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Thermoforming method of metal composite board

A metal composite and hot forming technology, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problem of not being able to obtain metal composite plates

Inactive Publication Date: 2012-03-28
DALIAN UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The above method can obtain ultra-high-strength martensitic materials, but cannot obtain metal composite plates with continuous gradient distribution of material properties along the length direction, and this material is widely used in impact-resistant energy-absorbing and load-bearing structures in industries such as automobiles and civil buildings. part

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  • Thermoforming method of metal composite board
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  • Thermoforming method of metal composite board

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Embodiment Construction

[0023] The method and beneficial effects of the present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-2 Shown, a kind of thermoforming method of metal clad plate, comprises the following steps:

[0024] A. Heating: Put the plate 4 into a numerically controlled heating furnace with segmental heating function, so that the plate 4 is divided into four parts according to the length direction: 550-650°C, 650-750°C, 750-850°C and 900-100°C The temperature zone is heated and kept warm for 3 minutes;

[0025] B. Cooling and forming: the plate 4 is then put into molds with different distributions of cooling pipelines 3 for thermoforming, and the molds include an upper mold 1 and a lower mold 2 .

[0026] The cooling pipelines 3 according to the present invention are distributed and installed inside the upper mold 1 and the lower mold 2 respectively, and their distribution density is symmetrical up and down.

[0027] Accord...

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Abstract

The invention discloses a thermoforming method of a metal composite board. The method comprises the following steps of: putting a board in a numerical control heating furnace with a segmental heating function so that the board is heated according to four temperature areas in the length direction of the board, and carrying out heat insulation for 3 minutes, wherein the four temperature areas of the board are respectively between 550 DEG C and 650 DEG C, between 650 DEG C and 750 DEG C, between 750 DEG C and 850 DEG C and between 900 DEG C and 1000 DEG C; and then thermoforming the board in a die distributed with different cooling pipelines, wherein the die comprises an upper die and a lower die, and the part where the distribution density of the cooling pipelines is large corresponds to the high-temperature part of the board. In the invention, through controlling the heating temperature in the thermoforming process and the distribution of the cooling pipelines of the die, a special metal composite board of which material properties are in continuous gradient distribution along the length direction is obtained, and the metal composite board is quite suitable to serve as an impact-resistance material.

Description

technical field [0001] The invention relates to a forming method of a metal plate, in particular to a thermoforming method of a metal composite plate. Background technique [0002] The hot forming technology of high-strength steel plate, also known as hot stamping technology, has attracted more and more attention from the industry. The technical advantages of the thermoforming process are: it can form complex bearing parts with a strength of up to 1500MPa; at high temperature, the material has good plasticity and formability, and can form complex stamping parts at one time; forming at high temperature can eliminate the impact of springback, and the parts have high precision. Good forming quality. [0003] In the hot forming process of ordinary steel plates, the plates are heated in a heating furnace at 850-950°C and held for a few minutes to fully austenize the plates, and then the red-hot plates are sent into a mold with a cooling system for stamping and forming, and are s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/00B21D37/16C21D8/02
Inventor 马宁胡平
Owner DALIAN UNIV OF TECH
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