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Method for forming metal foil by utilizing equipotential line to design variable-profile mold

A technology of metal foil and equipotential lines, which is applied in the field of metal material processing, can solve the problems of difficult surface design in the middle of dynamic profile molds, and achieve the effects of improved forming effect, high processing efficiency, and easy modification

Inactive Publication Date: 2021-10-19
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method of using equipotential lines to design variable surface molds to form metal foil materials, so as to solve the problem of difficult design of the middle surface of dynamic surface molds during the forming process of complex curvature metal foil parts

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  • Method for forming metal foil by utilizing equipotential line to design variable-profile mold
  • Method for forming metal foil by utilizing equipotential line to design variable-profile mold

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Embodiment Construction

[0015] The present invention also provides a method for using the equipotential line to design a variable profile mold forming metal foil device. Part (8) is used as two electrodes, respectively connected to the positive and negative poles of direct current, and records the distribution of equipotential lines of the electric field generated between the two electrodes. No., No. 3, No. 4, and No. 5, the more the number of equipotential lines according to the voltage value, the more changes in the middle profile and the better the forming effect;

[0016] (2) Establish a coordinate system, calculate the coordinates of each point in each equipotential line, and design the axial movement position of each height-adjustable ball head cylinder in the dynamic profile mold (3) during the forming process, so that the mold The shape of the profile is always consistent with the shape of the equipotential line with different numbers during the forming process;

[0017] (3) Place the metal ...

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Abstract

The invention relates to a method for forming a metal foil by utilizing an equipotential line to design a variable-profile mold. An upper pressing head, a lower pressing head, height-adjustable ball head cylinders, a blank holder and the metal foil are specifically included. The method is characterized in that firstly, an original metal foil blank and a finally-formed metal foil part serve as two electrodes, the axial position of each height-adjustable ball head cylinder in a dynamic molded surface mold in the forming process is determined according to distribution of electric field equipotential lines, then the optimal forming effect is achieved, and a metal foil part with a complex curvature structure is formed. By means of the device, the shape of the electric field equipotential lines can be fully utilized in the deformation process to determine the middle molded surface of the variable mold, and manufacturing of the metal foil part with the complex curvature structure is effectively achieved; and the problem that the middle molded surface of a dynamic molded surface mold is difficult to design in the forming process of the metal foil part with the complex curvature is solved, and therefore the forming efficiency and the forming effect of the metal foil with the complex curvature are improved.

Description

technical field [0001] The invention relates to the field of metal material processing, in particular to a method for forming a metal foil by using equipotential lines to design a variable surface mold Background technique [0002] Metal foil plastic forming, as one of the important branches of the metal material discipline, is widely used in many fields such as electronic communication, aerospace and transportation, but with the continuous expansion of social needs, the plastic forming process originally suitable for traditional metal materials It will not be suitable for complex curvature metal foil forming. [0003] Studies have shown that by controlling the change of the middle surface of the mold during the forming process, the problems of poor forming effect and low processing efficiency during the forming of metal foil with complex curvature can be improved. However, there are still some problems to be solved urgently by means of controlling the middle surface of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D33/00
CPCB21D33/00
Inventor 李超邹庆于光宁
Owner HARBIN UNIV OF SCI & TECH
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