CN106735730A - Electric arc silk filling increasing material manufacturing method and device - Google Patents
Electric arc silk filling increasing material manufacturing method and device Download PDFInfo
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- CN106735730A CN106735730A CN201611192727.XA CN201611192727A CN106735730A CN 106735730 A CN106735730 A CN 106735730A CN 201611192727 A CN201611192727 A CN 201611192727A CN 106735730 A CN106735730 A CN 106735730A
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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
- B23K9/042—Built-up welding on planar surfaces
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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
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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Abstract
The present invention provides a kind of electric arc silk filling increasing material manufacturing method and device.Device includes the control module being connected with each other, makes module and power module.Wherein, control module is used to control to make module action, to make product, and controls power module to provide electric current.Power module is used under the control of control module, to the compound superaudio pulse current of module output is made, thermal source is provided with to make module.The compound superaudio pulse that the present invention is added has notable modulating action to GTAW electric arcs, arc constriction is notable, arc force is greatly improved, can improve sedimentary penetration rate, reduce sedimentary side surface roughness, and arc-ultrasonic effect can cause liquid state of molten pool metal forced vibration, make liquid metal flows that bicyclic stream mode is presented, help to reduce gas hole defect, crystal grain thinning tissue improves component performance.
Description
Technical field
The present invention relates to increases material manufacturing technology field, more particularly to a kind of electric arc silk filling increasing material manufacturing method and device.
Background technology
Increases material manufacturing technology is the emerging manufacturing technology that last century the eighties are risen and developed rapidly.Difference
The material that subtracts of machining is manufactured again after tradition casting, forging need die forming blank, and increasing material manufacturing is the direct fast short-term training without mould
Shape technology, based on " discrete-to pile up " principle, according to part C AD models, reality is directly produced by way of material successively adds up
Body part.Increases material manufacturing technology leads the development of " design/manufacture/material " Trinity pattern, has complied with new technology revolution
Development trend, drive manufacturing industry is from traditional extensive, batch production pattern to personalized, customization, the mould of small lot batch manufacture
Formula makes the transition.The increasing material manufacturing of single and mini-batch production metal structure parts has important meaning in the research and development manufacturing process of new model model machine
Justice, can greatly shorten new machine trial-production and the cycle developed.
At present, it is main to complete some small size aviation key structures zero using based on laser or electron beam increasing material manufacturing technique
The increasing material manufacturing process of part.The factors such as the high cost of laser or electron beam increasing material manufacturing are limited to, it develops and application
Limited by larger.Comparatively speaking, electric arc silk filling increases material manufacturing technology has in the manufacturing process of large scale aviation component
Bigger advantage.Electric arc fills silk typical process one of of the increases material manufacturing technology as metal parts direct forming, and it utilizes electric arc
Thermal source fusing filling silk material material, is directly successively piled up by CAD model in the case of without mould and forms metal solid part.Should
The problems such as technology overcomes traditional manufacturing technology and needs mould and complex procedures, with deposition efficiency it is high, forming dimension is big, set
Standby simple, the low advantage of manufacturing cost, is to realize high-quality theoretical density metal parts economy, quick manufacturing process.
High strength alumin ium alloy has specific strength high, specific modulus and the property such as good fracture toughness, antifatigue, corrosion-resistant because of it
Can, the primary structural material of business aircraft has been used as since the thirties in 20th century, it is the widely used material of aircraft industry.At present
In terms of increasing material manufacturing method, because Al alloy powder density is small, oxidizable, so as to cause the pole in laser gain material manufacturing process
It is also easy to produce the major defects such as a large amount of stomatas, it is difficult to meet the quality requirement of aviation key structure high strength alumin ium alloy parts.
The content of the invention
The present invention provides a kind of electric arc silk filling increasing material manufacturing method and device, is used to solve prior art in increasing material manufacturing
A large amount of stomatas are easily produced in journey, causes the technical problem of the parts quality dissatisfaction of production.
One aspect of the present invention provides a kind of electric arc silk filling increasing material manufacturing device, including：The control module of interconnection, making
Module and power module, wherein, control module is used to control to make module action, to make product, and controls power module
Electric current is provided；Power module is used under the control of control module, to the compound superaudio pulse current of module output is made, think
Make module and thermal source is provided.
Further, module is made including wire feed submodule and for the heat according to produced by arc discharge that wire feed is sub
Module provide wire melting welding gun, wherein, welding gun is connected with power module and control module, wire feed submodule and control mould
Block be connected, under the control of control module for welding gun provides welding wire.
Further, also including the loading module for placing the product for making module making.
Further, making module also includes the protection gas for being used to provide protective gas to prevent the welding wire of fusing oxidized
Module.
Further, superaudio pulse current is combined to be folded with superaudio pulse current by Fast transforms Variable Polarity Square-wave AC electric current
Plus form.
Further, the electric current for being combined superaudio pulse current is more than 50A/ μ s along transformation rate.
Further, loading module is the displacement machine worktable that welding gun can be coordinated to move.
Further, protective gas is argon gas or helium.
Another aspect of the present invention provides a kind of electric arc that production is carried out according to above-mentioned electric arc silk filling increasing material manufacturing device
Fill silk increasing material manufacturing method, including：
Step 101, control module draws the threedimensional model of product, and carries out hierarchy slicing treatment to threedimensional model, to obtain
Obtain the two-dimensional silhouette of each layer cross section；
Step 102, obtains the two-dimensional silhouette of certain layer cross section, and control module is obtained and produced according to the two-dimensional silhouette of the layer cross section
The movement locus of product manufacturing process；
Step 103, control module controls power module to the compound superaudio pulse current of module output is made, to make mould
Block makes product and provides thermal source；
Step 104, control module control makes module and is acted according to movement locus, to complete the making in section；
Step 105, repeat step 102 to step 104, untill all layer cross sections complete.
Further, step 104 is specifically included：
Control module controls wire feed submodule to provide welding wire to welding gun, wherein, making module includes wire feed submodule and weldering
Rifle；
Welding gun obtains the compound superaudio pulse current that power module is provided, and the heat general according to produced by arc discharge
The wire melting that wire feed submodule is provided；
Control module controls welding gun to be moved according to movement locus, and in moving process, welding gun is constantly by wire feed submodule
The wire melting of offer, to complete the making of the current layer cross section of product.
The electric arc silk filling increasing material manufacturing method and device that the present invention is provided, adds compound superaudio pulse to have GTAW electric arcs
Notable modulating action, significantly, arc force is greatly improved arc constriction, can improve sedimentary penetration rate, reduces sedimentary side table
Surface roughness, and arc-ultrasonic effect can cause liquid state of molten pool metal forced vibration, make liquid metal flows that double loop mould is presented
Formula, contributes to scavenging port defect, and crystal grain thinning improves component (i.e. product) structure property.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
The fundamental diagram of the increasing material manufacturing method that Fig. 1 is provided for the present invention；
One structural representation of the electric arc silk filling increasing material manufacturing device that Fig. 2 is provided for the present invention；
The compound specific oscillogram of superaudio pulse current that Fig. 3 is provided for the present invention；
Fig. 4 illustrates for the compound superaudio pulsed GTAW electric arc of use that the present invention is provided with routine GTAW electric arcs Contrast on effect
Figure；
Another structural representation of the electric arc silk filling increasing material manufacturing device that Fig. 5 is provided for the present invention；
The structural representation of the electric arc silk filling increasing material manufacturing device specific embodiment that Fig. 6 is provided for the present invention；
The schematic flow sheet of the electric arc silk filling increasing material manufacturing method that Fig. 7 is provided for the present invention.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, the fundamental diagram of the increasing material manufacturing method that Fig. 1 is provided for the present invention, first, using mapping software
(such as Three-dimensional CAD Software) draws the threedimensional model (shown in (a) in such as Fig. 1) of required component on computers, and soft by cutting into slices
Part carries out hierarchy slicing treatment to institute's established model (i.e. shown in (b) in Fig. 1), obtains the two-dimensional silhouette of each layer cross section (such as (c) institute
Show)；Secondly, after processing the slice of data of these two-dimensional silhouettes, using programming technique, the movement locus generation of welding gun is generated
Code；Finally, using the method for electric arc silk filling increasing material manufacturing, as shown in (d), A is tungsten electrode, is arranged on welding gun, and C is welding wire, and B is
Electric arc, for by wire melting, welding successively being piled up using the mode of arc-melting welding wire, forms each cross section profile.
After the completion of being piled up per layer cross section, the thickness that certain height d, d is every layer cross section is lifted by welding robot control system Butt welding gun
Degree, and then carry out the accumulation of next layer cross section.And so on, until completing the increasing material manufacturing of total part.S in Fig. 11It is
One layer cross section, S2It is the second layer cross section, SnLast layer cross section is represented, welding gun needs up to be made since the first layer cross section,
During whole making, substrate is played a supporting role.
The structural representation of the electric arc silk filling increasing material manufacturing device that Fig. 2 is provided for the present invention；As shown in Fig. 2 the present embodiment
A kind of electric arc silk filling increasing material manufacturing device is provided, including：The control module 1 of interconnection, making module 2 and power module 3, its
In, control module 1 is used to control making module 2 to act, and to make product, and controls power module 3 to provide electric current；Power supply mould
Block 3 is used under the control of control module 1, to the compound superaudio pulse current of the output of module 2 is made, be provided with to make module 2
Thermal source.
Wherein, it is combined superaudio pulse current and superaudio pulse is superimposed on the basis of Fast transforms Variable Polarity Square-wave AC electric current,
The electric current more than 50A/ μ s is capable of achieving along transformation rate, its compound superaudio pulse current frequency IcIt is multiple for 0~80kHz is adjustable
Close superaudio pulse current amplitude IcFor 0~100A is adjustable, Fast transforms Variable Polarity Square-wave AC power frequency can for 0.1-500Hz
Adjust, the compound superaudio specific waveform of pulse current refer to Fig. 3.
In the present embodiment, compound superaudio pulse is added to gas tungsten arc welding (Gas Tungsten Arc
Weld, abbreviation GTAW) electric arc has a notable modulating action, and significantly, arc force is greatly improved arc constriction, can make sedimentary penetration rate
Improve, reduce sedimentary side surface roughness, and arc-ultrasonic effect can cause liquid state of molten pool metal forced vibration, make liquid gold
Category flowing is presented bicyclic stream mode, helps to reduce gas hole defect, and crystal grain thinning tissue improves component (i.e. product) performance.Enter
One step, high-power superaudio pulse square wave GTAW electric arcs are very suitable for the increasing material manufacturing for high strength alumin ium alloy structural member
Journey.
As shown in figure 4, Fig. 4 is in compound superaudio pulsed GTAW electric arc provided in an embodiment of the present invention and routine GTAW electricity
Arc shape, molten bath flow performance and sedimentary formed features contrast schematic diagram under arc effect, wherein, left side is routine GTAW
Electric arc, right side is compound superaudio pulsed GTAW electric arc.Figure 4, it can be seen that compound superaudio pulsed GTAW arc constriction shows
Write, liquid metal flows are presented bicyclic stream mode, the smaller (W of sedimentary side surface roughness2>W1)。
As shown in Fig. 2 in a specific embodiment of the invention, making module 2 includes wire feed submodule 21 and for root
The welding gun 22 of wire feed submodule 21 is provided wire melting according to the heat produced by arc discharge, wherein, welding gun 22 and power supply
Module 3 is connected with control module 1, and wire feed submodule 21 is connected with control module 1, for being weldering under the control of control module 1
Rifle 22 provides welding wire.
Another structural representation of the electric arc silk filling increasing material manufacturing device that Fig. 5 is provided for the present invention, please join Fig. 2, Fig. 5,
In another specific embodiment of the invention, said apparatus also include being made for placing the loading module of the product that module 2 makes
4.Loading module 4 is the displacement machine worktable that welding gun 22 can be coordinated to move.Displacement machine worktable can coordinate welding gun 22 to convert one
Fixed station, it is ensured that the flexibility of increasing material manufacturing, while overcoming the limitation of the manipulator motion scope for driving the movement of welding gun 22, increase
Component can manufacture size.
In another specific embodiment of the invention, making module 2 is also included for providing protective gas to prevent fusing
The oxidized protection gas module 23 of welding wire.Protective gas is argon gas or helium, for electric arc provides necessary environmental protection, is prevented
Only product (such as aluminium alloy element) is oxidized during arcing, further avoids gas hole defect.
In another specific embodiment of the invention, as shown in fig. 6, welding gun 22 and wire feed submodule 21 are arranged at robot
On 4a, 6a is the wire tray in wire feeder, and 9a is the tungsten electrode of welding gun 22, and 5a is to protect the gas cylinder in gas module 23, for storing
Protective gas, 1a is power module 3, and 2a is displacement machine worktable, and for placing the product for making, 3a is switch board, switch board
3a is connected with displacement machine worktable 2a and robot 4a, displacement machine worktable 2a and robot 4a can be controlled, with movement
Their position.Remote-control box 8a is connected with robot 4a, is controlled for the action to robot 4a.Remote-control box 8a and calculating
Machine 7a belongs to control module 1.The equipment that the present embodiment is provided is simple, and Meteorological is low, using power module 1a, robot
Integrated manufacture platform by the devices such as 4a, displacement machine worktable 2a, and increasing material manufacturing process is relatively low to environmental requirement, without vacuum
Room (is provided protection gas by gas cylinder 5a) in electric arc welding process, conjugates the machine worktable convertible certain stations of 2a, is made in machine
In the range of device people's movement locus, the Integrated manufacture platform is further adapted for the manufacture of coarse scale structures part.Further, robot
4a has many, and switch board 3a can cooperate with Duo Tai robots 4a to work, and increase manufacture efficiency.
As shown in fig. 7, the present invention is also provided carries out one kind of production according to above-mentioned electric arc silk filling increasing material manufacturing device
Electric arc silk filling increasing material manufacturing method, including：
Step 101, control module draws the threedimensional model of product, and carries out hierarchy slicing treatment to threedimensional model, to obtain
Obtain the two-dimensional silhouette of each layer cross section.Control module include computer or other drawing three-dimensional model and slicing treatment can be carried out
Smart machine.
Step 102, control module obtains the movement locus of production process according to two-dimensional silhouette.
Step 103, control module controls power module to the compound superaudio pulse current of module output is made, to make mould
Block makes product and provides thermal source.Compound superaudio pulse current is superimposed superaudio on the basis of Fast transforms Variable Polarity Square-wave AC electric current
Pulse, is capable of achieving the electric current more than 50A/ μ s along transformation rate.
Step 104, control module control makes module and is acted according to movement locus, corresponding with two-dimensional silhouette to complete
The product section making.
Step 105, after being completed per layer cross section, control module control welding gun carries out the making of next layer cross section, so
Back and forth, until whole production is completed.Acted according to movement locus as control module control makes module, be sequentially completed
First layer cross section S in Fig. 11, the second layer cross section S2, until n-th layer section SnMaking.
In the present embodiment, compound superaudio pulse is added to gas tungsten arc welding (Gas Tungsten Arc
Weld, abbreviation GTAW) electric arc has a notable modulating action, and significantly, arc force is greatly improved arc constriction, can make sedimentary penetration rate
Improve, reduce sedimentary side surface roughness, and arc-ultrasonic effect can cause liquid state of molten pool metal forced vibration, make liquid gold
Category flowing is presented bicyclic stream mode, helps to reduce gas hole defect, and crystal grain thinning improves component structure property.
In a specific embodiment of the invention, step 104 is specifically included：Control module controls wire feed submodule to welding gun
Welding wire is provided, wherein, making module includes wire feed submodule and welding gun；Welding gun obtains the compound superaudio arteries and veins that power module is provided
Rush electric current, and the wire melting that heat according to produced by arc discharge provides wire feed submodule；Control module controls welding gun
Moved according to movement locus, in moving process, the wire melting that welding gun constantly provides wire feed submodule, to complete and two
The making in the corresponding product section of dimension profile.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of electric arc fills silk increasing material manufacturing device, it is characterised in that including：The control module of interconnection, make module and
Power module, wherein, the control module is used to control the making module action, to make product, and controls the electricity
Source module provides electric current；The power module is used under the control of the control module compound super to the making module output
Tonepulse electric current, thermal source is provided with for the making module.
2. electric arc according to claim 1 fills silk increasing material manufacturing device, it is characterised in that the making module includes wire feed
The welding gun of submodule and the wire feed submodule is provided wire melting for the heat according to produced by arc discharge, its
In, the welding gun is connected with the power module and the control module, and the wire feed submodule is connected with the control module,
For under the control of the control module for the welding gun provides the welding wire.
3. electric arc according to claim 2 fills silk increasing material manufacturing device, it is characterised in that also including for placing the system
Make the loading module of the product of module making.
4. electric arc according to claim 2 fills silk increasing material manufacturing device, it is characterised in that the making module also includes using
In the protection gas module for providing protective gas to prevent the welding wire of fusing oxidized.
5. electric arc according to claim 1 fills silk increasing material manufacturing device, it is characterised in that the compound superaudio pulse electricity
Stream is formed by stacking by Fast transforms Variable Polarity Square-wave AC electric current with superaudio pulse current.
6. electric arc according to claim 1 fills silk increasing material manufacturing device, it is characterised in that the compound superaudio pulse electricity
The electric current of stream is more than 50A/ μ s along transformation rate.
7. electric arc according to claim 3 fills silk increasing material manufacturing device, it is characterised in that the loading module is can to match somebody with somebody
Close the displacement machine worktable of the welding gun movement.
8. electric arc according to claim 4 fills silk increasing material manufacturing device, it is characterised in that the protective gas be argon gas or
Person's helium.
9. a kind of electric arc for carrying out production according to any described electric arc silk filling increasing material manufacturing devices of claim 1-8 fills silk
Increasing material manufacturing method, it is characterised in that including：
Step 101, control module draws the threedimensional model of product, and carries out hierarchy slicing treatment to the threedimensional model, to obtain
Obtain the two-dimensional silhouette of each layer cross section；
Step 102, obtains the two-dimensional silhouette of certain layer cross section, and the control module obtains institute according to the two-dimensional silhouette of the layer cross section
State the movement locus of production process；
Step 103, the control module control power module, to the compound superaudio pulse current of making module output, is institute
Product described in stating making module making provides thermal source；
Step 104, the control module control making module is acted according to the movement locus, to complete described cutting
The making in face；
Step 105, repeat step 102 to step 104, untill all layer cross sections complete.
10. electric arc according to claim 9 is filled silk increasing material manufacturing method, it is characterised in that step 104 is specifically included：
The control module control wire feed submodule provides welding wire to welding gun, wherein, the making module includes wire feed submodule
And welding gun；
The welding gun obtains the compound superaudio pulse current that the power module is provided, and the heat according to produced by arc discharge
Measure the wire melting that the wire feed submodule is provided；
The control module controls the welding gun to be moved according to the movement locus, and in moving process, the welding gun is continuous
The wire melting that the wire feed submodule is provided, to complete the making of the current layer cross section of the product.
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