Plate incremental forming device and method based on overlaid double-layer auxiliary materials

A progressive forming and auxiliary material technology, applied in the field of material processing, can solve the problems of not being able to improve the surface quality of the target sheet metal, and achieve the effects of increasing the forming limit, improving processing efficiency, and increasing hydrostatic pressure

Active Publication Date: 2019-10-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent improves the formability of the target sheet by superimposing auxiliary materials, but this method cannot improve the surface quality of the target sheet, and there will still be obvious processing marks on the surface of the sheet

Method used

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  • Plate incremental forming device and method based on overlaid double-layer auxiliary materials

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Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 A sheet metal progressive forming device based on superimposed double-layer auxiliary materials is shown, including tool head 1, upper auxiliary material 2, base material 3, lower auxiliary material 4 and lubricating oil 5, upper auxiliary material 2 and lower auxiliary material 4 The shape is suitable for the base material 3 to be processed, and they are respectively laid on the upper and lower surfaces of the base material 3, and the lubricating oil 5 is filled between the base material 3 and the upper auxiliary material 2 and between the base material 3 and the lower auxiliary material 4. , the tool head 1 applies force to the base material 3 through the upper auxiliary material 2 to perform incremental forming processing, and the lubricating oil 5 is coated on the surface of the base material 3 to reduce the friction between it and the upper auxiliary material 2 and the lower auxiliary material 4, At the same time, it is guaranteed that the base mat...

Embodiment 2

[0043] Such as figure 1Shown is a sheet metal progressive forming device based on superimposed double-layer auxiliary materials. The device is used to process the base material 1, and mainly includes an upper auxiliary material 2 and a lower auxiliary material 4 respectively arranged on both sides of the base material 3 and The tool head 1 matching the upper auxiliary material 2, between the upper auxiliary material 2 and the base material 3, and between the lower auxiliary material 4 and the base material 3 are provided with a lubricating layer 5, and the tool head 1 passes through the upper auxiliary material 2 Pressure is applied to deform the upper auxiliary material 2 , the base material 3 and the lower auxiliary material 4 , so that the base material 3 can be progressively formed under the protection of the upper auxiliary material 2 and the lower auxiliary material 4 .

[0044] The upper auxiliary material 2 is used to protect the processed surface of the base material ...

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Abstract

The invention relates to a plate incremental forming device based on overlaid double-layer auxiliary materials. The plate incremental forming device comprises an upper auxiliary material, a lower auxiliary material and a tool head matched with the upper auxiliary material, and the upper auxiliary material and the lower auxiliary material are arranged on the two sides of a base material. Lubricating layers are arranged between the base material and the upper auxiliary material and between the base material and the lower auxiliary material. The tool head exerts pressure to the upper auxiliary material, so that the upper auxiliary material, the base material and the lower auxiliary material deform. A plate incremental forming method based on the device comprises the steps that 1) the lubricating layers are arranged on the upper surface and the lower surface of the base material and are attached to the upper auxiliary material and the lower auxiliary material, and a piled material is obtained; 2) the edge of the piled material is clamped and fixed, and processing is carried through the tool head; and 3) and the piled material is taken down, all the layers are separated, and the processed material is obtained. Compared with the prior art, it can be guaranteed that no residual height or processing mark exists on the surface of the base material, and high surface quality is achieved;and according to the plate incremental forming device based on the overlaid double-layer auxiliary materials and the plate incremental forming method, the stress state of base material forming can bechanged, friction force is reduced, and the forming limit of the base material is improved.

Description

technical field [0001] The invention belongs to the technical field of material processing, and relates to a sheet metal progressive forming device and method based on superimposed double-layer auxiliary materials. Background technique [0002] The surface quality and forming limit of sheet metal incremental forming parts are two important requirements. Amini et al. found in the literature "An investigation of conventional and ultrasonic-assisted incremental forming of announced AA1050 sheet" (International Journal of Advanced Manufacturing Technology, 2017, Volume 90, Issue 5-8, pp 1569-1578) that the effect on the tool head Ultrasonic vibration can increase the forming limit of the sheet. Lu et al. studied the double-point incremental forming method in the literature "Investigation of material deformation mechanism in double side incremental sheet forming" (International Journal of Machine Tools and Manufacture, Volume 93, June 2015, pp 37-48). Compared with the single-p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D31/00B21D37/18
CPCB21D31/005B21D37/18
Inventor 常志东黄文帅杨梅刘欣梅陈军
Owner SHANGHAI JIAO TONG UNIV
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