CN106808062A - Thick-walled structure part electric arc silk filling increasing material manufacturing root area penetration method - Google Patents
Thick-walled structure part electric arc silk filling increasing material manufacturing root area penetration method Download PDFInfo
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- CN106808062A CN106808062A CN201710022025.5A CN201710022025A CN106808062A CN 106808062 A CN106808062 A CN 106808062A CN 201710022025 A CN201710022025 A CN 201710022025A CN 106808062 A CN106808062 A CN 106808062A
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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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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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
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1012—Power supply characterised by parts of the process
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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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
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Abstract
The present invention provides a kind of thick-walled structure part electric arc silk filling increasing material manufacturing root area penetration method, thick-walled structure part is sandwich construction more than two-layer, road is piled up by least more than two for every layer to constitute, using electric arc silk filling increasing material manufacturing method shaping multilayer multiple tracks structure, the shaping of each synusia is mutually overlapped by least more than two accumulation roads and formed, the mode that first accumulation road of each synusia takes welding gun vertical with substrate shapes, remaining is piled up road and takes welding gun axis with substrate surface into 65 ° of 85 ° of shapings, welding gun axis points to root area, maximum arc force is set to directly act on root area；The inventive method can ensure the good penetration of root area, eliminate root area hole defect, realize that root area, Qian Dao reflow zones are connected with the good metallurgy of front layer reflow zone, the fusing to front layer reflow zone can be reduced simultaneously, the excessive remelting to front layer reflow zone is avoided, effective utilization of thick-walled structure part electric arc silk filling increasing material manufacturing process arc energy is further realized.
Description
Technical field
The invention belongs to electric arc silk filling increases material manufacturing technology field, and in particular to a kind of thick-walled structure part electric arc fills silk and increases material
Manufacture root area penetration method.
Background technology
Electric arc silk filling increasing material manufacturing is a kind of hardware increasing material manufacturing method of low cost, and the technology is applied to large scale
The shaping of hardware,, using electric arc as thermal source, metal wire material is packing material for it, is successively shaped simultaneously according to setting forming path
Manufacture hardware.Generally, it is excellent that the organized energy of the hardware of shaping is good, good mechanical performance, Coating combination performance are good etc.
Point.
Multilayer multiple tracks structure is shaped the need for the electric arc of thick-walled structure part fills silk in increasing material manufacturing, is inevitable.Into
During shape multilayer multiple tracks structure, need to shape at least two accumulation roads on each layer, by setting rational welding gun center spacing,
So as to the good overlap joint for ensureing adjacent accumulation road shapes.Metallurgical binding performance between to obtain good interlayer and road, at latter one
During stack shaping, electric arc needs, by preceding one partial remelting, Qian Dao reflow zones to be formed, while needing preceding layer accumulation horizon weight
It is molten, form front layer reflow zone.More it is essential that electric arc also needs to enter connection Qian Dao reflow zones with the root area of front layer reflow zone
Row remelting.
During shaping multilayer multiple tracks thick-walled structure part, electric arc heated scope is easy to act on Qian Dao reflow zones and front layer remelting
Qu Shang, but root area is located at immediately below Qian Dao reflow zones, therefore electric arc is difficult to be applied directly on root area, causes root area
Melting area is too small or is difficult to melt, and even hole, extreme influence interlayer metallurgical binding intensity are formed when serious.At present, heavy wall
Mostly by the way of welding gun is vertical with substrate, root area is difficult to obtain preferable penetration for the shaping of component, and front layer reflow zone
Again because the direct effect of electric arc causes excess molten to dilute.At present, pertinent literature is there is no to propose thick-walled structure part electricity both at home and abroad
The solution of the penetration of arc silk filling increasing material manufacturing root.Therefore, it is necessary to explore a kind of new thick-walled structure part electric arc fill silk
Increasing material manufacturing root area penetration method, so that solving root area is difficult to the too small problem of penetration or melting range.
The content of the invention
The invention aims to solve thick-walled structure part electric arc fill silk increasing material manufacturing root area melting area it is too small or
It is difficult to the problem of the interlayer metallurgical binding low intensity that penetration causes, there is provided a kind of thick-walled structure part electric arc silk filling increasing material manufacturing root
Area's penetration method.
For achieving the above object, technical solution of the present invention is as follows：
A kind of thick-walled structure part electric arc fills silk increasing material manufacturing root area penetration method, described thick-walled structure part for two-layer with
On sandwich construction, pile up roads by least more than two for every layer and constitute, it is many using the electric arc increasing material manufacturing method shaping multilayer that fills silk
Road structure, the shaping of each synusia is mutually overlapped by least more than two accumulation roads and formed, and the first accumulation road of each synusia is adopted
Take the welding gun mode vertical with substrate to shape, remaining is piled up road and takes welding gun axis with substrate surface into 65 ° of -85 ° of shapings, weldering
Gun axis line points to root area, maximum arc force is directly acted on root area.
It is preferred that, methods described is further comprising the steps：
Step one：Determine arcing point position and forming path, make welding gun axis perpendicular to base plan, complete ground floor the
Shaping together.
Step 2：Welding gun is along perpendicular to first forming path direction horizontal cross movement 2-7mm of ground floor.Adjustment welding gun
Attitude, makes welding gun axis point to ground floor first root area, and welding gun axis, into 65 ° -85 °, completes the with substrate surface angle
One layer of shaping of second.
Horizontal cross move 2-7mm because：Every layer of thick-walled structure part is formed by a series of accumulation roads overlap joint, in order to
Good shaping surface layer is obtained, the rational welding gun transversal displacement of setting is generally required.If welding gun transversal displacement is too small,
Then follow-up road profiled surface of piling up will be uprised；If welding gun transversal displacement is excessive, adjacent accumulation road center exists obvious
Pit.Therefore, welding gun transversal displacement is set as 2-7mm in the present invention.
Welding gun axis and substrate surface angle are to ensure that the arc force on welding gun axis acts on root into 65 ° -85 °
Qu Shang.If setting angle is too small, the electric arc basic role for producing is on Qian Dao reflow zones；If setting angle is excessive,
Electric arc basic role is on front layer reflow zone.
It is to derive to obtain in the following manner that all accumulation roads take welding gun to be shaped into 65 ° -85 ° with substrate：
(1) highly it is h as shown in figure 4, the width for setting accumulation road is w, it is f to pile up road surface topography curvilinear function
X (), the center spacing in adjacent accumulation road is d.
(2) road surface topography curvilinear function is piled up in setting
By
Try to achieve d=2w/3
BH=d-w/2=w/6
(3) it is penetration root area B points, need to ensures that welding gun points to the region.Welding gun is arrived in electric arc fills silk increasing material manufacturing
Accumulation horizon distance from bottom IH piles up road width w and changes in 4-10mm in 5-12mm range changings.
∠ IBH=arctan (IH/BH)
Can be calculated, welding gun is 65 ° -85 ° with the excursion of substrate angle
Step 3：Welding gun transverse shifting 2-7mm on ground floor second forming path, complete ground floor the 3rd road into
Shape.
Step 4：Continue repeat step three, complete the remaining shaping for piling up road of ground floor.
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes the shaping of the remaining number of plies.
It is preferred that, the blow-out point position in every accumulation road of preceding layer is the arcing point position in every accumulation road of later layer
Put.So set the reason for be：In electric arc fills silk increasing material manufacturing, the arcing point in every accumulation road is high, blow-out point is low.Therefore,
The starting the arc on the blow-out point position in every accumulation road of preceding layer, it is possible to use the spy that arcing point mutually makes up with blow-out spot size
Point, it is ensured that stability of the accumulation horizon in end formed size.
It is preferred that, accumulation road forming path is any SPL.
It is preferred that, methods described is further comprising the steps：
Step one：Determine arcing point position and forming path, make welding gun axis perpendicular to base plan, complete ground floor the
Shaping together.
Step 2：Welding gun adjusts welding gun appearance along perpendicular to first forming path direction horizontal cross movement 5mm of ground floor
State, makes welding gun axis point to ground floor first root area, and welding gun axis, into 75 °, completes ground floor the with substrate surface angle
The shaping in two roads.
Step 3：Welding gun transverse shifting 5mm on ground floor second forming path, complete ground floor the 3rd road into
Shape.
Step 4：Continue repeat step three, complete the remaining shaping for piling up road of ground floor.
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes the shaping of the remaining number of plies.
It is preferred that, increasing material manufacturing technological parameter is：Forming current 110-260A, arc voltage 12-26V, welding gun
Speed of travel 2-12mm/s.
Compared with prior art, the outstanding advantages being had using the inventive method are：
(1) the welding gun mode vertical with substrate is taken when the inventive method shapes the first accumulation road of each synusia, remaining
The mode that road takes welding gun to be formed an angle with substrate is piled up, axially maximum arc force points to root area by welding gun, realizes root
The good penetration in area, eliminates root area hole defect, further improves interlayer metallurgy bonding strength.
(2) the inventive method can reduce the fusing to front layer reflow zone simultaneously, it is to avoid to the excessive weight of front layer reflow zone
It is molten, realize effective utilization of increasing material manufacturing process arc energy.
Brief description of the drawings
Fig. 1 is thick-walled structure part electric arc silk filling increasing material manufacturing root area penetration method schematic diagram；
Fig. 2 is the thick-walled structure part ground floor metallographic sectional view shaped into vertical mode using welding gun and substrate；
Fig. 3 is welding gun axis and substrate surface into 75 ° of thick-walled structure part ground floor metallographic sectional views of shaping；
Fig. 4 is that welding gun axis derives schematic diagram with substrate surface shaping angle.
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages of the invention and effect easily.The present invention can also be by specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Comparative example
The thick-walled structure part of the present embodiment shaping is 20 layer of 5 road structure, that is, it is 20 layers to shape the number of plies, every layer of 5 road of upper shaping,
Forming path is straight line, and per pass shaping length is 150mm.Electric arc fill silk increasing material manufacturing test platform be：Electric arc increasing material manufacturing electricity
Source is consumable electrode gas-arc Fronius TPS4000 welding machines, and electrode gas shielded arc welding gun is arranged on ABB six-joint robots the
On six shaft ends, motion and the pose adjustment of welding gun are controlled by robot.Increasing material manufacturing technological parameter is：Forming current
150A, arc voltage 20V, welding gun speed of travel 5mm/s, shaping protection gas is 95%Ar+5%CO2, gas flow is 18L/
Min, filling silk material is H08Mn2Si mild steel weldinmg rods, and gage of wire is 1.2mm, and substrate is Q235 low carbon steel plates, substrate size
It is 200mm × 150mm × 10mm.
Step one：Arcing point position is selected first on substrate and forming path is set, is adjusted by ABB robots and welded
Rifle attitude, makes welding gun axis perpendicular to base plan, the shaping that first of completion ground floor.
Step 2：Welding gun is along perpendicular to first forming path direction horizontal cross displacement 5mm of ground floor, completing the
One layer of shaping of second.
Step 3：Welding gun is along perpendicular to ground floor second forming path direction horizontal cross displacement 5mm, completing the
One layer of the 3rd shaping in road.
Step 4：Continue repeat step three, complete the shaping in the road of ground floor the 4th and the 5th road.The metal of ground floor shaping
Section macroscopic view metallograph is as shown in Figure 2.
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes remaining 19 layers shaping.
Embodiment 1
The thick-walled structure part of the present embodiment shaping is 20 layer of 5 road structure, that is, it is 20 layers to shape the number of plies, every layer of 5 road of upper shaping,
Forming path is straight line, and per pass shaping length is 150mm.Electric arc fill silk increasing material manufacturing test platform be：Electric arc increasing material manufacturing electricity
Source is consumable electrode gas-arc Fronius TPS4000 welding machines, and electrode gas shielded arc welding gun is arranged on ABB six-joint robots the
On six shaft ends, motion and the pose adjustment of welding gun are controlled by robot.Increasing material manufacturing technological parameter is：Forming current
150A, arc voltage 20V, welding gun speed of travel 5mm/s, shaping protection gas is 95%Ar+5%CO2, gas flow is 18L/
Min, filling silk material is H08Mn2Si mild steel weldinmg rods, and gage of wire is 1.2mm, and substrate is Q235 low carbon steel plates, substrate size
It is 200mm × 150mm × 10mm.
With reference to Fig. 1 illustrate present embodiment, methods described through the following steps that realize：
Step one：Arcing point position is selected first on substrate and forming path is set, is adjusted by ABB robots and welded
Rifle attitude, makes welding gun axis perpendicular to base plan, the shaping that first of completion ground floor.
Step 2：Welding gun passes through along perpendicular to first forming path direction horizontal cross displacement 5mm of ground floor
ABB robots adjust posture of welding torch, welding gun axis is pointed to first root area of ground floor, welding gun axis and substrate surface angle
Into 75 °, the shaping of ground floor second is completed.
Step 3：Welding gun horizontal cross displacement 5mm on ground floor second forming path, completes ground floor the 3rd
The shaping in road.
Step 4：Continue repeat step three, complete the shaping in the road of ground floor the 4th and the 5th road.The metal of ground floor shaping
Section macroscopic view metallograph is as shown in Figure 3.
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes remaining 19 layers shaping.
By welding gun, axially maximum arc force points to root area to the present embodiment, realizes the good penetration of root area, eliminates root
Area's hole defect, further improves interlayer metallurgy bonding strength.The present embodiment reduces the fusing to front layer reflow zone simultaneously, it is to avoid
Excessive remelting to front layer reflow zone, realizes effective utilization of arc energy.
Embodiment 2
The thick-walled structure part of the present embodiment shaping is 30 layer of 3 road structure, that is, it is 30 layers to shape the number of plies, every layer of 3 road of upper shaping,
Forming path is straight line, and per pass shaping length is 160mm.Electric arc fill silk increasing material manufacturing test platform be：Electric arc increasing material manufacturing electricity
Source is the welding machines of MagicWave 3000, and tungsten argon arc welding gun is arranged on the shaft end of ABB six-joint robots the 6th, by robot
Control motion and the pose adjustment of welding gun.Increasing material manufacturing technological parameter is：Forming current 110A, arc voltage 19V, welding gun walking
Speed 3mm/s, wire feed rate 0.8m/min, shaping protection gas is 95%Ar+5%CO2, gas flow is 18L/min, fills silk
Material is H08Mn2Si mild steel weldinmg rods, and gage of wire is 1.2mm, and substrate is Q235 low carbon steel plates, substrate size be 200mm ×
150mm×5mm。
Methods described through the following steps that realize：
Step one：Arcing point position is selected first on substrate and forming path is set, is adjusted by ABB robots and welded
Rifle attitude, makes welding gun axis perpendicular to base plan, the shaping that first of completion ground floor.
Step 2：Welding gun passes through along perpendicular to first forming path direction horizontal cross displacement 2mm of ground floor
ABB robots adjust posture of welding torch, welding gun axis is pointed to first root area of ground floor, welding gun axis and substrate surface angle
Into 65 °, the shaping of ground floor second is completed.
Step 3：Welding gun horizontal cross displacement 2mm on ground floor second forming path, completes ground floor the 3rd
The shaping in road.
Step 4：Welding gun raises a floor height, continues repeat step one, two, three, completes remaining 29 layers shaping.It is previous
The blow-out point position in every accumulation road of layer is the arcing point position in every accumulation road of later layer.The present embodiment is axially maximum by welding gun
Arc force points to root area, realizes the good penetration of root area, eliminates root area hole defect, further improves interlayer metallurgical even
Connect intensity.The present embodiment reduces the fusing to front layer reflow zone simultaneously, it is to avoid the excessive remelting to front layer reflow zone, realizes electric arc
Effective utilization of energy.
Embodiment 3
The thick-walled structure part of the present embodiment shaping is 25 layer of 8 road structure, that is, it is 25 layers to shape the number of plies, every layer of 8 road of upper shaping,
Forming path is closed circle, and per pass shaping circumferential length is 200mm.Electric arc fill silk increasing material manufacturing test platform be：Electric arc increases
Material manufacture power supply is consumable electrode gas-arc Fronius TPS4000 welding machines, and electrode gas shielded arc welding gun is arranged on the axles of ABB six
On the shaft end of robot the 6th, motion and the pose adjustment of welding gun are controlled by robot.Increasing material manufacturing technological parameter is：Shaping
Electric current 260A, arc voltage 26V, welding gun speed of travel 12mm/s, shaping protection gas is 95%Ar+5%CO2, gas flow is
18L/min, filling silk material is H08Mn2Si mild steel weldinmg rods, and gage of wire is 1.2mm, and substrate is Q235 low carbon steel plates, substrate
Size is 200mm × 150mm × 10mm.
Methods described through the following steps that realize：
Step one：Arcing point position is selected first on substrate and forming path is set, is adjusted by ABB robots and welded
Rifle attitude, makes welding gun axis perpendicular to base plan, the shaping that first of completion ground floor.
Step 2：Welding gun passes through along perpendicular to first forming path direction horizontal cross displacement 7mm of ground floor
ABB robots adjust posture of welding torch, welding gun axis is pointed to first root area of ground floor, welding gun axis and substrate surface angle
Into 85 °, the shaping of ground floor second is completed.
Step 3：Welding gun horizontal cross displacement 7mm on ground floor second forming path, completes ground floor the 3rd
The shaping in road.
Step 4：Continue repeat step three, complete the shaping in the road of ground floor the 4th to the 8th road.
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes remaining 24 layers shaping.Before
The blow-out point position in one layer of every accumulation road is the arcing point position in every accumulation road of later layer.The present embodiment is axial most by welding gun
Big arc force points to root area, realizes the good penetration of root area, eliminates root area hole defect, further improves interlayer metallurgical
Bonding strength.The present embodiment reduces the fusing to front layer reflow zone simultaneously, it is to avoid the excessive remelting to front layer reflow zone, realizes electricity
Effective utilization of arc energy.
Contrast on effect
After completing ground floor stack shaping in comparative example and embodiment 1, cross section metal macroscopic view metallographic is respectively such as Fig. 2 and Fig. 3
Shown, two figures of contrast are taken it can be found that the fusion penetration in every layer of accumulation road is significantly greater than the fusion penetration of corresponding accumulation horizon in Fig. 2 in Fig. 3
Welding gun substantially reduces the remelting to front layer with the inclined mode of substrate.Every layer of accumulation road root area penetration scope is also excellent in Fig. 3
Every layer of penetration scope in accumulation road in Fig. 2.
The comparative example of table 1 and the ground floor of embodiment 1 pile up road fusion penetration dpCompare
Embodiment 1 considerably reduces the fusion penetration of preceding layer as can be seen from the above table.The fusing to front layer reflow zone is reduced, is kept away
Exempt from the excessive remelting to front layer reflow zone.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, all those of ordinary skill in the art are completed under without departing from disclosed spiritual and technological thought
All equivalent modifications or change, should be covered by claim of the invention.
Claims (6)
1. a kind of thick-walled structure part electric arc fills silk increasing material manufacturing root area penetration method, and described thick-walled structure part is for more than two-layer
Sandwich construction, every layer by least more than two pile up roads constitute, it is characterised in that：Using electric arc fill silk increasing material manufacturing method into
Shape multilayer multiple tracks structure, the shaping of each synusia is mutually overlapped by least more than two accumulation roads and formed, and the first of each synusia
The road mode of taking welding gun vertical with substrate is piled up to shape, remaining pile up road take welding gun axis and substrate surface into 65 °-
85 ° of shapings, welding gun axis points to root area, maximum arc force is directly acted on root area.
2. a kind of thick-walled structure part electric arc according to claim 1 fills silk increasing material manufacturing root area penetration method, its feature
It is：The described method comprises the following steps：
Step one：Determine arcing point position and forming path, make welding gun axis perpendicular to base plan, complete ground floor first
Shaping；
Step 2：Welding gun adjusts welding gun appearance along perpendicular to first forming path direction horizontal cross movement 2-7mm of ground floor
State, makes welding gun axis point to first root area of ground floor, and welding gun axis, into 65 ° -85 °, completes first with substrate surface angle
The shaping of layer second；
Step 3：Welding gun transverse shifting 2-7mm on ground floor second forming path, completes the shaping in the road of ground floor the 3rd；
Step 4：Continue repeat step three, complete the remaining shaping for piling up road of ground floor；
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes the shaping of the remaining number of plies.
3. a kind of thick-walled structure part electric arc according to claim 1 fills silk increasing material manufacturing root area penetration method, its feature
It is：The blow-out point position in every accumulation road of preceding layer is the arcing point position in every accumulation road of later layer.
4. a kind of thick-walled structure part electric arc according to claim 1 fills silk increasing material manufacturing root area penetration method, its feature
It is：Accumulation road forming path is any SPL.
5. a kind of thick-walled structure part electric arc according to claim 1 fills silk increasing material manufacturing root area penetration method, its feature
It is：Comprise the following steps：
Step one：Determine arcing point position and forming path, make welding gun axis perpendicular to base plan, complete ground floor first
Shaping；
Step 2：Welding gun adjusts posture of welding torch along perpendicular to first forming path direction horizontal cross movement 5mm of ground floor,
Welding gun axis is set to point to first root area of ground floor, welding gun axis, into 75 °, completes ground floor second with substrate surface angle
Shaping；
Step 3：Welding gun transverse shifting 5mm on ground floor second forming path, completes the shaping in the road of ground floor the 3rd；
Step 4：Continue repeat step three, complete the remaining shaping for piling up road of ground floor；
Step 5：Welding gun raises a floor height, continues repeat step one, two, three, four, completes the shaping of the remaining number of plies.
6. a kind of thick-walled structure part electric arc according to claim 1 fills silk increasing material manufacturing root area penetration method, its feature
It is：Increasing material manufacturing technological parameter is：Forming current 110-260A, arc voltage 19-26V, welding gun speed of travel 3-12mm/s.
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| CN107138829A (en) * | 2017-06-16 | 2017-09-08 | 华中科技大学 | A kind of many electric arcs suitable for high-performance metal component cooperate with increasing material manufacturing method |
| CN107486608A (en) * | 2017-07-28 | 2017-12-19 | 西南交通大学 | The GTAW increasing material manufacturing piling height visible detection methods and system of image procossing |
| CN108875149A (en) * | 2018-05-28 | 2018-11-23 | 西南交通大学 | A kind of GMA increasing material manufacturing accumulation road morphology control method |
| CN108856975A (en) * | 2018-07-30 | 2018-11-23 | 西南交通大学 | Mitigate the intelligent water-cooled electric arc increasing material manufacturing device and method of stack layer heat accumulation |
| CN108941858A (en) * | 2018-09-04 | 2018-12-07 | 中国人民解放军陆军装甲兵学院 | A kind of fracture plate MIG arc-welding increasing material reproducing method |
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| CN112846445A (en) * | 2020-12-31 | 2021-05-28 | 南京英尼格玛工业自动化技术有限公司 | Metal structure multilayer multi-channel composite electric arc additive manufacturing method and system |
| CN113996885A (en) * | 2021-11-26 | 2022-02-01 | 西南交通大学 | Method for improving forming precision of arc additive manufacturing edge of thick-wall structural part |
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