Ultra-high strength steel hot-stamping die for car door anticollision beam

A hot stamping die and ultra-high-strength steel technology, applied in the field of hot stamping, can solve the problems of severe springback, low strength, and inability to achieve, and achieve the effects of weight reduction, good surface quality, and convenient processing

Inactive Publication Date: 2011-02-16
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the door anti-collision beam has various forms, and the manufacturing method is mostly cold forming, and the strength is not high. High strength and ultra-high strength are the development direction of the door anti-collision beam
Stamping of high-strength steel plates at room temperature is prone to cracking, severe springback, and cannot achieve the strength requirements of more than 1500 MPa

Method used

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  • Ultra-high strength steel hot-stamping die for car door anticollision beam
  • Ultra-high strength steel hot-stamping die for car door anticollision beam
  • Ultra-high strength steel hot-stamping die for car door anticollision beam

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Embodiment Construction

[0028] Attached below figure 1 ~ attached Figure 4 The example shown illustrates a hot stamping die for an ultra-high strength steel door impact beam.

[0029] The mold for preparing the door anti-collision beam of the present invention includes an upper mold 2 and a lower mold 3 . The upper die 2 is mainly composed of a combination punch 6, cooling system, sealing ring, guide post 12, punch mounting plate 5, and upper mounting frame 4; the lower die is mainly composed of a combination die 7, a cooling system , Seal groove 14, guide sleeve 10, die mounting plate 8, lower mounting frame 9, sheet metal positioning device 11.

[0030] attached figure 1 In order to ensure the smooth progress of the forming process, so that no forming defects appear at the position of the mold block, and to optimize the cooling effect of the cooling system, the blocks of the combined punch 6 and the combined die 7 avoid the corners of the formed part, And the corresponding blocks of the combin...

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Abstract

The invention provides a hot-stamping die for an anticollision beam, comprising an upper die and a lower die, wherein the upper and lower dies mainly comprise combined convex/concave dies, cooling systems and a cooling seal ring. The blocks of the combined convex/concave dies avoid the corners and are staggered relatively. The cooling systems adopt drill holes, wherein the diameter of the holes is 8-30mm and the peaks of the holes are 3-10mm distant from the profiles; the two ends of the holes are sealed after hole drilling; runway type water troughs are processed near the places where the block dies are 10-50mm distant from the two end faces; the cooling water enters from one water trough and flows out of the other water trough; and seal grooves are arranged on the cooling water troughs and the cooling water troughs are provided with the seal ring and are externally connected with cooling water pipes.

Description

Technical field: [0001] The invention relates to a hot stamping die of an ultra-high-strength steel car door anti-collision beam, which belongs to the field of hot stamping forming. Background technique: [0002] With the development of my country's automobile industry and the increase in car ownership, traffic accidents are on the rise. Among them, the proportion of accidents and casualties caused by side impacts ranks first, and the accidents caused account for about 32% of the total. The resulting casualties accounted for 30.1% of the total casualties. The side collision safety of a car is one of the most important vehicle performance indicators of a car. There is not enough space in the front and rear of the side to cause structural deformation and absorb collision energy. The side of the car is the weakest part of the car body. If the car door is deformed and cannot be opened, the life safety of the occupant will be seriously endangered. Optimizing the structure of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/16B21D37/12B21D47/01
Inventor 单忠德张密兰姜超许应刘萌戎文娟张振
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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