance
Shearing and the effect squeezed.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the pulping device further include
One pressure-detecting device, the first displacement detector and torque detecting apparatus, the first pressure detection device are configured as examining
The pressure of the slurrying piston rod is surveyed, first displacement detector is configured as detecting the displacement of the slurrying piston rod,
The torque detecting apparatus is configured as detecting the torque of the slurrying piston rod.It can be to system by first pressure detection device
The pressure of slurry piston rod is detected, and the displacement of slurrying piston rod is detected by the first displacement detector, is detected by torque
Device detects the torque of slurrying piston rod, in order to detect semi solid slurry in slurrying barrel under the action of slurrying piston rod
Viscosity state.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the extrusion system include second
Driving device, the multiple extruder heads for squeezing out piston rod and being arranged on each slurrying barrel, second driving device are driven
The extrusion piston rod is moved along the axial movement of the slurrying barrel, the semi solid slurry is squeezed out by the extruder head.
It is driven by the second driving device and squeezes out piston rod movement, the semi solid slurry of formation can squeezed out, pass through extruder head
The semi solid slurry of extrusion can be subjected to shaping.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, the extrusion system further include
Two pressure-detecting devices and second displacement detection device, the second pressure detection device are configured as detecting the extrusion piston
The pressure of bar, the second displacement detection device are configured as detecting the displacement for squeezing out piston rod.
A kind of preferred embodiment of direct-writing device as above-mentioned hybrid solid particle remelting, further includes temperature measurement system,
The temperature measurement system includes multiple temperature-detecting devices, and multiple temperature-detecting devices are configured as detecting each system
The temperature of slurry cylinder and each extruder head.Multiple temperature-detecting devices can examine the temperature of slurrying barrel and extruder head
It surveys, in order to control the preparation and extrusion of semi solid slurry.
The present invention also provides a kind of forming methods of hybrid solid particle remelting, using above-mentioned hybrid solid particle remelting
Direct-writing device, comprising steps of
S1, at least two uniformly mixed solid particles are added in feeding system；
S2, the solid particle in the feeding system is transported in the slurrying barrel；
The Pulping conditions of S3, the heating condition by controlling the heating device and the pulping device are so that the system
Solid particle in slurry cylinder forms semi solid slurry, by controlling the extrusion condition of the extrusion system with by the semisolid
Slurry squeezes out.
At least two uniformly mixed solid particles are added to feed system by the forming method of the hybrid solid particle remelting
In system, the solid particle in feeding system is transported in slurrying barrel；By the heating condition and system that control heating device
The Pulping conditions of sizing device are so that the solid particle in slurrying barrel forms semi solid slurry, by the extrusion for controlling extrusion system
Condition is control effectively with squeezing out semi solid slurry convenient for the flow behavior to semi solid slurry, and semi solid slurry is heavy
Shrinkage is small in long-pending and process of setting, and formed precision is high, the molded part even tissue of formation, reduces tissue defects and internal stress,
The mechanical property for improving molded part, significantly improves the quality of molded part.
Beneficial effects of the present invention:
The direct-writing device of hybrid solid particle remelting proposed by the present invention is uniformly mixed at least by feeding system storage
Two kinds of solid particles simultaneously provide the solid particle to pulping system, and pulping system can extend into slurrying barrel, so that the system
Solid particle in slurry cylinder forms semi solid slurry, is squeezed the semi solid slurry formed in slurrying barrel by extrusion system
Out, the apparatus structure is simple, reduces costs, and can make molded part even tissue, reduces tissue defects and internal stress, improve at
The mechanical property of type part significantly improves the quality of molded part；
The setting of slurrying barrel is multiple, and feeding system, pulping device and extrusion system can be corresponding with each slurrying barrel simultaneously,
To be successively fed to each slurrying barrel, slurrying and extrusion movement, save the working time, improve work efficiency, be applicable in
In on a large scale at production.
At least two uniformly mixed solid particles are added to by the forming method of solid particle remelting proposed by the present invention
In feeding system, the solid particle in feeding system is transported in slurrying barrel；By the heating condition for controlling heating device
And the Pulping conditions of pulping device are so that the solid particle in slurrying barrel forms semi solid slurry, by controlling extrusion system
Extrusion condition semi solid slurry to be squeezed out, control effectively convenient for the flow behavior to semi solid slurry, semi solid slurry
Material shrinkage in deposition and process of setting is small, and formed precision is high, the molded part even tissue of formation, reduces tissue defects and interior
Stress improves the mechanical property of molded part, significantly improves the quality of molded part.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the direct-writing device of hybrid solid particle remelting provided by the invention；
Fig. 2 is the structural schematic diagram of feeding system provided by the invention, pulping system and three-dimensional mobile system；
Fig. 3 is the structural schematic diagram of feeding system provided by the invention, pulping system and extrusion system；
Fig. 4 is the figure to be installed of feeding system in Fig. 3 of the present invention, pulping system and extrusion system；
Fig. 5 is the structural schematic diagram that slurrying piston rod provided by the invention shows cutting member；
Fig. 6 is the feeding system of the direct-writing device of hybrid solid particle remelting provided by the invention, slurrying piston rod, squeezes out
Piston rod respectively corresponds the structural schematic diagram of third slurrying barrel, the first slurrying barrel and the second slurrying barrel；
Fig. 7 is the feeding system of the direct-writing device of hybrid solid particle remelting provided by the invention, slurrying piston rod, squeezes out
Piston rod respectively corresponds the structural schematic diagram of the second slurrying barrel, third slurrying barrel, the first slurrying barrel.
In figure:
1, feeding system；
2, pulping system；21, pulping device；23, rotary table；212, slurrying piston rod；221, the first slurrying barrel；
222, the second slurrying barrel；223, third slurrying barrel；2121, cutting member；
3, extrusion system；32, piston rod is squeezed out；33, extruder head；
4, three-dimensional mobile system；
5, atmosphere protection device；51, closed case；52, feeder；53, purification system；511, First Transition storehouse；
512, the second transitional storehouse；
6, control system；
7, heating device.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The present invention provides a kind of direct-writing device of hybrid solid particle remelting, as Figure 1-Figure 4, hybrid solid particle weight
Molten direct-writing device includes feeding system 1, pulping system 2 and extrusion system 3, and feeding system 1 is configured as storage and is uniformly mixed
At least two solid particles；Pulping system 2 includes that pulping device 21 and multiple slurrying barrels, pulping device 21 can extend into system
In slurry cylinder, so that the solid particle in slurrying barrel forms semi solid slurry；Extrusion system 3 can extend into slurrying barrel,
It is squeezed out with the semi solid slurry that will be formed in slurrying barrel；Feeding system 1, pulping system 2 and extrusion system 3 are configured to
Simultaneously it is corresponding with each slurrying barrel, to be successively fed to each slurrying barrel, slurrying and extrusion act.
By the way that at least two solid particles with different melting points and uniformly mixed are mixed according to specified volume fraction
It closes, solid particle can be the solid particle of metallic particles or other materials, and in present embodiment, solid particle is preferably metal
Hybrid solid particles fuse is quickly formed the solid-liquid two-phase of suspension high-melting-point solid metallic particle using different melting points by particle
Metal bath, i.e. semi solid slurry, with the special organizational composition of semi solid slurry and fluid properties, semi solid slurry has a large amount of
Forming core core, molded part even tissue reduces tissue defects and internal stress, improves the mechanical property of molded part, significantly improve
The quality of molded part, while semi solid slurry shrinkage in deposition and process of setting is small, formed precision is high.The setting of slurrying barrel
It is multiple, feeding system 1, pulping device 21 and extrusion system 3 can simultaneously it is corresponding with each slurrying barrel, with to each slurrying barrel according to
It is secondary be fed, slurrying and extrusion movement, save the working time, improve work efficiency, be suitable on a large scale at production.
Preferably, the direct-writing device of the hybrid solid particle remelting further includes three-dimensional mobile system 4, three-dimensional mobile system 4
The lower section of extrusion system 3 is set, so that the semi solid slurry that extrusion system 3 squeezes out is molded over the platform of three-dimensional mobile system 4
On, the preparation of complicated molded part is convenient in the setting of three-dimensional mobile system 4.Preferably, heating is provided on three-dimensional mobile system 4
Component and temperature measurement component can be heated by platform of the heating component to three-dimensional mobile system 4, to improve the layer of molded part
Between associativity to improve the quality of molded part be capable of the temperature of the platform of real-time monitoring three-dimensional mobile system 4 by temperature measuring equipment
Degree, in order to be controlled.Specific three-dimensional mobile system 4, the structure of heating component and heating method belong to the prior art,
Details are not described herein.
As shown in Figure 1, feeding system 1 includes that feed hopper is fed under hopper by being fed hopper store solids particle
Portion is funnel structure, is exported under the effect of gravity convenient for solid particle.
In order to make the hybrid solid particle in slurrying barrel form semi solid slurry, it is provided on the outside of each slurrying barrel
Heating device 7 can heat the solid particle in slurrying barrel by heating device 7, be melted into semi solid slurry.It is excellent
Selection of land, heating device 7 can be dropped by electromagnetic induction heating or resistance heating without using high energy beam current as heat source significantly
Low cost.
As shown in figure 3, pulping system 2 further includes rotary table 23, feeding system 1, pulping device 21 and extrusion system 3
It is arranged on rotary table 23, feeding system 1, pulping device 21 and extrusion system 3 are in the rotation of rotary table 23
The rounded arrangement of the heart；Multiple slurrying barrels are arranged at the lower section of rotary table 23, multiple slurrying barrels along above-mentioned circular arrangement,
The rotation of rotary table 23 drives feeding system 1, pulping device 21 and extrusion system 3 to rotate, and realizes not on different stations
Same process realizes feed, slurrying, squeezes out the circulation progress of three processes, and then realizes continuous production.Preferably, it supplies
Material system 1, pulping device 21 and extrusion system 3 are connected by flange with rotary table 23.In present embodiment, driving dress
The rotation that rotary table 23 is realized by V belt translation is set, in other embodiments, however it is not limited to V belt translation, as long as can be realized
The rotation of rotary table 23.
As shown in figure 4, pulping device 21 includes first driving device and slurrying piston rod 212, first driving device driving
Slurrying piston rod 212 rotates and can be along the axial movement of slurrying barrel.212 energy of slurrying piston rod is driven by first driving device
So that the solid particle in slurrying barrel is formed semi solid slurry, controls more convenient.Preferably, first driving device is electronic
Cylinder, electric cylinder are connected by worm and gear speed-reduction apparatus with slurrying piston rod 212, and driving slurrying piston rod 212 rotates, and along system
The axial movement of slurry cylinder.
It further, can be living in slurrying as shown in figure 5, the bottom of slurrying piston rod 212 is provided with cutting member 2121
Shearing force and extruding force are provided in 212 pulping process of stopper rod, keep the ingredient of semi solid slurry more uniform.Preferably, cut part
Part 2121 includes multiple pins, and multiple pins are circumferentially arranged along the end face of the bottom end of slurrying piston rod 212 and/or side, can
Effect enhancing shearing and squeezed carries out rotational shear to the solid particle in slurrying barrel, squeezes, and makes to be formed in slurrying barrel
Semi solid slurry is more uniform.In present embodiment, the bottom end face of slurrying piston rod 212 is provided with multi-turn pin, multi-turn
The center of circle of pin is overlapped, and every circle includes multiple pins, can provide more uniform shearing force to the preparation of semi solid slurry
And extruding force.
Pulping device 21 further includes first pressure detection device, the first displacement detector and torque detecting apparatus, and first
Pressure-detecting device is configured as the pressure of detection slurrying piston rod 212, and the first displacement detector is configured as detection slurrying
The displacement of piston rod 212, torque detecting apparatus are configured as the torque of detection slurrying piston rod 212.It is detected by first pressure
Device can detect the pressure of slurrying piston rod 212, detect slurrying piston rod 212 by the first displacement detector
Displacement is detected the torque of slurrying piston rod 212 by torque detecting apparatus, existed in order to detect semi solid slurry in slurrying barrel
Viscosity state under the action of slurrying piston rod 212.Preferably, in present embodiment, first pressure detection device is pressure biography
Sensor, the first displacement detector are displacement sensor, and torque detecting apparatus is torque sensor, passes through pressure sensor, position
Viscosity state of the semi solid slurry in pulping process in displacement sensor and the numerical representation method slurrying barrel of torque sensor feedback,
To complete slurry preparation by the time of control shearing and squeezing action.In present embodiment, first pressure detection device,
One displacement detector and torque detecting apparatus are integrated in first driving device, in other embodiments, first pressure inspection
It surveys device, the first displacement detector and torque detecting apparatus and is not limited to above-mentioned setting position, as long as can be realized slurrying
Pressure, displacement and the detection of torque of piston rod 212.
As shown in Figures 2 and 3, extrusion system 3 includes the second driving device, squeezes out piston rod 32 and be arranged in each slurrying
Multiple extruder heads 33 on barrel, the driving of the second driving device squeeze out piston rod 32 along the axial movement of slurrying barrel, by half
Solid size is squeezed out by extruder head 33.It is driven by the second driving device and squeezes out the movement of piston rod 32, it can be solid by the half of formation
State slurry is squeezed out, and the semi solid slurry of extrusion can be carried out shaping by extruder head 33.Preferably, by slurrying material
Extruder head 33 of different shapes is installed on cylinder, to squeeze out semi solid slurry of different shapes.It further include the second pressure on extrusion system 3
Force checking device and second displacement detection device, second pressure detection device are configured as the pressure that detection squeezes out piston rod 32,
Second displacement detection device is configured as the displacement that detection squeezes out piston rod 32, it is preferable that second pressure detection device and second
Displacement detector is respectively pressure sensor and displacement sensor, in present embodiment, second pressure detection device and second
Displacement detector is arranged in the second driving device, is acquired and is carried out anti-for the data in semi solid slurry extrusion process
Feedback control, in order to squeeze out semi solid slurry.
Preferably, the direct-writing device of hybrid solid particle remelting further includes temperature measurement system, and temperature measurement system includes
Multiple temperature-detecting devices, multiple temperature-detecting devices are configured as detecting the temperature of each slurrying barrel and each extruder head 33, with
Convenient for controlling the preparation and extrusion of semi solid slurry.Preferably, each temperature-detecting device is non-contact temperature detection device, energy
The temperature of enough real-time detection each slurrying barrel and each extruder head 33.
Preferably, the direct-writing device of hybrid solid particle remelting further includes atmosphere protection device 5, and atmosphere protection device 5 wraps
Closed case 51, feeder 52 and purification system 53 are included, feeding system 1, pulping system 2 and three-dimensional mobile system 4 are respectively provided with
In closed case 51；Feeder 52 is connected with closed case 51, and provides protective gas for closed case 51；Purification system
System 53 is connected with closed case 51, for the gas in closed case 51 to be carried out circulating purification.5 energy of atmosphere protection device
It is enough that forming process is sealed, protective gas is provided into seal case by feeder 52, and forming process is protected
Shield, the setting of purification system 53, which is realized, carries out circulating purification to the gas in closed case 51, improves clean in closed case 51
Cleanliness, and then guarantee the Forming Quality of molded part.
Further, the outside of closed case 51 is provided with the First Transition storehouse 511 for adding solid particle and is used for
Take out the second transitional storehouse 512 of the molded part being molded on the platform of three-dimensional mobile system 4.It can by First Transition storehouse 511
It, can be easy to operate convenient for taking out molded part by the second transitional storehouse 512 convenient for adding solid particle into feeding system 1.
The direct-writing device of hybrid solid particle remelting further includes control system 6, and feeding system 1, squeezes out system at pulping system 2
System 3, three-dimensional mobile system 4, heating device 7, temperature measurement system and atmosphere protection device 5 are electrically connected with control system 6, are led to
Cross the movement that control system 6 controls each system and device.
The apparatus structure is simple, reduces costs, and can make molded part even tissue, reduces tissue defects and internal stress,
The mechanical property for improving molded part, significantly improves the quality of molded part.In present embodiment, there are three systems for the setting of pulping system 2
Slurry cylinder, respectively the first slurrying barrel 221, the second slurrying barrel 222 and third slurrying barrel 223.
The present invention also provides a kind of forming methods of hybrid solid particle remelting, using above-mentioned hybrid solid particle remelting
Direct-writing device prepared, comprising steps of
S1, at least two uniformly mixed solid particles are added in feeding system 1；
S2, the solid particle in feeding system 1 is transported in slurrying barrel；
The Pulping conditions of S3, the heating condition by controlling heating device 7 and pulping device 21 are so that in slurrying barrel
Solid particle formed semi solid slurry, by control extrusion system 3 extrusion condition semi solid slurry to be squeezed out.
At least two uniformly mixed solid particles are added to feed system by the forming method of the hybrid solid particle remelting
In system 1, the solid particle in feeding system 1 is transported in slurrying barrel；By control heating device 7 heating condition and
The Pulping conditions of pulping device 21 are so that the solid particle in slurrying barrel forms semi solid slurry, by controlling extrusion system 3
Extrusion condition semi solid slurry to be squeezed out, then by three-dimensional mobile system 4 moved along setting path, by semi solid slurry
Material is molded on the platform of three-dimensional mobile system 4, can make molded part even tissue, reduces tissue defects and internal stress, is improved
The mechanical property of molded part significantly improves the quality of molded part, meanwhile, semi solid slurry shrinkage in deposition and process of setting
Small, formed precision is high.
Specifically, the heating condition of heating device 7 includes heating temperature and heating time.The Pulping conditions of pulping device 21
Pressure parameter including the detection of first pressure detection device, the displacement parameter and torque detection dress of the detection of the first displacement detector
Set the torque parameter of detection.The extrusion condition of extrusion system 3 includes the pressure parameter of first pressure detection device detection, second
Move the displacement parameter of detection device detection.
Specifically, it is controlled by control system 6 and opens feedway 52 and purification system 53, to the gas in closed case 51
Body carries out circulating purification processing, and the water oxygen content inside closed case 51 is made to maintain 1ppm or less.
Then at least two uniformly mixed solids are provided for the slurrying barrel of pulping system 2 by First Transition storehouse 511
Particle, by control system 6 control rotary table 23 rotate (rotation direction is as shown by the arrows in Figure 4), make feeding system 1,
Slurrying piston rod 212, extrusion piston rod 32 respectively correspond the first slurrying barrel 221, the second slurrying barrel 222, third slurrying material
223 (referring to fig. 4) of cylinder, first driving device control slurrying piston rod 212 protrude into the second slurrying barrel 222, the second driving dress
It sets control extrusion piston rod 32 to protrude into third slurrying barrel 223, heating device 7 is opened in control, preheats the first slurrying material respectively
The 221, second slurrying barrel 222 of cylinder, third slurrying barrel 223 and the slurrying piston rod 212 of inside squeeze out piston rod 32 and squeeze
Lift one's head 33.
The solenoid valve of pulping system 2 is opened in control, and uniformly mixed solid particle is made to enter the first slurrying barrel 221；Control
System close pulping system 2 solenoid valve and open 221 outside heating device 7 of the first slurrying barrel to the first slurrying barrel 221 into
Row is rapidly heated；Slurrying piston rod 212 is controlled simultaneously and squeezes out piston rod 32 and retracts and rotates rotary table 23, makes to be fed
System 1, slurrying piston rod 212, extrusion piston rod 32 respectively correspond third slurrying barrel 223, the first slurrying barrel 221 and second
Slurrying barrel 222 (referring to Fig. 6)；The solenoid valve of feeding system 1 is opened in control, and uniformly mixed solid particle is made to enter third system
Slurry cylinder 223, while first driving device and the second driving device are controlled, make slurrying piston rod 212 in the first slurrying barrel 221
The interior movement for carrying out axial and circumferential carries out rotational shear to the solid particle in the first slurrying barrel 221, squeezes and melt, together
When keep the ingredient of semi solid slurry in the first slurrying barrel 221 more uniform, make the second driving device control extrusion piston rod
Continue to preheat in 32 the second slurrying barrels 222 of entrance；Control closes the solenoid valve of feeding system 1 and opens third slurrying barrel
The heating device 7 in 223 outsides is rapidly heated to third slurrying barrel 223；Slurrying piston rod 212 is controlled simultaneously and is squeezed out lives
Stopper rod 32 is retracted and rotates rotary table 23, and feeding system 1, slurrying piston rod 212, extrusion piston rod 32 are respectively corresponded
Second slurrying barrel 222, third slurrying barrel 223, the first slurrying barrel 221 (referring to Fig. 7)；So far, the first slurrying barrel 221
Interior semi solid slurry is ready；The solenoid valve of feeding system 1 is opened in control, and uniformly mixed solid particle is made to enter second
Slurrying barrel 222, while first driving device and the second driving device are controlled, make slurrying piston rod 212 in third slurrying barrel
The movement that axial and circumferential are carried out in 223 carries out rotational shear to the solid particle in third slurrying barrel 223, squeezes and melt,
Keep the ingredient of semi solid slurry in third slurrying barrel 223 more uniform simultaneously, the extrusion of control the second driving device control is living
Stopper rod 32 cooperates three-dimensional mobile system 4, the first slurrying barrel 221, solenoid valve and extruder head 33 to carry out three-dimensional extrusion molding；It is beating
During print, control closes the solenoid valve of feeding system 1 and opens the heating device 7 in 222 outside of the second slurrying barrel to second
Slurrying barrel 222 is rapidly heated；The slurrying piston rod 212 of first driving device control simultaneously is retracted, and keeps the temperature third slurrying
Semi solid slurry in barrel 223；So far, the semi solid slurry in third slurrying barrel 223 is ready；When the first slurrying material
Cylinder 221 in semi solid slurry use after, control squeeze out piston rod 32 retract, make feeding system 1, slurrying piston rod 212,
It squeezes out piston rod 32 and respectively corresponds the first slurrying barrel 221, the second slurrying barrel 222, third slurrying barrel 223 (referring to fig. 4)；
The control of second driving device squeezes out piston rod 32 and cooperates three-dimensional mobile system 4, third slurrying barrel 223, solenoid valve and extruder head
33 carry out three-dimensional extrusion molding；In print procedure, solid particle is refilled with to the first slurrying barrel 221, while controlling the
One driving device makes slurrying piston rod 212 carry out the movements of axial and circumferential in the second slurrying barrel 222, to the second slurrying material
Solid particle in cylinder 222 carries out rotational shear, squeezes fusing, at the same make semi solid slurry in the second slurrying barrel 222 at
Point more uniform, so far, the semi solid slurry in the second slurrying barrel 222 is ready；As half in third slurrying barrel 223
After solid size use, control squeezes out piston rod 32 and retracts, and makes feeding system 1, slurrying piston rod 212, squeezes out piston rod
32 respectively correspond third slurrying barrel 223, the first slurrying barrel 221, the second slurrying barrel 222 (referring to Fig. 6)；Control second is driven
The extrusion piston rod 32 of dynamic device cooperates three-dimensional mobile system 4, the second slurrying barrel 222, solenoid valve and extruder head 33 to carry out three
Tie up extrusion molding；According to above-mentioned workflow, it can be achieved that the high-efficient automatic of multistation metal direct-writing device prints.
During the circulation preparation of above-mentioned semi-solid metal slurry is with extrusion molding, pass through the pressure in first driving device
Semi solid slurry is in slurrying piston rod in the numerical representation method slurrying barrel of sensor, displacement sensor and torque sensor feedback
212 and the lower viscosity state of effect, it is prepared so as to complete slurry by the time of control shearing and squeezing action；Pass through extrusion
The pressure sensor and displacement sensor of electric cylinder, the data for slurry extrusion process acquire and control system 6 are cooperated to carry out
The feedback control of extrusion process；Monitor the first slurrying barrel 221, the second slurrying barrel 222, respectively by temperature measurement system
The real time temperature of three 223, three extruder heads 33 of slurrying barrel, and supplied according to the heat of monitoring result feedback regulation heating device 7
It gives；The numerical value dynamic control inert gas feedway cooperation purification fed back by the water oxygen detector in atmosphere protection system 5
System 53, the gas in circular treatment closed case 51, makes water, oxygen content in closed case 51 maintain 1ppm or less；Pass through
Heating component and temperature measurement component heat the platform of three-dimensional mobile system 4 and carry out real-time temperature detection.
After completing part forming processing, control stops pulping system 2 and extrusion system 3, passes through 51 left side of closed case
The second transitional storehouse 512, take out molded part.
In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second ", are only used to distinguish between description, have no special meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment
Or example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.?
In this specification, schematic expression of the above terms be may not refer to the same embodiment or example.
In addition, the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of direct-writing device of hybrid solid particle remelting characterized by comprising
Feeding system (1), the feeding system (1) are configured as at least two solid particles of storage；
Pulping system (2), the pulping system (2) include pulping device (21) and multiple slurrying barrels, each slurrying barrel
It is provided with heating device (7), the pulping device (21) can extend into the slurrying barrel, so that in the slurrying barrel
The solid particle formed semi solid slurry；
Extrusion system (3), the extrusion system (3) can extend into the slurrying barrel, will be formed in the slurrying barrel
The semi solid slurry squeeze out；
The feeding system (1), the pulping device (21) and the extrusion system (3) be configured to simultaneously with it is each described
Slurrying barrel is corresponding, to be successively fed to each slurrying barrel, the movement of slurrying and extrusion.
2. the direct-writing device of hybrid solid particle remelting according to claim 1, which is characterized in that the pulping system
It (2) further include rotary table (23), the feeding system (1), the pulping device (21) and the extrusion system (3) are all provided with
It sets on the rotary table (23), and around the rounded arrangement of center of rotation of the rotary table (23)；
Multiple slurrying barrels are arranged at below the rotary table (23), and multiple slurrying barrels are along the circle
Arrangement, rotary table (23) rotation drive the feeding system (1), the pulping device (21) and the extrusion system
(3) it rotates.
3. the direct-writing device of hybrid solid particle remelting according to claim 1, which is characterized in that the pulping device
It (21) include first driving device and slurrying piston rod (212), the first driving device drives the slurrying piston rod (212)
Rotation simultaneously can be along the axial movement of the slurrying barrel.
4. the direct-writing device of hybrid solid particle remelting according to claim 3, which is characterized in that the slurrying piston rod
(212) bottom end is provided with cutting member (2121).
5. the direct-writing device of hybrid solid particle remelting according to claim 4, which is characterized in that the cutting member
It (2121) include multiple pins, multiple pins are circumferential along the end face of the bottom end of the slurrying piston rod (212) and/or side
Setting.
6. the direct-writing device of hybrid solid particle remelting according to claim 3, which is characterized in that the pulping device
It (21) further include first pressure detection device, the first displacement detector and torque detecting apparatus, the first pressure detection dress
The pressure for being configured as detecting the slurrying piston rod (212) is set, first displacement detector is configured as described in detection
The displacement of slurrying piston rod (212), the torque detecting apparatus are configured as detecting the torque of the slurrying piston rod (212).
7. the direct-writing device of hybrid solid particle remelting according to claim 1, which is characterized in that the extrusion system
(3) include the second driving device, squeeze out piston rod (32) and multiple extruder heads (33) for being arranged on each slurrying barrel,
Second driving device driving squeeze out piston rod (32) are along the axial movement of the slurrying barrel, by the semisolid
Slurry is squeezed out by the extruder head (33).
8. the direct-writing device of hybrid solid particle remelting according to claim 7, which is characterized in that the extrusion system
It (3) further include second pressure detection device and second displacement detection device, the second pressure detection device is configured as detecting
The pressure for squeezing out piston rod (32), the second displacement detection device are configured as detecting extrusion piston rod (32)
Displacement.
9. the direct-writing device of hybrid solid particle remelting according to claim 7, which is characterized in that further include temperature measurement
System, the temperature measurement system include multiple temperature-detecting devices, and multiple temperature-detecting devices are configured as detection institute
State the temperature of slurrying barrel and each extruder head (33).
10. a kind of forming method of hybrid solid particle remelting, which is characterized in that using any described in claim 1-9
The direct-writing device of hybrid solid particle remelting, comprising steps of
S1, at least two uniformly mixed solid particles are added in feeding system (1)；
S2, the solid particle in the feeding system (1) is transported in the slurrying barrel；
The Pulping conditions of S3, the heating condition by controlling the heating device (7) and the pulping device (21) are so that institute
It states solid particle in slurrying barrel and forms semi solid slurry, by controlling the extrusion condition of the extrusion system (3) with by institute
State semi solid slurry extrusion.
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| CN201910453783.1A CN110026557B (en) | 2019-05-28 | 2019-05-28 | Direct-writing device for remelting mixed solid particles and forming method |
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|---|---|---|---|
| CN201910453783.1A CN110026557B (en) | 2019-05-28 | 2019-05-28 | Direct-writing device for remelting mixed solid particles and forming method |
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