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Anti-shielding, anti-interference and anti-shunting protection device and method for CMT electric arc additive material

A technology of anti-interference device and protective device, which is applied in the direction of electrode support device, device for providing/removing protective gas, additive processing, etc., and can solve problems such as metal oxidation, energy inconcentration, and arc instability

Active Publication Date: 2021-09-14
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-shunting protection device and method for CMT electric arc additive material
  • Anti-shielding, anti-interference and anti-shunting protection device and method for CMT electric arc additive material
  • Anti-shielding, anti-interference and anti-shunting protection device and method for CMT electric arc additive material

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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-shunting protection device and method for CMT electric arc additive material, and relates to the technical field of additive equipment. The protection device comprises an annular magnet and a non-conductive elastic gasket, wherein a non-magnetic annular magnet supporting frame, a first stainless steel sealing ring and an annular elastic sealing ring are arranged outside the annular magnet and used for guaranteeing the position precision of the annular magnet. and a fixing sleeve and a hexagonal stud are arranged in the annular magnet and used for mounting and positioning the whole device on a welding gun. In addition, the device is further provided with a side blowing device composed of an air inlet valve, a ceramic nozzle and an elastic bent tube, and two air channels are formed. The problems that in the CMT electric arc additive material manufacturing process, the electric arc is unstable, energy is not concentrated, and metal is oxidized are solved. The device is simple in structure, convenient to use, diversified in function and capable of greatly improving 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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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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