A friction stir additive manufacturing device and method applying cooling
A technology of additive manufacturing and friction stir, which is applied in the direction of manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of coarsening of grains and second phase particles, uneven structure, performance degradation of additive components, etc., to achieve Easy implementation, uniform structure, and reduced thermal impact
Active Publication Date: 2020-10-09
NORTHEASTERN UNIV LIAONING
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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 influence in the friction stir additive process, the present invention provides a friction stir additive manufacturing device with cooling and The method and technical scheme are as follows:
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of metal material additive manufacturing. It discloses a cooling stir friction additive manufacturing device, which includes a bottom plate. The top of the bottom plate is fixedly equipped with a first base and a second base respectively. There is a gap between the two bases, and a test plate for additive manufacturing is placed in the gap. A backing plate is provided at the bottom of the test plate for additive manufacturing. The surfaces of the first base and the second base that are in contact with the test plate for additive manufacturing are respectively provided. There is a groove, and a water-cooling block is inserted into the groove. The second base is provided with a cylinder for clamping the additive test plate. The cylinder push rod is set perpendicular to the side of the additive test plate. The top of the additive test plate It is also equipped with a pressure wheel and a stirring head; the present invention adds cooling to the existing friction stir additive manufacturing technology, effectively reducing the thermal impact of the friction stir processing thermal cycle on the completed additive parts, and suppressing the fine and uniform additive areas. The equiaxed crystal structure and the second phase particles in the matrix are coarsened, and an additive component with a uniform structure and excellent performance is obtained.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
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 LIAONING