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Super-strength steel hot stamping die capable of carrying out rapid spotting through gas assistance

A hot stamping die, gas-assisted technology, applied in the field of hot stamping, can solve the problems of uneven cooling, fast and slow cooling of the sheet, and achieve the effect of avoiding the temperature of the sheet falling too fast and closing the mold quickly.

Inactive Publication Date: 2014-03-26
JILIN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention designs a gas-assisted rapid clamping ultra-high-strength steel hot stamping die, which mainly solves the problem of excessive cooling of the sheet metal, uneven cooling, and poor mechanical properties of the workpiece caused by the slow clamping speed of the ordinary hydraulic press in the hot stamping forming process. And other issues

Method used

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  • Super-strength steel hot stamping die capable of carrying out rapid spotting through gas assistance
  • Super-strength steel hot stamping die capable of carrying out rapid spotting through gas assistance
  • Super-strength steel hot stamping die capable of carrying out rapid spotting through gas assistance

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Embodiment Construction

[0016] The specific content of the present invention and its specific implementation will be further described below in conjunction with the accompanying drawings.

[0017] The mold refers to figure 2 , including: 1. Upper template, 2. Upper air pipe, 3. Cylinder, 4. Lower air pipe, 5. Fixed plate, 6. Punch die, 7. Lower die holder, 8. Die die, 9. Cooling pipe, 10. Positioning device and other main parts. First, put the heated and heat-preserved sheet 11 on the thermoforming mold, the hydraulic press starts the downward stroke, and its slider pushes the mold upper template 1 to go down, and at the same time, the air in the cylinder 3 pushes the punch 6 to go down quickly, and the sheet 11 is quickly stamped Forming and clamping with the die 8, the slider of the hydraulic press pushes the upper template 1 to continue downward (the gas in the cylinder 3 is compressed, and the piston rod retreats), until it reaches the bottom dead center of the press and stops, the punch 6 and ...

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Abstract

The invention relates to a super-strength steel hot stamping die capable of carrying out rapid spotting through gas assistance and belongs to the field of hot stamping forming. The die is mainly formed by an air cylinder (3), a male die (6), a female die (8), a fixing plate (5), an upper die plate (1), a lower die base (7) and other main parts. The male die (6) is arranged on the upper die plate (1) through the fixing plate (5). The air cylinder (3) is arranged in the fixing plate. A piston rod of the air cylinder is connected with the male die. In the stamping process, air enters to push the male die to rapidly descend through the air cylinder, a sheet metal (11) is rapidly stamped and formed, and the male die and the female die (8) rapidly carry out spotting. The super-strength steel hot stamping die mainly solves the problems that a used common hydraulic machine is too low in spotting speed, thus, the temperature of the sheet metal drops too fast, the cooling effect is uneven, and the mechanical properties of a workpiece is poor in the hot stamping forming process, and has importance guiding significance on utilizing an existing common hydraulic machine to produce super-strength steel hot stamping pieces for manufacturing enterprises.

Description

Technical field: [0001] The invention relates to a gas-assisted fast die-closing ultra-high-strength steel hot stamping die, which belongs to the technical field of hot stamping forming. Background technique: [0002] Hot stamping forming technology is a new technology used to manufacture ultra-high-strength steel sheet stamping parts for automobiles. The strength of the parts after forming is significantly improved, which can reach 1500MPa. Moreover, the formed parts have small springback and high precision at high temperatures, and are widely used in automobile bodies. In the manufacture of structural parts. The process principle of the hot stamping forming technology is to heat the boron alloy steel plate to 900-950°C, keep it warm for 4-5 minutes to make it completely austenitized, and then quickly move it to a mold with a cooling pipe for rapid stamping (to prevent the plate Excessive reduction of the material temperature), the formed part is cooled and quenched by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/12
Inventor 陆冠含张眸睿谷诤巍徐虹李欣
Owner JILIN UNIV
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