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Arc additive and laser-assisted thermoplastic forming composite manufacturing device and method

A laser-assisted plastic forming technology, which is applied in the field of additive manufacturing devices, can solve the problems of inability to completely break the columnar crystal structure and limited plastic deformation depth, and achieve the effect of improving comprehensive mechanical properties, sufficient thermal deformation, and reasonable structural design

Inactive Publication Date: 2020-04-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some metal materials with high strength and low plasticity at room temperature, such as titanium alloys, high-temperature alloys, high-strength steels, etc., the depth of plastic deformation caused by room temperature rolling is limited, and the columnar grain structure cannot be completely broken, and the load capacity of the equipment is also raised. higher requirements

Method used

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  • Arc additive and laser-assisted thermoplastic forming composite manufacturing device and method
  • Arc additive and laser-assisted thermoplastic forming composite manufacturing device and method
  • Arc additive and laser-assisted thermoplastic forming composite manufacturing device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The structure of the arc additive and laser-assisted thermoplastic forming composite manufacturing device in this embodiment is as follows: Figure 1 to Figure 2As shown, it includes a workbench 17 and a base plate 16 fixed on the workbench 17 by a clamp. A kinematic machine tool is arranged above the workbench 17. An arc additive module and a plastic forming module connected to the kinematic machine tool are arranged above the base plate 16. The arc additive module includes a welding torch 12 and a wire feeder 13 that feeds welding wire 14 to the welding torch 12. The welding torch 12 is connected to a welding power source, and the wire feeder 13 delivers the welding wire 14 required for the addition; A plastic forming mechanism 7 for plastically forming the deposition layer 15, a laser heating module for heating the deposition layer 15 below the plastic forming mechanism 7 is provided on the side of the plastic forming module above the substrate 16, and the laser heati...

Embodiment 2

[0032] The structure of the arc additive and laser-assisted thermoplastic forming composite manufacturing device in this embodiment is as follows: image 3 As shown, the only difference between this embodiment and Embodiment 1 is that the plastic forming module of this embodiment is an ultrasonic impact device, and the ultrasonic impact device includes an ultrasonic generator 9-1, an ultrasonic transducer 9-2 and an ultrasonic transducer The amplitude rod 9-3, the ultrasonic transducer 9-2 is connected with the ultrasonic generator 9-1 through a circuit, the ultrasonic horn 9-3 is arranged under the ultrasonic transducer 9-2, and the ultrasonic horn 9-3 The lower end is provided with a clamping handle 9-4, and the lower part of the clamping handle 9-4 holds the impact tool head 9-5, and the ultrasonic horn 9-3, the clamping handle 9-4 and the impact tool head 9- 5 constitutes the plastic forming mechanism 7. The rest of the structure of this embodiment is the same as that of ...

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Abstract

The invention discloses an arc additive and laser-assisted thermoplastic forming composite manufacturing device and method. The arc additive and laser-assisted thermoplastic forming composite manufacturing device comprises a workbench and a base plate fixedly arranged on the workbench. A moving machine tool is arranged above the workbench; and an electric arc additive module and a plastic formingmodule which are connected to the moving machine tool are arranged above the base plate. The electric arc additive module comprises a welding gun and a wire feeder; the plastic forming module comprises a mechanism for carrying out plastic forming on a deposition layer on the surface of the base plate; a laser heating module for heating the deposition layer under the plastic forming mechanism is arranged at one side of the plastic forming module above the base plate; the laser heating module comprises a laser generator and a laser head connected with the laser generator through an optical fiber, the laser generator is connected with a stabilized voltage supply, the laser head comprises a housing, an optical fiber inlet is formed in one end of the housing, a laser outlet is formed in the other end of the housing, a collimating mirror and a focusing mirror are arranged in the housing, and the laser outlet faces the deposition layer under the plastic forming mechanism.

Description

technical field [0001] The invention relates to an additive manufacturing device and method, in particular to a composite manufacturing device and method for arc additive material and laser-assisted thermoplastic forming. Background technique [0002] Arc additive manufacturing is an additive manufacturing technology that uses metal wire as the forming material and uses electric arc or plasma arc as the heat source. Arc additive manufacturing technology has attracted more and more attention due to its advantages of low cost, high efficiency, and high degree of flexibility, especially in the efficient and rapid manufacturing of large-scale structural parts. However, in specific industrial applications, due to the large heat input of the arc, the internal microstructure of the component is mostly columnar crystals and dendrites, which will significantly reduce the mechanical properties of the component and cause anisotropy, which greatly limits the arc. Practical application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/348B23K26/342B23K26/60B23K26/70B23K26/146B33Y30/00
CPCB33Y30/00B23K26/146B23K26/342B23K26/348B23K26/60B23K26/702
Inventor 张涛沙华浦鲁世红张少航李彦鹏吕松阳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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