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Metal plastic forming method based on self-resistance heating

A plastic forming and metal forming technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of low forming quality, metal surface oxidation, complex forming equipment, etc., and achieve the effect of small springback and high forming efficiency

Active Publication Date: 2020-08-18
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the need to heat the workpiece to a higher temperature in advance in the existing hot forming process, there will be oxidation on the metal surface, and there are also disadvantages such as complex forming equipment and low forming quality.

Method used

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  • Metal plastic forming method based on self-resistance heating
  • Metal plastic forming method based on self-resistance heating
  • Metal plastic forming method based on self-resistance heating

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] The object of the present invention is to provide a metal plastic forming method based on self-resistance heating, which can effectively improve the forming quality and simplify the process flow.

[0032] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] ...

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Abstract

The invention relates to a metal plastic forming method based on self-resistance heating. The metal plastic forming method comprises the steps that a first electrode and a second electrode are connected to non-insulating parts at the two ends of a metal piece correspondingly; the first electrode is connected to one end of a power source, and the second electrode is connected to the other end of the power source; the power source is turned on, the first electrode, the second electrode and the metal piece form a closed loop, and the metal piece is self-heated through the first electrode and thesecond electrode; and a mold is closed, the metal piece deforms, and a metal formed piece is obtained. By means of the method, the quality of the metal formed piece can be effectively improved, and the technological process is simplified.

Description

technical field [0001] The invention relates to the technical field of plastic forming, in particular to a metal plastic forming method based on self-resistance heating. Background technique [0002] The metal thermoforming process is mainly to raise the temperature of the metal forming part to a certain temperature by means of ambient heating, resistance wire heating or self-resistance heating, and then apply forming force to cause plastic deformation of the metal forming part. However, due to the need to heat the workpiece to a higher temperature in advance in the existing hot forming process, there will be oxidation on the metal surface, and there are also disadvantages such as complex forming equipment and low forming quality. Contents of the invention [0003] The purpose of the present invention is to provide a metal plastic forming method based on self-resistance heating, which can effectively improve the forming quality and simplify the process flow. [0004] To a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/16B21D37/10B21D22/02
CPCB21D22/022B21D37/10B21D37/16
Inventor 黄世军刘国乾刘俏何萍任小燕高金龙
Owner YANSHAN UNIV
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