Reinforcing rib sheet metal part forming method based on electric arc 3D printing and incremental forming technology
A 3D printing and incremental forming technology, applied in the direction of additive processing, etc., can solve the problems of low 3D printing production efficiency, reduced material strength, poor printing accuracy, etc., to reduce the phenomenon of easy cracking, reduce deformation resistance, and the method is simple and feasible Effect
Inactive Publication Date: 2019-11-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF8 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is an obvious defect in it, that is, the wall thickness is obviously thinned, which reduces the strength of the material, and it is easy to stress concentration at the forming corner to cause cracking.
[0004] 3D printing technology can quickly obtain high-precision parts, but there are currently many ways to obtain metal parts using 3D printing technology. One is to use 3D technology to directly print metal parts, but this method is costly and takes a long time.
Significantly improve the problems of low production efficiency, high cost and extremely poor printing accuracy of 3D printing
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] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0024] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.
[0025] The invention discloses a method for forming a stiffener sheet metal part based on arc 3D printing and progressive forming technology, which includes the following steps:
[0026] Step 1), obtaining the feed path of the incremental forming tool head along the direction of the side wall of the sheet;
[0027] step 2), such as figure 2 As shown, since the incremental forming tool head processes the sheet metal in a helical manner, the deformation paths on both sides of the shee...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a reinforcing rib sheet metal part forming method based on an electric arc 3D printing and incremental forming technology. According to the method, the electric arc 3D printingtechnology is combined, a layer of material is sprayed in the part forming process to form reinforcing ribs, and therefore the strength of sheet metal is effectively improved; meanwhile, when the material is melted and sprayed by an electric arc 3D printing nozzle, generated heat can increase the local temperature of the sheet metal, and therefore the deformation resistance of the material is reduced, the deformation degree of the material in the deformation process is deepened, the resilience is reduced, and the forming precision of a part is improved; and by means of the method for combining the electric arc 3D printing technology and the incremental forming technology, the strength of the sheet metal in the incremental forming process can be improved, the phenomenon that the corner isprone to be cracked can be reduced, the deformation resistance of the material is reduced, and the forming precision of the material is improved.
Description
technical field [0001] The present invention relates to the progressive forming technology of sheet metal parts, in particular to a method for forming stiffened sheet metal parts based on arc 3D printing and progressive forming technology. Background technique [0002] Metal sheet metal forming is widely used in the manufacturing industry and is a new type of sheet metal processing technology. The traditional sheet metal forming process must use molds, so the production cycle is long, the cost is high, and it is difficult to adapt to the production mode of small batches, multiple varieties and sample trial production. It is more suitable for the production of large batches of parts, but in the production process of small and medium batches of parts In the complex process of mold design, manufacturing, modification, etc., the cost will significantly increase the cost of a single part, and the cost of four parts is too long. It is difficult to quickly produce the parts designe...
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 Applications(China)
IPC IPC(8): B21D31/00B22F3/115B33Y10/00
CPCB21D31/005B22F3/115B33Y10/00
Inventor 王辉吴田莉光凯惠王建华姚运飞刘彬彬朱仝辉
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS