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A 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 the effect of less oxides, less impurities, and low storage costs

Active Publication Date: 2022-07-08
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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  • A particle type friction stir additive manufacturing device and method
  • A particle type friction stir additive manufacturing device and method
  • A particle type friction stir additive manufacturing device and method

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Embodiment 1

[0060] Figure 1-6 It is an embodiment of a particle type friction stir additive manufacturing device provided by the present invention, wherein, figure 1 Schematic diagram of the additive manufacturing device, figure 2 Schematic diagram of the wire cutting mechanism, image 3 It is a three-dimensional 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 the three-dimensional view of the stirring needle, Image 6 It is a perspective view of the static shaft shoulder.

[0061] like Figure 1-6 As shown, a granular friction stir additive manufacturing device provided by the present invention includes a stirring needle 1 , a static shaft shoulder 2 , a material guiding tube 3 , a collecting device 4 and a wire cutting mechanism 5 . Among them, 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 cen...

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 shaft shoulder 2 is divided into an upper part 21 and a lower part 22, and a bearing 6 is nested between the upper part and the lower part. Wherein, the upper part 21 of the shaft shoulder is fixed with the outer ring of the bearing 6 by means of a jack screw, and the lower part 22 of the shaft shoulder is fixed with the inner ring of the bearing 6 by means of a jack screw. In order to achieve a better sealing effect and prevent air from entering the static shaft shoulder, the bearing 6 is preferably a sealed bearing. At the same time, in order to make the bearing bear the downward pressure of the shaft shoulder, angular contact bearings, thrust ball bearings and thrust roller bearings are preferentially used. In order to realize the relative rotation between the lower part 22 of the shaft s...

Embodiment 3

[0071]This embodiment provides a particle-type friction stir additive manufacturing device, which includes the device described in Embodiment 1 or 2, as well as a spindle and a spindle drive motor. The main shaft includes a rotating shaft center and a stationary sleeve, the stirring needle 1 is fixed on the rotating shaft center, and the static shaft shoulder 2 is fixed on the stationary sleeve. The granular friction stir additive manufacturing equipment provided in this embodiment can adjust the wire material and diameter, wire feeding speed and 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 for friction stir additive, and also avoids the problem of using powder or small particles for additive, which is easy to be 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 device includes a wire cutting mechanism, the wire cutting mechanism includes a base and a cutting part with a cutting edge, the base is provided with a wire guide hole, and the wire guide hole is suitable for the passage of the wire; It is characterized in that the cutting part is in close contact with the base, and the cutting 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. material. The particle-type friction stir additive manufacturing device provided by the present invention can simultaneously obtain the additive particles of different diameters, different lengths and materials, realizes the friction stir additive manufacturing of gradient composite materials, and can ensure the continuous and stable supply of the additive particles. . At the same time, the operation is simple, and multi-layer additive manufacturing can be realized without adjusting the additive device.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(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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