Anti-shielding, anti-interference, and anti-shunt protection device and method for CMT arc additive

A technology of anti-interference device and protective device, which is applied in the direction of electrode support device, device for supplying/removing protective gas, additive processing, etc. It can solve problems such as arc instability, metal oxidation, and energy inconcentration, and achieve improved additive manufacturing. Quality, increase antioxidant, eliminate shunt effect

Active Publication Date: 2022-03-29
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a protective device for CMT arc material addition of thin-walled parts to solve the problems of arc instability, energy inconcentration and metal oxidation in the process of existing thin-walled parts CMT arc material addition

Method used

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  • Anti-shielding, anti-interference, and anti-shunt protection device and method for CMT arc additive
  • Anti-shielding, anti-interference, and anti-shunt protection device and method for CMT arc additive
  • Anti-shielding, anti-interference, and anti-shunt protection device and method for CMT arc additive

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with specific embodiments.

[0028] Such as Figure 1-6 As shown, the anti-shielding, anti-interference and anti-shunt protection device of the CMT arc additive includes a main body of the protection device, an anti-interference device, an anti-shield device and an anti-shunt device;

[0029] The main body of the protective device includes a fixed sleeve 14, which is fixed on the lower part of the welding torch body 2 through a hexagonal stud 3, and the upper part of the fixed sleeve 14 is thickened, and the hexagonal stud 3 fixes the fixed sleeve 14 through the thickened part On the welding torch body 2; the stainless steel support frame (7) is fixed on the end of the welding torch body 2, and its top surface is supported on the bottom surface of the fixing sleeve 14 for supporting the fixing sleeve, thereby improving the safety of the overall device.

[0030] The anti-jamming device includes two i...

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Abstract

The invention discloses an anti-shielding, anti-interference and anti-shunt protection device and method for CMT arc additive materials, and relates to the technical field of additive equipment. The guard consists of a ring magnet and a non-conductive elastomeric washer. The outside of the ring magnet is provided with a non-magnetic ring magnet support frame, a No. 1 stainless steel sealing ring and a ring elastic sealing ring, which are used to ensure the position accuracy of the ring magnet. A fixing sleeve and a hexagonal stud are arranged inside the ring magnet for installation and positioning of the whole device on the welding torch. In addition, this device is also equipped with an air inlet valve, a side blowing device composed of a ceramic nozzle and an elastic elbow to form a two-way gas channel. The invention solves the problems of arc instability, energy inconcentration and metal oxidation in the CMT arc material addition process. The device has the advantages of simple structure, convenient use and diversified functions, and can greatly improve the efficiency and quality of metal arc additive materials.

Description

technical field [0001] The invention relates to the technical field of additive equipment, in particular to an additive protection device and a method for using the device. Background technique [0002] Arc additive manufacturing is an additive manufacturing process in which the arc is used as the heat source and the welding wire is used as the additive material. The arc additive manufacturing technology has sufficient metallurgical reaction, high forming density, high energy efficiency, high material utilization rate, and high working efficiency. Due to its small size limitation, it is widely used in various fields of industry. [0003] Compared with the traditional arc additive technology, the cold metal transfer technology (CMT) adopts pulsed wire feeding and short-circuit transition. The entire droplet transfer process is a high-frequency alternating process of "one cold and one hot", which can greatly reduce The heat input during the additive process and the reduction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/18B23K9/28B23K9/32B33Y10/00B33Y30/00B33Y40/00
CPCB23K9/182B23K9/28B23K9/325B23K9/32B33Y10/00B33Y30/00B33Y40/00
Inventor 占小红王强颜廷艳王磊磊
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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