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Magnesium alloy cold pressing automobile fender and forming process thereof

A molding process and fender technology, applied to vehicle components, superstructure sub-assemblies, superstructures, etc., can solve problems such as cracking and easy wrinkling of workpieces, achieve precise control of precision and strength, light weight, and realize size Effect

Inactive Publication Date: 2013-02-06
上海宏昌汽配有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a magnesium alloy cold stamping automobile fender and its forming process, and effectively solve the problem that the workpiece is easy to wrinkle and crack in the stamping and drawing process

Method used

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  • Magnesium alloy cold pressing automobile fender and forming process thereof
  • Magnesium alloy cold pressing automobile fender and forming process thereof
  • Magnesium alloy cold pressing automobile fender and forming process thereof

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Embodiment Construction

[0021] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0022] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual impleme...

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Abstract

The invention relates to the technical field of manufacture of automobile parts, and particularly relates to a magnesium alloy cold pressing automobile fender and a forming process thereof. The process comprises the steps that an entire magnesium alloy plate is cut into single rectangular materials; each rectangular material is subjected to chamfering and round cornering; a duck tongue-shaped process cut is punched at the middle position of a workpiece obtained after round cornering by using a blank holder to fix, and then the workpiece is drawn into a plate-shaped body and a reinforcement rib; the process compensation part of a workpiece obtained after drawing is cut according to the range of a trimming line; a workpiece obtained after the cutting of the trimming line is carried out flanging and shaping; and a workpiece obtained after flanging and shaping is punched a central hole and round holes. Therefore, the magnesium alloy cold pressing automobile fender is made by the process, and has the characteristic of lighter weight compared with the fenders made of traditional materials, and solves the problems of easy crinkling and cracking of workpieces during punching and drawing procedures; and meanwhile, the precise control on the dimension, precision and strength of the fender is achieved.

Description

technical field [0001] The invention relates to the technical field of automobile parts manufacturing, in particular to a magnesium alloy cold stamping automobile fender and a forming process thereof. Background technique [0002] Automobile fender parts are important spare parts for automobiles. At present, the wheel fenders of domestic mid-to-high-end cars are generally made of steel materials, and others have plastic structure fenders. [0003] The present invention is designed as a fender for magnesium alloy parts, using 5154 aluminum-magnesium alloy sheet material, the magnesium content of the sheet material is 3.1% to 3.9%, and the thickness of the sheet material is 1.0±0.06mm. This has brought about some difficult technical problems to be faced, for example: the aluminum-magnesium alloy sheet has a large magnesium content, high mechanical strength, and the crystal grains are easy to break; Stretch ratio is large. [0004] Considering the above problems, generally sp...

Claims

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Application Information

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IPC IPC(8): B62D25/16B21D35/00
Inventor 顾行训马雪珊王潇雅叶剑荣
Owner 上海宏昌汽配有限公司
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