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Particle type friction stir additive manufacturing device and method

A technology of additive manufacturing and friction stir, which is applied in the direction of manufacturing tools, additive processing, non-electric welding equipment, etc., can solve the problems of easy oxidation of materials to be added, and achieve less oxides, short residence time, and low storage costs Effect

Active Publication Date: 2021-07-16
安徽万宇机械设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, in order to continuously and stably provide different types of additive materials and solve the problem that the additive materials used in the additive manufacturing process are easy to oxidize, the present invention provides a particle type friction stir additive manufacturing device and method

Method used

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  • Particle type friction stir additive manufacturing device and method
  • Particle type friction stir additive manufacturing device and method
  • Particle type friction stir additive manufacturing device and method

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Embodiment 1

[0060] Figure 1-6 An embodiment of a granular friction stir additive manufacturing device provided by the present invention, wherein, figure 1 A schematic diagram of the additive manufacturing device, figure 2 A schematic diagram of the wire cutting mechanism, image 3 is the perspective view of the base of the wire cutting mechanism, Figure 4 It is a three-dimensional view of the cutting part of the wire cutting mechanism, Figure 5 is a perspective view of a stirring needle, Figure 6 is a perspective view of a static shoulder.

[0061] Such as Figure 1-6 As shown, a granular friction stir additive manufacturing device provided by the present invention includes a stirring needle 1 , a static shoulder 2 , a material guide tube 3 , a collecting device 4 and a wire cutting mechanism 5 . Wherein, the wire cutting mechanism 5 includes a base 51 and a cutting part 52. The base 51 is a disc-shaped structure with a hole in the center. There are guide wire holes 511 on the...

Embodiment 2

[0068] Figure 8-9 The second preferred additive manufacturing device provided by the present invention, such as Figure 8-9 As shown, the difference from Embodiment 1 is that the static shoulder 2 is divided into an upper part 21 and a lower part 22, and a bearing 6 is nested between the upper and lower parts. Wherein, the shaft shoulder top 21 is fixed with the bearing 6 outer ring by the jackscrew mode, and the shaft shoulder bottom 22 is fixed with the inner ring of the bearing 6 by the jackscrew mode. In order to achieve a better sealing effect and prevent air from entering the static shaft shoulder, the bearing 6 preferably uses a sealed bearing. At the same time, in order to make the bearing withstand the downward pressure of the shaft shoulder, angular contact bearings, thrust ball bearings, and thrust roller bearings are preferably used. In order to realize the relative rotation between the lower part 22 of the shaft shoulder and the upper part 21 of the shaft shoul...

Embodiment 3

[0071]This embodiment provides a granular friction stir additive manufacturing device, which includes the device described in Embodiment 1 or 2, and includes a main shaft and a main shaft driving motor. Wherein, the main shaft includes a rotating shaft and a stationary sleeve, the stirring needle 1 is fixed on the rotating shaft, and the static shoulder 2 is fixed on the stationary sleeve. The particle-type friction stir additive manufacturing equipment provided in this embodiment can adjust the material and diameter of the wire, the wire feeding speed and the wire cutting speed at any time during the additive manufacturing process, and automatically provide continuous and stable additive particles. . It avoids the problem of poor stability when the wire is directly fed into the friction stir additive, and also avoids the problem that the powder or small particles are easily oxidized, and the obtained additive parts have less internal impurities.

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Abstract

The invention provides a particle type friction stir additive manufacturing device and method. The particle type friction stir additive manufacturing device comprises a wire shearing mechanism, the wire shearing mechanism comprises a base and a shearing part with a cutting edge, a wire guide hole is formed in the base, and a wire can pass through the wire guide hole. The particle type friction stir additive manufacturing device is characterized in that the shearing part is in close contact with the base, the shearing part rotates with the geometric center of the base as the axis, so that the cutting edge intermittently cuts the wire sent out from the wire guide hole. According to the particle type friction stir additive manufacturing device, additive particles of different diameters, different lengths and different materials can be obtained at the same time, friction stir additive manufacturing of gradient composite materials is achieved, and it can be guaranteed that the additive particles are continuously and stably provided; and meanwhile, operation is easy, and multi-layer additive manufacturing can be achieved under the condition that an additive device does not need to be adjusted.

Description

technical field [0001] The present invention relates to the technical field of friction stir additive manufacturing, in particular to a granular friction stir additive manufacturing device and method. Background technique [0002] During the friction stir welding process, the material does not melt, which belongs to solid phase connection, and is especially suitable for the processing of non-ferrous metals such as aluminum alloy and magnesium alloy. Friction stir additive manufacturing technology is a new type of additive manufacturing technology based on the principle of friction stir welding. Since the process of friction stir additive manufacturing does not involve the melting and solidification of materials, there are fewer internal defects and less stress in the additive parts. , good performance. [0003] Patent CN107598358B achieves additive manufacturing by using consumable friction stir tools, and adopts the method of friction stir surfacing to accumulate layer by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12B23K20/26B33Y30/00
CPCB23K20/122B23K20/26B33Y30/00Y02P10/25
Inventor 树西万龙吕宗亮
Owner 安徽万宇机械设备科技有限公司
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