CN107283059B - A kind of molten laser-impact that accumulates of electric arc forges increasing material manufacturing method and apparatus - Google Patents
A kind of molten laser-impact that accumulates of electric arc forges increasing material manufacturing method and apparatus Download PDFInfo
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- CN107283059B CN107283059B CN201710353741.1A CN201710353741A CN107283059B CN 107283059 B CN107283059 B CN 107283059B CN 201710353741 A CN201710353741 A CN 201710353741A CN 107283059 B CN107283059 B CN 107283059B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
- B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
- B23K26/356—Working by laser beam, e.g. welding, cutting or boring for surface treatment by shock processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
- B23K9/0956—Monitoring or automatic control of welding parameters using sensing means, e.g. optical
Abstract
The invention discloses a kind of molten product laser-impacts of electric arc to forge increasing material manufacturing method, comprising the following steps: 1) the mobile and molten product metal by control arc-welding apparatus forms layer；2) it is acquired by the temperature that electric arc of the temperature sensor to layer melts product metallic region, controller is sent by collected data, controller control laser generator synchronizes impact to the molten product metallic region of the electric arc in easy plastic deformation temperature and forges；3) step 2) is repeated with 3), and layer successively stacks and forms workpiece.It additionally provides a kind of molten laser-impact that accumulates of electric arc and forges increasing material manufacturing device.Present invention tool refines metal grain and optimization microscopic structure during part manufacturing, such as stomata that avoids conventional arc increasing material manufacturing forming metal parts from being likely to occur does not merge and shrinkage porosite internal flaw, while also improving the comprehensive mechanical mechanical property of metal parts.
Description
Technical field
The present invention relates to a kind of increasing material manufacturing method and apparatus, refer in particular to a kind of molten laser-impact that accumulates of electric arc and forge increasing material
Manufacturing method and apparatus.
Background technique
It is different from traditional " removal type " manufacture, " increasing material manufacturing " does not need proembryo and mold, is based on computer graphic figurate number
According to the method by increasing material generates the object of any shape.Compared with classical production process, can high efficiency, low cost at
Shape high-performance complicated difficult processes part, therefore has extensively in the high-end manufacturing field such as aerospace, automobile, mold, biologic medical
Wealthy application prospect.According to the difference for carrying beam, metal increasing material manufacturing can be divided into laser, electron beam and electric arc three classes.Electric arc increases
Material manufacturing technology is suitable for inexpensive, the efficient Quick-forming of large scale and the more complex component of shape, be with develop at present it is more mature
Laser, electron beam increasing material manufacturing method have complementary advantages increasing material forming technique.
Electric arc increasing material manufacturing process is in such a way that high temperature fluent metal molten drop is overlapped to the smooth transition of drip molding surface
It successively accumulates layer and forms Three-dimensional Entity Components, with the increase of the built-up welding number of plies, formed superficial layer is by moving heat source
Reciprocal heat effect, drip molding heat accumulation increase, and radiating condition is deteriorated, and part section different parts heat transfer efficiency is different, core material
Material is cooling slow, and skin-material is cooling very fast, moves the quick solidification shrinkage in molten bath, circulating-heating and non-homogeneous under these conditions
Complicated thermal stress, the neutralization deformation of stress collection are generated during non-equilibrium solid-state phase transformation under cooling, in part, seriously affect more than zero
What size and mechanical property, leads to the serious buckling deformation of part and cracking.In addition, technological parameter, external environment and molten bath state
Variation all may generate various special metallurgical imperfections in inside parts regional area, for example, stomata, incomplete fusion, crackle and
Shrinkage porosite etc..These internal flaws are the fatal tired germinating sources of load-carrying construction part, influence final formation of parts internal soundness,
The military service of mechanical property and component uses safe.Therefore, how when passing through metal increasing material manufacturing metal parts, gas is avoided as far as possible
Hole does not merge and problem the defects of shrinkage porosite, while improving the mechanical mechanics property of formation of parts, be those skilled in the art urgently
It solves the problems, such as.
A kind of ultrasonic impact of 103305828 A of Chinese patent CN strengthens the devices and methods therefor of laser cladding layer, adopts first
Carrying out deposition after the completion of one of laser cladding layers preparation to metal powder with beam of laser recycles ultrasound applicator molten to laser
Coating carries out ultrasonic impact, so alternately, completes part preparation.Metal material has good moulding in recrystallization temperature,
The essence of this method is that one of overlay solidifies completely, is cooled under recrystallization temperature and just starts to carry out ultrasonic impact reinforcing,
The elimination of the cold crack generated in overlay at this time does not almost work, and the temperature of same overlay different location is complete
Difference is difficult to realize elevating mechanism performance and eliminates the Homogenization Treatments of residual stress when using ultrasonic implement treatment.
Summary of the invention
It is an object of the present invention in view of the above-mentioned problems, providing a kind of molten laser-impact that accumulates of electric arc forges increasing material manufacturing
Method, this method can optimize metal parts material microstructure, avoid stomata, do not merge and the generation of the internal flaws such as shrinkage porosite,
The mechanical mechanics property of metal parts is improved simultaneously.
The second object of the present invention is that providing a kind of molten laser-impact that accumulates of electric arc forges increasing material manufacturing device.The device energy
Realize that carrying out the molten product laser-impact of electric arc to part forges, and efficiently, high quality and reliablely and stablely complete " forging constraint " at
Shape.
Following technical scheme can be used to reach in an object of the present invention:
A kind of molten laser-impact that accumulates of electric arc forges increasing material manufacturing method, comprising the following steps:
1) the mobile and molten product metal by control arc-welding apparatus, forms layer；
2) it is acquired by the temperature that electric arc of the temperature sensor to layer melts product metallic region, by collected data
It is sent to controller, it is same to the molten product metallic region progress of the electric arc in easy plastic deformation temperature that controller controls laser generator
Step impact forges；
3) step 2) is repeated with 3), and layer successively stacks and forms workpiece；
Wherein, the particular content of step 2 are as follows: counted by temperature of the infrared thermal imager to the molten product metallic region of electric arc
According to acquiring and be sent to controller；When the temperature of the molten product metallic region of electric arc is cooled to recrystallization temperature, laser generator
Pulse laser carries out impact to layer and forges；When the temperature of the molten product metallic region of electric arc is excessively high/too low, then controller output controls
Signal is to arc-welding apparatus, reduction/raising arc-welding apparatus input power, forms closed-loop control；
Controller determines the pulse width of pulse laser according to the thickness of layer, and determines that laser is forged according to layer width
Frequency and hot spot value are beaten, controller controls laser generator to the molten product metal area of the electric arc of the layer in easy plastic deformation temperature
Domain synchronizes impact and forges；Then controller carries out data acquisition to laser by beam quality detection device, and controls
Device output control signal to the pulse width of laser, forge frequency and hot spot value carries out feedback regulation；
The wire feed rate of controller control arc-welding apparatus and control the thickness and width of layer, the thickness and width of layer
Degree forges ability no more than laser generator；And when wire feed rate is more than/not up to electric arc molten product metal treating capacity when,
Then improve/reduce the molten product metal of electric arc and form the speed of layer, at the same improve/reduce the pulse width of laser, forge frequency and
The value of hot spot.
Following technical scheme can be used to reach in the second object of the present invention:
A kind of molten product laser-impact of electric arc forges increasing material manufacturing device, including controller, workbench and is set on workbench
Temperature sensor, arc-welding apparatus and the laser generator of side, the welding ends and laser generator of the arc-welding apparatus
It is right against workbench setting, mobile and molten product metal, forms layer by control arc-welding apparatus；The controller passes through temperature
The temperature that degree sensor melts product metallic region to the electric arc of layer detects, the output end of the controller and the arc welding
Connection device and laser generator electrical connection.
Controller is detected and controlled by wire feed rate of the welding system to arc-welding apparatus.
Controller carries out data acquisition to laser by beam quality detection device, and controller is output a control signal to
Laser generator and the value for controlling the pulse width of laser, forging frequency and hot spot.
The temperature sensor is infrared sensor.
The controller is single-chip microcontroller or PLC.
The invention has the following beneficial effects:
At work, arc-welding apparatus carries out the molten product metal of electric arc on the table and forms layer, same time control the present invention
Device processed is detected by temperature of the temperature sensor to the molten product metallic region of electric arc, then controller output control signal control
The output power of arc-welding apparatus makes the temperature of the molten product metallic region of electric arc be in easy plastic deformation temperature section.And it controls
Device control laser generator processed synchronizes impact to the layer of the molten product metallic region of electric arc and forges, thin during part manufacturing
Change metal grain and optimization microscopic structure, avoid that conventional arc increasing material manufacturing forming metal parts are likely to occur such as stomata, not
The internal flaws such as fusion and shrinkage porosite, while also improving the comprehensive mechanical mechanical property of metal parts.And in the molten product gold of electric arc
While belonging to silk material formation layer, by accurately controlling the shock wave of pulse laser generator to easy plastic deformation temperature area layer
It synchronizes impact to forge, realizes the purpose for completing " forging constraint " forming efficiently, in high quality in the same process.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram that the molten product laser-impact of electric arc of the present invention forges increasing material manufacturing method.
Fig. 2 is the structural schematic diagram that the molten product laser-impact of electric arc of the present invention forges increasing material manufacturing device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Referring to Figures 1 and 2, the present embodiment is related to part and the deposition forming laser-impact of mold forges manufacturing method, packet
Include following steps:
1) the mobile and molten product metal by control arc-welding apparatus 1, forms layer 2；
2) it is acquired by the temperature that electric arc of the temperature sensor 3 to layer 2 melts product metallic region, by collected number
According to controller 4 is sent to, controller 4 controls laser generator 5 to the molten product metallic region of the electric arc in easy plastic deformation temperature
Impact is synchronized to forge；
3) step 2) is repeated with 3), and layer 2 successively stacks and forms workpiece.
The temperature of the molten product metallic region of the electric arc is collected Data Concurrent by infrared thermal imager (temperature sensor 3)
It is sent to controller 4；When the temperature of the molten product metallic region of electric arc is cooled to recrystallization temperature, the pulse laser of laser generator 5
Impact is carried out to layer 2 to forge；When the temperature of the molten product metallic region of electric arc is excessively high/too low, then controller 4 is output a control signal to
Arc-welding apparatus 1, reduction/raising arc-welding apparatus 1 input power, until the temperature of the molten product metallic region of electric arc is in
Easy plastic deformation temperature forms closed-loop control.
Controller 4 determines the pulse width of pulse laser according to the thickness of layer 2, and is determined and swashed according to 2 width of layer
Light forges frequency and hot spot value, and it is molten to the electric arc of the layer 2 in easy plastic deformation temperature that controller 4 controls laser generator 5
The impact that synchronizes of product metallic region forges；Then controller 4 adopts laser progress data by beam quality detection device
Collection, and the output of controller 4 control signal to the pulse width of laser, forge frequency and hot spot value carries out feedback regulation.
The molten product metal of electric arc forms layer 2, while the shock wave pair of accurate control pulse laser generator 5 in step 1)
Layer 2 in easy plastic deformation temperature area synchronizes impact and forges；Layer 2 successively stacks and forms workpiece.
In step 2), the temperature of the molten product metallic region of electric arc is monitored on-line and is controlled by infrared thermal imager acquisition
System, when the molten product metallic region of electric arc, which is in, is most suitable for plastic deformation deformation temperature section, pulse laser utilizes knock wave mechanics
Effect synchronizes impact to 2 surface of layer and forges；If temperature is excessively high/too low to lead to the molten product silicon carbide offset easily modeling of metal
Property deformation temperature area when, then reduce/improve thermal weld stress because thermal weld stress be equal to welding current, arc voltage, thermal effect
The ratio of the sum of products speed of welding of rate reduces/improves arc voltage and welding current, raising/reduction speed of welding, shape
At closed-loop control；
For laser generator 5 laser parameter by beam quality detecting instrument or device on-line monitoring and control, according to
2 thickness of layer determines the pulse width of pulse laser, forges current 2 deep material of layer acquisition sufficiently thorough；And according to weldering
2 width of layer determine that pulse laser forges frequency and spot size, it is ensured that laser-impact forges movement speed and the molten product metal of electric arc
It forms 2 speed of layer to match, and guarantees that forging area's temperature is in always in easy plastic deformation temperature section；Such as weld thickness/wide
Degree exceeds the pulse laser processing limit, then reduces the speed that the molten product metal of electric arc forms layer 2, form closed-loop control.
Controller 4 controls the wire feed rate of arc-welding apparatus 1 and controls the thickness and width of layer 2, the thickness of layer 2
Ability is forged no more than laser generator 5 with width；And when wire feed rate is more than the/not up to molten product metal processing of electric arc
It when amount, then improves/reduces the molten product metal of electric arc and form the speed of layer 2, while improving/reducing the pulse width of laser, forging
The value of frequency and hot spot.
By welding system on-line monitoring and control, wire feed rate influences the molten product metal of electric arc and forms layer 2 wire feed rate
Thickness and width, while influencing layer 2 and form speed and laser-impact to forge parameter；As wire feed rate be more than/not up to electric arc
Molten product metal treating capacity then improves/reduces the molten product metal of electric arc and form the speed of layer 2, while improving/reducing pulse laser punching
It hits and forges pulse width, forge frequency and spot size, form closed-loop control.
Refinement metal grain and optimization microscopic structure in the fabrication process, avoid conventional arc increasing material manufacturing forming metal zero
Such as stomata that part is likely to occur does not merge and shrinkage porosite internal flaw, while also improving the comprehensive mechanical mechanics of metal parts
Performance.And while the molten product metal wire material of electric arc forms layer 2, by the impact for accurately controlling pulse laser generator 5
Wave synchronizes impact to the layer 2 in easy plastic deformation temperature and forges, and realizes in the same process efficiently, in high quality
Complete the purpose of " forging constraint " forming.
Following technical scheme can be used to reach in the second object of the present invention:
A kind of molten product laser-impact of electric arc forges increasing material manufacturing device, including controller 4, workbench and is set on workbench
Temperature sensor 3, arc-welding apparatus 1 and the laser generator 5 of side, welding ends and the laser hair of the arc-welding apparatus 1
Raw device 5 is right against workbench setting, and by control arc-welding apparatus 1, mobile and molten product metal, forms layer 2；The control
Device 4 is detected by the temperature that electric arc of the temperature sensor 3 to layer 2 melts product metallic region, the output end of the controller 4
It is electrically connected with the arc-welding apparatus 1 and laser generator 5.The controller 4 is single-chip microcontroller or PLC.
At work, arc-welding apparatus 1 carries out the molten product metal of electric arc on the table and forms layer 2, while controller 4
It is detected by temperature of the temperature sensor 3 to the molten product metallic region of electric arc, the then output of controller 4 control signal control
The output power of arc-welding apparatus 1 makes the temperature of the molten product metallic region of electric arc be in easy plastic deformation temperature section.And it controls
The layer 2 that device 4 processed controls the long-pending metallic region molten to electric arc of laser generator 5 synchronizes impact and forges, in part manufacturing process
Middle refinement metal grain and optimization microscopic structure, avoid that conventional arc increasing material manufacturing forming metal parts are likely to occur such as gas
It does not merge and the internal flaws such as shrinkage porosite, while also improving the comprehensive mechanical mechanical property of metal parts in hole.And it is molten in electric arc
While product metal wire material forms layer 2, by accurately controlling the shock wave of pulse laser generator 5 in easy plastic deformation
The layer 2 of temperature synchronizes impact and forges, and realizes and completes " forging constraint " forming efficiently, in high quality in the same process
Purpose.
Controller 4 is detected and controlled by wire feed rate of the welding system to arc-welding apparatus 1.Wire feed rate by
Welding system on-line monitoring and control, wire feed rate influence the thickness and width that the molten product metal of electric arc forms layer 2, influence simultaneously
Layer 2 forms speed and laser-impact forges parameter；As wire feed rate is more than/the not up to molten product metal treating capacity of electric arc, then mention
The molten product metal of height/reduction electric arc forms the speed of layer 2, while improving/reducing pulse laser impact and forge pulse width, forge
Frequency and spot size form closed-loop control.
Controller 4 carries out data acquisition, and the output control signal of controller 4 to laser by beam quality detection device
The value for controlling the pulse width of laser to laser generator 5, forging frequency and hot spot.For the laser ginseng of laser generator 5
Number determines the pulse width of pulse laser according to 2 thickness of layer by beam quality detecting instrument or device on-line monitoring and control,
Forge current 2 deep material of layer acquisition sufficiently thorough；And determine that pulse laser forges frequency and hot spot according to 2 width of layer
Size, it is ensured that laser-impact forges movement speed and matches with molten product metal formation 2 speed of layer of electric arc, and guarantees to forge Qu Wen
Degree is always in the temperature range in the best plastic deformation of metal；Thickness/width is such as welded beyond the pulse laser processing limit, then is dropped
The molten product metal of low electric arc forms the speed of layer 2, forms closed-loop control.
The temperature sensor 3 is infrared sensor.Certainly, other the temperature of the molten product metallic region of electric arc to be carried out
The sensor of detection is also applied for this structure.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (1)
1. a kind of molten product laser-impact of electric arc forges increasing material manufacturing method, it is characterised in that:
1) the mobile and molten product metal by control arc-welding apparatus, forms layer；
2) it is acquired by the temperature that electric arc of the temperature sensor to layer melts product metallic region, collected data is sent
To controller, controller controls laser generator and synchronizes punching to the molten product metallic region of the electric arc in easy plastic deformation temperature
It hits and forges；
3) step 2) is repeated with 3), and layer successively stacks and forms workpiece；
Wherein, the particular content of step 2 are as follows: data are carried out by temperature of the infrared thermal imager to the molten product metallic region of electric arc
It acquires and is sent to controller；When the temperature of the molten product metallic region of electric arc is cooled to recrystallization temperature, the arteries and veins of laser generator
Impulse light carries out impact to layer and forges；When the temperature of the molten product metallic region of electric arc is excessively high/too low, then controller output control is believed
Number arrive arc-welding apparatus, reduction/raising arc-welding apparatus input power, formed closed-loop control；
Controller determines the pulse width of pulse laser according to the thickness of layer, and determines that laser forges frequency according to layer width
Rate and hot spot value, controller control laser generator product metallic region molten to the electric arc of the layer in easy plastic deformation temperature into
The synchronous impact of row forges；Then controller carries out data acquisition to laser by beam quality detection device, and controller is defeated
Out control signal to the pulse width of laser, forge frequency and hot spot value carries out feedback regulation；
The wire feed rate of controller control arc-welding apparatus and control the thickness and width of layer, the thickness and width of layer is not
Can exceed that laser generator forges ability；And when wire feed rate is more than/not up to electric arc molten product metal treating capacity when, then mention
The molten product metal of height/reduction electric arc forms the speed of layer, while improving/reducing the pulse width of laser, forging frequency and hot spot
Value.
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| EP3626381A1 (en) * | 2018-09-20 | 2020-03-25 | FRONIUS INTERNATIONAL GmbH | Method for the production of metallic structures |
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| CN109986206A (en) * | 2019-04-11 | 2019-07-09 | 上海联擎动力技术有限公司 | Increasing material manufacturing device and its working method |
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| CN113770657B (en) * | 2021-09-22 | 2022-07-05 | 广东工业大学 | Online prediction method and device for abrasion loss of laser forging composite arc welding seam |
| CN113798636B (en) * | 2021-10-11 | 2022-11-22 | 广东工业大学 | Multilayer laser forging hybrid electric arc welding method and device for accurately controlling right-angle welding seam area |
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| CN101392382A (en) * | 2008-10-15 | 2009-03-25 | 江苏大学 | Method and device for strengthening surface modification by combination of laser cladding and laser peening |
| CN103862050A (en) * | 2014-03-31 | 2014-06-18 | 中国科学院西安光学精密机械研究所 | Metal 3D printer based on interlayer shock processing process and printing method thereof |
| CN103962560A (en) * | 2014-05-20 | 2014-08-06 | 上海交通大学 | Metal additive manufacturing device with combination of fusing and forging |
| CN104525944A (en) * | 2014-12-23 | 2015-04-22 | 北京理工大学 | High-energy beam-ultrasonic composite additive manufacturing method for metal materials |
| CN105458264A (en) * | 2015-12-18 | 2016-04-06 | 华中科技大学 | Added material manufacturing method under vibration condition |
| CN106244791A (en) * | 2016-07-28 | 2016-12-21 | 东南大学 | A kind of surface reinforcing method reducing the laser gain material part porosity |
| CN106425288A (en) * | 2016-07-28 | 2017-02-22 | 北京工业大学 | Temperature cycle based additive, subtractive and equal integrated fusion manufacturing method |
| CN205927519U (en) * | 2016-08-13 | 2017-02-08 | 中北大学 | Laser of eliminating laser melting shaped article residual stress strikes device |
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