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Hydro-mechanical deep drawing forming method for sheet metal component with uniform deformation

A technology of liquid-filled deep drawing and sheet metal parts, which is applied in the field of liquid-filled deep drawing of metal sheets, can solve the problems of insufficient deformation of parts and uneven distribution of deformation, and achieve uniform deformation of parts, improve uniformity of deformation, and uniform deformation Effect

Inactive Publication Date: 2015-11-25
COMAC +1
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Problems solved by technology

[0005] In order to solve the problem of insufficient deformation and uneven distribution of deformation of parts, and at the same time break through the limitation of deformation adjustment amount due to folding defects in anti-expansion liquid-filled deep drawing, the invention provides a liquid-filled deep-drawing forming of sheet metal parts with uniform deformation method

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  • Hydro-mechanical deep drawing forming method for sheet metal component with uniform deformation
  • Hydro-mechanical deep drawing forming method for sheet metal component with uniform deformation
  • Hydro-mechanical deep drawing forming method for sheet metal component with uniform deformation

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Embodiment Construction

[0023] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention.

[0024] In the following detailed description, directional terms, such as "left", "right", "top", "bottom", "front", "rear", "forward", "backward", etc., refer to the attached The directions described in the figure are used. Components of embodiments of the present invention may be positioned in a variety of different orientations, and directional terms are used for purposes of illustration and not limitation.

[0025] Such as Figure 1-3 A...

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Abstract

The invention provides a hydro-mechanical deep drawing forming method for a sheet metal component with uniform deformation. The method includes the following steps of (1), placing a sheet; (2), applying blank holder force; (3), conducting forward expansion forming; (4), setting the pressure of a liquid filling chamber; (5), conducting hydro-mechanical deep drawing forming; and (6), picking up a component. Hydro-mechanical deep drawing forming with component uniform deformation is achieved through the change of the pre-expansion direction of the sheet; and the method breaks through the limitation of the pre-expansion amount in reverse expansion hydro-mechanical deep drawing, and the deformation uniformity of the component can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of liquid-filled deep-drawing forming of thin metal plates, and in particular relates to a liquid-filled deep-drawing forming method for uniform deformation of sheet metal parts. Background technique [0002] Lightweight is an important measure for automobiles to save energy, reduce emissions, and cope with energy crises and environmental pressures. The use of advanced high-strength steel sheet parts such as dual-phase steel is one of the main ways to achieve lightweight vehicles. Due to the low yield ratio of the dual-phase steel plate and the large difference between the yield strength and the tensile strength, it must have sufficient deformation to obtain sufficient strength after forming the part through work hardening. However, there are problems of insufficient and uneven deformation of parts in rigid die deep drawing and ordinary liquid-filled deep drawing, which affects the overall bearing capacity ...

Claims

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Application Information

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IPC IPC(8): B21D26/021
Inventor 陈保国何雪婷
Owner COMAC
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