CN115430846A - Consumable electrode argon arc welding 3D printing material increase device and method - Google Patents

Consumable electrode argon arc welding 3D printing material increase device and method Download PDF

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Publication number
CN115430846A
CN115430846A CN202211207988.XA CN202211207988A CN115430846A CN 115430846 A CN115430846 A CN 115430846A CN 202211207988 A CN202211207988 A CN 202211207988A CN 115430846 A CN115430846 A CN 115430846A
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CN
China
Prior art keywords
welding
argon arc
welding gun
metal
power supply
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CN202211207988.XA
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Chinese (zh)
Inventor
刘骁
王晨阳
朱莉莉
李小平
王洪金
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Jiangsu University of Technology
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Jiangsu University of Technology
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Priority to CN202211207988.XA priority Critical patent/CN115430846A/en
Publication of CN115430846A publication Critical patent/CN115430846A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/30Platforms or substrates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30Process control
    • B22F10/32Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

Abstract

The invention discloses a consumable electrode argon arc welding 3D printing additive device and method; the device comprises an argon arc welding power supply, a welding gun, a metal liquid drop atomizing injector and a high-pressure gas supply system; welding wires are arranged in the welding guns, the welding guns are connected with the positive electrode and the negative electrode of the argon arc welding power supply, and an included angle is formed between the welding guns; the atomizing injector is arranged below the welding gun and is used for receiving molten metal formed after the welding wire is melted; the high-pressure gas supply system is arranged on the atomizing injector and continuously provides high-pressure gas for the metal liquid droplet atomizing injector. The method comprises the following steps: s1, respectively connecting a welding gun with the positive electrode and the negative electrode of the argon arc welding power supply; s2, switching on an argon arc welding power supply to melt the welding wire; s3, synchronously feeding a welding wire in the welding gun, continuously melting the welding wire to form molten metal, and enabling the molten metal to fall into a metal liquid droplet atomizing ejector below the molten metal; s4, continuously conveying high-pressure gas to the metal liquid droplet atomizing ejector to form an atomizing cone; and S5, the molten metal passes through the atomizing cone and then is deposited on the base material in a semi-solid state, so that the required metal component is formed.

Description

Consumable electrode argon arc welding 3D printing material increase device and method
Technical Field
The invention relates to the technical field of 3D printing, in particular to a consumable electrode argon arc welding 3D printing material increasing device and method.
Background
In recent years, more and more attention has been paid to a Wire and Arc Additive Manufacturing (WAAM) technology, which is developed mainly based on welding technologies such as TIG, MIG, SAW and the like, in which an Arc is used as an energy-carrying beam to Manufacture a metal solid member in a layer-by-layer overlaying manner, and a formed part is composed of a full-weld joint, has uniform chemical components, high density, good metallurgical bonding performance and good mechanical performance. The open forming environment has no limit to the size of a formed part, the forming speed can reach kilogram per hour, but the surface fluctuation of parts manufactured by the electric arc additive manufacturing is large, and the surface quality of the formed part is low. Therefore, the additive repair technology using the electric arc as a heat source is a low-cost and rapid additive repair technology with great potential.
However, the existing arc 3D printing additive method generally has the following problems: (1) The high-temperature liquid metal drops in a base material molten pool for transition, and the existence of the molten pool in the base material can generate serious heat influence on a base body and a solidified area; (2) In the traditional electric arc cladding material increase process, a base material must be connected with one pole of a power supply, so that a large current must pass through the base material in the working process, and the medium-power and low-power electrical components in the base material can be burnt; (3) The mechanical properties of the arc additive forming component are often not as good as those of the traditional forming method; (4) Need supporting smelting furnace and metal Brassica juncea ingot to obtain metal liquid, the structure is heavy, and the application place is inflexible. The above problems are also important factors limiting the electric arc cladding additive manufacturing nowadays.
Disclosure of Invention
The invention aims to: the scheme of the invention has the advantages of simple device structure design, less process parameters, safe and reliable work, flexible and mobile production places, unaffected base materials, excellent tissue performance of an additive forming part and the like.
The invention is realized by the following technical scheme:
the utility model provides a can melt utmost point argon arc and weld 3D and print vibration material disk device which characterized in that, the device includes: the device comprises an argon arc welding power supply, a welding gun, a metal liquid droplet atomizing injector and a high-pressure gas supply system; welding wires are arranged in the welding guns, the welding guns are respectively connected with the positive electrode and the negative electrode of the argon arc welding power supply, and an included angle alpha is formed between the welding guns; the metal liquid droplet atomizing injector is arranged below the welding gun and is used for receiving molten metal formed after the welding wire is melted; the high-pressure gas supply system is arranged on the metal liquid droplet atomizing ejector and used for continuously providing high-pressure gas for the metal liquid droplet atomizing ejector to eject the metal liquid in the metal liquid droplet atomizing ejector at a high speed.
Further, a consumable electrode argon arc welds 3D and prints material increase device: the argon arc welding power supply is set as an alternating current power supply.
In order to ensure that welding wires in the first welding gun and the second welding gun can be synchronously melted, the argon arc welding power supply needs to be an alternating current power supply.
Further, a consumable electrode argon arc welds 3D and prints material increase device: the welding gun comprises: a first welding gun and a second welding gun; the first welding gun and the second welding gun are respectively and electrically connected with the anode and the cathode of the argon arc welding power supply; the welding wires are arranged in the first welding gun and the second welding gun.
Further, a consumable electrode argon arc welds 3D and prints material increase device: the first welding gun and the second welding gun are symmetrically arranged, and an included angle alpha between the first welding gun and the second welding gun is not more than 150 degrees. Specifically, in order to ensure that metal droplets can be smoothly dripped after welding wires in the first welding gun and the second welding gun are synchronously melted, the first welding gun and the second welding gun are symmetrically installed, and an installation included angle alpha between the first welding gun and the second welding gun is less than or equal to 150 degrees.
Further, a can melt utmost point argon arc and weld 3D and print vibration material disk device: the inlet axis of the metal droplet atomizing injector coincides with the mounting center line of the first welding gun and the second welding gun.
Further, a consumable electrode argon arc welds 3D and prints material increase device: the high-pressure gas is inert gas.
A consumable electrode argon arc welding 3D printing material increase method is characterized in that the method adopts the consumable electrode argon arc welding 3D printing material increase device for processing, and the method comprises the following specific steps:
s1, electrically connecting the welding gun with a positive electrode and a negative electrode of an argon arc welding power supply respectively; loading the welding wire into the welding gun;
s2, switching on the argon arc welding power supply, and melting the welding wire by using a welding gun to form molten metal;
s3, synchronously feeding the welding wire in the welding gun, continuously melting the welding wire to form molten metal, and enabling the molten metal to fall into a lower molten metal atomizing sprayer;
s4, starting a high-pressure gas supply system, continuously conveying high-pressure gas to the metal liquid droplet atomizing ejector, and forming an atomizing cone;
and S5, depositing the molten metal on the base material in a semi-solid state after passing through the atomizing cone, and continuously depositing to form the required metal component.
The invention provides a consumable electrode argon arc welding 3D printing additive device and a consumable electrode argon arc welding 3D printing method using the same; wherein consumable utmost point argon arc welds 3D and prints material increase device includes: the device comprises a consumable electrode argon arc welding alternating current power supply, a welding gun connected with two poles of the power supply, a metal liquid droplet atomizing ejector and a high-pressure inert gas supply system. The welding guns are respectively connected to two poles of an argon arc welding power supply, when two welding wire electrodes are relatively close to each other to a certain distance, a loop is formed and arcing is carried out, welding wires in the two welding guns are melted, a continuous strand of molten metal is formed and falls into the metal droplet atomizing injector below along with synchronous feeding of the welding wires in the two welding guns, at the moment, the high-pressure inert gas supply system continuously conveys high-pressure inert gas to the metal droplet atomizing injector to form an atomizing cone, the molten metal is stacked in a working area in a semi-solid state through the atomizing cone, parts are formed after continuous stacking and cooling through changing of an injection path, and the 3D printing cladding material increasing function is achieved.
By adopting the scheme of the invention, the substrate workpiece does not participate in a power supply loop, the substrate has the outstanding characteristics that the substrate is not influenced by current and only influenced by semi-solid-state stacked metal, and the mechanical properties of the substrate are not changed in all aspects after cladding and material increasing.
The invention has the beneficial effects that:
(1) In the technical scheme of the invention, the first welding gun is connected with the anode of the argon arc welding power supply, the second welding gun is connected with the cathode of the argon arc welding power supply, the substrate does not participate in an argon arc welding current loop, large current cannot pass through the substrate, and small-power electrical components in the substrate cannot be burnt; because the base material does not participate in a current loop, the base material is not melted in the whole cladding and material increasing process, the chemical and physical properties of the base material cannot be changed, and the base material is not influenced by current.
(2) The additive forming piece obtained by the scheme of the invention has fine crystal grains, fine and dense structure, uniform element distribution and excellent mechanical property due to semi-solid injection forming.
(3) The process adopts inert gas protection, and can avoid the defect of metal oxidation.
(4) The scheme of the invention omits the step of melting metal paste ingot by a smelting furnace, and the device has simple and light structure, is easy to transport, and can realize field or field flow operation; the invention is particularly suitable for the repair of precise components, the repair of thin-wall thick parts, and the cladding material increase and repair work of metal components with complex inner cavities or higher requirements on mechanical properties.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a consumable electrode argon arc welding 3D printing material adding device provided by the invention.
The mark in the figure is: the device comprises an argon arc welding power supply 1, welding guns 2, a metal liquid droplet atomizing sprayer 3, a high-pressure gas supply system 4, welding wires 5, an atomizing cone 6, a base material 7, a first welding gun 2-1 and a second welding gun 2-2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example 1
As shown in fig. 1, a consumable electrode argon arc welding 3D printing additive device is characterized in that the device comprises: an argon arc welding power supply 1 (which is an alternating current power supply), a welding gun 2 (the welding gun 2 comprises a first welding gun 2-1 and a second welding gun 2-2 which are symmetrically arranged), a metal liquid droplet atomizing ejector 3 and a high-pressure gas supply system 4; welding wires 5 are arranged in the first welding gun 2-1 and the second welding gun 2-2, the first welding gun 2-1 and the second welding gun 2-2 are respectively connected with the positive pole and the negative pole of the argon arc welding power supply 1, and an included angle alpha (alpha is less than or equal to 150 degrees) is formed between the welding guns 2; the metal droplet atomizing injector 3 is arranged below the first welding gun 2-1 and the second welding gun 2-2, and the metal droplet atomizing injector 3 is used for receiving molten metal formed after the welding wire 5 is melted; the high-pressure gas supply system 4 is arranged on the metal droplet atomizing injector 3, and the high-pressure gas supply system 4 is used for continuously supplying high-pressure inert gas to the metal droplet atomizing injector 3 and jetting out the metal liquid in the metal droplet atomizing injector 3 at a high speed.
Example 2
A consumable electrode argon arc welding 3D printing material increase method is characterized in that the method adopts the consumable electrode argon arc welding 3D printing material increase device provided by embodiment 1 to process, and the method comprises the following specific steps:
s1, electrically connecting the first welding gun 2-1 and the second welding gun 2-2 with the positive electrode and the negative electrode of the argon arc welding power supply 1 respectively, and ensuring that an included angle alpha between the two welding guns is less than or equal to 150 degrees; simultaneously loading the welding wire 5 into the first welding gun 2-1 and the second welding gun 2-2;
s2, the argon arc welding power supply 1 is connected, a current loop is formed among the argon arc welding power supply 1, the first welding gun 2-1 and the second welding gun 2-2, a stable electric arc is formed between the first welding gun 2-1 and the second welding gun 2-2, and welding wires 5 in the two welding guns 2 are melted by the electric arc;
s3, synchronously feeding the welding wire 5 in the first welding gun 2-1 and the second welding gun 2-2, continuously melting the welding wire 5 to form molten metal, and enabling the molten metal to fall into the metal liquid droplet atomizing ejector 3 below;
s4, starting a high-pressure gas supply system 4, continuously conveying high-pressure inert gas to the metal liquid droplet atomizing injector 3, and forming an atomizing cone 6;
and S5, allowing the molten metal to pass through the atomizing cone 6 and then deposit on the base material 7 in a semi-solid state, and continuously depositing for a period of time to form the required metal component.
The invention provides a consumable electrode argon arc welding 3D printing additive device, which comprises: the device comprises a consumable electrode argon arc welding alternating current power supply 1, a welding gun 2 connected with two poles of the power supply, a metal liquid droplet atomizing ejector 3 and a high-pressure inert gas supply system 4. The first welding gun 2-1 and the second welding gun 2-2 are respectively connected to two poles of an argon arc welding power supply 1, when two welding wire poles are relatively close to each other to a certain distance, a current loop is formed and arcing is carried out, welding wires 5 in the two welding guns 2 can be melted, a continuous strand of metal liquid is formed along with synchronous feeding of the welding wires 5 in the two welding guns 2 and falls into a metal liquid droplet atomizing ejector 3 below, at the moment, a high-pressure inert gas supply system 4 continuously conveys high-pressure inert gas to the metal liquid droplet atomizing ejector 3 to form an atomizing cone 6, the metal liquid is stacked in a working area in a semi-solid state through the atomizing cone 6, parts are formed after continuous stacking and cooling through changing an ejection path, and the 3D printing cladding material increasing function is achieved.
The above-mentioned preferred embodiments of the present invention are provided for illustration only and not for the purpose of limiting the invention. Obvious variations or modifications of the present invention are within the scope of the present invention.

Claims (7)

1. The utility model provides a can melt utmost point argon arc and weld 3D and print vibration material disk device which characterized in that, the device includes: the device comprises an argon arc welding power supply (1), a welding gun (2), a metal liquid droplet atomizing ejector (3) and a high-pressure gas supply system (4); welding wires (5) are arranged in the welding guns (2), the welding guns (2) are respectively connected with the positive pole and the negative pole of the argon arc welding power supply (1), and an included angle alpha is formed between the welding guns (2); the metal droplet atomizing injector (3) is arranged below the welding gun (2), and the metal droplet atomizing injector (3) is used for receiving molten metal formed after the welding wire (5) is melted; the high-pressure gas supply system (4) is arranged on the metal liquid droplet atomizing ejector (3), and the high-pressure gas supply system (4) is used for continuously supplying high-pressure gas to the metal liquid droplet atomizing ejector (3) and ejecting the metal liquid in the metal liquid droplet atomizing ejector at a high speed.
2. The consumable electrode argon arc welding 3D printing material increasing device according to claim 1, wherein an argon arc welding power supply (1) is set to be an alternating current power supply.
3. The consumable argon arc welding 3D printing additive device according to claim 1, wherein the welding gun (2) comprises: a first welding torch (2-1) and a second welding torch (2-2); the first welding gun (2-1) and the second welding gun (2-2) are respectively and electrically connected with the anode and the cathode of the argon arc welding power supply (1); the welding wire (5) is arranged in each of the first welding gun (2-1) and the second welding gun (2-2).
4. The consumable electrode argon arc welding 3D printing additive device according to claim 3, wherein the first welding gun (2-1) and the second welding gun (2-2) are symmetrically arranged, and an included angle alpha between the first welding gun (2-1) and the second welding gun (2-2) is not more than 150 degrees.
5. 3D printing additive device according to claim 3, wherein the inlet axis of the metal droplet atomizing injector (3) coincides with the mounting median line of the first welding gun (2-1) and the second welding gun (2-2).
6. The consumable argon arc welding 3D printing additive device according to claim 1, wherein the high-pressure gas is an inert gas.
7. A consumable electrode argon arc welding 3D printing material increase method is characterized in that the method adopts the consumable electrode argon arc welding 3D printing material increase device of any one of claims 1 to 6, and the method comprises the following steps:
s1, electrically connecting the welding gun (2) with a positive electrode and a negative electrode of the argon arc welding power supply (1) respectively; -loading the welding wire (5) in the welding gun (2);
s2, switching on the argon arc welding power supply (1), and melting the welding wire (5) by using a welding gun (2) to form molten metal;
s3, synchronously feeding the welding wire (5) in the welding gun (2), continuously melting the welding wire (5) to form molten metal, and enabling the molten metal to fall into the metal liquid droplet atomizing ejector (3) below;
s4, starting a high-pressure gas supply system (4), continuously conveying high-pressure gas to the metal liquid droplet atomizing ejector (3), and forming an atomizing cone (6);
and S5, allowing the molten metal to pass through the atomizing cone (6) and then deposit on the base material (7) in a semi-solid state, and continuously depositing to form the required metal component.
CN202211207988.XA 2022-09-30 2022-09-30 Consumable electrode argon arc welding 3D printing material increase device and method Pending CN115430846A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600072A (en) * 2012-12-26 2014-02-26 机械科学研究总院先进制造技术研究中心 Multi-metal liquid injection deposition material-increase manufacturing device
CN109262111A (en) * 2018-11-29 2019-01-25 河北科技大学 Mariages build-up welding apparatus and method
CN209349514U (en) * 2018-11-30 2019-09-06 浙江正达模具有限公司 A kind of high-speed steel spraying forming device
CN110523990A (en) * 2019-10-18 2019-12-03 南京钛陶智能***有限责任公司 A kind of 3 D-printing method
CN111659893A (en) * 2020-05-21 2020-09-15 南京航空航天大学 Jet forming synchronous ultrasonic hot finish rolling preparation technology
CN112077314A (en) * 2020-09-07 2020-12-15 江苏理工学院 Arc deposition jet additive manufacturing/repairing device suitable for mechanical arm terminal
CN112108742A (en) * 2020-09-16 2020-12-22 江苏理工学院 Welding device and welding method for argon arc welding
CN113145855A (en) * 2021-02-24 2021-07-23 山东大学 Device and method for preparing high-melting-point alloy powder by electric arc

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103600072A (en) * 2012-12-26 2014-02-26 机械科学研究总院先进制造技术研究中心 Multi-metal liquid injection deposition material-increase manufacturing device
CN109262111A (en) * 2018-11-29 2019-01-25 河北科技大学 Mariages build-up welding apparatus and method
CN209349514U (en) * 2018-11-30 2019-09-06 浙江正达模具有限公司 A kind of high-speed steel spraying forming device
CN110523990A (en) * 2019-10-18 2019-12-03 南京钛陶智能***有限责任公司 A kind of 3 D-printing method
CN111659893A (en) * 2020-05-21 2020-09-15 南京航空航天大学 Jet forming synchronous ultrasonic hot finish rolling preparation technology
CN112077314A (en) * 2020-09-07 2020-12-15 江苏理工学院 Arc deposition jet additive manufacturing/repairing device suitable for mechanical arm terminal
CN112108742A (en) * 2020-09-16 2020-12-22 江苏理工学院 Welding device and welding method for argon arc welding
CN113145855A (en) * 2021-02-24 2021-07-23 山东大学 Device and method for preparing high-melting-point alloy powder by electric arc

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