CN107116290B - The method of mariages plasma arc surfacing manufacture particles reiforced metal-base composition - Google Patents
The method of mariages plasma arc surfacing manufacture particles reiforced metal-base composition Download PDFInfo
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- CN107116290B CN107116290B CN201710425826.6A CN201710425826A CN107116290B CN 107116290 B CN107116290 B CN 107116290B CN 201710425826 A CN201710425826 A CN 201710425826A CN 107116290 B CN107116290 B CN 107116290B
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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
- B23K10/00—Welding or cutting by means of a plasma
- B23K10/02—Plasma welding
- B23K10/027—Welding for purposes other than joining, e.g. build-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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
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Abstract
The method that mariages plasma arc surfacing manufactures particles reiforced metal-base composition part, the mariages are flux-cored wire and metal welding wire.When built-up welding: opening untransferable arc, correct built-up welding initial position, wire feed position and the wire feed angle that wire feeder adjusts metal welding wire and flux-cored wire are heated by metal welding wire wire feeder and flux-cored wire, it opens transferred arc and carries out built-up welding, metal welding wire wire feeder send metal welding wire to the arc column region of plasma arc in front of welding gun, metal welding wire melts to form molten bath, flux-cored wire heating wire feeder starts wire feed after flux-cored wire is heated to 180 DEG C~220 DEG C, the wire feed time delay of flux-cored wire 1~2 second, after metal welding wire forms molten bath, flux-cored wire is inserted into molten bath from outside the arc column of plasma arc, insertion depth is 2~3mm, under the control of control routine, robotically-driven welding gun is successively accumulated according to both fixed tracks, after the completion of the operation of track, accumulation obtains the metal-based compound of particle enhancing Material parts.
Description
Technical field
The present invention relates to particles reiforced metal-base compositions and increases material manufacturing technology field, especially a kind of to use mariages
The method of plasma arc surfacing manufacture particles reiforced metal-base composition part.
Background technique
In recent years, flourishing with increases material manufacturing technology, using increasing, the manufacture of material technology is particulate reinforced metal-based compound
The technology of material parts and application study continue to increase.Increases material manufacturing technology by particles reiforced metal-base composition prepare and shape
Shape manufacture combines together, and there is short route, high efficiency and low cost etc. to manufacture advantage.
Particles reiforced metal-base composition has both the plasticity of metal, the high intensity of toughness and ceramics, high rigidity, thus aobvious
Physical and mechanical property different from matrix alloy is shown, it is such as higher specific strength, specific stiffness and better thermal stability, wear-resisting
Property and dimensional stability etc..The traditional preparation methods of particles reiforced metal-base composition have powder metallurgic method, stirring casting
Method, vacuum pressure impregnating method and total spray deposition.Wherein, the laser powder sintering process in powder metallurgic method and plasma arc are molten
Area method is all to possess good application prospect with the method for increasing material technical attributes.
Laser powder sintering process is a kind of typical increasing material technology preparation method, made part superior performance, reinforcement point
Cloth is uniform, but manufacturing cost is relatively high, the manufacture of unsuitable medium-and-large-sized part.Plasma arc melts area method and prepares particle enhancing
Metal-base composites is then to utilize plasma arc melting raw material and layer manufacture part.In contrast, plasma arc
Molten area method is a kind of higher increasing material method of production efficiency, is more suitable for the manufacture of medium-and-large-sized part.Existing plasma arc melts area method
Manufacturing process be: during the plasma arc welding (PAW) of parent metal, to metal bath spray ceramic powders, successively accumulation formed
Part.There are the following problems for the manufacturing process: (1) existing plasma arc melts the method that area method generally uses protective gas powder feeding
Powder is sent to molten bath zone, ceramic powders utilization rate is low；(2) due to the surface rebound and surface tension effects in molten bath, pottery
Porcelain powder bath difficult to get access, only amount of powder are covered in weld pool surface, it is difficult to the mixing of deep layer is formed with metallic matrix.
Summary of the invention
The purpose of the present invention is overcoming the problems, such as that existing plasma arc melts area method to exist, provide a kind of using mariages plasma
The method of arc surfacing manufacturing particles reiforced metal-base composition part.
The technical scheme is that the method for mariages plasma arc surfacing manufacture particles reiforced metal-base composition,
Particles reiforced metal-base composition part is manufactured using mariages layer, the mariages is flux-cored wire and metal welding
Silk.The specific steps are that:
A, it prepares flux-cored wire: preparing flux-cored wire using the method for pulling out is rolled, flux-cored wire includes medicine core and shell, and medicine core is pottery
The mixture of porcelain powder and metal powder, shell are metallic matrix.
Before preparing flux-cored wire, ceramic powders and metal powder are sufficiently mixed using ball-milling method, ceramic powders and metal
The volume ratio of powder is determined according to the target volume content of part particulates reinforcements, to guarantee ceramic powders by metal powder packet
It encloses, the volume ratio of metal powder and ceramic powders is greater than 2.
The powder diameter of the metal powder and ceramic powders is 5~150 μm.
The diameter of the flux-cored wire be 1.2~2.4mm, shell with a thickness of 0.3~0.8mm.
The ceramic powders are aluminium oxide silicon carbide titanium carbide either titanium diboride.
The metal powder is the alloy material of aluminium magnesium copper steel or above-mentioned metal.
The outer cover metal matrix is the alloy material of aluminium magnesium copper steel or above-mentioned metal
Material.
B, the preparation of program code: establishing the threedimensional model of part using the CAD software towards increasing material manufacturing, and the model is not
Only include the geological information of part, further includes the variation of ceramic particle density spatially；Then, using Slice Software according to zero
The CAD model of part carries out hierarchy slicing processing, plans and obtain the accumulation path of part, generates robot motion and wire feed rate
Control routine.
C, pretreatment before built-up welding: carrying out surface polishing and descaling and greasy dirt to metal substrate before built-up welding, and
According to flux-cored wire and metal welding wire that the difference of target composite material, selection match with target composite material, then to medicine core
Welding wire and metal welding wire carry out drying and processing, are cooled to room temperature stand-by.
The diameter of the metal welding wire is 1.2~2.4mm, and material is aluminium magnesium copper either steel, or
Person is the alloy material of above-mentioned metal.
D, before built-up welding plasma gun and hot-wire device preparation: on welding machine be arranged be suitble to metal welding wire welding ginseng
Number, metal substrate is fixed on the table, plasma gun, metal welding wire wire feeder and flux-cored wire are heated into wire-feed motor
Structure is separately mounted on robot arm, and the anode of welding machine is connect with metal substrate, the electrode connection of cathode and plasma gun,
The anode of flux-cored wire heating power supply is connect with metal substrate, and cathode is connect with flux-cored wire heating wire feeder.
E, start built-up welding: opening untransferable arc, correct built-up welding initial position, welded by metal welding wire wire feeder and medicine core
Silk heating wire feeder adjusts wire feed position and the wire feed angle of metal welding wire and flux-cored wire, opens transferred arc and carries out heap
Weldering, metal welding wire wire feeder from metal welding wire being sent to the arc column region of plasma arc in front of plasma gun, be placed in etc. from
Immediately below subarc, plasma arc major heat is absorbed, metal welding wire melts to form molten bath.
Flux-cored wire heating wire feeder starts wire feed after flux-cored wire is heated to 180 DEG C~220 DEG C, flux-cored wire
The wire feed time will postpone 1~2 second, and after metal welding wire forms molten bath, flux-cored wire is inserted into molten bath outside the arc column of plasma arc
In, the secondary heat of plasma arc is absorbed, insertion depth is 2~3mm, and flux-cored wire is inserted into outside the arc column of plasma arc, a side
The arc column high temperature center of plasma arc is avoided in face, is avoided the medicine core in flux-cored wire from being melted too early, is on the other hand welded medicine core
Silk is sent to bath, is spread under the effect of metal fluid power to entire molten bath convenient for medicine core after flux-cored wire jacket fusing.
In weld deposit process, different metal welding wire is applicable in different welding parameters.Meanwhile it is molten for the ease of flux-cored wire insertion
Pond, weld deposit process is using the welding parameter for advantageously forming larger volume molten bath.
The welding parameter includes: that welding current is 120~250A, and speed of welding is 50~120mm/min, metal welding
The wire feed rate of silk is 1.6~3.6m/min, and the wire feed rate of flux-cored wire is the 10%~60% of metal welding wire wire feed rate, etc.
Ion arc 0.5~1.5L/min of gas flow, 10~20L/min of argon gas shield gas flow rate.
F, layer-by-layer stack shaping: under the control of control routine, robotically-driven plasma gun according to both fixed tracks into
Row successively accumulation, after the completion of the operation of track, accumulation obtains the metal-base composites part of particle enhancing.
In banking process also ceramic particle concentration can be obtained in spatial position by changing the wire feed rate of flux-cored wire
On variation.
G, part post-processes: according to the metallurgy characteristic of metal-base composites part, selecting suitable heat treatment method, mentions
The overall mechanical properties of high part, then the region high to piece surface required precision carries out machining, reaches rough surface
The requirement of degree.
Compared with the prior art, the invention has the following features:
1, the present invention manufactures particles reiforced metal-base composition part, weld deposit process using mariages plasma arc surfacing
In, flux-cored wire is inserted directly into molten bath, the medicine core containing ceramic powders is transported to bath with mechanism, it is creative
Ground solves the problems, such as that ceramic powders are difficult to enter bath due to the obstruction of weld pool surface tension.
2, the medicine core for the flux-cored wire that the present invention uses prepares flux-cored wire for the mixture of ceramic powders and metal powder
It is preceding to be sufficiently mixed two kinds of powder, can effectively avoid ceramic powders enter behind molten bath with silk gather it is blocking, be conducive to ceramics
Grain phase being uniformly distributed in part.
3, the medicine core effect and unconventional deoxidation of the flux-cored wire that the present invention uses, stable electric arc, adjusting alloying component
Or manufacture protection welding slag, but ceramics enhancing particle is conveyed to molten bath.
4, the present invention merges increases material manufacturing technology simultaneously, and the preparation of particle reinforced material and the manufacture of part shape are integrated
One, greatly improves production efficiency, has a good application prospect.
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
Detailed description of the invention
Attached drawing 1 is the signal using mariages plasma surfacing increasing material manufacturing silicon-carbide particle reinforced aluminium-base composite material member
Figure；
Attached drawing 2 is compound using mariages plasma surfacing increasing material manufacturing titanium carbide granule enhancing Inconel625 alloy substrate
The schematic diagram of material parts；
Attached drawing 3 is the schematic cross-section of flux-cored wire；
Attached drawing 4 is the reinforced phase distribution map of silicon-carbide particle reinforced aluminium-base composite material member section.
Specific embodiment
Embodiment one: the present embodiment uses mariages plasma surfacing increasing material manufacturing enhancing aluminum-base composite material by silicon carbide particles
Part, the specific steps are that:
A, it prepares flux-cored wire: preparing flux-cored wire 7 with the method for pulling out is rolled, flux-cored wire 7 includes medicine core medicine core 7-1 and shell
7-2.According to the material of the material of the component selection medicine core 7-1 of target composite material and shell 7-2 metallic matrix, the present embodiment mesh
The group of mark composite material is divided into enhancing aluminum-base composite material by silicon carbide particles, and medicine core 7-1 is silicon carbide ceramics powder and aluminium powder
Mixture, silicon carbide ceramics powder and aluminium powder are sufficiently mixed using ball-milling method, silicon carbide ceramics powder and aluminium powder contain
The ratio of amount is 1:2, and the powder diameter of silicon carbide ceramics powder and aluminium powder is 50~70 μm, and the metallic matrix of shell 7-2 is
Aluminium, the diameter of flux-cored wire 7 are 1.2mm, shell 7-2 with a thickness of 0.3mm.
B, the preparation of program code: establishing the threedimensional model of part using the CAD software towards increasing material manufacturing, and the model is not
Only include the geological information of part, further includes the variation of ceramic particle density spatially；Then, using Slice Software according to zero
The CAD model of part carries out hierarchy slicing processing, plans and obtain the accumulation path of part, generates robot motion and wire feed rate
Control routine.
C, pretreatment before built-up welding: metal substrate 8 is using the aluminium alloy base plate with a thickness of 15mm, to Metal Substrate before built-up welding
Plate 8 carries out surface polishing and descaling and greasy dirt, carries out drying and processing to metal welding wire 3 and flux-cored wire 7, then cools down
It is stand-by to room temperature.
According to the component selection metal welding wire 3 of target composite material, the group of the present embodiment target composite material is divided into carbonization
Silicon particle intensifying aluminum based compound material, metal welding wire 3 are aluminium welding wire ER1100, diameter 1.2mm.
D, the preparation before built-up welding: metal substrate 8 is fixed on workbench, by plasma gun 4, metal welding
Silk wire feeder 2 and flux-cored wire heating wire feeder 5 are separately mounted on robot arm, the anode and and metal of welding machine 1
Substrate 8 connects, and cathode is connect with the electrode of plasma gun 4, and the anode of flux-cored wire heating power supply 6 connects with metal substrate 8
It connects, cathode is connect with flux-cored wire heating wire feeder 5.
E, start built-up welding: opening untransferable arc, correct built-up welding initial position, pass through metal welding wire wire feeder 2 and medicine core
Welding wire heats wire feeder 5 to adjust wire feed position and the wire feed angle of metal welding wire 3 and flux-cored wire 7, open transferred arc into
Row built-up welding, metal welding wire wire feeder 2 send metal welding wire 3 to the arc column region of plasma arc 10 from 4 front of plasma gun,
It is placed in immediately below plasma arc 10, absorbs 10 major heat of plasma arc, the thawing of metal welding wire 3 forms molten bath 9, and flux-cored wire adds
Flux-cored wire 7 is heated to starting wire feed after 200 DEG C by hot wire feeder 5, and the wire feed time of flux-cored wire 7 will postpone 1~2 second,
After metal welding wire 3 forms molten bath 9, flux-cored wire 7 is inserted into molten bath 9 from outside the arc column of plasma arc 10, absorbs plasma arc
10 secondary heats, insertion depth are 2~3mm, and flux-cored wire 7 is inserted into outside the arc column of plasma arc 10, on the one hand avoid etc. from
The arc column high temperature center of subarc 10 avoids the medicine core 7-1 in flux-cored wire 7 from being melted too early, on the other hand send flux-cored wire 7
To molten bath 9, convenient for medicine core 7-1 after 7 shell 7-2 of flux-cored wire fusing to entire molten bath 9 under the effect of metal fluid power
Diffusion.
In weld deposit process, the wire feed rate of metal welding wire 3 and flux-cored wire 7 is respectively 1.8m/min and 1.0m/min, weldering
Meet electric current 120A, speed of welding 80mm/min, 10 gas flow 0.8L/min of plasma arc, 11 flow 15L/ of protective gas argon gas
min。
F, layer-by-layer stack shaping: under the control of control routine, robotically-driven plasma gun 4 is according to single track multilayer
Scan path is successively accumulated, and after the completion of the operation of track, obtains forming silicon-carbide particle reinforced aluminium-base composite material member 12.
In banking process also ceramic particle concentration can be obtained in spatial position by changing the wire feed rate of flux-cored wire 7
On variation.
G, part post-processes: according to the metallurgy characteristic of metal-base composites part, selecting suitable heat treatment method, mentions
The overall mechanical properties of high silicon carbide particle reinforced aluminium-base composite material member 12, it is then compound to SiC particle-reinforced Al matrix
The high region of 12 surface finish requirements of material parts carries out machining, reaches the requirement of surface roughness.
Silicon-carbide particle reinforced aluminium-base composite material member 12 is detected, obtains carbon using spark discharge wire cutting
The section of silicon carbide particle reinforced aluminum matrix composites part 12, then stack layer microscopic appearance, carbon are observed with optical metallographic microscope
The reinforced phase distribution of silicon carbide particle reinforced aluminum matrix composites part 12 as shown in Fig. 4, is found out, ceramics enhance from attached drawing 4
It is mutually more abundant with the mixing of metal phase, have no ceramic powders agglomeration.
Embodiment two: the present embodiment enhances Inconel 625 using mariages plasma surfacing increasing material manufacturing titanium carbide granule
Alloy substrate composite material parts, the specific steps are that:
A, it preparing flux-cored wire: preparing flux-cored wire 7 with the method for pulling out is rolled, flux-cored wire 7 includes medicine core 7-1 and shell 7-2,
According to the material of the material of the component selection medicine core 7-1 of target composite material and shell 7-2 metallic matrix, the present embodiment target is multiple
The group of condensation material is divided into titanium carbide granule enhancing 625 alloy substrate composite material of Inconel, and medicine core 7-1 is titanium carbide ceramic
End and 625 alloy powder of Inconel, it is using ball-milling method that titanium carbide ceramic powder and 625 alloy powder of Inconel is sufficiently mixed
It closes, the ratio of 625 alloy powder content of titanium carbide ceramic powder and Inconel is 1:3, titanium carbide ceramic powder and Inconel
The powder diameter of 625 alloy powders is 45~95 μm, and the metallic matrix of shell 7-2 is 625 alloy of Inconel, flux-cored wire 7
Diameter be 1.2mm, shell 7-2 with a thickness of 0.3mm.
B, the preparation of program code: establishing the threedimensional model of part using the CAD software towards increasing material manufacturing, and the model is not
Only include the geological information of part, further includes the variation of ceramic particle density spatially；Then, using Slice Software according to zero
The CAD model of part carries out hierarchy slicing processing, plans and obtain the accumulation path of part, generates robot motion and wire feed rate
Control routine.
C, pretreatment before built-up welding: metal substrate 8 is using the Q235 steel substrate with a thickness of 15mm, to Metal Substrate before built-up welding
Plate 8 carries out surface polishing and descaling and greasy dirt, carries out drying and processing to metal welding wire 3 and flux-cored wire 7, then cools down
It is stand-by to room temperature.
According to the material of the material of the component selection medicine core 7-1 of target composite material and shell 7-2 metallic matrix, this implementation
The group of example target composite material is divided into titanium carbide granule enhancing 625 alloy substrate composite material of Inconel, and metal welding wire 3 is
625 alloy welding wire of Inconel, diameter 1.2mm.
D, the preparation before built-up welding: metal substrate 8 is fixed on workbench, by plasma gun 4, metal welding
Silk wire feeder 2 and flux-cored wire heating wire feeder 5 are separately mounted on robot arm, the anode and and metal of welding machine 1
Substrate 8 connects, and cathode is connect with the electrode of plasma gun 4, and the anode of flux-cored wire heating power supply 6 connects with metal substrate 8
It connects, cathode is connect with flux-cored wire heating wire feeder 5.
E, start built-up welding: opening untransferable arc, correct built-up welding initial position, pass through metal welding wire wire feeder 2 and medicine core
Welding wire heats wire feeder 5 to adjust wire feed position and the wire feed angle of metal welding wire 3 and flux-cored wire 7, open transferred arc into
Row built-up welding, metal welding wire wire feeder 2 send metal welding wire 3 to the arc column region of plasma arc 10 from 4 front of plasma gun,
It is placed in immediately below plasma arc 10, absorbs 10 major heat of plasma arc, the thawing of metal welding wire 3 forms molten bath 9, and flux-cored wire adds
Flux-cored wire 7 is heated to starting wire feed after 200 DEG C by hot wire feeder 5, and the wire feed time of flux-cored wire 7 will postpone 1~2 second,
Flux-cored wire 7 from outside the arc column of plasma arc 10 be inserted into molten bath 9 in, absorb the secondary heat of plasma arc 10, insertion depth be 2~
3mm, flux-cored wire 7 are inserted into outside the arc column of plasma arc 10, are on the one hand avoided the arc column high temperature center of plasma arc 10, are avoided
Medicine core 7-1 in flux-cored wire 7 is melted too early, on the other hand send flux-cored wire 7 to molten bath 9, is convenient for flux-cored wire 7
Medicine core 7-1 is spread under the effect of metal fluid power to entire molten bath 9 after shell 7-2 fusing.
In weld deposit process, the wire feed rate of metal welding wire 3 and flux-cored wire 7 is respectively 1.6m/min and 0.8m/min, weldering
Connect electric current 240A, speed of welding 100mm/min, 10 gas flow 1.0L/min of plasma arc, 11 flow of protective gas argon gas
15L/min。
F, layer-by-layer stack shaping: under the control of control routine, robotically-driven plasma gun 4 is according to single track multilayer
Scan path is successively accumulated, stack shaping 300mm × 300mm × 40mm block part 13, and spark discharge line is recycled to cut
It cuts and standard tensile specimen is made.
In banking process also ceramic particle concentration can be obtained in spatial position by changing the wire feed rate of flux-cored wire 7
On variation.
Claims (3)
1. the method that mariages plasma arc surfacing manufactures particles reiforced metal-base composition, it is characterized in that: being layered using mariages
It accumulates to manufacture particles reiforced metal-base composition part, the mariages is flux-cored wire and metal welding wire, specific step
Suddenly are as follows:
A, it prepares flux-cored wire: preparing flux-cored wire using the method for pulling out is rolled, flux-cored wire includes medicine core and shell, and medicine core is ceramic powder
The mixture at end and metal powder, shell is metallic matrix；
Before preparing flux-cored wire, ceramic powders and metal powder are sufficiently mixed using ball-milling method, ceramic powders and metal powder
Volume ratio according to the target volume content of part particulates reinforcements determine, for guarantee ceramic powders surrounded by metal powder, gold
The volume ratio for belonging to powder and ceramic powders is greater than 2；
B, the preparation of program code: establishing the threedimensional model of part using the CAD software towards increasing material manufacturing, which not only wraps
Geological information containing part further includes the variation of ceramic particle density spatially；Then, using Slice Software according to part
CAD model carries out hierarchy slicing processing, plans and obtain the accumulation path of part, generates the control of robot motion and wire feed rate
Code processed；
C, pretreatment before built-up welding: to metal substrate progress surface polishing and descaling and greasy dirt before built-up welding, and according to
The difference of target composite material, the flux-cored wire and metal welding wire that selection matches with target composite material, then to flux-cored wire
Drying and processing is carried out with metal welding wire, is cooled to room temperature stand-by；
D, before built-up welding plasma gun and hot-wire device preparation: on welding machine be arranged be suitble to metal welding wire welding parameter, will
Metal substrate is fixed on the table, by plasma gun, metal welding wire wire feeder and flux-cored wire heating wire feeder point
It is not mounted on robot arm, the anode of welding machine is connect with metal substrate, the electrode connection of cathode and plasma gun, medicine core
The anode of welding wire heating power supply is connect with metal substrate, and cathode is connect with flux-cored wire heating wire feeder；
E, start built-up welding: opening untransferable arc, correct built-up welding initial position, added by metal welding wire wire feeder and flux-cored wire
Hot wire feeder adjusts wire feed position and the wire feed angle of metal welding wire and flux-cored wire, opens transferred arc and carries out built-up welding, gold
Belong to welding wire feeding mechanism to send metal welding wire to the arc column region of plasma arc in front of plasma gun, is placed in plasma arc just
Lower section absorbs plasma arc major heat, and metal welding wire melts to form molten bath, and flux-cored wire heats wire feeder for flux-cored wire
Start wire feed after being heated to 180 DEG C~220 DEG C, the wire feed time of flux-cored wire will postpone 1~2 second, be formed in metal welding wire molten
Chi Hou, flux-cored wire from outside the arc column of plasma arc be inserted into molten bath in, absorb the secondary heat of plasma arc, insertion depth be 2~
3mm, flux-cored wire are inserted into outside the arc column of plasma arc, are on the one hand avoided the arc column high temperature center of plasma arc, are avoided medicine core
Medicine core in welding wire is melted too early, on the other hand send flux-cored wire to bath, after flux-cored wire jacket fusing
Medicine core is spread under the effect of metal fluid power to entire molten bath；
F, layer-by-layer stack shaping: under the control of control routine, robotically-driven plasma gun according to both fixed tracks carry out by
Layer heap product, after the completion of the operation of track, accumulation obtains the metal-base composites part of particle enhancing；
In banking process also ceramic particle concentration can be obtained on spatial position by changing the wire feed rate of flux-cored wire
Variation；
G, part post-processes: according to the metallurgy characteristic of metal-base composites part, selecting suitable heat treatment method, improves zero
The overall mechanical properties of part, then the region high to piece surface required precision carries out machining, reaches surface roughness
It is required that.
2. the method for mariages plasma arc surfacing manufacture particles reiforced metal-base composition as described in claim 1, special
Sign is: the powder diameter of the metal powder and ceramic powders is 5~150 μm；
The diameter of the flux-cored wire be 1.2~2.4mm, shell with a thickness of 0.3~0.8mm；
The ceramic powders are aluminium oxide silicon carbide titanium carbide either titanium diboride；
The metal powder is the alloy material of aluminium magnesium copper steel or above-mentioned metal；
The outer cover metal matrix is the alloy material of aluminium magnesium copper steel or above-mentioned metal；
The metal welding wire diameter is 1.2~2.4mm, and material is aluminium magnesium copper either steel, or on
State the alloy material of metal.
3. the method for mariages plasma arc surfacing manufacture particles reiforced metal-base composition as claimed in claim 1 or 2,
Be characterized in: in weld deposit process, different metal welding wire is applicable in different welding parameters, meanwhile, it is molten for the ease of flux-cored wire insertion
Pond, weld deposit process is using the welding parameter for advantageously forming larger volume molten bath；
The welding parameter includes: that welding current is 120~250A, and speed of welding is 50~120mm/min, metal welding wire
Wire feed rate is 1.6~3.6m/min, and the wire feed rate of flux-cored wire is the 10%~60% of metal welding wire wire feed rate, plasma
Arc gas 0.5~1.5L/min of flow, 10~20L/min of argon gas shield gas flow rate.
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