CN208116760U - High-frequency induction heating assists cold spraying deposited metal 3D printer - Google Patents

Abstract

The utility model relates to a kind of high-frequency induction heatings to assist cold spraying deposited metal 3D printer, feature be include cabinet, print tray substrate, print pallet mounting base, print pallet, printing head, horizontal plane motion component, Z-direction moving parts, high-frequency heating part mounting plate, flux concentrating device, induction coil, insulating materials, temperature sensor, gas-heating apparatus, first pressure reducing valve, first pneumatic ball valve, second pressure reducing valve, second pneumatic ball valve, feeder, metal powder holding vessel, powder feeder, heating mantle and metal powder collection device, the opening of cabinet is equipped with hermatic door.It has many advantages, such as that device fabrication and maintenance cost are low, is suitable for various metal materials.

Description

High-frequency induction heating assists cold spraying deposited metal 3D printer

Technical field

The utility model relates to a kind of high-frequency induction heatings to assist cold spraying deposited metal 3D printer.

Background technique

Cold spraying deposition method for forming parts originates from cold spray technique (Cold Gas DynamicSpray, CGDS), The technology is the middle and later periods the 80's of 20th century, and the academy of sciences of former Soviet Union Siberia branch theory is ground with applied mechanics research institute Personnel A.N.Papyrin and its colleague are studied carefully using discovery when trace particle progress supersonic wind tunnel experiment, when speed is more than some When critical value, trace particle will be deposited on target material surface, they proposed the concept of cold spraying in 1990, and had delivered first Patent of the piece about the paper of cold spraying and in terms of having applied for first term cold spraying.

Specifically, cold spray technique is that high pressure gas (nitrogen, helium, air or mixed gas etc.) is direct or passes through The Laval nozzle that gas heater enters scaling is crossed, supersonic airstream is formed, so that powder particle (5~50 μm) be driven to exist Enter Laval nozzle under low temperature (generally below 600 DEG C), after Laval nozzle accelerates with high speed (300~ 1200m/s) bumped substrate makes particle that strong plastic deformation occur, and kinetic energy is transformed into thermal energy, to form one layer closely Matrix surface is deposited on like the coating that impermeability combines.Particle heating temperature is low when due to cold spraying, and spraying process particle begins Solid-state is kept eventually, and solid granulates pass through plasticity caused by adia-batic shear instability under the conditions of high stress, strain and strain rate Rheology passes through the mechanical processes such as drastic deformation, realizes the deposition in workpiece surface.Therefore, cold spray technique has very much Advantage:(1) chemical component of sedimentary and microstructure are consistent with particulate feed material；(2) sedimentary causes Close, porosity is low；(3) residual stress of sedimentary is lower, predominantly compression；(4) deposition velocity is fast；(5) it can deposit Coat type is various；(6) matrix range of choice is wide, and deposition can be realized on the matrixes such as metal, plastics, ceramics.

Although cold spraying has unique advantage in terms of keeping deposited layer material primitive component, reducing, Since its deposition fully relies on the plastic deformation of sprayed particle, the cold spraying coating of early stage based on low-durometer material, if The higher coating material of hardness is deposited with cold spray technique, just must be using helium as working gas, not only higher cost in this way, And the bond strength of sedimentary is relatively low.A.Hamid, M. Gurjieie in 2004 et al. further study showed that, cold spray Deposition efficiency and bond strength are applied with the temperature of the jet velocity of metal powder granulates, the temperature of metal powder granulates and substrate Increase and increase.Based on this rule, William O ' Neill seminar of univ cambridge uk proposes Supersonic within 2008 Fast laser deposition technique (SLD), by the synchronous introducing cold spraying process of laser beam, using laser irradiation to sprayed particle, base Material or both heats and softens simultaneously, and moment adjusts and improves the mechanical property and Collision deposition state of material, to improve low pressure Thickness, deposition efficiency, consistency and the bond strength of cold spray layer, and then improve the performance of coating.Further, since laser heats To the emollescence of sprayed particle and substrate, the critical deposition velocity of sprayed particle is down to original half, therefore available rates The expensive helium of cheap nitrogen substitution, realizes the deposition of high hardness material, has also widened cold spraying while cost is reduced The range of deposition materials.Cambridge University realizes the deposition of the metal materials such as Ti, Cu, Al using supersonic speed laser deposition technique, And the structural constituent to depositing coating, consistency, wearability etc. are studied, it was demonstrated that the feasibility of the technology and good Application potential.

With the continuous development of cold spray technique, researcher starts the 3D printing system that the technology is used for metal parts It makes.In current 3D printing equipment, printing head is by the intracorporal X of case to component and Y phase component so as to the water in cabinet Translation is dynamic, which is installed to moving parts by guide post, guide sleeve, toothed belt, synchromesh gear, stepper motor, nozzle mounting seat, guide post Seat composition, guide post are mounted on the Mobile base of Y-direction moving parts by the guide post mounting base at both ends；The Y-direction moving parts by Guide post, guide sleeve, toothed belt, synchromesh gear, stepper motor, Y-direction Mobile base, guide post mounting base composition, guide post pass through both ends Guide post mounting base is mounted on cabinet 1；Printing head is mounted on nozzle mounting seat, and printing tray seat is located at Z-direction moving parts On, Z-direction moving parts are made of guide post, guide sleeve, ball screw, nut, stepper motor, guide post mounting base.

Australia SPEE3D company Kennedy and Camilleri is developed based on the metal of cold spray technique within 2017 3D printer, this sets after air is accelerated to the three times of the velocity of sound by nozzle and the powder of injection is deposited on substrate, passes through machine It is logical without support construction and cooling that the movement of device arm can carry out 3D printing in the case where angle of dangling is no more than 45 degree Road.The technology printing shaping speed is very fast, and manufacturing cost is low, the disadvantage is that gas consumption is big, metal powder deposition efficiency is low.

Yao's Jian Hua team of Zhejiang Polytechnical University is with seminar of Cambridge University to supersonic cold gas spray deposition and laser technology phase Be implemented in combination with metal 3D printing technology expansion research, propose within 2012 supersonic speed laser deposition 3D printing technique, using swash Light beam heating carrys out assistant metal powder cold spraying deposition modeling, which has both supersonic speed laser deposition technique and laser melting coating skill Advantage of both art, deposition efficiency is high, temperature is low, sedimentary mechanical performance is higher.It is held high however, the technology needs to use price Expensive laser system, equipment cost is high, thus largely constrains the promotion and application of the technology.

Summary of the invention

One kind is provided the purpose of the utility model is to overcome the deficiencies in the prior art and is remarkably improved the cold spray of metal powder It applies the ability of deposition modeling and device fabrication and maintenance cost is low, the high-frequency induction heating auxiliary suitable for various metal materials is cold Spray deposited metal 3D printer.

It in order to achieve the above object, the utility model is realized in this way, is a kind of cold spray of high-frequency induction heating auxiliary Apply deposited metal 3D printer, it is characterised in that including：

Cabinet, printing tray substrate, printing pallet mounting base, printing pallet, printing head, horizontal plane motion component, Z-direction Moving parts；It wherein is equipped with hermatic door in the opening of the cabinet, the Z-direction moving parts are located in cabinet, the level Face moving parts are set in the chassis, and the printing head is located on horizontal plane motion component to enable printing head in cabinet It is middle to be moved horizontally along X, Y-direction；The printing tray substrate is located on Z-direction moving parts, and the printing pallet mounting base is located at It prints on tray substrate, the printing pallet is removably located in printing disk mounting base, and printing pallet is located at printing head Lower section；

High-frequency heating part mounting plate, more than four flux concentrating devices, induction coil, insulating materials, temperature sensing Device；Wherein the high-frequency heating part mounting plate is set in the chassis, and all flux concentrating devices are located on induction coil simultaneously Even distribution, and all flux concentrating devices are located on high-frequency heating part mounting plate, the printing pallet is located at induction coil In make print pallet be located in the heated perimeter of the induction coil magnetic line of force, the insulating materials is located at induction coil and flux concentrating Between device；The temperature sensor is located in cabinet, and temperature sensor detects the temperature of jet deposition forming area；And

Gas-heating apparatus, the first pressure reducing valve, the first pneumatic ball valve, the second pressure reducing valve, the second pneumatic ball valve, gas supply dress It sets, metal powder holding vessel, powder feeder, heating mantle and metal powder collection device；Wherein the metal powder holding vessel go out Mouth is connected to the powder inlet of powder feeder, and the outlet of the feeder is pneumatic with the import of the first pneumatic ball valve and second respectively The outlet of the inlet communication of ball valve, first pneumatic ball valve is connected to by the first pressure reducing valve with the air inlet of powder feeder, powder feeding The discharge port of device is connected to the feed inlet of the printing head in cabinet, and the outlet of second pneumatic ball valve passes through the second pressure reducing valve Outlet with the inlet communication of gas-heating apparatus, gas-heating apparatus is connected to the air inlet of the printing head in cabinet, institute It states heating mantle to be set on powder feeder to heat powder feeder, the exhaust outlet of the metal powder collection device and cabinet Connection is to collect undeposited metal powder.

In the technical scheme, the horizontal plane motion component includes X to moving parts and Y-direction moving parts, described to beat Print spray head is located at X on moving parts to drive printing head to move horizontally in X direction, and the Y-direction moving parts are located at machine In case, the output end and X of Y-direction moving parts connect that X is driven horizontal along the Y direction to move to moving parts to moving parts It is dynamic.

In the technical scheme, the metal powder collection device include casing, filter bag, sieve tray, powder bucket, bottom cover and Check valve；Wherein the sieve tray is located in casing, and sieve tray and casing inner wall cooperatively form powder filter area, the powder mistake Filter area is connected to the gas outlet of casing, and the filter bag is located in powder filter area to which the gas for flowing through powder filter area obtains Filtering, the air inlet of the casing are connected to by check valve with the exhaust outlet of cabinet, the powder bucket be located at the bottom of casing from And the metal powder on filter bag is collected, the bottom cover is located at the exit of powder bucket removably to close or open powder bucket Outlet.

The utility model compared with prior art the advantages of be：With the conventional cold spraying using resistance heating printing pallet at Type 3D printer is compared, the utility model forming process print pallet and workpiece heating rate be fast, metal powder deposition efficiency more The consumption of height, gas can substantially reduce；Compared with laser heats auxiliary cold spraying molding 3D printer, the utility model structure It is simpler, it safeguards low with use cost；After the completion of printing, stress relief annealing process directly can be carried out to piece workpiece, favorably In the deformation for reducing workpiece, the quality of printing is improved；Leakage field and raising heating can be effectively reduced by the way that flux concentrating device is arranged Efficiency makes heating region concentrate on deposition working region, avoid heating other metal parts in printer so as to cause The increasing of energy consumption and component job insecurity.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the A-A cross-sectional view in Fig. 1；

Fig. 3 is the schematic diagram that the magnetic line of force that the utility model induction coil generates acts on workpiece.

Specific embodiment

Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, as long as technical characteristic involved in the various embodiments of the present invention described below does not constitute punching each other It is prominent to be combined with each other.

In the utility model description, the orientation or positional relationship of the instructions such as term " X to ", " Y-direction " and " Z-direction " be based on Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model rather than requires the utility model must be with Specific orientation construction and operation, therefore should not be understood as limiting the present invention.

It as shown in Figures 1 and 2, is a kind of high-frequency induction heating auxiliary cold spraying deposited metal 3D printer, including：

Cabinet 1, printing tray substrate 2, printing pallet mounting base 3, printing pallet 5, printing head 9, horizontal plane motion group Part, Z-direction moving parts 23；It wherein is equipped with hermatic door 24 in the opening of the cabinet 1, the Z-direction moving parts 23 are located at machine In case 1, the horizontal plane motion component is located in cabinet 1, and the printing head 9 is located on horizontal plane motion component to make to beat Print spray head 9 can move in cabinet 1 along X, Y-direction；The printing tray substrate 2 is located on Z-direction moving parts 23, described to beat Stamp rack disk mounting base 3 is located on printing tray substrate 2, and the printing pallet 5 is removably located in printing disk mounting base 3, is beaten Stamp rack disk 5 is located at the lower section of printing head 9；The printing head 9 is Lavalle de Laval noz(zle)；The printing pallet mounting base 3 Nonmetallic materials such as ceramics with heat resisting temperature not less than 600 DEG C are made, and will not generate whirlpool in the electromagnetic field of high frequency variation Stream；The printing pallet 5 is circular slab, is made of metal material such as Q235 steel or 6063 aluminium alloys etc., upper and lower surfaces are through being ground Parallelism error is machined to no more than 0.05mm, upper surface surface roughness value is no more than Ra1.6 μm；

High-frequency heating part mounting plate 4, six flux concentrating devices 6, induction coil 7, insulating materials 8, temperature sensor 12；Wherein the high-frequency heating part mounting plate 4 is located in cabinet 1, and all flux concentrating devices 6 are located on induction coil 7 simultaneously Be uniformly distributed, the insulating materials 8 is located between flux concentrating device 6 and induction coil 7, thus make flux concentrating device 6 with Induction coil 7 is isolated, and all flux concentrating devices 6 are located on high-frequency heating part mounting plate 4, and the printing pallet 5 is located at sense It answers in coil 7, printing pallet 5 in this way is located in the heated perimeter of 7 magnetic line of force of induction coil；The temperature sensor 12 is located at machine It is infrared temperature sensor in case 1, for detecting the temperature of jet deposition forming area；According to the actual situation, the sense The hollow pure copper tube that coil 7 selects 8~Φ of Φ 12mm and wall thickness is 1~3mm is answered to turn to, copper pipe section is round or rectangle, Interior logical cooling water, the internal diameter of induction coil 7 is greater than printing 5 1~2mm of outer diameter of pallet, highly than printing workpiece maximum forming height High 15~20 mm；According to the actual situation, the flux concentrating device 6 selects 4~12, along the circumferential uniform cloth of printing pallet 5 Set, each flux concentrating device 6 by multi-disc with a thickness of 0.2~0.3 silicon steel sheet stack to reduce eddy-current loss, flux concentrating dress The gap set between 6 and induction coil 7 is 4~6mm, and insulating materials 8 is set in the gap；And

Gas-heating apparatus 13, the first pressure reducing valve 17, the first pneumatic ball valve 18, the second pressure reducing valve 19, the second pneumatic ball valve 20, feeder 21, metal powder holding vessel 16, powder feeder 15, heating mantle 14 and metal powder collection device 22；It is wherein described The outlet of metal powder holding vessel 16 is connected to the powder inlet of powder feeder 15, and the outlet of the feeder 21 is respectively with first The outlet of the inlet communication of the import of pneumatic ball valve 18 and the second pneumatic ball valve 20, first pneumatic ball valve 18 subtracts by first Pressure valve 17 is connected to the air inlet of powder feeder 15, and the discharge port of powder feeder 15 and the feed inlet of the printing head 9 in cabinet 1 connect Logical, the outlet of second pneumatic ball valve 20 passes through the inlet communication of the second pressure reducing valve 19 and gas-heating apparatus 13, and gas adds The outlet of thermal 13 is connected to the air inlet of the printing head 9 in cabinet 1, the heating mantle 14 be set on powder feeder 15 from And powder feeder 15 is heated, the metal powder collection device 22 is connected to collect and do not deposit with the exhaust outlet of cabinet 1 Metal powder；The powder feeder 15 uses rotary drum powder feeder；1~8 bottle of compression work gas can be filled in the feeder 21 Body, each bottle gas are connected with solenoid valve by tracheae, run out of air for one bottle and automatically switch to next bottle of gas；The gas-heating apparatus 13 use electric resistor heating type.

When work, step steady

1. the metal powder for being used for 3D printing is put into 3D printer metal powder holding vessel 16；By bottled compression work Gas is fitted into feeder 21；

2. will print in the printing pallet mounting base 3 that pallet 5 is put into cabinet 1 and lock, printing pallet mounting base 3 is located at On Z-direction moving parts and it is located in cabinet 1, shuts and lock cabinet hermatic door 24, the exhaust outlet and metal powder of cabinet 1 is collected The check valve 226 of device 22 is connected to；

3. calling in the 3D model data for needing to print part, hierarchy slicing processing is carried out to model；

Step 2 pretreatment

1. check valve 226 is opened, 226 pressure value of check valve is set as 0.1~0.15MPa, by second

The pressure value of pressure reducing valve 19 is set as 0.6~2.0 MPa, opens the second pneumatic ball valve 20, in feeder 21 Gas passes sequentially through the second pneumatic ball valve 20, the second pressure reducing valve 19 and gas-heating apparatus 13 and is filled with working gas in cabinet 1；

2. setting 0.6~2.0 MPa for the pressure value of the first pressure reducing valve 17, which is arranged according to metal powder material Depending on expecting type, make the spray deposited of this kind of metal powder granulates of speed of metal powder granulates after the acceleration of printing head 9 0.4~0.8 times of critical speed value controls Z-direction moving parts 23 so as to adjust the Z-direction position of printing pallet 5, at this time printing spray The upper surface distance of first 9 lower end surface to printing pallet 5 is 15~25mm；

3. first the gas in cabinet 1 is discharged 2~3 minutes, makes original oxygen in cabinet 1 after the unlatching of check valve 226 Constantly it is diluted and is discharged；Then the first pneumatic ball valve 18 is opened, the gas in feeder 21 passes sequentially through the first Pneumatic ball Valve 18, the first pressure reducing valve 17 and powder feeder 15 are to make printing head 9 with the past printing pallet 5 of the scanning speed of 20~40 mm/s Surface forming region spray metal powder, spraying rate be the spray deposited critical speed value of this kind of metal powder granulates 0.4~ 0.8 times, so that the forming area to print tray disk 5 carries out shot-peening cleaning；

Step 3 printing

2. opening the power supply of the induction coil 7 in cabinet 1, the magnetic line of force of induction coil 7 is to printing

The surface of workpiece of pallet 5 and subsequent layer by layer deposition on the surface thereof is heated, supply voltage 380V, frequency Rate is 100~300kHz, and the temperature of jet deposition forming area is detected with temperature sensor 12, when temperature reaches interface preheating temperature Stop heating when spending the upper limit, that is, Tp+15 DEG C, then starts heating when temperature is lower than preheating temperature lower limit, that is, Tp-15 DEG C, the Tp= （0.4-0.7）Tm, Tm are the fusing point of the metal, the interface preheating temperature upper limit≤600 DEG C；

3. gas is added to 350~600 DEG C of heat by dynamic gas-heating apparatus 13, heating device；Starting is sent

Metal powder in powder feeder 15 is heated to 350~600 DEG C by the heating mantle 14 on powder device 15, heating mantle 14；

4. the pressure of the first pressure reducing valve 17 and the second pressure reducing valve 19 is set as 1.0~3.5 MPa, and first

The pressure value of pressure reducing valve 17 and the second pressure reducing valve 19 is arranged depending on metal powder material type, makes metal powder Speed of the particle after printing head accelerates is greater than its spray deposited critical speed value；Scanning speed is 20~40 mm/s, presses and divides Layer data successively prints part, every to have printed one layer, printing pallet 5 decline a layer away from, thus make in print procedure spraying away from From remaining unchanged；

Step 4 post-processing

1. after the completion of workpiece printing, closing the first pneumatic ball valve 18, the second pneumatic ball valve 20, gas-heating apparatus 13, adding Hot jacket 14；

2. by induction coil 7 on-off electricity, as shown in figure 3, adjusting the workpiece temperature printed on pallet 5 to workpiece The stress relief annealing temperature of metal material stops heating after heat preservation 1~2 hour, after workpiece is cooled to 200~250 DEG C, then It is taken out together with printing pallet 5；By wire cutting, workpiece and printing pallet 5 are separated, beaten to obtain required metal 3D Printed document；

3. clearing up the metal powder in metal powder collection device 22.

Described to be used to spray deposited metal powder granulates require partial size to be 5~50 μm, shape is spherical；The gas supply dress The gas for setting 21 is nitrogen or helium.

In the present embodiment, the horizontal plane motion component includes X to moving parts 10 and Y-direction moving parts 11, described Printing head 9 is located at X on moving parts 10 to driving printing head 9 to move horizontally in X direction, the Y-direction moving parts 11 are located in cabinet 1, and the output end and X of Y-direction moving parts 11 connect to drive X to 10 energy of moving parts to moving parts 10 It moves horizontally along the Y direction.

In the present embodiment, the metal powder collection device 22 includes casing 221, filter bag 222, sieve tray 223, powder Bucket 224, bottom cover 225 and check valve 226；Wherein the sieve tray 223 is located in casing 221, in sieve tray 223 and casing 221 Wall cooperatively forms powder filter area, and the powder filter area is connected to the gas outlet of casing 221, and the filter bag 222 is located at powder Gas in filtering area to flow through powder filter area is filtered, the air inlet of the casing 221 by check valve 226 with The exhaust outlet of cabinet 1 is connected to, and the powder bucket 224 is located at the bottom of casing 221 and falls lower metal powder on filter bag 222 to collect End, the bottom cover 225 are located at the exit of powder bucket 224 removably to close or open the outlet of powder bucket 224.Work When, the gas with metal powder enters in casing 221 after the discharge of cabinet 1 through check valve 226, then through after sieve tray 223 Into powder filter area, there is filter bag 222 in powder filter area, the metal powder in gas is obstructed by filter bag 222, in filter bag 222 Surface forms metal powder layer, when filter bag 222 is acted on by mechanical oscillation, is deposited on the metallic dust on 222 surface of filter bag just It falls in powder bucket 224, periodically opening bottom cover 225 can be cleared up, and working gas after filtering is recyclable or straight Run in out.

The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to institute The embodiment of description.For the ordinary skill in the art, the principles of the present invention and objective are not being departed from In the case of to these embodiments carry out it is a variety of variation, modification, replacement and deformation still fall in the protection scope of the utility model It is interior.

Claims (3)

1. a kind of high-frequency induction heating assists cold spraying deposited metal 3D printer, it is characterised in that including：

Cabinet（1）, printing tray substrate（2）, printing pallet mounting base（3）, printing pallet（5）, printing head（9）, horizontal plane Moving parts, Z-direction moving parts（23）；Wherein in the cabinet（1）Opening be equipped with hermatic door（24）, the horizontal plane fortune Dynamic component and Z-direction moving parts（23）It is each provided at cabinet（1）It is interior, the printing head（9）Be located on horizontal plane motion component from And make printing head（9）It can be in cabinet（1）It is middle to be moved horizontally along X, Y-direction；The printing tray substrate（2）It is located at Z-direction fortune Dynamic component（23）On, the printing pallet mounting base（3）It is located at printing tray substrate（2）On, the printing pallet（5）Detachably Be located at printing pallet mounting base（3）On, print pallet（5）Positioned at printing head（9）Lower section；

High-frequency heating part mounting plate（4）, more than four flux concentrating devices（6）, induction coil（7）, insulating materials（8）, Temperature sensor（12）；The wherein high-frequency heating part mounting plate（4）It is located at cabinet（1）In, all flux concentrating devices （6）It is located at induction coil（7）It goes up and is uniformly distributed, and all flux concentrating devices（6）It is located at high-frequency heating part mounting plate （4）On, the printing pallet（5）Positioned at induction coil（7）In make print pallet（5）Positioned at induction coil（7）The magnetic line of force adds In heat rating, the insulating materials（8）It is located at induction coil（7）With flux concentrating device（6）Between；The temperature sensor （12）Positioned at cabinet（1）It is interior, temperature sensor（12）Detect the temperature of jet deposition forming area；And

Gas-heating apparatus（13）, the first pressure reducing valve（17）, the first pneumatic ball valve（18）, the second pressure reducing valve（19）, it is second pneumatic Ball valve（20）, feeder（21）, metal powder holding vessel（16）, powder feeder（15）, heating mantle（14）And metal powder is collected Device（22）；The wherein metal powder holding vessel（16）Outlet and powder feeder（15）Powder inlet connection, the gas supply Device（21）Outlet respectively with the first pneumatic ball valve（18）Import and the second pneumatic ball valve（20）Inlet communication, described One pneumatic ball valve（18）Outlet pass through the first pressure reducing valve（17）With powder feeder（15）Air inlet connection, powder feeder（15）Go out Material mouth and cabinet（1）Interior printing head（9）Feed inlet connection, second pneumatic ball valve（20）Outlet subtract by second Pressure valve（19）With gas-heating apparatus（13）Inlet communication, gas-heating apparatus（13）Outlet and cabinet（1）Interior printing Spray head（9）Air inlet connection, the heating mantle（14）It is set in powder feeder（15）Above to powder feeder（15）It is heated, The metal powder collection device（22）With cabinet（1）Exhaust outlet connection to collecting undeposited metal powder.

2. high-frequency induction heating according to claim 1 assists cold spraying deposited metal 3D printer, it is characterised in that institute Stating horizontal plane motion component includes X to moving parts（10）And Y-direction moving parts（11）；The printing head（9）X is located to fortune Dynamic component（10）Above to drive printing head（9）It moves horizontally in X direction, the Y-direction moving parts（11）It is located at cabinet（1） It is interior, Y-direction moving parts（11）Output end and X to moving parts（10）Connection is to drive X to moving parts（10）It can be along Y Direction moves horizontally.

3. high-frequency induction heating according to claim 1 assists cold spraying deposited metal 3D printer, it is characterised in that institute State metal powder collection device（22）Including casing（221）, filter bag（222）, sieve tray（223）, powder bucket（224）, bottom cover （225）And check valve（226）；The wherein sieve tray（223）It is located at casing（221）In, sieve tray（223）With casing（221） Inner wall cooperatively forms powder filter area, the powder filter area and casing（221）Gas outlet connection, the filter bag（222）If To which the gas for flowing through powder filter area is filtered in powder filter area, the casing（221）Air inlet pass through list To valve（226）With cabinet（1）Exhaust outlet connection, the powder bucket（224）It is located at casing（221）Bottom to collecting filter bag （222）On metal powder, the bottom cover（225）Removably it is located at powder bucket（224）Exit to closing or open Powder bucket（224）Outlet.