CN106475564A - Metal drop prints 3D surface quality of workpieces control device and method - Google Patents
Metal drop prints 3D surface quality of workpieces control device and method Download PDFInfo
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Abstract
The invention discloses a kind of metal drop prints 3D surface quality of workpieces control device and its control method, including：Computer system, metal drop injector head, laser instrument, scanning galvanometer, galvanometer motor, motion platform, deposition substrate, motor, cover plain-barreled roll, roller motor, CCD camera, its feature also includes laser power adjustor, covers the sub- height arm control of plain-barreled roll, substrate temperature control apparatus and stream edge doctor etc..The present invention adopts laser instrument as energy source, the accelerated surface cladding to shaping aspect for the laser beam is realized by scanning galvanometer, and control roller to cover flat depth and pressure by covering the sub- height arm control of plain-barreled roll, in the state of coating metal molten drop or liquation do not solidify completely, by the speed controlling motion platform and cover plain-barreled roll, the metal surface of quick cladding is oriented and scrapes, bring it about and secondary sprawl and fill, and then original scraggly shaping aspect is rolled out, complete the control of aspect surface quality, and pass through ccd image detecting system, realize rolling out real-time detection and the feedback of effect.
Description
Technical field
The present invention relates to metal 3D printing increases material manufacturing technology field, print 3D surface quality of workpieces control device and its control method particularly to a kind of metal drop.
Background technology
Metal drop jet printing deposition formation technology is to have merged Layered Manufacturing Technology and molten drop need based jet technology, the method being a kind of direct manufacture metal parts shaping thought with " part model dispersed material is successively piled up ".This forming technique is without certain moduli tool and expensive device, can direct forming complex three-dimensional metal structure, have the advantages that low cost, forming efficiency are high, material source scope is wide, flexibility, energy consumption low and pollution-free, in fields such as minute vehicle, Micro Electro Mechanical System, miniature weapon system equipments, there is preferable application prospect.But, the process that metal drop prints deposition formation part is a molten drop material pointwise, successively dynamically piles up, deposited adjacent overlap joint molten drop is at combination interface, the heat that after dependence, deposition molten drop carries makes the surface previously having deposited molten drop that local remelting to occur, realize combination to each other, and then shape whole 3 d part.Due in manufacture process, with the collision of molten drop, sprawl, solidify, the complex process such as local remelting and non-isochronism phase transformation, so that the piece surface shaping presents " the fish scale pattern ", rough and uneven in surface of regularity, surface roughness is larger, is difficult to meet the use technical requirements of part.At present, the metal parts based on layering increases material manufacturing technology direct forming, to improve the surface accuracy of formation of parts frequently with following several method：（1）To ensure using piling up with the method for milling Compound Machining during Layered manufacturing, such as：" plasma deposition/milling is combined and directly manufactures high temperature alloy double helix integrated impeller, China Mechanical Engineering; 2007, Vol18, No.14 for Zhang Haiou, Bearss newly red; Wang Guilan for patent " method of ZL00131288.X, Directly rapid fabrication mould and part and its device " and document：P1723-1725 "; propose a kind of plasma deposition forming and be combined no mould method for fast mfg with Milling Process; i.e. with beam-plasma for shaping thermal source; during long-pending metal dust stack shaping is melted in layering or segmentation; intersect successively and carry out deposition forming and numerical control milling polish, to realize shaping the control of surface accuracy；（2）To be ensured using the method piled up and local Rolling compund is processed during Layered manufacturing, such as：Patent " ZL201010147632.2; the deposition forming composite manufacturing method of part and mould and its auxiliary device " proposes the deposition forming composite manufacturing method of a kind of part and mould, while carrying out deposition forming step, miniature roll or miniature pressurizing unit are with molten long-pending region synchronizing moving, compression molding and processing are made to molten long-pending region, successively synchronization carries out deposition forming and processing, until it reaches the requirement of accessory size and surface accuracy；（3）After the completion of part Layered manufacturing, using piece surface is carried out secondary cutting, fluid polishing process method, to improve the surface accuracy of part, to meet use requirement.But said method（1）Need to interrupt molten long-pending process after the completion of piling up at every layer, and the milling of last layer can be on the molten long-pending probability producing impact, increasing intralayer defects appearance of later layer；Method（2）Need to control two covering devices during Layered manufacturing simultaneously, plan two kinds of paths, manufacture process is more complicated, control difficulty to increase, and the method is mainly only applicable to the shaping of thin-wall revolving body part；Method（3）Following process process can only be carried out to simple piece surface, and aftertreatment technology is complicated, can cause the Stress Release of piece surface, cause part deformation after secondary operations.In a word, said method is primarily adapted for use in the technical process shaping with high-power energy source sintering metal powder, and the process printing deposition formation part for metal drop less adapts to.In view of the problem that patent disclosed above and document exist, a kind of present invention printing-forming surface quality of workpieces control process method and device of proposition.
Content of the invention
It is in regular " fish scale pattern ", rough and uneven in surface to solve existing metal drop deposition piece surface, surface roughness is larger, it is difficult to meet the problem that part uses the presence such as technical requirements, the present invention propose a kind of using laser accelerated surface cladding with cover plain-barreled roll orientation and scrape the method that Combined Processing realizes part forming granule surface contral, and provide the device realizing shaping granule surface contral using the method.
The technical solution used in the present invention is：A kind of metal drop prints 3D surface quality of workpieces control device, including：Computer system, metal drop injector head, laser instrument, scanning galvanometer, galvanometer motor, motion platform, deposition substrate, motor, cover plain-barreled roll, roller motor, CCD camera, laser power adjustor, cover the sub- height arm control of plain-barreled roll, substrate temperature control apparatus and stream edge doctor；Also include gas distribution controller, rotary heating furnace, coaxially for air cavity, pulse generator, temperature controller, power adjustable laser device, polarize motor, cover the sub- height arm control of plain-barreled roll, stream edge doctor, CCD camera, thermocouple, deposition platform, polarizer, cover plain-barreled roll, roller motor；Wherein, inert gas pressure storage bottle storage inside 99.999% high-purity argon gas, gas distribution controller is connected with inert gas pressure storage bottle, and inert gas pressure storage bottle supplies air cavity provide inert protective gas for crucible and coaxially；Crucible is connected with gas distribution controller with pneumatic control valve by respective appendix for air cavity with coaxially, for realizing the control of gas pressure and flow；Pulse generator is connected with electromagnetic valve, and the pulse signal by output, controls the unlatching/closing of electromagnetic valve, makes to produce pulse pressure inside crucible, realizes metal droplet injection；Coaxially it is installed on below crucible bottom for air cavity, and ensure that crucible bottom nozzle is in the coaxially center for air cavity；Rotary heating furnace is positioned over outside crucible, flat heater stove is positioned over the lower section of deposition platform, thermocouple is respectively placed in inside crucible and deposition platform, and the temperature signal collecting is sent to temperature controller by thermocouple, realizes the feedback control to crucible and deposition platform internal temperature；Deposition platform is connected with direction servomotor, and direction servomotor is moved according to aspect routing information, controls deposition platform and the injection of metal drop mutually to coordinate, realizes the shaping of deposition aspect；Power adjustable power laser diode is according to the certain laser beam of setting generation power and spot diameter, beam transmission is to above polarizer, laser beam can cover formation laser facula above flat aspect in non-roll-in after polarizer reflective, polarizer is connected with polarization motor, by the achievable control to polarizer position of motion polarizing motor, and then can achieve that laser facula carries out accelerated surface cladding according to scanning pattern to deposition aspect；Cover plain-barreled roll and be arranged on and cover on the sub- height arm control of plain-barreled roll, suitable roller can be set by roller height arm control and cover flat depth and pressure；Cover plain-barreled roll to be connected with roller motor by Timing Belt, cover the speed controlling of plain-barreled roll by controlling the rotating speed of roller motor can achieve；Stream edge doctor is arranged on scraper height adjustment device, can set suitable stream edge doctor height by scraper height adjustment device；CCD camera is connected with computer control system by image pick-up card, and the aspect collecting is rolled out image and is shown on display screen by computer control system, and is analyzed with the standard aspect image being stored, and realizes rolling out measurement and the feedback of effect.
A kind of metal drop prints the control method of 3D surface quality of workpieces it is characterised in that including below step：（1）According to the material behavior of metal drop, the size of deposition molten drop and deposition thickness, select laser power, spot size and scanning speed；（2）Computer, according to the individual-layer data information of part, passes through to control the injection frequency of metal drop and the speed of motion platform at a temperature of suitable deposition substrate, deposits single aspect according to scanning deposition path pointwise；（3）The single aspect depositing is moved to laser melting coating region, opens laser instrument and set laser power and spot size, and suitable roller is set by roller height arm control and cover flat depth and pressure；（4）According to plane data routing information, control galvanometer motor, roller motor and motion platform, under the beam scanning rate setting, quick cladding is carried out to the single aspect depositing；（5）After the completion of cladding, control cover plain-barreled roll and motion platform set roller rotating speed and movement velocity under to cladding after aspect be oriented roll-in, make coating metal liquation occur in the state of not solidifying completely secondary sprawl and fill, and then original scraggly shaping aspect is rolled out；（6）After roll-in terminates, according to bed boundaries data message, controlling stream edge doctor carries out scraping to bed boundaries, removes roll-in overlap；（7）Open ccd image acquisition system, aspect is rolled out with effect and carries out image acquisition, image pick-up card is by the information transfer collecting to computer control system, the layer images collecting are analyzed by computer control system with the standard aspect image being stored, and realize rolling out the detection feedback of effect；（8）As testing result shows that to roll out effect not all right, deviation data parameter feedback will be contrasted to computer control system, repeat（4）Arrive（7）Process meets requirement until rolling out effect, terminates the printing-forming process of current layer；（9）Computer reads in the data message of next aspect, starts the printing deposition of next layer, and repeats（2）Arrive（8）Process, until whole part prints finishing, takes out part.
A kind of metal drop printing-forming surface quality of workpieces control device, including：Computer system, metal drop injector head, laser instrument, scanning galvanometer, galvanometer motor, motion platform, deposition substrate, motor, cover plain-barreled roll, roller motor, CCD camera, its feature also includes laser power adjustor, covers the sub- height arm control of plain-barreled roll, substrate temperature control apparatus and stream edge doctor etc..The present invention adopts laser instrument as energy source, the accelerated surface cladding to shaping aspect for the laser beam is realized by scanning galvanometer, and control roller to cover flat depth and pressure by covering the sub- height arm control of plain-barreled roll, in the state of coating metal molten drop or liquation do not solidify completely, by the speed controlling motion platform and cover plain-barreled roll, the metal surface of quick cladding is oriented and scrapes, bring it about and secondary sprawl and fill, and then original scraggly shaping aspect is rolled out, complete the control of aspect surface quality, and pass through ccd image detecting system, realize rolling out real-time detection and the feedback of effect.
Compared with prior art, the invention has the beneficial effects as follows：
（1）The present invention carries out accelerated surface cladding using the aspect that laser goes out to deposition formation, flow behavior according to molten metal, under external force using cover plain-barreled roll orientation scrape cladding surface, coating metal molten drop or liquation is made to carry out secondary sprawling and filling in the state of not solidifying completely, and then original scraggly shaping aspect is rolled out, piece surface " fish scale pattern ", rough and uneven in surface can effectively be reduced, the phenomenon such as surface roughness is larger, reduces the probability that intralayer defects and step effect occur.（2）The present invention adopts ccd image detecting system, deposition aspect can be rolled out with effect and carry out real-time detection and feedback, be prevented effectively from the presence covering flat defect, improve production efficiency.（3）The present invention can be with existing metal drop three-dimensional printing-forming coordinative composition of equipments, do not change existing equipment manufacturing process principle during use, but by being controlled to every layer of profiled surface in layer by layer deposition forming process, improve the forming quality of whole part, the present invention is that the one kind to existing metal drop three-dimensional printing-forming equipment is improved.（4）Apparatus of the present invention are applied to and increase, based on metal, the 3D printing former that material layering printing-forming principle is used, and have certain versatility.
With reference to the accompanying drawings and detailed description the present invention is elaborated.
Brief description
Fig. 1 is metal drop printing-forming piece surface " fish scale pattern " phenomenon being provided without the present invention；
Fig. 2 is metal drop printing-forming surface quality of workpieces control device structure principle chart of the present invention；
Fig. 3 is quality control on the surface device partial enlarged drawing of the present invention；
Fig. 4 is to cover the sub- schematic top plan view of plain-barreled roll in the present invention.
In figure：1- inert gas pressure storage bottle、2- gas distribution controller、3- rotary heating furnace、4- molten metal、5- coaxially supplies air cavity、6- pulse generator、7- temperature controller、8- power adjustable laser device、9-X direction polarizes motor、10- computer control system、11- covers the sub- height arm control of plain-barreled roll、12- scraper height adjustment device、13- flows edge doctor、14- CCD camera、15- image pick-up card、16- metal drop、17-X direction servomotor、18- deposits aspect、19- Y-direction servomotor、20、31- thermocouple、21- deposition platform、22- polarizer、23- laser facula、24- Y-direction polarizes motor、25- covers plain-barreled roll、26- Timing Belt、The aspect after putting down is covered in 27- roll-in、28- roller motor、Flat aspect is covered in the non-roll-in of 29-、30- crucible、32- flat heater stove、33- electromagnetic valve.
Specific embodiment
With reference to Fig. 2,3 and 4, a kind of metal drop printing-forming surface quality of workpieces control device of the present invention, including gas distribution controller 2, rotary heating furnace 3, coaxially supply air cavity 5, pulse generator 6, temperature controller 7, power adjustable laser device 8, polarization motor 9,24, cover the sub- height arm control of plain-barreled roll 11, stream edge doctor 13, CCD camera 14, thermocouple 20,31, deposition platform 21, polarizer 22, cover plain-barreled roll 25, roller motor 28.Its feature is inert gas pressure storage bottle 1 storage inside 99.999% high-purity argon gas, and gas distribution controller 2 is coupled, for crucible 30 with coaxially for air cavity 5 offer inert protective gas；Crucible 30 is connected with gas distribution controller 2 with pneumatic control valve by respective appendix for air cavity 5 with coaxially, the control of achievable gas pressure and flow；Pulse generator 6 is connected with electromagnetic valve 33, and the pulse signal by output, controls the unlatching/closing of electromagnetic valve 33, makes the internal generation pulse pressure of crucible 30, realizes metal droplet 16 and spray；Coaxially it is installed on crucible 30 bottom part down for air cavity 5, and ensure that crucible bottom nozzle is in the coaxially center for air cavity 5；Rotary heating furnace 3 is positioned over outside crucible, flat heater stove 32 is positioned over the lower section of deposition platform 21, thermocouple 20,31 is respectively placed in inside crucible 30 and deposition platform 21, the temperature signal collecting is sent to temperature controller 7 by thermocouple 20,31, realizes the feedback control to crucible 30 and deposition platform 21 internal temperature；Deposition platform 21 is connected with direction servomotor 17,19, and direction servomotor 17,19 is moved according to aspect routing information, controls deposition platform 21 and the injection of metal drop 16 mutually to coordinate, realizes the shaping of deposition aspect 18；Power adjustable power laser diode 8 is according to the certain laser beam of setting generation power and spot diameter, beam transmission is to above polarizer 22, laser beam can cover formation laser facula 23 above flat aspect 29 in non-roll-in after polarizer 22 reflection, polarizer 22 is connected with polarization motor 9,24, by the achievable control to polarizer 22 position of motion polarizing motor 9,24, and then can achieve that laser facula 23 carries out accelerated surface cladding according to scanning pattern to deposition aspect 18；Cover plain-barreled roll 25 and be arranged on and cover on the sub- height arm control of plain-barreled roll 11, suitable roller can be set by roller height arm control and cover flat depth and pressure；Cover plain-barreled roll 25 to be connected with roller motor 28 by Timing Belt 26, can achieve, by controlling the rotating speed of roller motor 28, the speed controlling covering plain-barreled roll 25；Stream edge doctor 13 is arranged on scraper height adjustment device 12, can set suitable stream edge doctor height by scraper height adjustment device；CCD camera 14 is connected with computer control system 10 by image pick-up card 15, the aspect collecting is rolled out image and is shown on display screen by computer control system 10, and be analyzed with the standard aspect image being stored, realize rolling out measurement and the feedback of effect.
A kind of metal drop prints 3D surface quality of workpieces control device, including：Computer system, metal drop injector head, laser instrument, scanning galvanometer, galvanometer motor, motion platform, deposition substrate, motor, cover plain-barreled roll, roller motor, CCD camera, laser power adjustor, cover the sub- height arm control of plain-barreled roll, substrate temperature control apparatus and stream edge doctor；Also include gas distribution controller, rotary heating furnace, coaxially for air cavity, pulse generator, temperature controller, power adjustable laser device, polarize motor, cover the sub- height arm control of plain-barreled roll, stream edge doctor, CCD camera, thermocouple, deposition platform, polarizer, cover plain-barreled roll, roller motor；Wherein, inert gas pressure storage bottle storage inside 99.999% high-purity argon gas, gas distribution controller is connected with inert gas pressure storage bottle, and inert gas pressure storage bottle supplies air cavity provide inert protective gas for crucible and coaxially；Crucible is connected with gas distribution controller with pneumatic control valve by respective appendix for air cavity with coaxially, for realizing the control of gas pressure and flow；Pulse generator is connected with electromagnetic valve, and the pulse signal by output, controls the unlatching/closing of electromagnetic valve, makes to produce pulse pressure inside crucible, realizes metal droplet injection；Coaxially it is installed on below crucible bottom for air cavity, and ensure that crucible bottom nozzle is in the coaxially center for air cavity；Rotary heating furnace is positioned over outside crucible, flat heater stove is positioned over the lower section of deposition platform, thermocouple is respectively placed in inside crucible and deposition platform, and the temperature signal collecting is sent to temperature controller by thermocouple, realizes the feedback control to crucible and deposition platform internal temperature；Deposition platform is connected with direction servomotor, and direction servomotor is moved according to aspect routing information, controls deposition platform and the injection of metal drop mutually to coordinate, realizes the shaping of deposition aspect；Power adjustable power laser diode is according to the certain laser beam of setting generation power and spot diameter, beam transmission is to above polarizer, laser beam can cover formation laser facula above flat aspect in non-roll-in after polarizer reflective, polarizer is connected with polarization motor, by the achievable control to polarizer position of motion polarizing motor, and then can achieve that laser facula carries out accelerated surface cladding according to scanning pattern to deposition aspect；Cover plain-barreled roll and be arranged on and cover on the sub- height arm control of plain-barreled roll, suitable roller can be set by roller height arm control and cover flat depth and pressure；Cover plain-barreled roll to be connected with roller motor by Timing Belt, cover the speed controlling of plain-barreled roll by controlling the rotating speed of roller motor can achieve；Stream edge doctor is arranged on scraper height adjustment device, can set suitable stream edge doctor height by scraper height adjustment device；CCD camera is connected with computer control system by image pick-up card, and the aspect collecting is rolled out image and is shown on display screen by computer control system, and is analyzed with the standard aspect image being stored, and realizes rolling out measurement and the feedback of effect.
A kind of metal drop prints the control method of 3D surface quality of workpieces it is characterised in that including below step：（1）According to the material behavior of metal drop, the size of deposition molten drop and deposition thickness, select laser power, spot size and scanning speed；（2）Computer, according to the individual-layer data information of part, passes through to control the injection frequency of metal drop and the speed of motion platform at a temperature of suitable deposition substrate, deposits single aspect according to scanning deposition path pointwise；（3）The single aspect depositing is moved to laser melting coating region, opens laser instrument and set laser power and spot size, and suitable roller is set by roller height arm control and cover flat depth and pressure；（4）According to plane data routing information, control galvanometer motor, roller motor and motion platform, under the beam scanning rate setting, quick cladding is carried out to the single aspect depositing；（5）After the completion of cladding, control cover plain-barreled roll and motion platform set roller rotating speed and movement velocity under to cladding after aspect be oriented roll-in, make coating metal liquation occur in the state of not solidifying completely secondary sprawl and fill, and then original scraggly shaping aspect is rolled out；（6）After roll-in terminates, according to bed boundaries data message, controlling stream edge doctor carries out scraping to bed boundaries, removes roll-in overlap；（7）Open ccd image acquisition system, aspect is rolled out with effect and carries out image acquisition, image pick-up card is by the information transfer collecting to computer control system, the layer images collecting are analyzed by computer control system with the standard aspect image being stored, and realize rolling out the detection feedback of effect；（8）As testing result shows that to roll out effect not all right, deviation data parameter feedback will be contrasted to computer control system, repeat（4）Arrive（7）Process meets requirement until rolling out effect, terminates the printing-forming process of current layer；（9）Computer reads in the data message of next aspect, starts the printing deposition of next layer, and repeats（2）Arrive（8）Process, until whole part prints finishing, takes out part.
A kind of metal drop printing-forming surface quality of workpieces control device, including：Computer system, metal drop injector head, laser instrument, scanning galvanometer, galvanometer motor, motion platform, deposition substrate, motor, cover plain-barreled roll, roller motor, CCD camera, its feature also includes laser power adjustor, covers the sub- height arm control of plain-barreled roll, substrate temperature control apparatus and stream edge doctor etc..The present invention adopts laser instrument as energy source, the accelerated surface cladding to shaping aspect for the laser beam is realized by scanning galvanometer, and control roller to cover flat depth and pressure by covering the sub- height arm control of plain-barreled roll, in the state of coating metal molten drop or liquation do not solidify completely, by the speed controlling motion platform and cover plain-barreled roll, the metal surface of quick cladding is oriented and scrapes, bring it about and secondary sprawl and fill, and then original scraggly shaping aspect is rolled out, complete the control of aspect surface quality, and pass through ccd image detecting system, realize rolling out real-time detection and the feedback of effect.
Compared with prior art, the invention has the beneficial effects as follows：
（1）The present invention carries out accelerated surface cladding using the aspect that laser goes out to deposition formation, flow behavior according to molten metal, under external force using cover plain-barreled roll orientation scrape cladding surface, coating metal molten drop or liquation is made to carry out secondary sprawling and filling in the state of not solidifying completely, and then original scraggly shaping aspect is rolled out, piece surface " fish scale pattern ", rough and uneven in surface can effectively be reduced, the phenomenon such as surface roughness is larger, reduces the probability that intralayer defects and step effect occur.（2）The present invention adopts ccd image detecting system, deposition aspect can be rolled out with effect and carry out real-time detection and feedback, be prevented effectively from the presence covering flat defect, improve production efficiency.（3）The present invention can be with existing metal drop three-dimensional printing-forming coordinative composition of equipments, do not change existing equipment manufacturing process principle during use, but by being controlled to every layer of profiled surface in layer by layer deposition forming process, improve the forming quality of whole part, the present invention is that the one kind to existing metal drop three-dimensional printing-forming equipment is improved.（4）Apparatus of the present invention are applied to and increase, based on metal, the 3D printing former that material layering printing-forming principle is used, and have certain versatility.
Embodiment
1.
Tin alloy molten drop printing-forming component test
（1）According to the material behavior of tin alloy molten drop, the diameter dimension of selected deposition molten drop is：200 microns, deposition thickness is 150 microns, and the laser power of selection is 1.5KW, and spot size is 250 microns, and scanning speed is 5m/s；
（2）Computer according to part individual-layer data information, set suitable deposition substrate temperature as：150 DEG C, the injection frequency of metal drop is 5Hz, and motion platform speed is 1mm/s, deposits single aspect according to scanning deposition path pointwise；
（3）The single aspect depositing is moved to laser melting coating region, opens laser instrument and set laser power as 1.5KW and spot size as 250 microns, and suitable roller is set by roller height arm control and cover flat depth as 50 microns and pressure as 0.2MP；
（4）According to plane data routing information, control galvanometer motor, roller motor and motion platform, under the beam scanning rate 5m/s setting, quick cladding is carried out to the single aspect depositing；
（5）After the completion of cladding, control cover plain-barreled roll and motion platform set roller rotating speed 2r/s and movement velocity 5mm/s under to cladding after aspect be oriented roll-in, make coating metal liquation occur in the state of not solidifying completely secondary sprawl and fill, and then original scraggly shaping aspect is rolled out；
（6）After roll-in terminates, according to bed boundaries data message, set stream edge doctor height as 2.5mm, controlling stream edge doctor and motion platform carry out scraping to bed boundaries, remove roll-in overlap；
（7）Open ccd image acquisition system, aspect is rolled out with effect and carries out image acquisition, image pick-up card is by the information transfer collecting to computer control system, the layer images collecting are analyzed by computer control system with the standard aspect image being stored, and realize rolling out the detection feedback of effect；
（8）As testing result shows that to roll out effect not all right, deviation data parameter feedback will be contrasted to computer control system, repeat（4）Arrive（7）Process meets requirement until rolling out effect, terminates the printing-forming process of current layer（9）Computer reads in the data message of next aspect, starts the printing deposition of next layer, and repeats（2）Arrive（8）Process, until whole part prints finishing, takes out part.
Embodiment
2.
Aluminium alloy molten drop printing-forming component test
（1）According to the material behavior of aluminium alloy molten drop, the diameter dimension of selected deposition molten drop is：300 microns, deposition thickness is 250 microns, and the laser power of selection is 3KW, and spot size is 350 microns, and scanning speed is 5m/s；
（2）Computer according to part individual-layer data information, set suitable deposition substrate temperature as：550 DEG C, the injection frequency of metal drop is 10Hz, and motion platform speed is 3mm/s, deposits single aspect according to scanning deposition path pointwise；
（3）The single aspect depositing is moved to laser melting coating region, opens laser instrument and set laser power as 3KW and spot size as 350 microns, and suitable roller is set by roller height arm control and cover flat depth as 50 microns and pressure as 0.5MP；
（4）According to plane data routing information, control galvanometer motor, roller motor and motion platform, under the beam scanning rate 5m/s setting, quick cladding is carried out to the single aspect depositing；
（5）After the completion of cladding, control cover plain-barreled roll and motion platform set roller rotating speed 2r/s and movement velocity 5mm/s under to cladding after aspect be oriented roll-in, make coating metal liquation occur in the state of not solidifying completely secondary sprawl and fill, and then original scraggly shaping aspect is rolled out；
（6）After roll-in terminates, according to bed boundaries data message, set stream edge doctor height as 3mm, controlling stream edge doctor and motion platform carry out scraping to bed boundaries, remove roll-in overlap；
（7）Open ccd image acquisition system, aspect is rolled out with effect and carries out image acquisition, image pick-up card is by the information transfer collecting to computer control system, the layer images collecting are analyzed by computer control system with the standard aspect image being stored, and realize rolling out the detection feedback of effect；
（8）As testing result shows that to roll out effect not all right, deviation data parameter feedback will be contrasted to computer control system, repeat（4）Arrive（7）Process meets requirement until rolling out effect, terminates the printing-forming process of current layer（9）Computer reads in the data message of next aspect, starts the printing deposition of next layer, and repeats（2）Arrive（8）Process, until whole part prints finishing, takes out part.
Claims (2)
1. a kind of metal drop prints 3D surface quality of workpieces control device it is characterised in that including：Computer system, metal drop injector head, laser instrument, scanning galvanometer, galvanometer motor, motion platform, deposition substrate, motor, cover plain-barreled roll, roller motor, CCD camera, laser power adjustor, cover the sub- height arm control of plain-barreled roll, substrate temperature control apparatus and stream edge doctor；Also include gas distribution controller, rotary heating furnace, coaxially for air cavity, pulse generator, temperature controller, power adjustable laser device, polarize motor, cover the sub- height arm control of plain-barreled roll, stream edge doctor, CCD camera, thermocouple, deposition platform, polarizer, cover plain-barreled roll, roller motor；Wherein, inert gas pressure storage bottle storage inside 99.999% high-purity argon gas, gas distribution controller is connected with inert gas pressure storage bottle, and inert gas pressure storage bottle supplies air cavity provide inert protective gas for crucible and coaxially；Crucible is connected with gas distribution controller with pneumatic control valve by respective appendix for air cavity with coaxially, for realizing the control of gas pressure and flow；Pulse generator is connected with electromagnetic valve, and the pulse signal by output, controls the unlatching/closing of electromagnetic valve, makes to produce pulse pressure inside crucible, realizes metal droplet injection；Coaxially it is installed on below crucible bottom for air cavity, and ensure that crucible bottom nozzle is in the coaxially center for air cavity；Rotary heating furnace is positioned over outside crucible, flat heater stove is positioned over the lower section of deposition platform, thermocouple is respectively placed in inside crucible and deposition platform, and the temperature signal collecting is sent to temperature controller by thermocouple, realizes the feedback control to crucible and deposition platform internal temperature；Deposition platform is connected with direction servomotor, and direction servomotor is moved according to aspect routing information, controls deposition platform and the injection of metal drop mutually to coordinate, realizes the shaping of deposition aspect；Power adjustable power laser diode is according to the certain laser beam of setting generation power and spot diameter, beam transmission is to above polarizer, laser beam can cover formation laser facula above flat aspect in non-roll-in after polarizer reflective, polarizer is connected with polarization motor, by the achievable control to polarizer position of motion polarizing motor, and then can achieve that laser facula carries out accelerated surface cladding according to scanning pattern to deposition aspect；Cover plain-barreled roll and be arranged on and cover on the sub- height arm control of plain-barreled roll, suitable roller can be set by roller height arm control and cover flat depth and pressure；Cover plain-barreled roll to be connected with roller motor by Timing Belt, cover the speed controlling of plain-barreled roll by controlling the rotating speed of roller motor can achieve；Stream edge doctor is arranged on scraper height adjustment device, can set suitable stream edge doctor height by scraper height adjustment device；CCD camera is connected with computer control system by image pick-up card, and the aspect collecting is rolled out image and is shown on display screen by computer control system, and is analyzed with the standard aspect image being stored, and realizes rolling out measurement and the feedback of effect.
2. a kind of metal drop prints the control method of 3D surface quality of workpieces it is characterised in that including below step：
（1）According to the material behavior of metal drop, the size of deposition molten drop and deposition thickness, select laser power, spot size and scanning speed；（2）Computer, according to the individual-layer data information of part, passes through to control the injection frequency of metal drop and the speed of motion platform at a temperature of suitable deposition substrate, deposits single aspect according to scanning deposition path pointwise；（3）The single aspect depositing is moved to laser melting coating region, opens laser instrument and set laser power and spot size, and suitable roller is set by roller height arm control and cover flat depth and pressure；（4）According to plane data routing information, control galvanometer motor, roller motor and motion platform, under the beam scanning rate setting, quick cladding is carried out to the single aspect depositing；（5）After the completion of cladding, control cover plain-barreled roll and motion platform set roller rotating speed and movement velocity under to cladding after aspect be oriented roll-in, make coating metal liquation occur in the state of not solidifying completely secondary sprawl and fill, and then original scraggly shaping aspect is rolled out；（6）After roll-in terminates, according to bed boundaries data message, controlling stream edge doctor carries out scraping to bed boundaries, removes roll-in overlap；（7）Open ccd image acquisition system, aspect is rolled out with effect and carries out image acquisition, image pick-up card is by the information transfer collecting to computer control system, the layer images collecting are analyzed by computer control system with the standard aspect image being stored, and realize rolling out the detection feedback of effect；
（8）As testing result shows that to roll out effect not all right, deviation data parameter feedback will be contrasted to computer control system, repeat（4）Arrive（7）Process meets requirement until rolling out effect, terminates the printing-forming process of current layer；（9）Computer reads in the data message of next aspect, starts the printing deposition of next layer, and repeats（2）Arrive（8）Process, until whole part prints finishing, takes out part.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107805808A (en) * | 2017-11-20 | 2018-03-16 | 山东大学 | A kind of electric jet deposition micro- texture cutter preparation method of laser melting coating |
| CN110220375A (en) * | 2019-03-21 | 2019-09-10 | 佛山市南海区辉泰科技机械有限公司 | A kind of primary and secondary smelting furnace |
| CN111299579A (en) * | 2020-03-09 | 2020-06-19 | 深圳市晶莱新材料科技有限公司 | Method for improving internal quality of SLM metal printing product |
| CN111867842A (en) * | 2017-11-15 | 2020-10-30 | 格拉纳特研究有限公司 | Metal droplet injection system |
| US20220032550A1 (en) * | 2020-07-31 | 2022-02-03 | Xerox Corporation | Method and system for operating a metal drop ejecting three-dimensional (3d) object printer to form electrical circuits on substrates |
| CN116175730A (en) * | 2023-03-23 | 2023-05-30 | 中国科学院空间应用工程与技术中心 | Improved method and device for roller scraper in photo-cured ceramic 3D printing spreading |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0962270A1 (en) * | 1998-06-01 | 1999-12-08 | Ford Global Technologies, Inc. | A method for forming turbine hubs |
| CN104815985A (en) * | 2015-04-22 | 2015-08-05 | 华南理工大学 | Micro beam plasma 3D (three dimensional) printing device and method |
| CN104827664A (en) * | 2015-01-28 | 2015-08-12 | 江汉大学 | 3D printer |
| CN204584274U (en) * | 2015-04-22 | 2015-08-26 | 华南理工大学 | A kind of laser and microplasma compound 3D printing device |
| CN105081325A (en) * | 2015-08-28 | 2015-11-25 | 许昌学院 | Surface quality control device for three-dimensional (3D) part formed through metal drop printing and control method of surface quality control device |
-
2015
- 2015-08-31 CN CN201510544335.4A patent/CN106475564A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0962270A1 (en) * | 1998-06-01 | 1999-12-08 | Ford Global Technologies, Inc. | A method for forming turbine hubs |
| CN104827664A (en) * | 2015-01-28 | 2015-08-12 | 江汉大学 | 3D printer |
| CN104815985A (en) * | 2015-04-22 | 2015-08-05 | 华南理工大学 | Micro beam plasma 3D (three dimensional) printing device and method |
| CN204584274U (en) * | 2015-04-22 | 2015-08-26 | 华南理工大学 | A kind of laser and microplasma compound 3D printing device |
| CN105081325A (en) * | 2015-08-28 | 2015-11-25 | 许昌学院 | Surface quality control device for three-dimensional (3D) part formed through metal drop printing and control method of surface quality control device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111867842A (en) * | 2017-11-15 | 2020-10-30 | 格拉纳特研究有限公司 | Metal droplet injection system |
| CN111867842B (en) * | 2017-11-15 | 2021-05-25 | 格拉纳特研究有限公司 | Metal droplet injection system |
| CN107805808A (en) * | 2017-11-20 | 2018-03-16 | 山东大学 | A kind of electric jet deposition micro- texture cutter preparation method of laser melting coating |
| CN107805808B (en) * | 2017-11-20 | 2019-07-05 | 山东大学 | Preparation method of electric jet deposition-laser cladding micro-texture cutter |
| CN110220375A (en) * | 2019-03-21 | 2019-09-10 | 佛山市南海区辉泰科技机械有限公司 | A kind of primary and secondary smelting furnace |
| CN111299579A (en) * | 2020-03-09 | 2020-06-19 | 深圳市晶莱新材料科技有限公司 | Method for improving internal quality of SLM metal printing product |
| US20220032550A1 (en) * | 2020-07-31 | 2022-02-03 | Xerox Corporation | Method and system for operating a metal drop ejecting three-dimensional (3d) object printer to form electrical circuits on substrates |
| US11731366B2 (en) * | 2020-07-31 | 2023-08-22 | Xerox Corporation | Method and system for operating a metal drop ejecting three-dimensional (3D) object printer to form electrical circuits on substrates |
| US20230294364A1 (en) * | 2020-07-31 | 2023-09-21 | Xerox Corporation | Method for operating a metal drop ejecting three-dimensional (3d) object printer to form electrical circuits on substrates |
| CN116175730A (en) * | 2023-03-23 | 2023-05-30 | 中国科学院空间应用工程与技术中心 | Improved method and device for roller scraper in photo-cured ceramic 3D printing spreading |
| CN116175730B (en) * | 2023-03-23 | 2023-09-08 | 中国科学院空间应用工程与技术中心 | Improved method and device for roller scraper in photo-cured ceramic 3D printing spreading |
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Application publication date: 20170308 |