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Method for manufacturing vehicle body parts

A manufacturing method and component technology are applied in the field of manufacturing high-strength vehicle body components by hot stamping, and achieve the effect of preventing deviation and free design

Active Publication Date: 2018-06-29
明信汽车科技株式会社 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, tailor rolled blanks are all manufactured by smelters. Therefore, there are certain limitations when applied to the manufacture of a large number of vehicle parts.

Method used

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  • Method for manufacturing vehicle body parts
  • Method for manufacturing vehicle body parts
  • Method for manufacturing vehicle body parts

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be described in detail below with reference to the accompanying drawings of the present invention. For the convenience of description, the same constituent elements or components in the drawings use the same reference signs as much as possible.

[0039] refer to image 3 Moving to Fig. 4d, the method for manufacturing a vehicle body part according to the embodiment will be described.

[0040] Such as image 3 As shown, according to the embodiment, the car body parts can be punched (S1), rolled (S2), trimmed for the first time (S3), heated (S4), thermoformed and cooled (S5), trimmed for the second time edge (S6) and manufacture. As a material of the slab 10, an aluminized steel sheet for hot stamping can be used. The aluminum coating of the steel sheet may include an outer aluminum or aluminum alloy layer and an inner intermetallic alloy layer.

[0041] Punching process (S1)

[0042]As shown in Fig. 4a, for stamping and forming, the alu...

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PUM

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Abstract

Provided is a method for manufacturing vehicle body parts, including: rolling a blank having a coating layer such that the blank has two or more regions with different thicknesses; trimming the rolledblank; and performing hot press forming on the trimmed blank, and cooling the trimmed blank. The blank to be rolled has an absorption hole, and a flange protrudes from an edge region of the blank corresponding to a position of the absorption hole. The blank is rolled in two or more different directions.

Description

technical field [0001] The present invention relates to vehicle body components related to collisions, in particular to a method for manufacturing high-strength vehicle body components by hot stamping. Background technique [0002] One of the biggest topics in the automotive industry is light weight and high strength, and hot stamping technology occupies the center of this topic. British Patent No. 1490535 introduces technology related to hot stamping technology and materials. [0003] Hot stamping is the process of heating a steel plate to a high temperature of 900 to 950°C and then quenching it while forming it under pressure to manufacture high-strength, lightweight parts. The hot stamping material contains about 0.2% by weight of carbon and uses boron steel using manganese element and boron element B for improving heat treatment performance. [0004] This hot stamping can perform forming and heat treatment at the same time, so it not only has excellent production effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B21D35/006B21D22/022C21D1/18C21D8/00C21D2261/00B21D53/88C21D2211/008B21D37/16B21D43/28B23K26/38B21D47/00
Inventor 金长寿车洪锡杨大灏崔纹硕严原益
Owner 明信汽车科技株式会社
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