CN109317781A - A kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure - Google Patents
A kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure Download PDFInfo
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- CN109317781A CN109317781A CN201811279455.6A CN201811279455A CN109317781A CN 109317781 A CN109317781 A CN 109317781A CN 201811279455 A CN201811279455 A CN 201811279455A CN 109317781 A CN109317781 A CN 109317781A
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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
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
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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
- B23K9/02—Seam welding; Backing means; Inserts
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/164—Arc welding or cutting making use of shielding gas making use of a moving fluid
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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
- B23K9/235—Preliminary treatment
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Abstract
A kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure, is related to metal material increasing field；Include the following steps: Step 1: axial one end of short side and the middle part of long side are connected；Establish the model of inclination Y-shaped cross bar；Step 2: carrying out rounded corner transition in the side wall outer of the baseplane of Y-shaped cross bar and open end；Increase extended segment；Step 3: carrying out uniform thickness slice to Y-shaped cross bar along short transverse；Weld seam is designed in the upper surface that every layer is sliced；The position while welding of every layer of section is identical；Step 4: selection rectangular plate-like substrate；Substrate level is placed；Step 5: successively being welded to every layer of slice in the upper surface of substrate along Y-shaped cross bar short transverse；Step 6: being machined out removal, final molding to the Y-shaped cross bar after welding；During the present invention solves electric arc fuse increasing material manufacturing molding inclination Y-shaped cross bar, infall easily occurs overlapping the technical problems such as of poor quality, incomplete fusion.
Description
Technical field
The present invention relates to a kind of metal material increasing field, especially a kind of electric arc fuse increasing material manufacturing inclination Y word intersects
The forming method of muscle structure.
Background technique
The increasing material manufacturing of electric arc fuse ((Wire and Arc Additive Manufacturing, abbreviation WAAM) technology,
It is a kind of Digitized Manufacturing Technology for manufacturing function and structure integration band large-scale metal part.By wire feeding mode, made using electric arc
For heat source, the novel increases material manufacturing technology that metal wire material is directly accumulated is realized.Technology spies such as high, at low cost with deposition efficiency
Point is able to achieve the quick manufacture of the Large Complicated Structural Components such as high-performance high temperature alloy, titanium alloy, aluminium alloy and high-strength steel.With electricity
The component of arc increases material manufacturing technology forming has many advantages, such as that mechanical property is good, production cost is low, forming efficiency is high, is closed extensively
Note.
Y word cross bar is one of structure common in space flight load-carrying member, forms inclination Y using electric arc fuse increasing material manufacturing
During font cross bar, infall easily occurs overlapping of poor quality, incomplete fusion and other issues, above-mentioned currently without being fully solved
The technical measures of problem.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, a kind of electric arc fuse increasing material manufacturing inclination Y is provided
The forming method of word cross bar structure, during solving electric arc fuse increasing material manufacturing molding inclination Y-shaped cross bar, infall
Easily occur overlapping the technical problems such as of poor quality, incomplete fusion.
Above-mentioned purpose of the invention is achieved by following technical solution:
A kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure, includes the following steps:
Step 1: axial one end of short side and the middle part of long side are connected；Establish the model of inclination Y-shaped cross bar；
Step 2: the side wall outer in the baseplane of Y-shaped cross bar carries out rounded corner transition；It is opened in Y-shaped cross bar
Mouth end carries out rounded corner transition；In short side and long side junction along the axially increased extended segment of long side；
Step 3: carrying out uniform thickness slice to Y-shaped cross bar along short transverse；Weldering is designed in the upper surface that every layer is sliced
Seam；The position while welding of every layer of section is identical；
Step 4: selection rectangular plate-like substrate；Substrate level is placed；
Step 5: successively being welded to every layer of slice in the upper surface of substrate along Y-shaped cross bar short transverse；
Step 6: being machined out removal, final molding to the Y-shaped cross bar after welding.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the step 1,
Short side and the angle a of long side are 40 ° -60 °；And short side and the length of long side tie point to long side upper end and the length phase of short side
Together；Y-shaped cross bar uses TC11 titanium alloy material.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the width of the short side
Degree L1 is 20-30mm；The width L2 of long side upper end is 20-30mm；The width L3 of long side lower end is 30-50mm；Long side lower end
Height L4 is 200mm；The height of Y-shaped cross bar is by open end to lower end from 0-200mm even transition.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the step 2,
The rounding radii r1 of the side wall outer of the baseplane of Y-shaped cross bar is 20-50mm；It is carried out in Y-shaped cross bar open end
The method of rounded corner transition are as follows: carry out rounded corner transition at away from the vertical top L5 in open end；L5 length is 30-60mm；Rounding
Angular radius r2 is 30-60mm；The long L6 of extended segment is 30-50mm distance, and wide L7 is 20mm, high to become with Y-shaped cross bar height
Change identical.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the step 3,
The thickness L8 of every layer of slice is 2-2.5mm；The design method of weld seam are as follows: every layer of slice is located at the weld seam of short side part, along short side
Length direction is uniformly distributed；Every layer of slice is located at the weld seam of long side part, is uniformly distributed along long side length direction；Every layer of slice position
Weld seam in extended segment part, along extended segment, length direction is uniformly distributed；The spacing of adjacent 2 weld seams is 5-10mm.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the step 4,
Substrate uses TC11 titanium alloy material；Substrate a length of 500-1000mm, width 500-800mm, thickness 70-120mm.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the step 5,
Welding surroundings are to be welded in the protective cover full of argon gas；The flow of argon gas is 10~30L/min；Welding wire uses when welding
TC11 titanium alloy material, and gage of wire is 1-1.5mm.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, slicing layer is carried out
Welding method particularly includes:
S1: when first layer slice and second layer slice welding, electric current 210-250A；Voltage is 21-25V；Speed of welding
It is 0.8~1.2L/min for 2-4mm/s- plasma gas flow rate；Striking current is the 50~80% of welding current；Blow-out electric current is
The 50-80% of welding current；Arcing time is 0.1-1s；The blow-out time is 0.5-2s；
S1: when third layer slice and slice welding below, electric current 180-220A；Voltage is 21-25V；Speed of welding is
3-6mm/s；Plasma gas flow rate is 0.8-1.2L/min；Striking current is the 50~80% of welding current；Blow-out electric current is weldering
Connect the 50 of electric current；80%；Arcing time is 0.1-1s；The blow-out time is 0.5-2s.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, whenever welding fabrication
When slice thickness is 50-100mm, stop welding；And shaped cut sheets are successively carried out to heating and cooling treatment；Heating time is 3-
8h；Heating temperature is 500-900 DEG C；Cooling efficiency is 2-5 DEG C/min.
In a kind of forming method of above-mentioned electric arc fuse increasing material manufacturing inclination Y word cross bar structure, the step 6,
It include: by the side wall outer of the baseplane of Y-shaped cross bar to the content that the Y-shaped cross bar after welding is machined out removal
Rounded corner transition removal；The rounded corner transition of Y-shaped cross bar open end is removed；Extended segment is removed.
The invention has the following advantages over the prior art:
(1) present invention employs the paths planning method of special molding Y-shaped short side, increase material eventually by electric arc fuse
Manufacture obtained inclination Y-shaped variable cross-section rib；
(2) the rib infall quality of connection that generates of the present invention is good, no incomplete fusion and phenomena such as do not overlap, improves into
The internal soundness and production efficiency of type rib, will be widely used in the material increasing fields such as aerospace and automobile.
Detailed description of the invention
Fig. 1 is Y word cross bar structure top view of the present invention；
Fig. 2 is Y word cross bar the structure left view of the present invention；
Fig. 3 is Y word cross bar structure bottom view of the present invention；
Fig. 4 is extended segment schematic diagram of the present invention；
Fig. 5 is weld seam distribution schematic diagram of the present invention；
Fig. 6 is welding fabrication schematic diagram of the present invention；
Fig. 7 is cross bar shaping structures flow diagram of the present invention.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments:
The present invention provides a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure, solves electric arc
During fuse increasing material manufacturing molding inclination Y-shaped cross bar, easily there are the technologies such as the of poor quality, incomplete fusion of overlap joint and asks in infall
Topic.
It is illustrated in figure 7 cross bar shaping structures flow diagram, as seen from the figure, a kind of electric arc fuse increasing material manufacturing inclination
The forming method of Y word cross bar structure, includes the following steps:
Step 1: being as shown in Figure 1 Y word cross bar structure top view, it is illustrated in figure 2 Y word cross bar the structure left view
As seen from the figure, axial one end of short side 1 is connect with the middle part of long side 2；Establish the model of inclination Y-shaped cross bar；Short side 1 with
The angle a of long side 2 is 40 ° -60 °；And the length of short side 1 and 2 tie point of long side to 2 upper end of long side is identical as the length of short side 1；
Y-shaped cross bar uses TC11 titanium alloy material.The width L1 of short side 1 is 20-30mm；The width L2 of 2 upper end of long side is 20-
30mm；The width L3 of 2 lower end of long side is 30-50mm；The height L4 of 2 lower end of long side is 200mm；The height of Y-shaped cross bar by
Open end to lower end is from 0-200mm even transition.
Step 2: Y word cross bar structure bottom view is illustrated in figure 3, as seen from the figure, in the baseplane of Y-shaped cross bar
Side wall outer carry out rounded corner transition；Rounded corner transition is carried out in Y-shaped cross bar open end；It is illustrated in figure 4 extended segment
Schematic diagram, as seen from the figure, in short side 1 and 2 junction of long side along the axially increased extended segment 3 of long side 2；The bottom of Y-shaped cross bar is flat
The rounding radii r1 of the side wall outer in face is 20-50mm；In the method that Y-shaped cross bar open end carries out rounded corner transition
Are as follows: rounded corner transition is carried out at away from the vertical top L5 in open end；L5 length is 30-60mm；Rounding radii r2 is 30-
60mm；The long L6 of extended segment 3 is 30-50mm distance, and wide L7 is 20mm, high identical as Y-shaped cross bar height change.
Step 3: being illustrated in figure 2 Y word cross bar the structure left view, as seen from the figure, Y-shaped is intersected along short transverse
Muscle carries out uniform thickness slice；It is illustrated in figure 5 weld seam distribution schematic diagram, as seen from the figure, designs weld seam in the upper surface of every layer of slice 6
4；4 position of weld seam of every layer of section is identical；The thickness L8 of every layer of slice 6 is 2-2.5mm；The design method of weld seam 4 are as follows: every layer is cut
Piece 6 is located at the weld seam 4 of 1 part of short side, is uniformly distributed along 1 length direction of short side；Every layer of slice 6 is located at the weld seam of 2 part of long side
4, it is uniformly distributed along 2 length direction of long side；Every layer of slice 6 is located at the weld seam 4 of 3 part of extended segment, and along extended segment, 3 length direction is equal
Even distribution；The spacing of adjacent 2 weld seams 4 is 5-10mm.
Step 4: selection rectangular plate-like substrate 5；Substrate 5 is horizontally arranged；Substrate 5 uses TC11 titanium alloy material；Substrate
5 a length of 500-1000mm, width 500-800mm, thickness 70-120mm.
Step 5: successively being welded to every layer of slice 6 in the upper surface of substrate 5 along Y-shaped cross bar short transverse；
Welding surroundings are to be welded in the protective cover full of argon gas；The flow of argon gas is 10~30L/min；Welding wire uses when welding
TC11 titanium alloy material, and gage of wire is 1-1.5mm.
It is illustrated in figure 6 welding fabrication schematic diagram, as seen from the figure, 6 layers of slice are welded method particularly includes:
S1: when first layer slice 6 and the second layer 6 welding of slice, electric current 210-250A；Voltage is 21-25V；Welding speed
It is 0.8~1.2L/min that degree, which is 2-4mm/s- plasma gas flow rate,；Striking current is the 50~80% of welding current；Blow-out electric current
For the 50-80% of welding current；Arcing time is 0.1-1s；The blow-out time is 0.5-2s；
S1: when third layer slice 6 and 6 welding of slice below, electric current 180-220A；Voltage is 21-25V；Speed of welding
For 3-6mm/s；Plasma gas flow rate is 0.8-1.2L/min；Striking current is the 50~80% of welding current；Blow-out electric current is
The 50 of welding current；80%；Arcing time is 0.1-1s；The blow-out time is 0.5-2s.
When welding, welded according to design weld seam 4 is axial, it is every to have welded one layer of slice 6；The welding of next layer of slice 6
Paths planning method be same as above one layer it is identical, welding starting point and welding end point upper layer are exchanged.
In order to eliminate the thermal stress that electric arc fuse increases rib inner accumulation during material, whenever welding fabrication is sliced 6 thickness
When for 50-100mm, stop welding；And shaped cut sheets 6 are successively carried out to heating and cooling treatment；Heating time is 3-8h；Heating
Temperature is 500-900 DEG C；Cooling efficiency is 2-5 DEG C/min, to achieve the purpose that remove stress annealing.
Step 6: being machined out removal, final molding to the Y-shaped cross bar after welding.Y-shaped after welding is handed over
The content that fork muscle is machined out removal includes: to remove the rounded corner transition of the side wall outer of the baseplane of Y-shaped cross bar；
The rounded corner transition of Y-shaped cross bar open end is removed；Extended segment 3 is removed.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (10)
1. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure, it is characterised in that: including walking as follows
It is rapid:
Step 1: axial one end of short side (1) is connect with the middle part of long side (2)；Establish the model of inclination Y-shaped cross bar；
Step 2: the side wall outer in the baseplane of Y-shaped cross bar carries out rounded corner transition；In Y-shaped cross bar open end
Carry out rounded corner transition；In short side (1) and long side (2) junction along long side (2) axially increased extended segment (3)；
Step 3: carrying out uniform thickness slice to Y-shaped cross bar along short transverse；Design weld seam in the upper surface that (6) are sliced at every layer
(4)；Weld seam (4) position of every layer of section is identical；
Step 4: selection rectangular plate-like substrate (5)；Substrate (5) are horizontal positioned；
Step 5: successively being welded to every layer of slice (6) in the upper surface of substrate (5) along Y-shaped cross bar short transverse；
Step 6: being machined out removal, final molding to the Y-shaped cross bar after welding.
2. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 1, special
Sign is: in the step 1, the angle a of short side (1) and long side (2) is 40 ° -60 °；And short side (1) and long side (2) tie point
Length to long side (2) upper end is identical as the length of short side (1)；Y-shaped cross bar uses TC11 titanium alloy material.
3. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 2, special
Sign is: the width L1 of the short side (1) is 20-30mm；The width L2 of long side (2) upper end is 20-30mm；Long side (2) lower end
Width L3 be 30-50mm；The height L4 of long side (2) lower end is 200mm；The height of Y-shaped cross bar is by open end to lower end
From 0-200mm even transition.
4. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 3, special
Sign is: in the step 2, the rounding radii r1 of the side wall outer of the baseplane of Y-shaped cross bar is 20-50mm；In Y
The method of font cross bar open end progress rounded corner transition are as follows: carry out rounded corner transition at away from the vertical top L5 in open end；
L5 length is 30-60mm；Rounding radii r2 is 30-60mm；The long L6 of extended segment (3) is 30-50mm distance, and wide L7 is
20mm is high identical as Y-shaped cross bar height change.
5. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 4, special
Sign is: in the step 3, the thickness L8 of every layer of slice (6) is 2-2.5mm；The design method of weld seam (4) are as follows: every layer of slice
(6) it is located at the weld seam (4) of short side (1) part, length direction is uniformly distributed along short side (1)；Every layer of slice (6) is located at long side (2)
Partial weld seam (4), along long side (2), length direction is uniformly distributed；Every layer of slice (6) is located at the weld seam of extended segment (3) part
(4), along extended segment (3), length direction is uniformly distributed；The spacing of adjacent 2 weld seams (4) is 5-10mm.
6. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 5, special
Sign is: in the step 4, substrate (5) uses TC11 titanium alloy material；Substrate (5) a length of 500-1000mm, width 500-
800mm, thickness 70-120mm.
7. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 6, special
Sign is: in the step 5, welding surroundings are to be welded in the protective cover full of argon gas；The flow of argon gas be 10~
30L/min；Welding wire uses TC11 titanium alloy material when welding, and gage of wire is 1-1.5mm.
8. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 7, special
Sign is: being welded to slice (6) layer method particularly includes:
S1: when first layer is sliced (6) and second layer slice (6) welding, electric current 210-250A；Voltage is 21-25V；Welding speed
It is 0.8~1.2L/min that degree, which is 2-4mm/s- plasma gas flow rate,；Striking current is the 50~80% of welding current；Blow-out electric current
For the 50-80% of welding current；Arcing time is 0.1-1s；The blow-out time is 0.5-2s；
S1: when third layer is sliced (6) and slice (6) welding below, electric current 180-220A；Voltage is 21-25V；Speed of welding
For 3-6mm/s；Plasma gas flow rate is 0.8-1.2L/min；Striking current is the 50~80% of welding current；Blow-out electric current is
The 50 of welding current；80%；Arcing time is 0.1-1s；The blow-out time is 0.5-2s.
9. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 8, special
Sign is: when welding fabrication slice (6) is with a thickness of 50-100mm, stopping welding；And shaped cut sheets (6) are successively added
Hot and cold is but handled；Heating time is 3-8h；Heating temperature is 500-900 DEG C；Cooling efficiency is 2-5 DEG C/min.
10. a kind of forming method of electric arc fuse increasing material manufacturing inclination Y word cross bar structure according to claim 9,
Be characterized in that: in the step 6, the content that removal is machined out to the Y-shaped cross bar after welding includes: to hand over Y-shaped
Pitch the rounded corner transition removal of the side wall outer of the baseplane of muscle；The rounded corner transition of Y-shaped cross bar open end is removed；It will
Extended segment (3) removal.
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| CN201811279455.6A CN109317781B (en) | 2018-10-30 | 2018-10-30 | Forming method for manufacturing inclined Y-shaped cross rib structure by arc fuse additive manufacturing |
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| CN201811279455.6A CN109317781B (en) | 2018-10-30 | 2018-10-30 | Forming method for manufacturing inclined Y-shaped cross rib structure by arc fuse additive manufacturing |
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| CN115889810A (en) * | 2022-10-28 | 2023-04-04 | 首都航天机械有限公司 | Selective laser melting forming deformation control technology for thin-wall closely-arranged runner component |
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| Publication number | Publication date |
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| CN109317781B (en) | 2020-12-18 |
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