CN108161178A - A kind of aluminum alloy junction component electric arc increases material forming method - Google Patents
A kind of aluminum alloy junction component electric arc increases material forming method Download PDFInfo
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- CN108161178A CN108161178A CN201810099375.6A CN201810099375A CN108161178A CN 108161178 A CN108161178 A CN 108161178A CN 201810099375 A CN201810099375 A CN 201810099375A CN 108161178 A CN108161178 A CN 108161178A
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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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Abstract
The invention discloses a kind of aluminum alloy junction component electric arcs to increase material forming method, if this method is included the following steps by welding dried layer aluminum alloy materials on aluminium alloy molded part：(1) predetermined value of operating current, wire feed rate, weld width, gage of wire is set；(2) (n+1)th layer of welding is performed in the molded part, wherein n+1 layers of welding includes r welding bead, wherein the path of welding direction of adjacent welding bead is opposite；(3) the n-th+2 layers welding are completed, wherein n+2 layers of welding includes r welding bead, and the path of welding of second layer welding is opposite with the path of welding that the first layer welds；(4) step 2 and step 3 are repeated, is finally completed n+m layers of welding, final molding aluminum alloy junction component, wherein n=1,2,3,；M=4,5,6,.
Description
Technical field
The present invention relates to silk material electric arc RP techniques, and in particular, to a kind of aluminum alloy junction component electric arc molding increases
Material method.
Background technology
Aluminum alloy materials density is low, and intensity ratio is near or above high-quality steel, and plasticity is good, is industrially transported extensively
With especially 2 series high strength aluminium alloys and 5 are rust-preventing aluminum alloy, because its good characteristic has been obtained in aerospace field
It widely applies.
Electric arc wire feeding increases material manufacturing technology is that the welding wire of fusing is piled into the gold of three-dimensional structure form by Fundamentals of Welding
Belong to the method for structural member.Compared to rapid laser-shaping technique, electric arc wire feeding increases material manufacturing technology has at low cost, shaping efficiency
High, the advantages that formation tissue is fine and close, the Rapid Prototyping Manufacturing especially suitable for aluminum alloy junction component.
Electric arc increases the stability in the geometrical morphology and forming process of material forming method influence structural member, Chinese patent
CN104005022 A disclose a kind of arc additive of titanium alloy structural part manufacturing method, and main application is closed in ring section titanium
Golden structural member is mainly characterized by a certain layer adjacent annular welding bead using opposite welding direction, and arcing point rotates 30~90 °.
This patent solves the preparation of ring section titanium alloy structure part.This patent is disadvantageous in that, for aluminum alloy junction component,
With forming process accumulation of heat, forming surface smoothness differs, and with the increase of the number of plies, formation tissue compactness and shapes
Journey stability is difficult to ensure, in addition, for complex section structural member, this patent can not be effectively molded.
Invention content
The purpose of the present invention is to provide a kind of aluminum alloy junction component electric arcs to increase material forming method, passes through the reversed of adjacent layer
The methods of direction, adjustment are circumferentially rotated with the special angle of radial overlap distance and welding gun is shaped, realizes the conjunction of complex section aluminium
Golden structural member electric arc increases the stabilization of material process and the compactness of tissue.
The present invention provides following technical scheme：
A kind of aluminum alloy junction component electric arc increases material forming method, if this method on aluminium alloy molded part by welding dried layer
Aluminum alloy materials include the following steps：(1) predetermined value of operating current, wire feed rate, weld width, gage of wire is set；
(2) (n+1)th layer of welding is performed in the molded part, wherein n+1 layers of welding includes r welding bead, wherein the welding road of adjacent welding bead
Diameter direction is opposite；(3) the n-th+2 layers welding are completed, wherein n+2 layer welding includes r welding bead, path of welding that the second layer welds and
The path of welding of the first layer welding is opposite；(4) step 2 and step 3 are repeated, is finally completed n+m layers of welding, final molding aluminium
Alloy structure part, wherein n=1,2,3,；M=4,5,6,.
Further, in step 2, when n+1 is odd number, the formable layer is using molding mode from inside to outside, in institute
It states molded part most inner side and chooses first arcing point, after first of welding is completed when being welded to away from arcing point distance b, radially
Not blow-out outward welds certain distance a and carries out second welding, if repeating welding process completes arterial highway pass weld, complete
After being welded into this layer certain distance c is moved up along perpendicular to the direction of the welding plane.
Further, in step 3, when n+2 is even number, the formable layer is using the molding mode having outside to inside, in institute
It states molded part outermost and chooses second arcing point, second arcing point and first arcing point deviate θ angles in angle, complete
Radially inwardly not blow-out welding certain distance and second welding is carried out after into the welding of first of this layer so that first
It is a that road, which is welded with the overlap distance of second welding, and radial direction welding bead overlap distance is b, repeats welding process and completes r roads altogether
Welding, and welding gun is made to rotate θ angles again.
Further, in step 4, step 2 and step 3 are repeated, is finally completed 56 layers of welding.
Further, a 3.6mm, b 2.8mm, c 1.8mm, r 7, θ are 50 °.
Further, in step 3, when n+2 is even number, the formable layer is using the molding mode having outside to inside, in institute
It states molded part outermost and chooses second arcing point, which is k=d/ along the ratio of offset distance and total welding bead length
360, wherein d*x ≠ 360 (x=1,2,3) after first of welding of the layer is completed, are not put out radially inwardly
Arc welding preset distance simultaneously carries out second welding so that first and the overlap distance of second welding bead are a, radial direction weldering
Road overlap distance is b, repeats welding process and completes r roads welding bead altogether, and welding gun is made to move the total welding bead length of d/360 again.
Further, in step 4, step 2 and step 3 are repeated, is finally completed 66 layers of welding.
Further, a 4.9mm, b 3.8mm, c 2.3mm, r 7, d 50.
Further, electric current 80-200A, wire feed rate 4-10mm/s, weld diameter 0.8-2mm, weld width
For 3-10mm.
Beneficial effects of the present invention are：
(1) the method for the present invention is played compensating action to the surface of out-of-flatness, is made by the reversed forming mode of adjacent layer
It obtains forming process to stablize, aluminum alloy junction component formation tissue is fine and close, and ingredient is uniform, and internal soundness is good；
(2) the method for the present invention need not add Surface testing link, and forming efficiency is high, and material removing rate is low, shorten manufacture
Period simultaneously reduces manufacture cost；
(3) the method for the present invention can form the aluminum alloy junction component of complex section shape, improve aluminum alloy junction component geometry
Shape formable ability.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Example is applied together for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
A kind of Fig. 1 aluminium alloy typical structure part cross-sectional scans path signals disclosed in embodiment of the present invention
Figure；
Fig. 2 is a kind of aluminum alloy complex structural member cross-sectional scans path disclosed in another embodiment of the present invention
Schematic diagram；
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein
It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
A kind of aluminum alloy junction component electric arc increases material forming method, if this method on aluminium alloy molded part by welding dried layer
Aluminum alloy materials include the following steps：(1) predetermined value of operating current, wire feed rate, weld width, gage of wire is set,
Wherein, electric current 80-200A, wire feed rate 4-10mm/s, weld diameter 0.8-2mm, weld width 3-10mm；(2)
Welding gun performs (n+1)th layer of welding in the molded part, and wherein n+1 layers of welding includes r welding bead, wherein the welding road of adjacent welding bead
Diameter direction is opposite；(3) the n-th+2 layers welding are completed, wherein n+2 layers of welding includes r welding bead, the path of welding of second layer welding
It is opposite with the path of welding of first layer welding；(4) step 2 and step 3 are repeated, is finally completed n+m layers of welding, finally into
Type aluminum alloy junction component, wherein n=1,2,3,；M=3,4,5,.
Further, in step 2, when n+1 is odd number, the formable layer is using molding mode from inside to outside, in institute
It states molded part most inner side and chooses first arcing point, after first of welding is completed when being welded to away from arcing point distance b, radially
Not blow-out outward welds certain distance a and carries out second welding, if repeating welding process completes arterial highway pass weld, complete
After being welded into this layer certain distance c is moved up along perpendicular to the direction of the welding plane.
Further, in step 3, when n+2 is even number, the formable layer is using the molding mode having outside to inside, in institute
It states molded part outermost and chooses second arcing point, second arcing point and first arcing point deviate θ angles in angle, complete
Radially inwardly not blow-out welding certain distance and second welding is carried out after into the welding of first of this layer so that first
It is a that road, which is welded with the overlap distance of second welding, and radial direction welding bead overlap distance is b, repeats welding process and completes r roads altogether
Welding, and welding gun is made to rotate θ angles again.
Further, the embodiment of Fig. 1 is can refer to, the cross sectional shape of alloy structure part is typical circular ring section, high
It spends for 100mm, thickness 23mm.Baseplate material is 5A05 aluminum alloy plate materials, and the welding wire trade mark is 5356, diameter 1.2mm, protects gas
Body is 99.999% high-purity argon gas, and flow 20L/mi n, welding current 160A, wire feed rate 7mm/s, the wide 5mm of welding bead are high
1.8mm.Certain cross-sectional scans path as shown in Figure 1, the specific steps are：1st, as shown in Figure 1a, first is chosen in molded part most inner side
A arcing point starts the welding of first of first layer from inside to outside；2nd, first is completed when being welded to away from arcing point distance b
First of welding of layer, the welding of radially not blow-out outward at this time certain distance a simultaneously carry out second welding, first with
The overlap distance of second is a=3.6mm, and radial direction welding bead overlap distance is b=2.8mm；3rd, step 2 is repeated to complete in addition
5 welding beads, first layer forming are fully completed, and are being received acnode receipts arc and are being moved up certain distance along perpendicular to the direction of welding plane
1.8mm；4th, second layer forming is using the forming mode of ecto-entad, and as shown in Figure 1 b, welding gun chooses the in molded part outermost
Two arcing points, the arcing point and first arcing point deviate θ=50 °, the welding that first of the beginning second layer in angle；5、
With method described in step 2, after completing first of the second layer, radially not blow-out welding certain distance and carry out inwardly
Second welds so that first is 3.6mm with second overlap distance, and radial direction welding bead overlap distance is 2.8mm；6th, again
Multiple step 5 is until second layer forming is fully completed；7th, welding gun rotates θ=50 ° again, repeats step 2 to step 6, completes remaining
56 layers of accumulation, 5 line aluminium alloy structural members of final shaped structure densification are completed in the welding of layer altogether.
Further, different molding approach can be used for different contoured cross-sections.In step 3, when n+2 is even number
When, which chooses second arcing point, the arcing point using the molding mode having outside to inside in the molded part outermost
It is k=d/360 along the ratio of offset distance and total welding bead length, wherein d*x ≠ 360 (x=1,2,3), complete should
After first of welding of layer, radially not blow-out welds preset distance and carries out second welding inwardly so that first
Overlap distance with second welding bead is a, and radial direction welding bead overlap distance is b, repeats welding process and completes r roads welding bead altogether,
And welding gun is made to move the total welding bead length of d/360 again.
Specifically, with reference to the embodiment of Fig. 2, the cross sectional shape of aluminum alloy junction component is complicated circular ring section, highly
For 150mm, thickness 15mm.The source of welding current is 3200 CMT of Fronius TPS, and welding gun clamping is in 1,410 6 axis of ABB IRB
In robot, baseplate material is 2A12 aluminum alloy plate materials, and welding wire customizes welding wire, diameter 1.2mm for 2A12 ingredients, and protective gas is
99.999% high-purity argon gas, flow 25L/min, welding current 200A, wire feed rate 9mm/s, the wide 7.5mm of welding bead are high
2.3mm.Cross-sectional scans path as shown in Fig. 2, the specific steps are：1st, as shown in Figure 2 a, first is chosen in molded part most inner side
Arcing point starts the welding of first of first layer from inside to outside；2nd, first layer is completed when being welded to away from arcing point distance b
First of welding, the welding of radially not blow-out outward at this time certain distance a simultaneously carry out second welding, first and the
Two overlap distance is a=4.9mm, and radial direction welding bead overlap distance is b=3.8mm；3rd, it repeats step 2 and carries out other 3
A pass weld, first layer forming are fully completed, and are being received acnode receipts arc and are being moved up a spacing along perpendicular to the direction of welding plane
From 2.3mm；4th, second layer forming uses the forming mode of ecto-entad, since section is complex-curved, it is impossible to according to rotation angle
Degree defines next arcing point, accounts for total welding distance definition by the distance of arcing point along curve movement here, ratio takes
50/360.As shown in Figure 2 b, welding gun chooses second arcing point, the welding that first of the beginning second layer in molded part outermost；
5th, with method described in step 2, after completing first of the second layer, radially not blow-out welding certain distance is gone forward side by side inwardly
Row second welds so that first is 4.9mm with second overlap distance, and radial direction welding bead overlap distance is 3.8mm；6
Step 5 is repeated until second layer forming is fully completed；7th, welding gun moves 50/360 total welding bead length again, repeats step 2 to step
Rapid 6, the welding of rest layers is completed, completes 66 layers of accumulation, 2 line aluminium alloy structural members of final shaped structure densification altogether.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (9)
1. a kind of aluminum alloy junction component electric arc increases material forming method, which is characterized in that this method passes through on aluminium alloy molded part
If welding dried layer aluminum alloy materials, include the following steps：
(1) predetermined value of operating current, wire feed rate, weld width, gage of wire is set；
(2) (n+1)th layer of welding is performed in the molded part, wherein n+1 layers of welding includes r welding bead, wherein the weldering of adjacent welding bead
It is opposite to connect path direction；
(3) the n-th+2 layers welding are completed, wherein n+2 layer welding includes r welding bead, path of welding that the second layer welds and described the
The path of welding of one layer of welding is opposite；
(4) step 2 and step 3 are repeated, is finally completed n+m layers of welding, final molding aluminum alloy junction component, wherein n=1,2,
3,；M=4,5,6,.
2. aluminum alloy junction component electric arc as described in claim 1 increases material forming method, which is characterized in that in step 2, works as n+
1 when being odd number, which chooses first arcing point using molding mode from inside to outside in the molded part most inner side,
After first of welding is completed when being welded to away from arcing point distance b, radially side not blow-out welding certain distance a and carry out
Second welds, if repeating welding process completes arterial highway pass weld, along perpendicular to the welding plane after layer welding is completed
Direction move up certain distance c.
3. aluminum alloy junction component electric arc as claimed in claim 2 increases material forming method, which is characterized in that in step 3, works as n+
2 when being even number, which chooses second arcing point using there is molding mode outside to inside, in the molded part outermost,
Second arcing point and first arcing point deviate θ angles in angle, after the welding for completing first of this layer radially
Inside not blow-out welding certain distance simultaneously carries out second welding so that welding the overlap distance welded with second first is
A, radial direction welding bead overlap distance are b, repeat welding process and complete the welding of r roads altogether, and welding gun is made to rotate θ angles again.
4. aluminum alloy junction component electric arc as claimed in claim 3 increases material forming method, which is characterized in that in step 4, repeats
Step 2 and step 3 are finally completed 56 layers of welding.
5. aluminum alloy junction component electric arc as claimed in claim 4 increases material forming method, which is characterized in that a 3.6mm, b are
2.8mm, c 1.8mm, r 7, θ are 50 °.
6. aluminum alloy junction component electric arc as claimed in claim 2 increases material forming method, which is characterized in that in step 2, works as n+
2 when being even number, which chooses second arcing point using there is molding mode outside to inside, in the molded part outermost,
The arcing point is k=d/360 along the ratio of offset distance and total welding bead length, wherein d*x ≠ 360 (x=1,2,3),
After first of welding of the layer is completed, radially not blow-out welds preset distance and carries out second welding inwardly, makes
It obtains first and the overlap distance of second welding bead is a, radial direction welding bead overlap distance is b, repeats welding process and completes r altogether
Road welding bead, and welding gun is made to move the total welding bead length of d/360 again.
7. aluminum alloy junction component electric arc as claimed in claim 6 increases material forming method, which is characterized in that in step 4, repeats
Step 2 and step 3 are finally completed 66 layers of welding.
8. aluminum alloy junction component electric arc as claimed in claim 7 increases material forming method, which is characterized in that a 4.9mm, b are
3.8mm, c 2.3mm, r 7, d 50.
9. the aluminum alloy junction component electric arc as described in any one of claim 1-8 increases material forming method, which is characterized in that electric current
For 80-200A, wire feed rate 4-10mm/s, weld diameter 0.8-2mm, weld width 3-10mm.
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Cited By (5)
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| CN109530851A (en) * | 2018-12-11 | 2019-03-29 | 北京航星机器制造有限公司 | A kind of aluminium alloy hanging structure part electric arc increasing material manufacturing method |
| CN109759707A (en) * | 2019-01-13 | 2019-05-17 | 大连理工大学 | A kind of aluminium alloy annular element laser tungsten inert- gas arc hybrid heat source increasing material manufacturing method |
| CN111702381A (en) * | 2020-06-23 | 2020-09-25 | 石家庄坚持科技有限公司 | Screen slice welding control method and system and terminal equipment |
| CN113695709A (en) * | 2021-09-06 | 2021-11-26 | 上海航天精密机械研究所 | Aerospace force-bearing structure arc fuse additive path planning method for designing tail stock |
| FR3135219A1 (en) * | 2022-05-03 | 2023-11-10 | Naval Group | Process for manufacturing a part by additive manufacturing by wire deposition |
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Application publication date: 20180615 |