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S-shaped stamping die capable of realizing uniform water cooling and partitioned cooling

A technology of zone cooling and stamping die, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of increasing manufacturing cost and reducing production efficiency, and achieve the effect of improving production efficiency, simple structure and reducing manufacturing cost.

Inactive Publication Date: 2015-05-27
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the uniform water cooling and partition cooling of hot stamping parts require two different sets of molds, which cannot be realized in one set of molds, which increases manufacturing costs and reduces production efficiency

Method used

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  • S-shaped stamping die capable of realizing uniform water cooling and partitioned cooling
  • S-shaped stamping die capable of realizing uniform water cooling and partitioned cooling
  • S-shaped stamping die capable of realizing uniform water cooling and partitioned cooling

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Figure 8 A schematic diagram showing uniform water cooling of the mold is shown. The first cooling water circuit U, the second cooling water circuit V, the third cooling water circuit W, the fourth cooling water circuit X, the fifth cooling water circuit Y and the sixth cooling water circuit Z all pass water, which will heat to Austenitic The boron steel plate in the solidified state is quickly transferred to the mold for stamping. Under the condition of ensuring a certain pressure, through the cooling effect of the water flow in the cooling water channel 15, each area of ​​the plate can be cooled in the mold at the same cooling rate> 27 ℃ / s for quenching treatment, and after a period of holding pressure quenching, ultra-high-strength steel parts with uniform martensitic structure are obtained.

Embodiment 2

[0031] Figure 9A schematic diagram showing zoned cooling of the mold is shown. The first cooling water circuit U, the second cooling water circuit V, the fourth cooling water circuit X and the fifth cooling water circuit Y all pass water to cool the punch I5A, punch II5B, die I13A, and die II13B Function, the third cooling water circuit W and the sixth cooling water circuit Z are not connected to water, remove the plug 14 at the right end of the cooling water channel 15 in the punch III5C and the concave mold III13C, and the cooling water channel in the punch III5C and the concave mold III13C Insert the heating rod 8 in 15, and by controlling the temperature of the heating rod 8, the punch III5C and the die III13C are heated to a certain temperature higher than the punch I5A, the punch II5B, the die I13A, and the die II13B. The boron steel plate in the tempered state is quickly transferred to the mold for stamping. Under the condition of ensuring a certain pressure, each are...

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Abstract

The invention discloses an S-shaped stamping die capable of realizing uniform water cooling and partitioned cooling, belonging to the technical field of die structures. According to the S-shaped stamping die capable of realizing uniform water cooling and partitioned cooling, cooling water channels are formed in a male die and therefore a first cooling water loop, a second cooling water loop and a third cooling water loop are formed; cooling water channels are formed in a female die and a fourth cooling water loop, a fifth cooling water loop and a sixth cooling water loop are formed; the cooling water channels are connected with copper pipes; the copper pipe is connected with water supply rubber tubes; water is charged into a part of or all the cooling water channels; and heating rods are inserted into cooling water channels in which water does not circulates. The stamping die is S-shaped, the one-die multi-purpose aim is achieved, the stamping die can realize uniform water cooling and partitioned cooling and is simple in structure and convenient to mount, the manufacturing cost is effectively reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to an S-shaped stamping die capable of realizing both uniform water cooling and zoned cooling, and belongs to the technical field of die structures. Background technique [0002] In the field of automobile manufacturing, the mold structure design is an extremely important part of the design process, among which the stamping mold is the most important, and it is also an important link in the formation of independent research and development capabilities. [0003] Hot forming technology, also known as hot stamping technology, is to heat the boron steel plate (initial strength of 500-600MPa) to the austenitized state, quickly transfer it to the mold for high-speed stamping, and ensure a certain pressure. Quenching treatment is carried out in the mold at a cooling rate greater than 27°C / s, and the pressure is quenched for a period of time to obtain a forming method of ultra-high-strength steel parts with a uniform martensi...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D37/16
CPCB21D37/10B21D37/16
Inventor 申国哲刘立忠葛永鹏胡平盈亮张金女林发财
Owner DALIAN UNIV OF TECH
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