Stirring friction additive manufacturing device and method with cooling applying

An additive manufacturing and friction stir technology, applied in manufacturing tools, metal processing equipment, non-electric welding equipment, etc., can solve the problems of coarsening of grains and second-phase particles, uneven structure, and performance degradation of additive components. To achieve the effect of easy implementation, uniform organization, and reduced heat impact

Active Publication Date: 2019-04-12
NORTHEASTERN UNIV
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Problems solved by technology

[0003] In order to solve the problems such as coarsening of crystal grains and second phase particles, uneven structure, and performance degradation of additive components caused by thermal

Method used

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  • Stirring friction additive manufacturing device and method with cooling applying
  • Stirring friction additive manufacturing device and method with cooling applying
  • Stirring friction additive manufacturing device and method with cooling applying

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Embodiment Construction

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0024] Such as Figure 1 to Figure 4 As shown, the present invention provides a cooling friction stir additive manufacturing device, including a base plate 1, the top of the base plate 1 is fixedly equipped with a first base 2 and a second base 3, the first base 2 and the second base There is a cuboid-shaped gap 4 between the bases 3, and a test plate 5 for adding material is placed in the gap 4, and a backing plate 6 is arranged at the bottom of the test plate 5 for adding material, and the top of the test plate 5 for adding material is connected to the...

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Abstract

The invention belongs to the technical field of metal material additive manufacturing, and discloses a stirring friction additive manufacturing device with cooling applying. The stirring friction additive manufacturing device comprises a bottom plate, wherein a first base and a second base are correspondingly and fixedly assembled at the top of the bottom plate, a gap is reserved between the firstbase and the second base, and a test plate for additive is placed in the gap; a cushion plate is arranged at the bottom of the test plate for the additive, and grooves are formed in the surfaces, incontact with the test plate for the additive, of the first base and the second base; water cooling blocks are connected into the grooves in an inserted mode, the second base is provided with air cylinders for clamping the test plate for the additive, and air cylinder push rods are disposed perpendicular to the side surface of the test plate for the additive; and a pressure roller and a stirring head are further arranged at the top of the test plate for the additive. The stirring friction additive manufacturing device applies cooling on an existing stirring friction additive manufacturing technology, the thermal influence of the stirring and friction processing thermal cycle on the completed additive part is effectively reduced, and coarsening of a fine uniformity equiaxial crystal structure of an additive area and second phase particles are suppressed to obtain an additive member with a uniform structure and excellent performance.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing of metal materials, and in particular relates to a cooling-applied friction stir additive manufacturing device and method. Background technique [0002] Friction stir additive manufacturing (FSAM) technology is a high-efficiency, low-cost, and small-deformation solid-state additive method developed based on the principle of friction stir. This method is based on the technical principle of "layer-by-layer" accumulation of additive manufacturing. The rotating friction of the stirring head causes the two layers of metal to be plasticized and connected together, and then stirred and connected layer by layer to form. Compared with the high-energy beam metal additive manufacturing technology, it does not melt and solidify the metal during the additive process, and there will be no defects such as pores, cracks, and poor fusion. The equiaxed grain structure is conducive to improving the c...

Claims

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Application Information

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IPC IPC(8): B23K20/12B23K20/26B23P15/00
CPCB23K20/12B23K20/1215B23K20/26B23P15/00
Inventor 何长树韦景勋李颖张志强
Owner NORTHEASTERN UNIV
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