Laser wire powder synergistic and electric arc hybrid additive manufacturing device and method

Abstract

The application provides a laser wire powder synergistic and electric arc composite additive manufacturing device and method, which comprises a plurality of printing areas, connecting areas and printing modules, wherein the plurality of printing areas are continuously arranged, and each connecting area is arranged between two adjacent printing areas, the connecting area has a plurality of first connecting areas and second connecting areas, and the corresponding first connecting area and second connecting area are arranged in an overlapping manner; each printing module is arranged opposite to the printing area, the printing module moves along a preset printing path and is printed to form a metal component, and the preset printing path passes through the printing area and the first connecting area or the printing area and the second connecting area, so that the metal structure is formed at one time, the additive connection and the weak performance area are avoided, the connection strength of the metal component is enhanced, and the forming efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing technology, in particular to a laser wire powder synergistic and electric arc composite additive manufacturing device and method. BACKGROUND

[0002] The development level of aerospace, ship and ocean fields is an important measure of national comprehensive strength, and componentization and integration are an inevitable trend of its development. Additive manufacturing is an important technology that is expected to promote its realization. However, traditional additive manufacturing technology gradually shows fatigue in the face of increasingly complex components, and low efficiency and difficulty in one-time forming are key difficulties that need to be broken through.

[0003] The laser powder feeding additive manufacturing device and powder flow control method with publication number CN110052606A, wherein the laser powder feeding additive manufacturing device includes a powder feeding nozzle for spraying a powder flow, a powder feeder connected with the powder feeding nozzle, a powder flow controller and a monitoring mechanism. The monitoring mechanism includes a light source and a light intensity sensor oppositely arranged on both sides of the powder flow. The light source emits a light beam to the powder flow, and the light intensity sensor is electrically connected with the powder flow controller for receiving the light beam passing through the powder flow and converting the light signal into an electrical signal and sending the electrical signal to the powder flow controller. The powder flow controller is electrically connected with the powder feeder for receiving the electrical signal and adjusting the powder feeding speed of the powder feeder according to the electrical signal. The change of the voltage signal reflects the change of the powder feeding speed, and the powder flow controller adjusts and controls the powder feeding speed of the powder feeder according to the change of the voltage signal, thereby realizing long-time monitoring of the powder flow and adjusting and controlling the powder feeding speed of the powder feeder.

[0004] At present, when the additive manufacturing process forms a metal component greater than 3 meters, it needs to be printed multiple times and then connected to form, which not only takes a long time and has low forming efficiency, but also causes the emergence of weak performance areas prone to failure, significantly reducing the structural strength and service ability of the metal component. SUMMARY

[0005] Therefore, the present application provides a laser wire powder synergistic and electric arc composite additive manufacturing device and method, which realizes one-time forming of metal structural parts, avoids the emergence of additive connection and weak performance areas, enhances the connection strength of the metal component, and improves the forming efficiency.

[0006] The technical scheme of the present application is as follows: In a first aspect, the present application provides a laser wire powder synergistic and electric arc composite additive manufacturing device, comprising a plurality of printing areas, a connection area and a printing module, wherein,

[0007] The plurality of printing areas are arranged continuously, and each connection area is arranged between two adjacent printing areas. The connection area has a plurality of first connection areas and second connection areas, and the corresponding first connection area and second connection area are arranged in an overlapping manner.

[0008] Each printing module is oppositely arranged with the printing area, and the printing module moves along a preset printing path and prints to form the metal component, and the preset printing path passes through the printing area and the first connecting area or the printing area and the second connecting area.

[0009] On the basis of the above technical scheme, preferably, the number of the printing areas is two, and the two printing modules respectively move and print from the boundary starting positions of the corresponding printing areas towards the connecting area side, and the boundary starting positions of the two printing modules are symmetrically arranged with the central axis of the connecting area.

[0010] On the basis of the above technical scheme, preferably, the number of the printing areas is at least three, the printing module at the head end moves and prints from the boundary starting position of the corresponding printing area towards the adjacent connecting area side, and the two printing modules adjacent to the head end respectively move and print from the central axis of the connecting area between them as the starting position towards the adjacent two sides of the connecting area side.

[0011] On the basis of the above technical scheme, preferably, the printing path of each printing module includes a plurality of bending segments, the plurality of bending segments are connected in a head-to-tail manner, and the corners of each bending segment are arranged at right angles.

[0012] On the basis of the above technical scheme, preferably, the printing module moves to the connecting area along the transverse direction of the printing area, and moves in the longitudinal direction of the connecting area by a connecting area distance to form a bending segment.

[0013] On the basis of the above technical scheme, preferably, it further includes an auxiliary module, wherein the auxiliary module is arranged on one side of the printing module and is used for remelting and spreading the overlapping area of the first connecting area and the second connecting area.

[0014] On the basis of the above technical scheme, preferably, the longitudinal width of the connecting area is equal to that of the printing area, and the end faces of the connecting area and the printing area are arranged in the same plane.

[0015] On the basis of the above technical scheme, preferably, the printing module includes a laser coaxial wire powder synchronous main printing head, a side-axis multi-wire synchronous auxiliary printing head and a side-axis multi-path powder feeding auxiliary printing head, wherein the laser coaxial wire powder synchronous main printing head is oppositely arranged with the printing area and is used for synchronously feeding the laser beam and the wire powder, the side-axis multi-wire synchronous auxiliary printing head is arranged on one side of the laser coaxial wire powder synchronous main printing head and is used for feeding a plurality of wire materials, and the side-axis multi-path powder feeding auxiliary printing head is arranged on one side of the laser coaxial wire powder synchronous main printing head and is symmetrically arranged with the side-axis multi-wire synchronous auxiliary printing head and is used for feeding the powder material.

[0016] In a second aspect, the present application also provides a wire-powder composite laser additive manufacturing method of a metal component, which uses a laser wire-powder cooperative and electric arc composite additive manufacturing device, and the method comprises the following steps:

[0017] S1, cleaning, drying and filling raw materials, the raw materials including a wire with a diameter of 1.2-3.0 mm and a powder with a particle size of 50-300 m;

[0018] S2, placing a substrate into a printing cabin, washing the cabin, and making the cabin meet the following conditions: a forming cabin pressure of 1-10 mbar, a water content of 50-100 ppm, and an oxygen content of 500-1000 ppm;

[0019] S3, setting printing parameters of each printing module;

[0020] If the number of printing areas is two, then the two printing modules move towards the connecting area side along the starting positions of the boundaries of their respective printing areas for printing forming, the two printing modules have a time difference of 1-5 s when moving towards each other, and the printing modules move one step after printing into the connecting area and then move transversely for printing;

[0021] If the number of printing areas is at least three, then the printing module at the head end moves towards the connecting area side along the starting position of the boundary of its corresponding printing area for printing forming, and the connecting area between the two printing modules adjacent to the head end has a middle axis as the starting position to move towards the connecting area sides on the two adjacent sides for printing forming;

[0022] S4, the auxiliary module spreads the overlapping area between the first connecting area and the second connecting area by remelting, so that the connecting area is level with the printing area;

[0023] S5, after the printing path of each printing module moves to the end point, a metal component is formed, and the metal component is cooled and then sampled after the cabin is opened.

[0024] Preferably, in the above technical solution, the laser power of the printing parameters is 4000-30000 W, the powder feeding speed is 20-60 cm3 / min, the wire feeding speed is 1-10 m / min, the spot diameter is 0.8-2 mm, the defocusing amount is 80-100 mm, the overlap rate is 40-60%, the lifting amount is 2-5 mm, the hot wire current is 10-70 A, the auxiliary laser is 300-1500 W, and the deposition current is 50-300 A.

[0025] The laser wire-powder cooperative and electric arc composite additive manufacturing device and method of the present application have the following beneficial effects compared with the prior art:

[0026] (1) By setting a plurality of continuously arranged printing areas, the manufacturing process can be continuously carried out, and each printing module is relatively independent, does not interfere with each other, but cooperates, and the connecting area is arranged between the adjacent two printing areas, and a plurality of overlapping first connecting areas and second connecting areas are arranged therein, which ensures the continuity and uniformity of the shaped layer during the transition between the printing areas, enhances the strength of the connecting area, realizes the integrated rapid forming of the metal structural part, and improves the efficiency and quality of the metal component printing;

[0027] (2) By printing according to the corresponding printing path according to the number of printing areas, the adjacent two printing paths are symmetrical along the central axis of the connecting area, which effectively reduces the performance difference caused by inconsistent printing paths, thereby improving the uniformity and consistency of the entire metal component;

[0028] (3) By remelting and spreading the overlapping thickened part through the auxiliary module, the overlapping part is finally leveled with the rest of the area, which ensures the continuity and smoothness of the printing path, and improves the printing quality and the stability of the structure at the connecting part;

[0029] (4) By the cooperation of the laser coaxial wire-powder same feeding main printing head, the auxiliary printing head of the side shaft multi-wire same feeding and the auxiliary printing head of the side shaft multi-path powder feeding, the wire-powder same feeding, coaxial multi-wire same feeding, side shaft multi-wire same feeding, coaxial multi-path powder feeding, side shaft multi-path powder feeding and other feeding modes can be coupled and quickly scanned to quickly fill the formed material, and the multiple feeding modes can be dynamically started and paused according to the actual forming needs, and the quick scanning can ensure the rapid forming of the part. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0031] Figure 1 It is a top view schematic diagram of the structure of the laser wire-powder cooperative and electric arc composite additive manufacturing device of the present application;

[0032] Figure 2 It is a front view schematic diagram of the structure of the laser wire-powder cooperative and electric arc composite additive manufacturing device of the present application;

[0033] Figure 3 It is a printing path schematic diagram of the embodiment one of the laser wire-powder cooperative and electric arc composite additive manufacturing device and method of the present application;

[0034] Figure 4 This is a schematic diagram of the printing path in Embodiment 2 of the laser-filament-powder synergistic and arc-composite additive manufacturing apparatus and method of the present invention;

[0035] Figure 5 This is a flowchart of the laser wire powder synergy and electric arc composite additive manufacturing method of the present invention. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] Existing additive printing technologies for metal components have the following problems:

[0038] Low process efficiency: Currently, the metal deposition efficiency of laser additive manufacturing is only 230 cm⁻¹. 3 The time required to form structural parts larger than 3m is approximately 40 days, with a production time of around 1 hour;

[0039] One-time forming is difficult: Existing additive manufacturing processes for metal components are often limited by efficiency and adopt a method of split printing and assembly. This introduces additive connection areas into the overall component, which are usually weak areas in performance and high-risk areas for component failure.

[0040] like Figures 1-5 As shown, a laser-filament-powder synergistic and arc-coupled additive manufacturing apparatus of the present invention includes multiple printing areas 1, connecting areas 2, and printing modules 3. The multiple printing areas 1 are arranged continuously, and each connecting area 2 is disposed between two adjacent printing areas 1. Each connecting area 2 has a plurality of first connecting areas 21 and second connecting areas 22, and the corresponding first connecting areas 21 and second connecting areas 22 are arranged in an overlapping manner. Each printing module 3 is arranged opposite to the printing area 1. The printing module 3 moves along a preset printing path and prints out metal components. The preset printing path passes through the printing area 1 and the first connecting area 21 or the printing area 1 and the second connecting area 22.

[0041] It should be noted that each printing area 1 is the main working area where metal powder or metal wire is deposited and melted by laser to form a metal component. This device contains multiple continuously arranged printing areas 1, which allows the manufacturing process to be carried out continuously without frequent shutdowns for adjustments, greatly improving production efficiency. Taking a typical 3m-level aerospace titanium alloy component as an example, traditional additive manufacturing usually only produces a 200cm section. 3 / h (titanium alloy deposition efficiency: 1 kg / h) deposition efficiency, while the method can achieve at least 3600 cm 3 / h (titanium alloy deposition efficiency: 1 kg / h) deposition efficiency, while the method can achieve at least 3600 cm

[0042] Embodiment 1

[0043] The number of the printing areas 1 in this embodiment is two, and the two printing modules 3 are respectively moved to print and form along the boundary starting positions of the corresponding printing areas 1 towards the connection area 2. The boundary starting positions of the two printing modules 3 are symmetrically arranged with the central axis of the connection area 2.

[0044] It should be noted that the number of the printing areas 1 in this embodiment is two, and the printing starting positions of the printing modules 3 are located at the edge corner positions of the corresponding printing areas 1. The initial positions of the two printing modules 3 are on the same horizontal straight line, and the two printing modules 3 move towards each other during the printing process. The two printing modules 3 are respectively moved to print and form the corresponding first connection area 21 and second connection area 22 from the respective boundary starting positions. The overlapping part between the first connection area 21 and the second connection area 22 forms a lap joint area to ensure the strength and continuity of the connection area. With the printing of the reciprocating fold line type path, the metal powder or wire gradually melts and deposits on the substrate under the irradiation of the laser to form the required metal member.

[0045] According to this embodiment, since the boundary starting positions of the two printing modules 3 are symmetrically arranged with the central axis of the connection area 2, the printing paths of the two printing modules 3 in the connection area 2 are also symmetrically arranged, and the printing speeds and parameters of the two printing modules 3 are the same, thereby effectively reducing the performance difference caused by inconsistent printing paths, and improving the uniformity and consistency of the entire metal member.

[0046] Embodiment 2

[0047] The number of the printing areas 1 in this embodiment is at least three. The printing module 3 located at the first end is moved to print and form along the boundary starting position of the corresponding printing area 1 towards the adjacent connection area 2. The two printing modules 3 located away from the first end are respectively moved to print and form towards the adjacent two connection areas 2 with the central axis of the connection area 2 between them as the starting position.

[0048] Specifically, the number of the printing areas 1 in this embodiment is three, and the three printing areas 1 are sequentially divided into an A printing area, a B printing area and a C printing area. The printing initial position of the printing module 3 located at the head end along the boundary of the A printing area moves towards the connecting area 2 arranged between the A printing area and the B printing area. The printing initial positions of the two printing modules 3 corresponding to the B printing area and the C printing area are located at the central axis of the connecting area 2 arranged between the B printing area and the C printing area. The moving direction of the printing module 3 corresponding to the B printing area is away from the moving direction of the printing module 3 corresponding to the C printing area. The moving direction of the printing module 3 corresponding to the B printing area is opposite to the moving direction of the printing module 3 corresponding to the A printing area. The three printing modules 3 are arranged on the same straight line in the horizontal direction. The moving distance of the printing module 3 located at the head end from the printing initial position of the boundary of the A printing area to the central axis of the connecting area 2 arranged between the B printing area and the C printing area is the same as the distance from the central axis of the connecting area 2 arranged between the B printing area and the C printing area to the central axis of the connecting area 2 arranged between the A printing area and the B printing area and the distance from the central axis of the connecting area 2 arranged between the B printing area and the C printing area to the boundary of the C printing area. That is, the printing module 3 corresponding to the A printing area and the printing module 3 corresponding to the B printing area move towards each other and are arranged along the central axis of the connecting area 2 arranged between the A printing area and the B printing area. The printing module 3 corresponding to the B printing area and the printing module 3 corresponding to the C printing area move away from each other and are arranged along the central axis of the connecting area 2 arranged between the B printing area and the C printing area. The printing speed and parameters of the printing modules 3 are the same, which ensures the balance and continuity of the printing process, reduces the errors caused by the long or complex printing path, and improves the uniformity and consistency of the entire metal component.

[0049] According to embodiments 1 and 2, the printing path of each printing module 3 includes a plurality of bending segments 300. The plurality of bending segments 300 are connected end to end, and the corners of each bending segment are arranged at right angles.

[0050] It should be noted that in this embodiment, the printing path of each printing module 3 is designed to include a plurality of bending segments 300, which are connected end to end and collectively form a complete printing track. During the printing process, each printing module 3 moves according to the preset printing path, and the laser beam adjusts its irradiation position and energy output according to the change of the printing path. The laser beam can be deflected by adjusting the deflection of the galvanometer to ensure that the metal powder or wire can be accurately melted and deposited on the substrate. As the printing proceeds, the entire printing area 1, i.e. the connecting area 2, is scanned and printed until the metal component in the entire printing area 1 is completely formed.

[0051] In addition, the printing module 3 moves to the connecting area 2 along the transverse direction of the printing area 1 and moves along the longitudinal direction of the connecting area 2 by a connecting area distance to form the bending section 300.

[0052] It should be noted that after the printing module 3 prints and moves to the overlapping position of the first connecting area 21 and the second connecting area 22, the printing module 3 is moved by a connecting area distance in the longitudinal direction, and then the printing module 3 is moved towards the boundary of the corresponding printing area 1 for printing, and similarly, the reciprocating printing scans the entire printing area 1 and the connecting area 2 comprehensively.

[0053] The embodiment also includes an auxiliary module 4, wherein the auxiliary module 4 is arranged on one side of the printing module 3 and is used for remelting and spreading the overlapping area of the first connecting area 21 and the second connecting area 22; the longitudinal width of the connecting area 2 is equal to that of the printing area 1, and the end surfaces of the connecting area 2 and the printing area 1 are arranged in the same plane.

[0054] It should be noted that when the printing modules 3 on both sides move to the connecting area 2, they are connected and formed to the first connecting area 21 and the second connecting area 22 of the connecting area 2, respectively, and the first connecting area 21 and the second connecting area 22 have overlapping parts, thereby forming a partially overlapped thickened part during printing, and at the same time, the auxiliary module 4 remelts and spreads the thickened part, so that the overlapping part is finally leveled with the remaining area, ensuring the continuity and smoothness of the printing path, and improving the printing quality and the stability of the structure at the connecting position.

[0055] The printing module 3 in the embodiment includes a laser coaxial wire-powder co-delivery main print head 31, a side-shaft multi-wire co-delivery auxiliary print head 32, and a side-shaft multi-path powder delivery auxiliary print head 33, wherein the laser coaxial wire-powder co-delivery main print head 31 is arranged opposite to the printing area 1 and is used for synchronously delivering a laser beam and wire powder, the side-shaft multi-wire co-delivery auxiliary print head 32 is arranged on one side of the laser coaxial wire-powder co-delivery main print head 31 and is used for delivering multiple wires, and the side-shaft multi-path powder delivery auxiliary print head 33 is arranged on one side of the laser coaxial wire-powder co-delivery main print head 31 and is symmetrically arranged with the side-shaft multi-wire co-delivery auxiliary print head 32 and is used for delivering powder materials.

[0056] It should be noted that the laser coaxial wire-powder co-delivery main print head 31 can only deliver wire, only deliver powder, or simultaneously deliver wire and powder, the side-shaft multi-wire co-delivery auxiliary print head 32 can be arranged for multi-wire co-delivery, and the side-shaft multi-path powder delivery auxiliary print head 33 can be arranged for multi-path powder delivery. The printing module 3 can use wire-powder co-delivery, coaxial multi-wire co-delivery, side-shaft multi-wire co-delivery, coaxial multi-path powder delivery, side-shaft multi-path powder delivery, and other various feeding modes for coupling and rapid scanning to rapidly fill the forming material, and the various feeding modes can be dynamically started and paused according to actual forming needs, and the rapid scanning can ensure the rapid forming of the part.

[0057] In a second aspect, the present application also provides a laser wire-powder synergistic and electric arc composite additive manufacturing method, which is implemented by using the laser wire-powder synergistic and electric arc composite additive manufacturing device described above, and is characterized in that the method comprises the following steps:

[0058] S1, cleaning, drying and filling raw materials, wherein the raw materials comprise wire and powder, the diameter of the wire is 1.2-3.0 mm, and the particle size of the powder is 50-300 m;

[0059] S2, placing a substrate into a printing cabin, and washing the cabin to make the cabin meet the following conditions: the forming cabin pressure is 1-10 mbar, the water content is 50-100 ppm, and the oxygen content is 500-1000 ppm;

[0060] S3, setting the printing parameters of each printing module 3, wherein the laser power of the printing parameters is 4000-30000 W, the powder feeding speed is 20-60 cm / min, the wire feeding speed is 1-10 m / min, the spot diameter is 0.8-2 mm, the defocusing amount is 80-100 mm, the overlap rate is 40-60%, the lifting amount is 2-5 mm, the hot wire current is 10-70 A, the auxiliary laser is 300-1500 W, and the deposition current is 50-300 A. 3

[0061] If the number of the printing areas 1 is two, then the two printing modules 3 move towards the connecting areas 2 along the starting positions of the boundaries of the respective printing areas 1 to print and form, the two printing modules 3 have a time difference of 1-5 s when moving towards each other, and the printing module 3 moves one step after printing into the connecting area 2 and then moves transversely to print;

[0062] If the number of the printing areas 1 is at least three, then the printing module 3 at the first end moves towards the adjacent connecting area 2 along the starting position of the boundary of the corresponding printing area 1 to print and form, and the connecting area 2 between the two printing modules 3 away from the first end has a middle axis as the starting position to move towards the adjacent connecting areas 2 on both sides to print and form;

[0063] S4, the auxiliary module 4 remelts and spreads the overlapping area between the first connecting area 21 and the second connecting area 22, so that the connecting area 2 is at the same height as the printing area 1;

[0064] S5, after the printing path of each printing module 3 moves to the end point, a metal component is formed, and the metal component is cooled and then sampled after the cabin is opened.

[0065] ​It should be noted that firstly, the wire and powder raw materials are cleaned and dried to ensure the quality of the materials, and then the treated raw materials are filled into the corresponding feeding system; the substrate is placed in the printing cabin, the cabin is washed to make the cabin meet the forming cabin pressure of 1-10 mbar, the water content of 50-100 ppm, and the oxygen content of 500-1000 ppm, effectively reducing oxidation and pollution during printing, and improving printing quality; during the printing process, the printing module 3 completes the printing of each part according to the preset printing path, each printing module is relatively independent, does not interfere with each other but cooperates, and completes the one-time forming of the structural part.

[0066] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser wire powder synergistic hybrid additive manufacturing method with arc, the method comprising: The method comprises the following steps: ​ S1, cleaning, drying and filling raw materials, the raw materials including wire with a diameter of 1.2-3.0 mm and powder with a particle size of 50-300 mm; S2, placing the substrate into the printing cabin, washing the cabin, and making the cabin meet the forming cabin pressure of 1-10 mbar, the water content of 50-100 ppm, and the oxygen content of 500-1000 ppm; S3, setting the printing parameters of each printing module (3); the printing path of each printing module (3) includes a plurality of bending sections (300), the plurality of bending sections (300) are connected in a loop, and the corners of each bending section are arranged at right angles; the printing module (3) moves to the connecting area (2) along the transverse direction of the printing area (1) and moves in the longitudinal direction of the connecting area (2) by a connecting area distance to form a bending section (300); the adjacent two printing paths are symmetrical along the central axis of the connecting area (2); if the number of the printing area (1) is two, then the two printing modules (3) move towards the connecting area (2) side from the boundary starting position of each printing area (1) respectively to print and form, the two printing modules (3) have a time difference of 1-5 s when moving towards each other, and the printing module (3) moves by a step after moving into the connecting area (2) and then moves transversely to print; if the number of the printing area (1) is at least three, then the printing module (3) at the first end moves towards the connecting area (2) side from the boundary starting position of the corresponding printing area (1) to print and form, and the central axis of the connecting area (2) between the two printing modules (3) away from the first end is the starting position, which moves towards the connecting area (2) side on the two adjacent sides to print and form; S4, the auxiliary module (4) remelts and spreads the overlapping area of the first connecting area (21) and the second connecting area (22) to make the connecting area (2) and the printing area (1) have the same height; S5, after the printing path of each printing module (3) moves to the end point, a metal component is formed, and the metal component is cooled and then taken out for sampling.

2. The laser wire powder synergistic hybrid additive manufacturing method of claim 1, wherein: The laser power of the printing parameter is 4000-30000 W; the powder feeding speed is 20-60 cm 3 / min; the wire feeding speed is 1-10 m / min; the spot diameter is 0.8-2 mm; the defocusing amount is 80-100 mm; the overlap rate is 40-60%; the lifting amount is 2-5 mm; the hot wire current is 10-70 A; the auxiliary laser is 300-1500 W, and the deposition current is 50-300 A.

3. A laser wire-powder synergized with arc hybrid additive manufacturing device, which is implemented by using the laser wire-powder synergized with arc hybrid additive manufacturing method as claimed in claim 1, characterized in that, The method comprises a plurality of printing areas (1), connecting areas (2) and printing modules (3), wherein the plurality of printing areas (1) are arranged continuously, and each connecting area (2) is arranged between two adjacent printing areas (1); the connecting area (2) has a plurality of first connecting areas (21) and second connecting areas (22), and the corresponding first connecting area (21) and the second connecting area (22) are arranged in an overlapping manner; each printing module (3) is arranged opposite to the printing area (1), and the printing module (3) moves along a preset printing path to print and form a metal component; the preset printing path passes through the printing area (1) and the first connecting area (21) or the printing area (1) and the second connecting area (22).

4. The laser wire powder synergic and electric arc composite additive manufacturing device of claim 3, wherein: The number of the printing area (1) is two, and the two printing modules (3) move towards the connecting area (2) side from the boundary starting position of each corresponding printing area (1) to print and form, and the boundary starting positions of the two printing modules (3) are symmetrically arranged with the central axis of the connecting area (2).

5. The laser wire powder synergic and electric arc hybrid additive manufacturing device of claim 4, wherein: The number of the printing areas (1) is at least three, the printing module (3) at the head end starts to move along the boundary of the corresponding printing area (1) to the side of the adjacent connection area (2) for printing forming, and the two printing modules (3) adjacent to the head end start to move respectively to the side of the adjacent connection area (2) with the middle axis of the connection area (2) as the starting position for printing forming.

6. The laser-wire-powder synergized with electric arc hybrid additive manufacturing apparatus of claim 5, wherein: The auxiliary module (4) is further included, wherein the auxiliary module (4) is arranged on one side of the printing module (3), the heat source type of the auxiliary module (4) includes a high-energy beam heat source such as a laser and an electric arc, and the main functions include: shaping, i.e. remelting and spreading of the overlapping area of the first connection area (21) and the second connection area (22) or shaping of the main forming part; forming, i.e. providing energy as an auxiliary off-axis heat source to directly melt and form the wire / powder.

7. The laser-wire-powder synergized with electric arc hybrid additive manufacturing apparatus of claim 6, wherein: The longitudinal width of the connection area (2) is equal to that of the printing area (1), and the end face of the connection area (2) and the printing area (1) is arranged in the same plane.

8. The laser-wire-powder synergized with electric arc hybrid additive manufacturing device of claim 7, wherein: The printing module (3) includes a laser coaxial wire and powder co-delivery main printing head (31), an off-axis multi-wire co-delivery auxiliary printing head (32) and an off-axis multi-path powder delivery auxiliary printing head (33), wherein the laser coaxial wire and powder co-delivery main printing head (31) is arranged opposite to the printing area (1) for synchronously delivering the laser beam and the wire and powder, the off-axis multi-wire co-delivery auxiliary printing head (32) is arranged on one side of the laser coaxial wire and powder co-delivery main printing head (31) for delivering multiple wires, and the off-axis multi-path powder delivery auxiliary printing head (33) is arranged on one side of the laser coaxial wire and powder co-delivery main printing head (31) and symmetrically arranged with the off-axis multi-wire co-delivery auxiliary printing head (32) for delivering powder materials.

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