Magnesium alloy sheet different temperature drawing mold

A technology of differential temperature deep drawing and magnesium alloy, which is applied in forming tools, manufacturing tools, metal processing equipment, etc., and can solve problems such as poor plasticity at room temperature and difficult stamping and forming
CN102554040AInactive Publication Date: 2012-07-11CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a magnesium alloy sheet different temperature drawing mold. The mold is of inverted type, i.e. a drawing terrace mold (12) and a blank holder (1) are installed at a lower mold of the mold; a concave mold (32) is installed at the upper mold of the mold; a resistance annular heating coil and a temperature measuring element thermal coupler are embedded in the concave mold (32) and the blank holder (1); the upper mold and the lower mold are guided by a ball guide pillar (11) and a guide sleeve (17); and a drawing piece is pushed out from the concave mold (32) by a spring and a hitting plate (18) in the upper mold. A mode of different temperature drawing mold structure is adopted, i.e. a contact part of the blank holder and the concave mold with a blank deformation area is heated, and the cylindrical walls of the concave mold and the terrace mold are cooled, so that the plate blank is provided with a rational temperature difference during the drawing process. The mode of different temperature drawing mold structure is adopted and the surface roughness value of the working surface of the drawing terrace mold is larger than the surface roughness value of the working surface of the blank holder, so that the limiting drawing ratio of AZ31B is improved greatly.
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Description

technical field

[0001] The invention relates to the technical field of magnesium alloy processing, in particular to a magnesium alloy thin plate differential temperature drawing die. Background technique

[0002] With the development of automotive, aviation, aerospace, and electronic industrial products in the direction of lightweight and special performance requirements, magnesium alloy stamping products, as a non-ferrous metal material structure with light weight, high strength and rigidity, good electromagnetic shielding and damping It has broad prospects for application in these industries. However, magnesium alloys are difficult to be stamped and deformed at room temperature, and there are few related research results. It is of great significance to study the stamping forming technology of magnesium alloy sheet to improve the application range of magnesium alloy. Based on light weight, high strength, excellent special performance and advantages in mineral resources, m...

Claims

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