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Novel automobile covering part high-precision stamping manufacturing method

A production method and automobile machine technology, which is applied in the field of automobile production, can solve problems such as unreasonable design of the concave structure, and achieve the effects of smooth dispersion process, prevention of stress concentration, and uniform flow of materials

Inactive Publication Date: 2018-04-10
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the applicant found through engineering tests that although the stress can be dispersed during the flanging process, fine wrinkles still occur on the flanging surface, and these wrinkles are easily overlooked by the staff. The reason for this kind of wrinkles may be due to the design of the concave structure caused by unreasonable

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  • Novel automobile covering part high-precision stamping manufacturing method
  • Novel automobile covering part high-precision stamping manufacturing method
  • Novel automobile covering part high-precision stamping manufacturing method

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 As shown, a stamping method for an automobile panel includes the following steps: Step 1: drawing: drawing the sheet material into the shape of an automobile panel, and the automobile panel in this embodiment is an automobile roof. The material of the top cover is required to have good plastic deformation performance, mostly steel plates such as 08 or 09A1. Make the initial contact position between the punch and the sheet as close as possible to the central part of the sheet so that it can be evenly pulled into the die, which can effectively prevent the sheet from breaking during drawing. The stamping direction must ensure that the punch can enter the die, and the pressing surface should be as flat as possib...

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Abstract

The invention discloses a novel automobile covering part high-precision stamping manufacturing method which comprises the steps of blanking, bending, drawing, forming, flanging and trimming. Accordingto the novel automobile covering part high-precision stamping manufacturing method, the situation that the machining efficiency is reduced due to repeated trimming can be avoided, and the yield of covering parts is increased through the more reasonable machining sequence; and stamping stress concentration is avoided from the aspect of the structural angle, and the strength and rigidity of the automobile covering parts are effectively improved.

Description

technical field [0001] The invention relates to the processing technology in the field of automobile manufacturing, in particular to a stamping manufacturing method of a novel automobile cover. Background technique [0002] Automobile panels refer to the special-shaped surface and internal parts made of thin metal sheets that constitute the automobile body or cab, cover the engine and chassis. The body of a car, the cab of a truck, etc. are composed of covering parts and general stamping parts. After assembly, the covering parts constitute the entire external and internal shape of the body or cab. It is not only an appearance decorative part, but also a closed shell-shaped force-bearing part. Classified by function and location, coverings can be divided into three categories: external coverings, internal coverings and skeleton coverings. There are special requirements for the appearance quality of external cladding and skeleton cladding, and the shape of internal cladding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00
CPCB21D35/001B21D35/002
Inventor 吴雪峰陈建锋孟楠孟小超吴同坤
Owner HARBIN UNIV OF SCI & TECH