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Machining method and device for sheet metal part with variable wall thickness based on 3D printing and incremental forming technology

A technology of incremental forming and sheet metal parts, applied in the direction of additive processing, metal material coating process, additive manufacturing, etc., can solve the problems of difficult parts, difficulty in rapid response, increase in manufacturing costs, etc., to reduce deformation resistance, The method is simple and feasible, and the effect of improving the forming accuracy

Inactive Publication Date: 2018-02-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production of small and medium batch parts, the cost of mold manufacturing will significantly increase the cost of a single part, and there is a link of mold design and manufacture in the part manufacturing process, so it is difficult to quickly produce the designer designed. Parts, it is more difficult to respond quickly to the individual needs of users

Method used

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  • Machining method and device for sheet metal part with variable wall thickness based on 3D printing and incremental forming technology
  • Machining method and device for sheet metal part with variable wall thickness based on 3D printing and incremental forming technology
  • Machining method and device for sheet metal part with variable wall thickness based on 3D printing and incremental forming technology

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with specific embodiments.

[0025] figure 1 It is a schematic diagram of the structure of the variable-wall-thickness sheet metal parts processing device based on 3D printing and incremental forming technology. The variable-wall-thickness sheet metal parts processing device based on 3D printing and incremental forming technology includes incremental forming chuck 1 and incremental forming tool head 2 , a laser beam 3 and a powder spray head 4 . The powder nozzle 4 sprays powder on the sheet where the wall thickness needs to be increased or where it is easy to become thinner during the forming process. The laser beam 3 is used to clad the powder on the surface of the sheet to increase the thickness of the material. For other parts, there is almost no thinning or no In the area where the wall thickness needs to be increased, the powder feeding operation is not performed; at the same time, the laser ...

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Abstract

The invention discloses a machining method and device for a sheet metal part with a variable wall thickness based on a 3D printing and incremental forming technology. The machining device comprises anincremental forming chuck (1), an incremental forming tool head (2), a laser beam (3) and a powder spraying head (4); the powder spraying head (4) sprays powder on the place where needs to increase the wall thickness or is prone to becoming thinner in the forming process on a sheet; the laser beam (3) is used for making the powder to clad on the surface of the sheet, the material thickness is increased, and for the area where thinning is not required for the part or the wall thickness does not need to be increased, powder feeding operation is not conducted; meanwhile, the laser beam (3) is also used for heating the surface of a material, so that plastic forming is facilitated; and the material is formed by the incremental forming tool head through the heating area. According to the methodcombining a laser synchronous powder feeding 3D printing technology with the incremental forming technology, the problems that the side wall becomes thin during incremental forming of the sheet, andthe thickness cannot be controlled are solved.

Description

technical field [0001] The invention relates to the progressive forming manufacture of sheet metal parts, especially the progressive forming manufacture of sheet metal parts with large side wall inclination angles. Background technique [0002] Sheet metal forming is used extensively in manufacturing industries such as automotive and aerospace. The traditional sheet metal forming process uses dies for stamping, which makes the production cycle longer and more expensive, and is more suitable for mass production of parts. However, in the production of small and medium batch parts, the cost of mold manufacturing will significantly increase the cost of a single part, and there is a link of mold design and manufacture in the part manufacturing process, so it is difficult to quickly produce the designer designed. Parts, it is even more difficult to respond quickly to the individual needs of users. In order to meet the needs of the market, various advanced sheet metal forming met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105C23C24/10B33Y30/00B33Y10/00
CPCC23C24/103B33Y10/00B33Y30/00B22F10/00B22F12/41B22F12/53B22F10/28Y02P10/25
Inventor 王辉李娟光凯惠
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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